JPS6330630U - - Google Patents
Info
- Publication number
- JPS6330630U JPS6330630U JP12540186U JP12540186U JPS6330630U JP S6330630 U JPS6330630 U JP S6330630U JP 12540186 U JP12540186 U JP 12540186U JP 12540186 U JP12540186 U JP 12540186U JP S6330630 U JPS6330630 U JP S6330630U
- Authority
- JP
- Japan
- Prior art keywords
- engagement
- clutch
- drive gear
- worm
- wheel
- 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.)
- Pending
Links
- 230000002265 prevention Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Description
図面は本考案の一実施例を示し、第１図は伸縮
駆動装置の要部の縦断面図、第２図はクラツチプ
レートの平面図、第３図は第２図のＡ矢視図、第
４図は第２図のＢ―Ｂ線断面図、第５図はクラツ
チホイールの平面図、第６図は第５図のＣ矢視図
、第７図は第５図のＤ矢視図、第８図は第５図の
Ｅ―Ｅ線断面図である。
１……ケーシング、２……支軸、３……ナツト
、４……ウオームホイール、５……回転軸、６…
…ウオーム、７……ドライブギヤ、８……隔離板
、９……ラツク歯付ドライブコード、１０……ク
ラツチプレート、１１……クラツチホイール、１
２……スプライン、１３……Ｅリング、１４……
ばね受、１５……コイルばね、１６……嵌合凹部
、１７……嵌合凸部、１８……係合凸部、１９…
…スプライン嵌合穴、２０……係合摩擦力の大き
い係合凹部、２１……係合摩擦力の小さい係合凹
部、２２……スイツチカウンタギヤ、２３……カ
ウンタギヤ。
The drawings show one embodiment of the present invention; FIG. 1 is a longitudinal cross-sectional view of the main parts of the telescopic drive device, FIG. 2 is a plan view of the clutch plate, and FIG. 3 is a view taken in the direction of arrow A in FIG. Figure 4 is a sectional view taken along the line B-B in Figure 2, Figure 5 is a plan view of the clutch wheel, Figure 6 is a view taken in the direction of arrow C in Figure 5, Figure 7 is a view taken in the direction of arrow D in Figure 5, FIG. 8 is a sectional view taken along the line EE in FIG. 5. 1... Casing, 2... Support shaft, 3... Nut, 4... Worm wheel, 5... Rotating shaft, 6...
... Worm, 7 ... Drive gear, 8 ... Separation plate, 9 ... Drive cord with rack teeth, 10 ... Clutch plate, 11 ... Clutch wheel, 1
2...Spline, 13...E ring, 14...
Spring receiver, 15... Coil spring, 16... Fitting recess, 17... Fitting protrusion, 18... Engaging protrusion, 19...
...Spline fitting hole, 20...Engagement recess with large engagement friction force, 21...Engagement recess with small engagement friction force, 22...Switch counter gear, 23...Counter gear.
Claims (1)
イールと、該ウオームホイールと一体的に設けた
回転軸に対し回転自在に軸装されたドライブギヤ
と、このドライブギヤに噛合うラツク歯を有する
ドライブコードと、前記ドライブギヤに固設され
所定間隔の係合凸部を有するクラツチプレートと
、前記回転軸に対しその軸方向に摺動可能に弾持
され、前記クラツチプレートと対向してその係合
凸部と係合する係合凹部を有するクラツチホイー
ルとを備え、 前記クラツチホイールの係合凹部は、前記係合
凸部との係合摩擦力の大きいものと、係合摩擦力
の小さいものとを交互に設けたことを特徴とする
伸縮駆動装置における過負荷防止クラツチ。[Scope of Claim for Utility Model Registration] A worm, a worm wheel that meshes with the worm, a drive gear that is rotatably mounted on a rotating shaft provided integrally with the worm wheel, and a drive gear that meshes with the drive gear. a drive cord having lock teeth; a clutch plate fixed to the drive gear and having engagement protrusions at predetermined intervals; and a clutch wheel having an engagement recess that engages with the engagement protrusion, the engagement recess of the clutch wheel having a large engagement friction force with the engagement protrusion, and a clutch wheel that has a large engagement friction force with the engagement protrusion. An overload prevention clutch for a telescopic drive device, characterized in that clutches with a small force are provided alternately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12540186U JPS6330630U (en) | 1986-08-15 | 1986-08-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12540186U JPS6330630U (en) | 1986-08-15 | 1986-08-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6330630U true JPS6330630U (en) | 1988-02-29 |
Family
ID=31018274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12540186U Pending JPS6330630U (en) | 1986-08-15 | 1986-08-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6330630U (en) |
-
1986
- 1986-08-15 JP JP12540186U patent/JPS6330630U/ja active Pending