JPH0299900U - - Google Patents
Info
- Publication number
- JPH0299900U JPH0299900U JP826589U JP826589U JPH0299900U JP H0299900 U JPH0299900 U JP H0299900U JP 826589 U JP826589 U JP 826589U JP 826589 U JP826589 U JP 826589U JP H0299900 U JPH0299900 U JP H0299900U
- Authority
- JP
- Japan
- Prior art keywords
- overload
- jack
- screw shaft
- jack case
- limit switch
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 2
Landscapes
- Transmission Devices (AREA)
- Gear Transmission (AREA)
Description
第１図は本考案の実施例を示す縦断正面図であ
り、第２図は従来例を示す縦断正面図である。
１１……ネジ軸、１２……ナツト、１３……ウ
オームホイール、１５，１６，２４……ジヤツキ
ケース、２０……過負荷検出作動子、２１……バ
ネ、２２ａ，２２ｂ……カツプ状部材、２３ａ，
２３ｂ……ストライカ、２５ａ，２５ｂ……リミ
ツトスイツチ。
FIG. 1 is a longitudinal sectional front view showing an embodiment of the present invention, and FIG. 2 is a longitudinal sectional front view showing a conventional example. DESCRIPTION OF SYMBOLS 11... Screw shaft, 12... Nut, 13... Worm wheel, 15, 16, 24... Jack case, 20... Overload detection actuator, 21... Spring, 22a, 22b... Cup-shaped member, 23a ，
23b...Striker, 25a, 25b...Limit switch.
Claims (1)
ケース内に挿入し、該ネジ軸に螺合するナツトを
ジヤツキケースに回動自在に軸受した駆動ウオー
ムホイールに軸方向に摺動自在にスプライン係合
させ、該ナツトの外周に突設したフランジを回動
自在に係合した過負荷検出作動子の軸方向移動に
押動されるストライカを前記ジヤツキケースに貫
設した透孔内に弾性保持し、前記ストライカによ
つて作動するリミツトスイツチをジヤツキケース
に取付け、ネジ軸に過負荷が作用したときにスト
ライカが過負荷方向に移動してリミツトスイツチ
を作動しウオームホイールの駆動源を断つジヤツ
キの過負荷保護装置。 A screw shaft with a load bearing body attached to the tip is inserted into the jack case, and a nut screwed onto the screw shaft is splined to be slidably axially connected to a driving worm wheel rotatably supported on the jack case. , a striker that is pushed by the axial movement of an overload detection actuator rotatably engaged with a flange protruding from the outer periphery of the nut is elastically held in a through hole penetrated through the jack case; A jack overload protection device in which a limit switch operated by a screw is attached to a jack case, and when an overload is applied to a screw shaft, a striker moves in the overload direction to operate the limit switch and cut off the drive source of a worm wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989008265U JPH0630787Y2 (en) | 1989-01-30 | 1989-01-30 | Jack overload protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989008265U JPH0630787Y2 (en) | 1989-01-30 | 1989-01-30 | Jack overload protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0299900U true JPH0299900U (en) | 1990-08-08 |
| JPH0630787Y2 JPH0630787Y2 (en) | 1994-08-17 |
Family
ID=31213990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989008265U Expired - Fee Related JPH0630787Y2 (en) | 1989-01-30 | 1989-01-30 | Jack overload protector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0630787Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60209500A (en) * | 1984-03-31 | 1985-10-22 | 株式会社椿本チエイン | Rectilinear motion machine |
-
1989
- 1989-01-30 JP JP1989008265U patent/JPH0630787Y2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60209500A (en) * | 1984-03-31 | 1985-10-22 | 株式会社椿本チエイン | Rectilinear motion machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0630787Y2 (en) | 1994-08-17 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |