JPS6227256U

JPS6227256U -

Info

Publication number: JPS6227256U
Application number: JP11948785U
Authority: JP
Priority date: 1985-08-03
Filing date: 1985-08-03
Publication date: 1987-02-19

Description

[Brief explanation of the drawing]

図は本考案の一実施例を示すもので、第１図は
最短縮状態のシリンダ装置を示す断面正面図、第
２図は第１図の―断面図、第３図は第１図の
―断面図、第４図は最伸長状態のシリンダ装
置を示す一部断面正面図である。１……シリンダ装置、２……シリンダ筒、３…
…中間ロツド、４……先端ロツド、５……電動機
、５ａ……出力軸、６……駆動ねじ棒、６ａ……
係合面、７……フランジ接手、８……軸受部材、
８ａ……雌ねじ孔、８ｂ……鍔部、９……鋼球、
１０……案内レール、１１……回転ロツド、１２
……ベアリング、１３……ブツシユ、１３ａ……
係合穴、１４……ダストシール、１６，１８，１
９……近接スイツチ、１７……鉄片。 The drawings show an embodiment of the present invention, in which Fig. 1 is a cross-sectional front view showing the cylinder device in its most shortened state, Fig. 2 is a sectional view of Fig. 1, and Fig. 3 is a sectional view of Fig. 1. The sectional view and FIG. 4 are partially sectional front views showing the cylinder device in the most extended state. 1... Cylinder device, 2... Cylinder tube, 3...
...Intermediate rod, 4...Tip rod, 5...Electric motor, 5a...Output shaft, 6...Drive threaded rod, 6a...
Engagement surface, 7... flange joint, 8... bearing member,
8a... Female screw hole, 8b... Flange, 9... Steel ball,
10... Guide rail, 11... Rotating rod, 12
...Bearing, 13...Butsuyu, 13a...
Engagement hole, 14...Dust seal, 16, 18, 1
9... Proximity switch, 17... Iron piece.

Claims

[Scope of utility model registration request]

It has a cylinder cylinder equipped with an electric motor at the base end, a tubular intermediate rod fitted into the cylinder cylinder so as to be removable from the distal end, and a tip rod fitted into the intermediate rod so as to be removable from the distal end. In a screw type two-stage cylinder device that is inserted into the center of the cylinder cylinder and is driven to expand and contract by the rotation of a threaded rod driven by the electric motor, a hollow tip rod is engaged with an inner circumferential surface of an intermediate rod. The intermediate rod is fitted so as to be movable in the axial direction, and the intermediate rod is engaged with the inner circumferential surface of the cylinder tube to restrict rotation, and the proximal rod is fitted and inserted so as to be movable in the axial direction. A hollow rotating rod having a male thread on the outer periphery and an engagement hole on the proximal end is screwed into the female threaded portion, and the proximal end of the intermediate rod has a female threaded hole in the center and the rotating rod has a female threaded hole in the center. A bearing member that rotatably supports the proximal end of the rod is unrotatably mounted, and the bearing member is axially movable and unrotatably engaged with the engagement hole portion of the rotary rod in the female threaded hole. The drive threaded rod has a cross-sectional shape to be inserted, and has a male thread formed on its outer peripheral surface to be threaded into the female threaded hole, and a drive threaded rod whose base end is connected to the output end of the electric motor is rotatably inserted thereinto. A screw type two-stage cylinder device characterized by the following: