JPS6040806U

JPS6040806U - Pneumatic cylinder with dead weight fall prevention

Info

Publication number: JPS6040806U
Application number: JP13394683U
Authority: JP
Inventors: 隆木村
Original assignee: Individual
Current assignee: Individual
Priority date: 1983-08-29
Filing date: 1983-08-29
Publication date: 1985-03-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図ないし第４図は本考案の第１実施例を示し、第１
図は縦断面図、第２図は第１図のＡ−Ａ線断面図、第３
図および第４図は作用説明図、第５図および第６図は本
考案の第２実施例を示し第５図は縦断面図、第６図は第
５図のＡ−Ａ線断面図、第７図は従来例を示す路体図で
ある。１．２６・・・自重落下防止付空圧シリンダ、４゜２７
・・・シリンダ、５，２８・・・隔壁部、６・・・摺動
孔、７．２９・・・ピストン作動室、７ａ、２９ａ・・
・ヘッド側室、８．３０・・・ロック室、１０．３２・
・・ピストンロッド、３２ａ・・・上部ロッド、１０ａ
。３２ｂ・・・ロック溝、１５．３４・・・軸受部、１６
゜３５・・・摺動孔、１７．３６・・・ボール受は孔、
１８・・・ロックボール、１９・・・ロックピストン、
２０・・・受は溝、２２・・−ばね。第１図第３図1 to 4 show a first embodiment of the present invention.
The figure is a longitudinal cross-sectional view, Figure 2 is a cross-sectional view taken along line A-A in Figure 1, and Figure 3 is a cross-sectional view taken along line A-A in Figure 1.
5 and 6 show a second embodiment of the present invention, FIG. 5 is a longitudinal sectional view, and FIG. 6 is a sectional view taken along the line A-A in FIG. 5. FIG. 7 is a road diagram showing a conventional example. 1.26...Pneumatic cylinder with self-weight drop prevention, 4゜27
... Cylinder, 5, 28 ... Partition wall part, 6 ... Sliding hole, 7.29 ... Piston working chamber, 7a, 29a ...
・Head side chamber, 8.30...Lock chamber, 10.32・
... Piston rod, 32a ... Upper rod, 10a
. 32b...Lock groove, 15.34...Bearing part, 16
゜35...Sliding hole, 17.36...Ball holder is hole,
18... Lock ball, 19... Lock piston,
20...The receiver is a groove, 22...-Spring. Figure 1 Figure 3

Claims

[Scope of utility model registration request]

A partition is provided in the cylinder to partition the cylinder into a piston working chamber and a lock chamber, and a cylindrical bearing is provided in the center of the rod cover on the lock chamber side to protrude into the lock chamber and allow the piston rod to slide. A plurality of ball bearings are provided in the bearing part and a lock ball is installed inside the bearing part, and a groove is formed in the lock chamber to fit the bearing part externally and to receive the lock balls in the inner circumferential part. A lock piston having a recessed shape is resiliently mounted via a spring, and a lock groove is recessed in a part of the outer periphery of the piston rod to engage with the lock ball when the piston reaches its rising end. . A pneumatic cylinder with self-weight drop prevention, further characterized in that the lock chamber communicates with a head side chamber of the piston working chamber.