JPH0278833U

JPH0278833U -

Info

Publication number: JPH0278833U
Application number: JP15872688U
Authority: JP
Priority date: 1988-12-06
Filing date: 1988-12-06
Publication date: 1990-06-18
Anticipated expiration: 2003-05-24
Also published as: JPH0519622Y2

Description

[Brief explanation of drawings]

第１図と第２図は本考案の第１実施例の破断側
面図、第３図はその挿入ロツド１６の要部を正面
と側面とで示す説明図、第４図と第５図は本考案
の第２実施例の破断側面図、第６図と第７図は本
考案の第３実施例の破断側面図、第８図と第９図
は本考案の第４実施例の破断側面図、第１０図〜
第１３図は本考案の第５実施例の破断側面図であ
る。１…アキユムレート、２…油圧シリンダ、３…
ピストン、４…ピストンロツド、７…スプリング
、９…ピストンリング、１１…流通孔、１３…チ
エツクバルブ、１４…オリフイス部、１５…挿入
孔、１６…挿入ロツド、１７…テーパ、１８…流
通孔、２２…シヨツクアブソーバ。 1 and 2 are cutaway side views of the first embodiment of the present invention, FIG. 3 is an explanatory view showing the main part of the insertion rod 16 from the front and side, and FIGS. 4 and 5 are the main parts of the insertion rod 16. FIGS. 6 and 7 are cutaway side views of the second embodiment of the invention, FIGS. 8 and 9 are cutaway side views of the fourth embodiment of the invention. , Figure 10~
FIG. 13 is a cutaway side view of the fifth embodiment of the present invention. 1...Accumulation rate, 2...Hydraulic cylinder, 3...
Piston, 4... Piston rod, 7... Spring, 9... Piston ring, 11... Communication hole, 13... Check valve, 14... Orifice portion, 15... Insertion hole, 16... Insertion rod, 17... Taper, 18... Communication hole, 22 ...Shock absorber.

Claims

[Scope of utility model registration request]

a hydraulic cylinder having an accumulation function and containing hydraulic oil; a piston rod that is externally operable attached to a piston that reciprocates within the hydraulic cylinder and reciprocates with the piston;
a spring that is inserted between the piston and the hydraulic cylinder and applies a biasing force to the piston rod in a direction that allows external operation; and a spring that is partitioned by the piston when the piston is moved by the spring biasing force. The hydraulic fluid in one of the hydraulic chambers can be moved to the other hydraulic chamber in the hydraulic cylinder, and when the piston moves against the spring biasing force, the hydraulic fluid in the other hydraulic chamber in the hydraulic cylinder can be moved to the other hydraulic chamber in the hydraulic cylinder. A check valve is formed on the piston to prevent the piston from moving to one of the hydraulic chambers, and when the piston moves against the spring biasing force, the hydraulic fluid in the other hydraulic chamber in the hydraulic cylinder is checked into the hydraulic cylinder. and an orifice portion formed in the piston rod in order to move the piston rod to one of the hydraulic chambers with a preset arbitrary flow resistance, the orifice portion being in communication with both of the hydraulic chambers. , an insertion hole formed in one of the piston rod and the hydraulic cylinder so as to be inserted and removed when the piston moves due to the spring biasing force and when the piston moves against the spring biasing force; and an insertion hole formed in one of the piston rod and the hydraulic cylinder; A shock absorber comprising an insertion rod formed on the other side of a hydraulic cylinder, and configured to be capable of increasing the flow resistance of the hydraulic fluid depending on the degree of insertion of the insertion rod into the insertion hole.