JPS62136605U

JPS62136605U -

Info

Publication number: JPS62136605U
Application number: JP2395786U
Authority: JP
Priority date: 1986-02-20
Filing date: 1986-02-20
Publication date: 1987-08-28

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例である連結装置によ
り連結された連結板と油圧シリンダとを示す正面
断面図である。第２図は上記連結装置における球
面ナツトと雄ねじ部とがフリクシヨンリングによ
つて結合された状態を示す正面断面図であり、第
３図は上記フリクシヨンリングを取り出して示す
平面図である。第４図は上記連結装置によつてク
ランプアームと油圧シリンダのピストンロツドと
が連結されたフオークリフトを示す平面図である
。第５図は上記フオークリフトにおけるクランプ
アタツチメントを示す分解斜視図である。１４：クランプアーム、２８：油圧シリンダ、
３２：ピストンロツド、３４：連結板、７２：雄
ねじ部、７４：肩面、７６：フランジナツト、７
８：フランジ、８０：テーパ面、８４：貫通穴、
８６：凹球面、８８：座ぐり穴、９０：球面ナツ
ト、９２：凸球面、９４：フリクシヨンリング。 FIG. 1 is a front sectional view showing a connecting plate and a hydraulic cylinder connected by a connecting device according to an embodiment of the present invention. FIG. 2 is a front sectional view showing a state in which the spherical nut and the male threaded portion of the coupling device are connected by a friction ring, and FIG. 3 is a plan view showing the friction ring taken out. FIG. 4 is a plan view showing a forklift in which the clamp arm and the piston rod of the hydraulic cylinder are connected by the above-mentioned connecting device. FIG. 5 is an exploded perspective view showing the clamp attachment in the forklift. 14: Clamp arm, 28: Hydraulic cylinder,
32: Piston rod, 34: Connection plate, 72: Male thread, 74: Shoulder surface, 76: Flange nut, 7
8: Flange, 80: Tapered surface, 84: Through hole,
86: Concave spherical surface, 88: Counterbore, 90: Spherical nut, 92: Convex spherical surface, 94: Friction ring.

Claims

[Claims for Utility Model Registration] A device for connecting a piston rod of a hydraulic cylinder to a target member, the piston rod having a male threaded portion at its tip and a radially outward flange at the base end of the male threaded portion. While screwing the first nut,
A through hole perpendicular to the plate surface is formed in a connecting plate fixed at right angles to the axis of the piston rod in the target member, and a counterbore defined by a concave spherical surface is formed at one end of the through hole, and the male screw until a second nut having a convex spherical surface corresponding to the concave spherical surface at the end protruding into the countersunk hole is brought into contact with the first nut. When screwed together, the convex spherical surface cooperates with the flange to sandwich the connecting plate from both sides with a certain gap left, and the second nut does not protrude outside the counterbore hole, and the second nut has the aforementioned A piston rod connecting device for a hydraulic cylinder, characterized in that a friction member is fixed, which is elastically deformed as the screw is engaged and frictionally engages with the male threaded portion based on its restoring force.