JPH0190797U

JPH0190797U -

Info

Publication number: JPH0190797U
Application number: JP18614587U
Authority: JP
Priority date: 1987-12-07
Filing date: 1987-12-07
Publication date: 1989-06-14

Description

[Brief explanation of drawings]

第１図〜第３図は、本考案にかかる第１実施例
にかかる干渉防止装置を示し、第１図はその要部
断面平面図、第２図および第３図はそのシリンダ
ロツドを降ろした状態及び最上昇させたときの状
態を示す左側面図、第４図は第２実施例にかかる
干渉防止装置の要部断面平面図、第５図は従来例
の要部断面平面図、第６図はその従来例の左側面
図である。１…干渉防止装置、２…ブラケツト、３…チエ
ーン、４…アウタマスト、５…インナマスト、６
…リフトシリンダ、６２…シリンダチユーブ、６
３…シリンダロツド、７…チエーン干渉防止装置
、７０…円筒環状体、７５…半環状体。 1 to 3 show an interference prevention device according to a first embodiment of the present invention, FIG. 1 is a cross-sectional plan view of the main part thereof, and FIGS. 2 and 3 are the state in which the cylinder rod is lowered. 4 is a cross-sectional plan view of the main part of the interference prevention device according to the second embodiment, FIG. 5 is a cross-sectional plan view of the main part of the conventional example, and FIG. is a left side view of the conventional example. 1... Interference prevention device, 2... Bracket, 3... Chain, 4... Outer mast, 5... Inner mast, 6
...Lift cylinder, 62...Cylinder tube, 6
3...Cylinder rod, 7...Chain interference prevention device, 70...Cylindrical annular body, 75...Semi-annular body.

Claims

[Claims for Utility Model Registration] (1) A pair of outer masts, a pair of inner masts that are slidably guided by the outer masts and guide the vertical movement of the lift bracket, a pair of lift chains connected to the brackets, and the chains. and a lift cylinder having a cylinder rod erected near the inner mast, wherein the inner mast has an annular or substantially half-shaped cylinder located between the cylinder rod and the chain so as to surround the cylinder rod. A chain interference prevention device for a forklift truck, comprising a fixed annular chain interference prevention device, and the interference prevention device is arranged so as to be located approximately in the center of the length of the chain when the cylinder rod is at its highest point. Device. (2) The chain interference prevention device is a forklift truck chain interference prevention device as set forth in claim 1 of the Utility Model Registration Claim, which is made of a perforated metal material. (3) The chain interference prevention device for a forklift truck as set forth in claim 1, wherein the chain interference prevention device is made of reinforced plastic material.