Processing

Please wait...

Settings

Settings

Goto Application

1. US20040131459 - Slide arm for working machine

Office
United States of America
Application Number 10363020
Application Date 16.06.2003
Publication Number 20040131459
Publication Date 08.07.2004
Grant Number 7011488
Grant Date 14.03.2006
Publication Kind B2
IPC
E02F 3/36
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
FDREDGING; SOIL-SHIFTING
3Dredgers; Soil-shifting machines
04mechanically-driven
28with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets
36Component parts
E02F 3/38
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
FDREDGING; SOIL-SHIFTING
3Dredgers; Soil-shifting machines
04mechanically-driven
28with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets
36Component parts
38Cantilever beams; Dipper-arms; Bucket-arms
E02F 3/39
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
FDREDGING; SOIL-SHIFTING
3Dredgers; Soil-shifting machines
04mechanically-driven
28with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets
36Component parts
38Cantilever beams; Dipper-arms; Bucket-arms
39with telescopic arms
B66C 23/00
BPERFORMING OPERATIONS; TRANSPORTING
66HOISTING; LIFTING; HAULING
CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
23Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes
B66C 23/687
BPERFORMING OPERATIONS; TRANSPORTING
66HOISTING; LIFTING; HAULING
CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
23Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes
62Constructional features or details
64Jibs
687telescopic
B66C 23/697
BPERFORMING OPERATIONS; TRANSPORTING
66HOISTING; LIFTING; HAULING
CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
23Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes
62Constructional features or details
64Jibs
687telescopic
697providing bearing means between sections
CPC
E02F 3/286
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
3Dredgers; Soil-shifting machines
04mechanically-driven
28with digging tools mounted on a dipper- or bucket-arm ; , i.e. there is either one arm or a pair of arms; , e.g. dippers, buckets
283with a single arm pivoted directly on the chassis
286telescopic or slidable
B66C 23/705
BPERFORMING OPERATIONS; TRANSPORTING
66HOISTING; LIFTING; HAULING
CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
23Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
62Constructional features or details
64Jibs
70constructed of sections adapted to be assembled to form jibs or various lengths
701telescopic
705telescoped by hydraulic jacks
B66C 23/707
BPERFORMING OPERATIONS; TRANSPORTING
66HOISTING; LIFTING; HAULING
CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
23Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
62Constructional features or details
64Jibs
70constructed of sections adapted to be assembled to form jibs or various lengths
701telescopic
707guiding devices for telescopic jibs
Applicants Komatsu Ltd.
Kabushiki Kaisha Muroto Tekkosho
Inventors Masumoto Nobuyoshi
Itoh Tatsushi
Sakashita Toshihiko
Agents Frishauf, Holtz, Goodman & Chick, P.C.
Priority Data 2000266887 04.09.2000 JP
Title
(EN) Slide arm for working machine
Abstract
(EN)

A slide arm for a work implement is provided, which is simply structured to obtain improved assembling precision thereby ensuring smooth operation. To this end, the slide arm is such that a plurality of tubular structural bodies (i.e., outer and inner tubes), each of which is formed by bending a one-piece plate into a shape having a substantially triangular cross-section and circular vertex portions, are telescoped one within the other with sliding members (i.e., plain bearing units and slide block pieces) interposed between them at the vertex portions and such that a sliding mechanism is disposed for sliding the tubular structural bodies.