ES346821A1 - Bucket ejector assembly for an excavating grab - Google Patents

Bucket ejector assembly for an excavating grab

Info

Publication number
ES346821A1
ES346821A1 ES346821A ES346821A ES346821A1 ES 346821 A1 ES346821 A1 ES 346821A1 ES 346821 A ES346821 A ES 346821A ES 346821 A ES346821 A ES 346821A ES 346821 A1 ES346821 A1 ES 346821A1
Authority
ES
Spain
Prior art keywords
shells
arms
bucket
ejector assembly
grab
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES346821A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Poclain SA
Original Assignee
Poclain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Poclain SA filed Critical Poclain SA
Publication of ES346821A1 publication Critical patent/ES346821A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/14—Grabs opened or closed by driving motors thereon
    • B66C3/16—Grabs opened or closed by driving motors thereon by fluid motors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with 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
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • E02F3/4135—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device with grabs mounted directly on a boom

Abstract

The shells 3, 4 of a grab bucket have ejector plates 13, 14, which are moved, by arms 15, 16, towards the open ends of the shells as the bucket is opened. The shells are moved by arms 6, 7 attached to the movable cylinder 12 of an hydraulic ram and the arms 15, 16 are either attached, as shown, to the arms 6, 7, or directly to the cylinder 12. The shells 3, 4 and ejector plates 13, 14 are coaxially pivoted to a cross-head 2 at 5, 5a.
ES346821A 1966-11-07 1967-11-06 Bucket ejector assembly for an excavating grab Expired ES346821A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR82773A FR1506485A (en) 1966-11-07 1966-11-07 Improvements to clamshells

Publications (1)

Publication Number Publication Date
ES346821A1 true ES346821A1 (en) 1969-01-01

Family

ID=8620574

Family Applications (1)

Application Number Title Priority Date Filing Date
ES346821A Expired ES346821A1 (en) 1966-11-07 1967-11-06 Bucket ejector assembly for an excavating grab

Country Status (4)

Country Link
US (1) US3451151A (en)
ES (1) ES346821A1 (en)
FR (1) FR1506485A (en)
GB (1) GB1148695A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641689A (en) * 1969-07-07 1972-02-15 Billings R O Hydraulically actuated clamshell buckets
NL8901542A (en) * 1989-06-20 1991-01-16 Verachtert Beheer Bv APPARATUS FOR PIECING ARTICLES CONTAINING CONCRETE OR SIMILAR MATERIAL
JPH07158103A (en) * 1993-12-10 1995-06-20 Japanic:Kk Construction of clam-shell bucket and controlling circuit thereof
US5702227A (en) * 1996-05-13 1997-12-30 Berg; Ronald Ejector bucket

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2828038A (en) * 1955-08-03 1958-03-25 L A Young Spring & Wire Corp Excavating apparatus
DE1166432B (en) * 1958-09-10 1964-03-26 Martensen Maskinfabrik J Gripper with stripping bodies
FR1398053A (en) * 1964-03-25 1965-05-07 Poclain Sa Improvements to clamshells

Also Published As

Publication number Publication date
DE1634949B2 (en) 1976-04-01
US3451151A (en) 1969-06-24
DE1634949A1 (en) 1971-02-25
GB1148695A (en) 1969-04-16
FR1506485A (en) 1967-12-22

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