Material or article handling – Vertically swinging load support – Shovel or fork type
Patent
1989-02-06
1990-01-02
Reese, Randolph A.
Material or article handling
Vertically swinging load support
Shovel or fork type
172272, 414786, E02F 340
Patent
active
048909742
ABSTRACT:
Guide structure for assisting in the connection of a dipper stick of a machine, such as a back-hoe to a tool, such as a bucket, which is operated by the machine. The tool has a connection portion provided with a pair of aligned openings. The dipper stick has a tubular connection member which must be aligned with the openings in the connection portion for attachment of the tool to the dipper stick. In this invention a pair of guide flanges is attached to the connection portion of the tool. Each guide flange has an abutment portion which is positioned adjacent one of the openings in the connection portion. In the procedure of attachment of the dipper stick to the tool, the dipper stick is moved, and the tubular connection portion is guided along the guide flanges until the tubular connection member engages the abutment portions of the guide flanges. When the tubular connection member engages the abutment portions of the guide flanges, the tubular connection member is in alignment with the openings in the connection portion of the tool, and a fastener is inserted through the opening and through the tubular connection member, and the dipper stick is thus attached to the tool.
REFERENCES:
patent: 3874533 (1975-04-01), Montgomery et al.
patent: 4127203 (1978-11-01), Arnold
patent: 4187050 (1980-02-01), Barbee
patent: 4225283 (1980-09-01), Baker et al.
patent: 4373852 (1983-02-01), Maurer
patent: 4643631 (1987-02-01), Maurer et al.
patent: 4836741 (1989-06-01), St. Louis et al.
Caterpillar, Change to the Tools That Can Do Your Jobs Right, AEDC6889 Backhoe Buckets For Every Application.
Caterpillar, 416 Backhoe Loader, AEHQ2708(7-87), pages 3 and 5.
Reese Randolph A.
Thompson Jeffrey L.
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