Spring lock mechanism for a ground-engaging

a technology of spring lock and ground, which is applied in the direction of earth drilling and mining, cutting machines, slitting machines, etc., can solve the problem of the spring lock mechanism returning to its uncompressed height, and achieve the effect of reducing the failure rate of the bi

Inactive Publication Date: 2006-11-23
SOLLAMI JIMMIE L
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0018] The present invention is a spring lock mechanism for an earthworking bit. The spring lock mechanism is provided for engaging an earthworking bit, or bit, into a positive engagement with a bit holder, thereby reducing the failure rate of the bit while also allowing the bit to rotate within the bit block.

Problems solved by technology

However, when the retainer is removed, the spring lock mechanism returns to its uncompressed height.

Method used

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Embodiment Construction

[0036] A spring lock mechanism for an earthworking bit is disclosed. The spring lock mechanism is illustrated in the Figures generally at 10. The spring lock mechanism 10 is provided for engaging an earthworking bit, or bit 20, into a positive engagement with a bit holder, or support block 30, thereby reducing the failure rate of the bit 20 while also allowing the bit 20 to rotate within the support block 30.

[0037] As illustrated in FIG. 1, the bit 20 used in association with the present invention includes a body which defines a bit 22 and a shank 24. The shank 24 is adapted to be received within a receptor 32 defined by a holder, or support block 30, carried by an implement of earth working equipment such as the chain excavator or a rotatable drum, or the like. The bit 20 and the support block receptor 32 are cooperatively configured such that when the bit 20 is inserted into the support block receptor 32, the bit 20 is permitted to rotate within the receptor 32.

[0038] Further, t...

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PUM

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Abstract

A spring lock mechanism for a ground-engaging tool, or bit. The spring lock mechanism is provided for engaging a bit into a positive engagement with a bit holder, thereby reducing the failure rate of the bit while also allowing the bit to rotate within the bit block. The spring lock mechanism is configured to be received about the shank of a bit between a support block and a retainer. The spring lock mechanism defines a frustoconical configuration having a selected inside diameter, outside diameter, and uncompressed height. The spring lock mechanism is fabricated from a resilient material to allow it to compress. When compressed, the spring lock mechanism biases the bit into the support block receptor.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This is a continuation-in-part of application Ser. No. 11 / 132,781, filed May 19, 2005.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] Not Applicable BACKGROUND OF THE INVENTION [0003] 1. Field of Invention [0004] The present invention pertains to the field of earth working equipment. More particularly, the present invention is related to a spring lock mechanism for reducing axial movement of a ground-engaging tool or bit within a bit holder block. [0005] 2. Description of the Related Art [0006] In the field of earthworking, various types of equipment are used in various applications. Equipment varies from trenchers using chain excavation lines to rotatable drum equipment used for excavating rock, highly compressed earth, and mining materials. A plurality of ground-engaging tools, or bits, is attached to each of these machines for engaging and penetrating into the material being excavated. [0007] Prior to the use o...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E21C25/10
CPCE21C35/197
Inventor SOLLAMI, JIMMIE L.
Owner SOLLAMI JIMMIE L
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