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Drill chuck

A fixture and drilling rig technology, applied in portable drilling rigs, manufacturing tools, drilling/drilling equipment, etc., can solve problems such as not having jaws

Inactive Publication Date: 2008-04-23
BLACK & DECKER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the user intends to loosen the clamp at low speeds, the clamp may not have enough torque to loosen the jaws from the bit

Method used

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Examples

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Embodiment Construction

[0016] The following descriptions of preferred specific embodiments are exemplary only and are not intended to limit the invention, its application or uses.

[0017] Referring to Figure 1, there is shown a drill rig 10 incorporating drill clamps 12 which can be clamped and loosened by operation of the drill in accordance with the principles of the present invention. The drill 10 includes a housing 14 having a handle portion 16 and a body portion 18 . A battery case 20 is detachably attached to the handle portion 16 . A trigger 22 is disposed on the handle 16 for selectively providing electrical current from the battery compartment 20 to a motor 24 disposed in the body portion 18 of the housing 14 . A multi-speed transmission 26 is drivably connected to the electric motor 24 . The multi-speed transmission is provided with a shift mechanism 28 including a shift lever 30 which can be moved by an operator to change the transmission ratio of the multi-speed transmission. The mul...

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Abstract

A drill is provided with a chuck that is capable of being tightened or loosened by operation of the drill. The chuck includes a shift mechanism that interacts with the multi-speed transmission of the drill to ensure that the transmission is shifted into a desired gear ratio whenever the chuck is shifted from a drill mode to a chuck mode.

Description

technical field [0001] The present invention relates to a drill clamp for a power drill device, and more particularly to a drill clamp capable of being clamped or loosened by operation of a drill. Background technique [0002] A drill clamp is used to cooperate with a power drill device to releasably engage a drill bit. Conventional drill clamps require specialized tools in order to clamp and loosen the drill clamp to and from the drill bit. More recently, drill clamps have been designed to be grippable by hand, wherein the user can turn the clamp sleeve of the drill clamp, causing the jaws of the drill clamp to engage and disengage the drill bit without tools. The user of the drill must turn the adjustable clamp sleeve with one hand while holding the bit in the jaw member until the bit is locked in place. More recently, drill clamps have been developed into which a drill bit can be inserted and while the clamp is configured in a "clamp" mode, operation of the drill will e...

Claims

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Application Information

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IPC IPC(8): B23B45/16
Inventor 罗伯特·S·格雷特理查德·J·希维尔
Owner BLACK & DECKER INC
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