Screwdriver with force applying member
AssigneeIDEAL Industries, Inc.
InventorsDouglas A. Sanford, Michael Richard Weiby, Carl C. Aldag
Life of this patent
Estimating the term…
Abstract
A device for driving a fastener has a shaft and a driving portion formed on an end of the shaft. The driving portion is provided with one of a slot and a channel for securely holding a force applying member formed from a resilient material. When a tip of the driving member is positioned within a tip receiving portion tip portion of the fastener, a surface of the force applying member which faces towards the head of the fastener will frictionally engage with the head portion of the fastener to prevent the driving portion from slipping from the fastener.
Claims17
A device for driving a fastener, comprising:
- a handle;
- a shaft extending from the handle;
- a driving portion formed on an end of the shaft opposite the handle, the driving portion having a tip portion adapted to engage with a tip receiving portion of a head of the fastener and wherein the driving portion has a slot formed therein;
- and
- a force applying member formed from a resilient material securely engaged within the slot formed in the driving portion wherein the force applying member is arranged to leave a portion of the tip portion of the driving portion uncovered and wherein a surface of the force applying member which faces towards the tip portion of the driving portion is sized and arranged to form an interface for frictionally engaging with a surface of the head of the fastener that is located adjacent to the tip receiving portion of the head of the fastener when the tip portion of the driving portion is fully inserted into the tip receiving portion of the head of the fastener.
A tool for driving a fastener, comprising:
- a shaft;
- a driving portion formed on an end of the shaft, the driving portion having a tip portion adapted to engage with a tip receiving portion of a head of the fastener;
- and
- a force applying member comprising a first portion formed from a resilient material wherein the force applying member is arranged relative to the driving portion to leave a portion of the tip portion of the driving portion uncovered wherein a surface of the first portion of the force applying member which faces towards the tip portion of the driving portion is sized and arranged to form an interface for frictionally engaging with a surface of the head of the fastener that is located adjacent to the tip receiving portion of the head of the fastener when the tip portion of the driving portion is fully inserted into the tip receiving portion of the head of the fastener, and wherein the force applying member is provided with a feature that is cooperable with a corresponding feature provided to the driving portion or the shaft to inhibit axial displacement of the force applying member when the tip portion of the driving portion is fully inserted into the tip receiving portion of the head of the fastener.
Dependencies are inferred from the claim text.