Modified Fastener and Insertion Tool
a technology of fasteners and insertion tools, which is applied in the direction of threaded fasteners, screws, osteosynthesis devices, etc., can solve the problems of screw easily tiling to an undesirable angle, screw holding power may be poor, and magnetized driving bits do not serve any useful purpos
Inactive Publication Date: 2013-05-23
CANIZARES JR EDUARDO ANTONIO +1
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- Summary
- Abstract
- Description
- Claims
- Application Information
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Benefits of technology
The patent describes an insertion tool that can securely hold a fastener in place during use. The tool has a sleeve with channels that can hold the fastener's posts. The sleeve can be rotated to easily engage the posts and secure the fastener to the tool. The technical effect of this design is to make the insertion process faster and easier, and to improve the stability and reliability of the fastening process.
Problems solved by technology
Even if the magnetic driving bit can initially hold the screw perpendicularly with respect to a work material, the driving bit may have poor holding power.
As a result, the screw can easily tilt to an undesirable angle when uneven force is applied on the head of the screw.
Moreover, when non-ferrous screws are used, the magnetized driving bit does not serve any useful purpose as the operator must manually hold the screw in place.
This latter described type of conventional screwdriver also suffers from a number of drawbacks.
For example, during use, a user may apply an excessive amount of force to a screwdriver to insert the screw into an object.
If the screwdriver does not properly hold the screw to the tip of the screwdriver during the insertion because the assembly at the tip secures the screw using only a weak force, the screw can disengage from the driver bit assembly and potentially harm the user and / or the object into which the screw is being driven.
Also, it is undesirable in certain applications such as surgery that the opening of a screw holder assembly at the tip of a conventional screwdriver must be widened to a larger diameter to release a screw head from a driving bit.
Method used
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Embodiment Construction
[0066]In accordance with one embodiment, a modified screw includes one or more, grooved channels on an outer surface or sidewall of the screw's head. A screwdriver device includes a tip that can be inserted into a cavity at the head of the screw to torque the modified screw. In one embodiment, the screwdriver includes a movable assembly such as a sleeve. The sleeve includes posts (e.g., protrusions, pins, fingers, etc.) protruding inward. Sliding of the sleeve along a shaft of the screwdriver device over the screw head requires that inward protruding posts in the sleeve be rotated and aligned with the grooves on the sidewall of the screw's head. Subsequent to aligning and sliding the sleeve along the shaft to engage the posts in the grooved channels, the user twists the sleeve to lock the posts in the grooved channels and secure the fastener's head to the tip of the screwdriver. To hold a fastener to the insertion tool, the sleeve can be spring-loaded to automatically pull the head ...
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Abstract
According to example configurations, a modified screw head includes one or more slots or grooved channels. A screwdriver device includes a tip that can be inserted into a cavity in the head of the screw to torque the modified screw into an object. The screwdriver device includes a sleeve. The sleeve slides along a shaft of the screwdriver. The sleeve includes inward protruding posts (e.g., pins, fingers, etc.). Sliding of the sleeve over the screw's head requires that inward protruding posts in the sleeve be aligned with the grooves on the sidewall of the screw's head. Subsequent to aligning and sliding the sleeve into the grooved channels of the screw's head, the user twists the sleeve to secure the screw head to the screwdriver's tip. The sleeve can be spring-loaded to pull the head of the screw toward a handle end of the screwdriver after a user releases the sleeve.
Description
RELATED APPLICATIONS[0001]This application is a continuation of earlier filed U.S. patent application Ser. No. 12 / 875,244 entitled “MODIFIED FASTENER AND INSERTION TOOL,” (Attorney Docket No. SNI10-05(3803)), filed on Sep. 3, 2010, the entire teachings of which are incorporated herein by this reference.BACKGROUND[0002]Conventional screw driving devices provide different ways of holding a screw in position while the screw is driven into a work material such as a wall, wood, bone, etc.[0003]For example, one type of conventional screwdriver includes a magnetized driving bit to hold a respective metal screw to the bit during installation. Even if the magnetic driving bit can initially hold the screw perpendicularly with respect to a work material, the driving bit may have poor holding power. As a result, the screw can easily tilt to an undesirable angle when uneven force is applied on the head of the screw. Moreover, when non-ferrous screws are used, the magnetized driving bit does not ...
Claims
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IPC IPC(8): F16B23/00B25B23/10B21K1/56
CPCA61B17/8615A61B17/862A61B17/888A61B17/8891B25B15/005Y10T29/49826F16B23/003F16B23/0061B21K1/56F16B23/0007B25B23/101F16B23/00A61B17/88B25B15/00B25B23/10A61B17/86
InventorCANIZARES, JR., EDUARDO ANTONIOSMITH, GRAHAM
OwnerCANIZARES JR EDUARDO ANTONIO