Patent Application
20110226098
The present application claims the benefit of Chinese Application 2010201376989 filed Mar. 19, 2010 and Chinese Application 201020137687.0 filed Mar. 19, 2010, which is incorporated herein by reference.
This disclosure pertains to drivers and more particularly to a driver having an ergonomic handle for storing interchangeable bits.
The variety of screwdriver bit sizes and types which are required for most purposes makes it practical and economical to utilize a screwdriver handle having interchangeable bits. Various designs are in use wherein a single screwdriver handle can be fitted with multiple interchangeable bits where such bits can be stored in the handle, thereby reducing the number and expense of screwdriver tools required to drive the various sizes and head configurations of screws. In the most common of these designs, the multiple bits are stored loosely in a hollow handle. To select a particular bit, an end cap on the handle is unscrewed, all the bits are removed from the handle, the desired bit is selected and secured in a chuck, the remaining bits are returned to the handle and the end cap is replaced.
While such prior handle shapes have functioned acceptably, they have generally been uncomfortable, particularly in cases of extended use.
An ergonomic handle for a rotatable device is provided. The handle has an underside, an opposed upperside and a peripheral wall extending therebetween. The upperside has a slightly convex shape providing an ergonomic grip adapted to be received in the palm of a users hand. A ratcheting mechanism is combined with the underside and centered on a center line extending through the handle, wherein the center line represents an axis of rotation for the ratcheting mechanism and. The handle has at least one chamber disposed within the handle body between the upperside and the underside with access to the chamber by a lid disposed on the peripheral wall. A portion of the peripheral wall adjacent to one side of the lid has substantially the same plan outline as the side of the lid, thereby forming a smooth transition between the peripheral wall and the lid.
In an embodiment, the driver has a removable extension member to extend the length of the ratcheting mechanism. The extension member storage receptacle is disposed in a smooth concave recess extending into the handle of the peripheral wall.
For a more complete understanding of particular embodiments and their features and advantages, reference is now made to the following description, taken in conjunction with the accompanying drawings, in which:
Referring to
Handle's 104 shape is designed for comfortable gripping by a user's hand. Viewed from the top, handle 104 is substantially triangular in shape with slightly convex sides and rounded angles with a smooth transition or non-angular transition between the respective convex sides. In an alternative embodiment, handle 104 can have a substantially round or polygonal shape with rounded angles, when viewed from the top. The top surface of both embodiments is slightly convex such that the shape of the top surface fits generally into the palm of the user's hand. Furthermore, the total area of an upperside 105 of handle 104 is greater than the combined area of body 102 and ratcheting mechanism 106.
Handle 104 is substantially hollow with one or more chambers 116 inside to provide a place for storing interchangeable bits (not shown) for driver 100. In a preferred embodiment, disposed within chamber 116 is a receptacle 118 for organizing the interchangeable bits and holding them in a stationary position. The inside of handle 104 can contain multiple chambers 116, with each chamber 116 distinct from the other chambers 116 to prevent objects inserted in one chamber 116 from moving about inside handle 104.
A hinged lid 112 covers the opening of each chamber 116. Lid 112 is uniform in shape to peripheral wall 107, and on the side of lid 112 having hinge 120, there's a smooth transition between the peripheral wall 107 and lid 112. In other words, the portion of the peripheral wall 107 adjacent to lid 112 on the side with hinge 120 has substantially the same plan outline forming a smooth transition between peripheral wall 107 and lid 112. On the opposite side of lid 112, a lip 121 is provided to assist the user in opening lid 112.
As previously stated, chambers 116 in handle 104 store interchangeable bits for driver 100. As illustrated in
Driver 100 is held and gripped in the palm of the user's hand. It also shorter than standard ratcheting screwdrivers measured from top of handle 104 to ratcheting head 108. This advantageously allows the user to provide more torque to a fastener than otherwise might be possible with the standard ratcheting screwdriver; however, some situations call for a longer driver. In such instances, driver 100 is provided with a removable extension member 110 that is combinable with ratcheting head 108 of ratcheting mechanism 102. Extension member 110 extends the overall length of driver 100.
When extension member 110 is not in use, handle 104 is provided with an inconspicuous storage area for the extension member 110, so that the extension member 110 is available and easily accessible upon demand. An extension member storage receptacle 114 is disposed in a smooth concave recess extending into handle 104 of peripheral wall 107.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it should be understood by those of ordinary skill in the art that various changes, substitutions and alterations can be made herein without departing from the scope of the invention as defined by appended claims and their equivalents. The invention can be better understood by reference to the following claims. For purpose of claim interpretation, the transitional phrases “including” and “having” are intended to be synonymous with the transitional phrase “comprising.”
| Number | Date | Country | Kind |
|---|---|---|---|
| 201020137687.0 | Mar 2010 | CN | national |
| 2010201376989 | Mar 2010 | CN | national |
