LIGHTED WEDGE TOOL

Abstract

A wedge tool includes an elongated body having a cavity disposed within its proximal portion, the body having two vertical sides intersecting two force-applying surfaces with a tapered, curved profile to define a blade at a distal end of the body. At least one a light emitter within the body emits light from the distal portion. A power source is disposed within the cavity for providing power to the light emitter.

Claims

1. A wedge tool, comprising: an elongated body having a cavity disposed within a proximal portion thereof, the body having two sides and two tapered, curved profile defining force-applying surfaces with a blade formed at a distal end of a distal portion of the body; at least one a light emitter configured to emit light from the distal portion; and a power source disposed within the cavity for providing power to the light emitter.

2. The wedge tool of claim 1, wherein the distal portion comprises a light diffusing material, wherein the at least one light emitter is disposed within the light diffusing material to emit light from surfaces of the light diffusing material.

3. The wedge tool of claim 1, wherein the at least one light emitter comprises an optical fiber extending through the distal portion of the body, wherein the optical fiber communicates light to an opening at the distal end.

4. The wedge tool of claim 3, further comprising a plurality of LEDs disposed within each side of the body.

5. The wedge tool of claim 1, wherein the at least one light emitter comprises a plurality of LEDs disposed within each side of the body.

6. The wedge tool of claim 1, wherein at least a portion of one of the force-applying surfaces has a plurality of transverse ribs formed therein.

7. The wedge tool of claim 1, wherein the at least one light emitter is formed from polymethylmethacrylate (PMMA), polycarbonate (PC) or similar translucent plastic or polymer.

8. The wedge tool of claim 1, wherein at least the proximal portion of the body is formed from acrylonitrile butadiene styrene (ABS) or similar thermoplastic polymer, or Nylon.

9. A wedge tool, comprising: an elongated body having a cavity disposed within a proximal portion thereof, the body comprising two vertical sides intersecting two force-applying surfaces having a tapered, curved profile defining with a blade formed at a distal end of a distal portion of the body; at least one a light emitter configured to emit light from the distal portion; and a power source disposed within the cavity for providing power to the light emitter.

10. The wedge tool of claim 9, wherein the distal portion comprises a light diffusing material, wherein the at least one light emitter is at least partially disposed within the light diffusing material to emit light from surfaces of the light diffusing material.

11. The wedge tool of claim 9, wherein the at least one light emitter comprises an optical fiber extending through the distal portion of the body to communicate light to a light transmissive window at the distal end.

12. The wedge tool of claim 11, further comprising a plurality of LEDs disposed within each side of the body.

13. The wedge tool of claim 9, wherein the at least one light emitter comprises a plurality of LEDs disposed within each side of the body.

14. The wedge tool of claim 9, wherein at least a portion of one of the force-applying surfaces has a plurality of transverse ribs formed therein.

15. The wedge tool of claim 9, wherein the at least one light emitter is formed from polymethylmethacrylate (PMMA), polycarbonate (PC) or similar translucent plastic or polymer.

16. The wedge tool of claim 9, wherein at least the proximal portion of the body is formed from acrylonitrile butadiene styrene (ABS) or similar thermoplastic polymer, or Nylon.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG. 1 is a perspective view of a first embodiment of a lighted wedge tool.

[0011] FIG. 2 is a perspective view of another embodiment of a lighted wedge tool.

[0012] FIG. 3 is a perspective view of still another embodiment of a lighted wedge tool with a ribbed surface and LEDs disposed along the sides of the wedge body.

[0013] FIG. 4 is a perspective view of another embodiment of a lighted wedge tool with a diffusing lens.

DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION

[0014] As shown in FIGS. 1-4, the inventive wedge light generally includes a tapered body that is at least partially hollow, a lens located near the narrow end of the body, and a light module that is fully or partially retained within the body. In most embodiments, the body has a wide curve or parabolic profile that extends the length of the body to facilitate handling and insertion.

[0015] Referring to FIG. 1, a first embodiment of the inventive wedge light 100 includes an elongated hollow body 103 with an interior cavity 101 dimensioned for receiving a battery-powered pen light 106 with a light-emitter 104, e.g., one or more LEDS, incandescent bulbs, halogen bulbs, or other light emitter, at one end and a switch 108 at its other end. Pen lights of this type are widely available commercially and may be powered by a common AA or AAA battery, or any of a variety of button cell batteries, including alkaline, lithium, silver oxide, etc. The cavity 101 may be openable via a door, slide, or plate, in a side or at the proximal end of the body that allows the entire pen light to be accessed, either for removal/insertion of the entire light, or for battery removal/replacement. The pen light may be permanently/semi-permanently retained within the interior cavity 101, or the cavity may be simply configured to temporarily retain a separate pen light that can be slid into and out of the cavity when needed. The switch 108, which may be a push-button latching switch, a toggle switch, slide switch, or other conventional on-off switch, is accessible on the outside of the distal end of the body 103. Where a separable pen light is used, the switch 108 may be the switch on the light itself rather than a dedicated switch attached to the end of the body. The body 103 may be formed from any of a number of rigid materials, including wood, metal, or hard plastics or polymers. In some embodiments, the material may be injection-molded or machined acrylonitrile butadiene styrene (ABS) or similar thermoplastic polymer, or Nylon, e.g., Nylon 6 or Nylon 66, similar polyamides, or other durable, non-compressible, high strength material. The body should be smooth, without sharp edges or protrusions that could scratch the window, wiper, or other surface.

[0016] Attached to the distal end of body 103 is a lens 102, which can be either co-molded or mechanically attached to the body 103 using fasteners, adhesive, or a combination thereof. The lens 102 tapers at its distal end down to a blade end 105, which has sufficient rigidity to initiate the separation between the two objects to be separated. The lens 102 continues the parabolic profile of the body, with a tight joint between the body and lens to provide a uniform surface for contacting the window and wiper. In the embodiment shown in FIG. 1, the lens 102 is formed from a material that is translucent or transparent for light transmission. In a preferred embodiment, the lens material acts as a diffuser, so that light from light-emitter 104 is diffused throughout the lens to be emitted from all surfaces of the lens. Lens 102 may be formed from polymethylmethacrylate (PMMA) or polycarbonate (PC), or similar light-transmissive hard plastic or polymer.

[0017] An alternative embodiment of the wedge light 200 is shown in FIG. 2. The body 203 formed a continuous wedge from the proximal end, where switch 208 is located, to the distal blade end. A window or small opening 204 in the blade end provides support for the end of an optical fiber 205 that is connected at its other end to a light emitter of light source 206, so that light is transmitted from the light source through the fiber and projected from the window 204. The end of the fiber 205 may be flat or may be formed as a convex lens to expand the beam of the projected light. The fiber end may be at least partially recessed within the window to protect against damage during use. Optionally, wedge light 200 may also include separate light emitters 208 on either side of the body, where the emitter 208 is recessed within, or at least flush with, the side surfaces of the body to protect against damage. Emitters 208 may be an LED module connected by a wire 207 to LED driver circuitry and a battery within light source 206, or may be connected via an additional optical fiber to the light emitter of light source 206. Optional lens may be provided for the side emitters 208 to expand the beam of projected light.

[0018] A third embodiment of the inventive wedge light 300 is shown in FIG. 3. In this embodiment, body 303 has a partially ribbed upper surface 313 along a portion of its length. The ribbed surface facilitates handling of the tool. On each side of the body are disposed a plurality of light emitters arranged in a line running lengthwise. In FIG. 3, three LEDs 304 are shown, however more or fewer light emitters may be provided to project light from the sides of the body 303. The LEDs 304 are preferably flush or slight recessed from the outer surface of the body to reduce the risk of damage to the LEDs as the tool is inserted and retracted. Each light emitter 304 is connected via wiring 309 to LED driver circuitry on printed circuit board 311 which is connected to battery 312. As in the previously described embodiments, a switch 308 is provided to activate the light. Although not shown, the distal, blade end of wedge light body may include a lens and light emitter, also powered by the driver circuitry and battery.

[0019] FIG. 4 illustrates a variation on the embodiment of FIG. 1. As shown wedge light 400 includes a ribbed upper surface 413 on body 403, attached to a relatively elongated lens portion 402 formed from a translucent or transparent diffusing material that will emit light from all surfaces of the lens. As in the preceding embodiments, the light and power sources are retained within a cavity in body 403.

[0020] Exemplary dimensions for the inventive wedge light are on the order of 10-20 cm in length, about 0.75-2 cm in width, and 1.5 to 3 cm in depth. These dimensions are provided as an example only. It will be readily apparent to those in the art that different sizes of the wedge light may be designed for different applications. While in most embodiments, LEDs are described, it will be apparent to those in the art, that different or additional light sources may be employed for equal or enhanced utility. For example, different color LEDs may be used to facilitate visualization in certain situations. In another example, a low power laser pointer may be added to an LED or other light emitter to facilitate fine positioning at the work target.

[0021] Although several exemplary implementations of the invention have been described, it will be apparent to those skilled in the art that modifications and alternative embodiments of the invention may be made, including different combinations of features of the various exemplary embodiments. The foregoing disclosure contemplates all such modifications and alterations of the features, and is not intended to limit the scope of the invention or to preclude coverage of obvious modifications or equivalent embodiments. Accordingly, the scope of the invention is intended to be limited only by the following claims.