Patent Publication Number: US-9416929-B2

Title: Rotary head flashlight headlamp

Description:
This application claims the benefit and priority of U.S. Ser. No. 61/875,884 
    
    
     STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH 
     The invention was not made under government contract nor was funded grant money used to fund the research 
     FIELD 
     Portable Flashlight Headlamp 
     BACKGROUND 
     The present invention relates to flashlight headlamp with a rotary illuminating head. This particular device contains a head that rotates around the main shaft forming a right angle upon rotation while illuminating during rotation. The head of this particular device contains within a high power light emitting diode to be utilized in dark areas as an illumination device. 
     SUMMARY 
     The novelty of this invention, is having a flashlight headlamp with multiple angles of rotation with a high power light emitting diode to access difficult to see areas due to darkness or low light visibility. The rotating head have integral steps of rotation guides and stopper for a smooth transition between positions. The flashlight headlamp first position is when the rotary head is in-line with the main body at zero degree angle also called the shaft. During rotation of the rotating head, this particular tool provides several angles of rotation until reaching its complete and final position where the head becomes perpendicular to the shaft forming a ninety degree angle. Users can take advantage of the present invention by having a multi position flashlight. 
    
    
     
       DRAWINGS 
         FIG. 1  is a complete view of the present invention that shows the main parts of the invention composed of the rotary head, the main body and the power switch. 
         FIG. 2  is a perspective view of the internal construction and mechanical operation of the rotating head lamp. 
         FIG. 3  is an exploded view of the complete unit with details of the internal components. 
         FIG. 4  is an exemplary view of a hands free bracket that could be also utilize to support the flashlight tool during operation. 
         FIG. 5  is a complete view of the present invention that shows the angles of rotation of the flashlight headlamp around its own axis. 
     
    
    
     DETAILED DESCRIPTION 
     The present invention pertains to a new and improved flashlight headlamp with a ninety degree rotary head lamp also including associated powering controls. This particular device contains a head that rotates around the main shaft forming a right angle when turned. This device is also a complete light unit consisting of a high power light emitting diode used as the main lamp. The rotary head mechanism of the present invention forms a complete assembly when coupled to the main body shaft. 
       FIG. 1  is a complete view of the present invention showing the main parts that make up this flashlight headlamp. The first component is the rotary head  9 , which primary purpose is to provide illumination in addition to having an angle of rotation of ninety degree around the axis of the flash light headlamp  15 . This feature provides the end user multiple angles of illumination without having to change positions or moving position of the flashlight device, as shown on  FIG. 5 . As part of the main body, there is also an anti-slip feature called the knurl  11   a . The main body (shaft)  1  body contains a knurl  11   a  feature which surrounds the main body. This knurl  11   a  provides a secure and comfortable grip to the user when handling, preventing the tool from subsiding from the user&#39;s hand. The knurl feature is described in other prior arts and will not be elaborated further. The main body also has a secondary retention features refer on  FIG. 1  as retention groves  11   b  located at opposite ends of the main body (shaft)  1 . The purpose of these grooves  11   b  are to provide a hands-free operation while working. The preferred method of hands free operation is through a head band bracket as shown on  FIG. 4 . The external bracket allows the body to rotate freely within the body shaft retention grooves  11   b  and allows for pivoting of the external bracket itself. Additionally, this device is powered by internal user replaceable batteries and activated when the power switch  12  is closed. 
       FIG. 2  is an exploded view of the rotary head  9  features and components. The rotary head  9  consist of a high power light emitting diode  7  used as the main lamp for illumination. The light emitting diode lamp contains around its base a rubber washer  7   a . This particular washer provides a seal around the base of the lamp to prevent any light from escaping around that area. Once the lamp is powered, the light enters and exits the reflector  7   b  sending the light out through the front bezel and lens  7   d  to the outside world. The front bezel and lens  7   d  are mechanically couple to the rotary head  9  by a threading feature. Additional features are depicted in the rear area of the rotary head  9 . These features provide a coupling mechanism to the main body. First, the mating guide stud  5   c  located in the rear center of the rotary head  9 , main purpose is to mechanically align and couple the rotary head  9  with the main body (shaft)  1  as shown in  FIG. 1 . The mating stud  5   c  being plastic, protruding with a certain length, width and height is designed to fit inside the rotating guide  3  receptacle shown on  FIG. 3  item number  3 . Once the rotary head  9  is aligned and couple with the main body (shaft)  1 , the rotary functionality of the rotary head  9  is further expanded by the rotating guide  5   d  and the first position  5   a  feature and the second position  5   b  feature located in the rear adjacent to the mating guide  5   c . The rotating guide  5  is a feature with a certain depth and a certain groove width that accommodates the rotary stopper  4  on  FIG. 3 . The utility of the rotating guide  5  is to allow the rotary head  9  to rotate clockwise and counter clockwise on its on axis with a smooth transition between first position  5   a , and second position  5   b  until a full stop is encountered. The described invention achieves complete stops at zero degree and ninety degree angles when the rotary stopper  4   FIG. 3  collides with the wall of the rotating guide  5   d  at either first or second position. The next sections of this particular embodiment are composed of the mating head  2  and the shaft  1  as shown in  FIG. 3 , which in conjunction forms the main body in which encapsulates the electrical components of such invention. The shaft  1  has several utility features that collaborate with the invention. 
       FIG. 3  is an exploded view of the present invention showing all the major electrical and mechanical components that make up the tool. The rotary head  9  was initially described in  FIG. 1  and further elaborated on  FIG. 2 . Additionally, on  FIG. 3  the rotary head  9  will be described as a complete assembly part. The rotary head  9  is coupled to the main body (shaft  1 ) through the mating head  2 . There are several mechanical features on the mating head  2  that provide a secure press fit locking mechanism and also the rotating feature for this tool. There is a half circle track  8  that provides a smooth rotation for the rotary head  9 , in addition to providing the stopping  4  mechanism at each end. The main body (shaft)  1  includes a printed wiring board  10  that provides an electrical connection between the battery assembly  14  and the main lamp  7  located in the rotary head  9 . The printed wiring board  10  also contains a driving circuit that provides the appropriate voltage potential and current level to power the main led  7 . The energy source for this flashlight tool is provided by three user replaceable “AAA”  14   c  battery size that are inserted in the battery housing  14   b  and are inserted inside the cavity of the main body (shaft)  1 . The battery housing also contains a printed wiring board that provides an electrical connection between the main power switch  13  and the rest of the circuit. The power switch  13  is enclosed inside a metal cap with a threaded feature that serves as the securing and coupling mechanism between the switch  13  and the rest of the flashlight tool.