Abstract:
A hand toll equipped with an illuminator has a conductive assembly settled within the handle to provide power to a lamp assembly which can lighten the operating end of the hand tool. A user can push a switch back and forth to operate the conductive assembly and in turn switch on/off the illuminator.

Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention relates to hand tools and, more particularly, to an open end wrench equipped with an illuminator. 
   2. Description of Related Art 
   Operating a hand tool and an illuminator simultaneously would be an inconvenience to a worker who assembles and/or disassembles detachable components in a dark working environment by using a conventional wrench product. Generally, a worker holds a wrench in one hand and a light source in another hand. He may settle the light source properly and then work with both hands, however, once the working environments or angles vary, he may have to drop the tool to adjust the lighting. Such a repeated reciprocating action may cause waste of time as well as energy. 
   SUMMARY OF THE INVENTION 
   The present invention disclosed herein provides a hand tool equipped with an illuminator as a solution to foresaid inconvenience. As an illuminator is attached to a hand tool at the operating end thereof, the light source is capable of acting right around the operating area and facilitates operating the tool in dark. 
   To achieve these and other objects of the present invention, the hand tool equipped with a illuminator comprises: 
   a hand tool including a handle associated with an operating end; 
   a lamp bracket fixedly attached to said handle at a predetermined position and containing a accommodating space inside; 
   a pathway running through the handle to the operating end and a pinhole disposed on the side wall of the lamp bracket for connecting said pathway with the lamp bracket; 
   a conductive assembly disposed inside the accommodating space of said lamp bracket comprising a first conductive strip, a second strip and at least one battery connected to said first and second conductive strips at its anode and cathode respectively, wherein the first conductive strip and the at least one battery are immovably positioned in said accommodating space; 
   a lamp arranged within said pathway including a bulb and two terminal pins, wherein the bulb comes into close proximity with the operating end of the hand tool while the two terminal pins properly extend into said accommodating space of lamp bracket by way of said pathway and pinhole; wherein one of the terminal pins is adjacent and electrically connected to the first conductive strip and the other is adjoining the second conductive strip; and 
   a cap for the lamp bracket fitting the opening of said accommodating space; a switch mounted on said cap; a fixing component disposed on the reverse side of the switch extending through the opening to attach to the second conductive strip of the conductive assembly; wherein the length of the opening may be greater than the length of the fixing component. 
   The technical measure taken by the invention to achieve foregoing purpose and effect is to provide controllable illumination at the operating end of a hand tool. When the lamp is switched on, the light source illuminates the working area and facilitates assembling operation in dark. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The invention as well as a preferred mode of use, further objectives and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying drawings, wherein: 
       FIG. 1  is an exploded view of a hand tool with an illuminator according to the present invention; 
       FIG. 2  is a perspective view showing the lamp switched off; 
       FIG. 3  is a perspective view showing the lamp switched on; 
       FIG. 4  is a sectional view taken along line  4 — 4  of  FIG. 2 ; 
       FIG. 5  is a sectional view taken along line  5 — 5  of  FIG. 3 ; and 
       FIG. 6  is a sectional view taken along line  6 — 6  of  FIG. 2 . 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
   Referring to  FIGS. 1 and 2 , a hand tool equipped with an illuminator according to the present invention comprises following components; 
   A hand tool  10  includes a handle  12  associated with an operating end  11 . In one embodiment of the present invention, the hand tool  10  is an open-end wrench. 
   An accommodating recess  13  is formed in the handle  12  and a pathway  14  is running through said recess  13  to the operating end  11 . 
   A lamp bracket  20  stuffed into said accommodating recess  13  has an upward-opened accommodating space  21 . The lamp bracket  20  and accommodating recess  13  each provides either a rabbet  15  or a tenon  22  for mutual coupling. 
   A conductive assembly  30  disposed inside the accommodating space  21  of said lamp bracket  20  comprises a first conductive strip  31 , a second strip  32  and at least one battery  33  connected to said first and second conductive strips  31 , 32  at its anode and cathode respectively. Further, the first conductive strip  31  and the at least one battery  33  are immovably positioned in said accommodating space  21  while the second strip  32  is movably connected with the battery  33 . Further, the second strip  32  is moveable along the longitudinal axis of the lamp bracket  20 . 
   A lamp  40  which includes a bulb  41  and two terminal pins  42 ,  43  is fixed within the pathway  14  of said handle  12  and the bulb comes into close proximity with the operating end of the hand tool while the two terminal pins properly extend into said accommodating space  21  through said pathway  14  and the pinhole  23  on the wall of the lamp bracket  20 . One of the terminal pin  42  is electrically connected with the first conductive strip  31  by way of a conductive component  35  and the other terminal pin  43  is associated with the second conductive strip  32 . 
   A lamp base  44  received by a recess groove  24  on the wall of accommodating space  21  provides two through hole  45 ,  46  to hold and isolate the two terminal pins  42 ,  43 . 
   A cap  50  has a depressed containing recess  51  which tightly fits the opening of said lamp bracket  20 . Further, the cap  50  and lamp bracket  20  are fastened by means of a snap-lock device that comprises a female portion  25  on the lamp bracket  20  and a mating male portion  52  arranged on the cap  50 . 
   A switch  60  mounted in and properly projects from said containing recess  51 . The switch  60  further has a fixing component  61  on the bottom surface that connects with the second conductive strip  32  through an opening  53  at the bottom of the containing recess  51 . Note that the length of the accommodating recess  51  (L 1 ) is greater than the length of the switch  60  (L 2 ) and the length of the opening  53  (L 3 ) is greater than the length of the fixing component  61  (L 4 ). Thereby, the switch  60  can move forth and back inside the containing recess  51  under a user&#39;s operation. Moreover, the second conductive strip  32  provides a fixing slot  34  matching the fixing component  61  and retaining a pair of wings  62  form at each side of the fixing component  61  by the bottom circumference thereof (as shown in  FIG. 6 ). 
   As shown in  FIGS. 3 and 5 , when the switch  60  is pushed towards the operating end of the hand tool, it moves inside the containing recess  51  of the cap  50  and simultaneously the fixing component  61  drives the second conductive strip  32  to approach and contact the terminal pin  43  of the lamp  40 . Whereupon, an electric circuit between the conductive assembly  30  and the lamp  40  is established to light up the bulb  41  of the lamp  40 . As a result, the illuminator acts at the operating end  11  of the hand tool  10  to brighten the working area and therefore facilitates the operating end  11  of the hand tool  10  to accurately retain the components to be assembled and/or disassembled. 
   Referring to  FIGS. 4 and 6 , when the switch  60  is pushed reversely, the fixing component  61  drives the second conductive strip  32  to leave and disconnect from the terminal pin  43  of the lamp  40 . Whereupon, the power source to lamp  40  is therefore shut and the bulb  41  is switches off in turn. 
   Although a particular embodiment of the invention has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.