with initial reference to fig1 there is shown a flag pin comprised of a shaft 1 , a flag 2 attached to the upper end region of the shaft , and a divot repair device 3 . as will be readily appreciated by those skilled in the art , a golf course cup is typically characterized by an open cavity having a bottom wall in which there is defined a second cavity or center hole 5 of reduced cross section . to accommodate the object of the game , the open cavity of cup 4 is dimensioned to receive one or more golf balls which are directed there during play . a conventional flag pin therefore includes a ferrule secured to the base of the flag shaft and dimensioned and arranged to be inserted into center hole 5 to anchor the flag pin relative thereto . in accordance with a preferred embodiment of the present invention , however , the repair device 3 replaces the standard ferrule and therefore is similarly dimensioned and arranged to accommodate insertion into the lower cavity of the cup . in fig1 the flag pin and repair tool assembly of the present invention are depicted in a removed position . as indicated above , the assembly may be moved into an installed position within the cup by positioning the repair tool 3 in center hole 5 . with reference now to fig2 there is shown the internal construction of repair device 3 . as seen in fig2 the device 3 comprises a cylindrical housing 14 dimensioned to permit insertion into the center hole of a cup , as indicated above . within housing 14 , there is disposed a plunger member rigidly attached or otherwise secured to the base of shaft 1 . it should be noted that any suitable means may be utilized to connect plunger member 6 to shaft 1 . thus , for example , a threaded connection , an interference fit , or an adhesive material might be employed to secure the plunger to the base of shaft 1 . to facilitate the retrofit of an existing flag pole from which the ferrule has been removed , housing 14 may be configured as a two piece construction in which an apertured upper housing section is slid onto shaft 1 while the plunger member 6 is attached . to facilitate sliding movement of plunger 6 within housing 14 , the upper region thereof is equipped with a neck section 17 which is slidably fitted to the shaft 1 . the cylindrical sleeve of the illustrative embodiment depicted in fig2 is also provided with at least one grip tooth 16 along it &# 39 ; s bottom edge . in any event , as seen in fig2 plunger 6 rests on the upper surface 8 of an axial bearing 7 . a rotor shaft 10 , which is affixed at its upper end to the inner rotatable member 9 of bearing 7 , is equipped with a spiral groove 11 . rotor shaft 10 is constrained from other than rotational movement by an internally threaded stator disk 12 fixed within the interior of housing 14 . for this purpose , the internal threading 13 of stator disk 12 is dimensioned and arranged to mate with spiral groove 11 . a rotor blade 15 is affixed to the lower end of rotor shaft 10 and is adapted to rotate therewith , in a manner to be described below . operation of the repair tool of the present invention to repair a divot will now be described with simultaneous reference to fig1 and 2 . initially , it is necessary to remove the flag pin assembly from the center hole 5 of cup 4 . a user standing in an upright position may then grip said shaft 1 with one or two hands so that the repair tool 3 is located over a divot . with a plunging motion , the user will impact said flag pin assembly into the divot such that repair tool 3 encounters the divot squarely . when the lower peripheral edge of cylindrical housing 14 engages the turf , grip tooth 16 prevents rotational motion of the housing 14 . as the user continues to apply pressure in a downward direction along the longitudinal axis of the shaft 1 , the shaft is caused to slide within the neck 17 of housing 14 . as a result , plunger 6 is caused to slide in the same direction within the housing , which in turn places downward pressure on bearing 7 . the downward pressure of bearing 7 causes rotating member 9 and rotor shaft 10 to move downward as they rotate , with rotor shaft 10 being forced downward along its longitudinal axis and groove 11 being forced to encounter thread 13 of stator disk 12 . as indicated above , rotor blade 15 is affixed to the lower end of rotor shaft 10 . as such , upon rotation and downward movement of rotor shaft 10 , blade 15 translates downwardly as it rotates therewith . continued downward translation of and rotation of blade 15 causes the same to encounter and penetrate the turf in the divot area surrounded by housing 14 . as will be readily appreciated by those skilled in the art , penetration and working of the divot area by blade 15 and will have the effect of loosening the turf and soil underlying the divot area . a coil spring 18 is located around rotor shaft 10 and is held in a compressed state between the bearing 7 and stator disk 12 . spring 18 provides an upward bias which urges the rotor shaft 10 and all adjoining components upwardly and returns the same to the initial position depicted in fig2 upon relief of the pressure applied by the user . those skilled in the art will know that certain modifications to the preferred embodiment described above could be incorporated without changing the spirit of the invention . for example , in accordance with alternate embodiment of the present invention , the divot repair tool attached to the bottom of a flag pin is configured as a rigid member which has incorporated two pronged members extending in the direction of the longitudinal axis of the flag pin for the purpose of penetrating and lifting turf surfaces . in order to effect a divot repair the user would remove the flag stick from the cup and , from an upright standing position , grasping the shaft of the flag pin , cause the prongs of the attached repair tool to penetrate the perimeter of the divot . a rocking motion of the shaft of the flag pin would then cause the turf and the underlying soil of the divot to be loosened . in accordance with yet another embodiment of the present invention , the repair device , which is also attached to the bottom of the shaft of the flag pin , is configured as a flat blade which extends below a standard ferrule . the repair device constructed in accordance with this embodiment utilizes a blade provided with a plurality of small rigid bristles which extend from the blade in an upward and outward direction . if forced in an upward direction , each bristle will be easily bent to lay in direction parallel to the blade . if forced in a downward direction , however , each bristle will bend to a position no further than perpendicular to the blade . in order to effect a repair , the user will employ a plunging motion from an upright position , in a manner described in the first embodiment , directing the repair tool into the center of the divot . the repair tool is then upwardly removed , thus engaging said bristles into the turf and underlying soil and causing same to be lifted and loosened . in view of the foregoing , it will be readily appreciated that the invention is not limited by the embodiments described above which are presented as examples only but can be modified in various ways within the scope of protection defined by the appended patent claims .
a divot repair tool is permanently affixed to the bottom of a flag pin and replaces a standard ferrule . a plunging motion is employed by a user of the divot repair tool . from a standing position , the user grasps the shaft of the flag pin and directs it downward thus causing the divot repair tool to contact the turf in the area of the divot . an outer cylindrical sleeve first contacts the turf and is followed by a blade which is rotated and thrust downward by an internal mechanism . the action of the divot repair tool causes the turf and under lying soil of the divot area to be loosened thus promoting the recovery of the divot area .