fig1 through 8 , wherein like parts are designated by like reference numerals throughout , illustrate example embodiments of an adaptable putter head 10 according to the present invention . although ) the present invention will be described with reference to the example embodiments illustrated in the figures , it should be understood that many alternative forms can embody the present invention . one of skill in the art will additionally appreciate different ways to after the parameters of the embodiments disclosed , such as the size , shape , or type of elements or materials , in a manner still in keeping with the spirit and scope of the present invention . referring to fig1 , a first exemplary embodiment of an adaptable putter head 10 according to the invention is shown . for succinctness , the adaptable putter head 10 will hereinafter be referred to as the putter head 10 . the putter head 10 comprises a center piece 20 and two wings 50 . the center piece 20 includes a sole 30 and a top 40 . the sole 30 rests adjacent the putting surface when the putter is in use . the top 40 is used to attach a putter shaft 60 ( not shown ) at the hosel 48 of the putter head 10 . the center piece 20 further includes a central face 22 for striking a golf ball . each wing 50 includes a planar wing face 52 . in fig1 , the putter head 10 is shown in a play mode , with the wings 50 in a forward , fully extended position . the wings 50 are rotatably attached to the center piece 20 via pin 23 . thus , the wings 50 may be rotated around the axis formed by the pin 23 to move the wings 50 into a retracted folded position , thereby placing the putter head 10 into a training mode . the center piece 20 and wings 50 can be formed of hard or rigid material , and material having a certain amount of resilience depending on the desired striking characteristics of the putter , including but not limited to plastic , rubber , composites , synthetic materials , natural materials , wood and the like . the putter head 10 may likewise be made from metal or composites , while still providing desired functionality to the golfer . the components of the putter head 10 may be machined or cast . one of skill in the art will appreciate that any number of different materials and manufacturing methods may be utilized , such that the present invention is by no means limited to those specifically listed herein . now referring to fig2 , a perspective view from the sole 30 of the adaptable putter head 10 is shown . the wings 50 are able to rotate from an extended position to a retracted folded position . the retracted folded position of the wings 50 is indicated by the wings 50 shown in dotted lines . as illustrated , the top 40 of the putter head 10 serves to hide the wings 50 when placed in a folded position . now referring to fig3 , a detailed exploded view of the adaptable putter head 10 is shown . the center piece 20 serves as an anchor piece for the wings 50 . the wings 50 are rotationally engaged with the center piece 20 by hinge pin 23 . the hinge pin 23 passes through a hole 34 in the sole 30 , a sleeve 54 of the wing 50 and a top hole 46 in the top 40 . each wing 50 includes a cylindrical distal receiver 58 into which cylindrical distal wing magnets 59 are affixed . when the putter head 10 is placed in a training mode with the wings 50 in a folded position , the wing magnets 59 come into contact and hold the wings 50 securely in the retracted folded position during use . each wing 50 further includes a proximal bolt hole 56 into which magnetic adjusting bolts 57 are threadably engaged . the sole 30 of the center piece 20 includes two cylindrical receptacles 36 into which cylindrical sole magnets 37 are affixed . the sole magnets 37 correspond with each magnetic bolt 57 of each wing 50 such that when the wings 50 are in a forward fully extended position , the wings 50 are secured in place by magnetic attraction between the sole magnets 37 and the magnetic adjusting bolts 57 of each wing 50 . in addition to providing magnetic attraction to maintain the wings 50 in an extended position , the magnetic adjusting bolts 57 are adjustable to ensure that the entire striking surface , i . e ., the entire face 12 of the putter , formed by the central face 22 and the wing faces 52 , is properly aligned to form a single planar surface from wing 50 to wing 50 . when the putter head 10 is in play mode with the wings 50 fully extended , the threadably engaged magnetic adjusting bolts 57 may be adjusted via rotation to eliminate any gaps at the interface between the central face 22 and the wing faces 52 and to ensure that the wing faces 52 are properly aligned with the central face 22 . this adjustment feature ensures that the putter head 10 does not strike erroneously when fully extended in a play position . in addition , the adjustment feature allows the putter head 10 to be tuned when first manufactured and throughout its playing life . for example , during repeated use , the sole magnets 37 or hinge pins 23 may wear , requiring adjustment of the magnetic adjusting bolts 57 to ensure the central face 22 and wing faces 52 are aligned . now referring to fig4 , a top plan view of the adaptable putter head 10 according to the invention is shown . the putter head 10 is shown in a play mode , with the wings 50 in an extended position . in play mode , both wing faces 52 are planar aligned with central face 22 of the putter head 10 forming an entire face 12 . pin 23 is shown inserted through top pin hole 46 . the top 40 includes a top surface 42 and a decorative opening 44 in the surface 42 of the top 40 . also shown in the top surface 42 is the hosel 48 through which a putter shaft 60 may be attached to the putter center piece 20 . the location of the hosel 48 is shown for exemplary purposes . the hosel 48 may be located elsewhere on the top surface 42 of the putter head 10 to provide variable performance and adapt to different types of putter shafts or player preferences for balance , among other performance parameters . now referring to fig5 , a rear elevation view of the adaptable putter head 10 according to the invention is shown . the putter head 10 is shown in a play mode , with the wings 50 in a fully extended position . magnetic adjusting bolts 57 are deployed within proximal receivers 56 . distal cylindrical magnets 59 are secured within cylindrical distal receivers 58 . now referring to fig6 , a top plan view of the adaptable putter head 10 in a folded state is shown . the putter head 10 is shown in a training mode , with the wings 50 in a retracted or folded position . the wing faces 52 align with the edges 43 of the top 40 of the putter head 10 . the remainder of each wing 50 is hidden by the top 40 . decorative opening 44 is also adaptable to receive a mating insert weight ( not shown ) which can be used to adjust the weight and moi of the putter to suit a player &# 39 ; s preference or to easily test various swing weights and moi . now referring to fig7 , a rear elevation view of the adaptable putter head 10 according to the invention is shown . the putter head 10 is shown in a training mode , with the wings 50 in a retracted position . the wing magnets 59 hold the wings 50 securely in the retracted folded position via magnetic attraction . now referring to fig8 , an illustration of the putter head 10 with wings 50 fully extended is shown . the putter head 10 is configured to receive a putter shaft 60 acceptable to the preferences of the golfer . a golf ball b is positioned adjacent the central face 22 . thus deployed , a golfer is now able to use the same putter for practice as for actual play . the present invention has been particularly shown and described with respect to certain preferred embodiments and features thereof . however , it should be readily apparent to those of ordinary skill in the art that various changes and modifications in form and detail may be made without departing from the spirit and scope of the inventions as set forth in the appended claims . the inventions illustratively disclosed herein may be practiced without any element which is not specifically disclosed herein .
an adaptable putter head that can be easily configured by a golfer for use in training or competitive play is described . the adaptable putter head comprises a center piece and two wings rotatably attached to the center piece . the center piece and wings include a central face and wing faces , respectively . in an extended position , the central face and wing faces form a continuous surface for striking a ball in competitive play . in a retracted position , the central face provides a striking surface with less surface area and the putter head has a lower moment of inertia for skill training and practice .