FIELD OF THE INVENTIONThe present invention relates to a golf target which is in the form of a practice green to be hit at by golfer's in driving range facilities and the like.[0001]
BACKGROUND OF THE INVENTIONGolf is becoming an extremely popular game. Driving ranges are being built everywhere around the world to accommodate people who want to practice their golf ball hitting skills. Most up to date driving ranges include simulated greens at which people hit to determine their shot accuracy.[0002]
A conventional target green found at driving ranges, golf courses, or even larger property private homes is not provided with anything in the way of an indicator to tell a person if the green has been hit by a shot or what location of the green has been hit by a shot. People have to rely upon their eyesight to make these determinations. A person's ability to see where the shot has landed can be adversely affected by many factors including the distance separating the person from the green, overly bright or unduly dim lighting conditions which often occur during regular daylight hours and, most importantly, dark lighting conditions found in evening or night hours. In this regard, many driving ranges do have night lighting in the tee-off area but not in the ball landing area. Accordingly, people using driving range facilities in the evening and night hours when driving ranges are often busy are not able to see where their shots land.[0003]
In the past there have been some attempts made to overcome the problems noted above. For example, U.S. Pat. No. 5,980,392 describes a golf ball practice green which has lights that are illuminated by golf ball impact with the practice green. The practice green of the '392 patent, if functioning properly, therefore enables a person hitting a shot at the green to see whether or not the ball has landed on the green.[0004]
There are however deficiencies and problems associated with the structure of U.S. Pat. No. 5,980,392. For example, even though the structure when it is properly functioning does give feedback that it has been hit does not provide any type of indication as to where the ball has landed on the practice green. Therefore if the practice green is of substantial size, as it should be for driving range use, a person hitting the green still does not know how accurate his/her shot has been relative to a specific location on the green. Therefore if the person was aiming at a specific location the shot may have landed 10 feet from the location or it may have landed 50 feet from the location. There is simply no way of determining this when using the practice green of the '392 patent.[0005]
Another negative feature of the structure of the '392 patent is that it relies upon a constant supply of air to ensure its operation. This supply of air separates two surfaces which act as electrical contacts. The air therefore keeps the contacts open to prevent operation of the hit indicating light on the practice green. The impact of a ball with the practice green is sufficient to push the two surfaces together overcoming the air pressure normally holding the surfaces separated from one another. This operational design necessitates constant power to the practice green for maintaining the air supply and is subject to failure in the event that the power or air supply is somehow cut off or if air leaks develop in the system in which case the air pressure is no longer sufficient to produce separation of the two switch surfaces. Under any of these conditions the switch surfaces will automatically come in contact with one another and produce a constant illumination of the hit indicating lights.[0006]
SUMMARY OF THE PRESENT INVENTIONThe present invention provides a golf target e.g. a simulated golf practice green which has golf ball impact indicating features and which is extremely reliable in its operation.[0007]
According to an aspect of the invention the golf target further includes visual indicators which not only provide feedback that the target has been hit by a golf ball but additionally provides feedback as to where the golf ball has landed on the target.[0008]
More specifically, the golf target of the present invention has at least one light that lights up to indicate when the target is hit by a golf ball. The golf target includes a switch region comprising first and second metallic surfaces separated from one another by a mesh material and sandwiched between a support surface and an exposed ball receiving surface of the target. The target further includes first and second switch contacts for operating the light. These switch contacts are normally in an open condition in which the light is off. The first metallic surface is pressable through the mesh material onto the second metallic surface by golf ball impact with the golf ball receiving surface to move the switch contacts to a closed condition in which the light is turned on.[0009]
According to an aspect of the invention, the golf target includes a plurality of different colored lights and separate switch regions at different locations on the golf target. Each of the switch regions is associated with a specific one of the different colored lights. In this embodiment, a person hitting the green with a golf ball will know the landing location of the ball on the golf target according to which one of the lights is illuminated.[0010]
BRIEF DESCRIPTION OF THE DRAWINGSThe above as well as other advantages and features of the present invention will be described in greater detail according to the preferred embodiments of the present invention in which;[0011]
FIG. 1 is a perspective view of a golf target practice green according to a preferred embodiment of the present invention;[0012]
FIG. 2 is a perspective view of the base of the frame of the golf target practice green of FIG. 1;[0013]
FIG. 3 is perspective view of the full frame construction including both base and the upper structure parts of the frame of the golf target practice green of FIG. 1;[0014]
FIG. 4 is a view similar to FIG. 3 additionally showing the covering construction added to part of the upper structure part of the frame;[0015]
FIG. 5 is a front view of the assembly of FIG. 4;[0016]
FIG. 6 is a side view of the assembly of FIG. 5;[0017]
FIG. 6[0018]ais an enlarged sectional view through the flag mounting cup from the assembly of FIGS. 5 and 6;
FIG. 7 is an enlarged sectional view showing the mounting of the external cover to the frame from the construction of FIGS. 4 and 5 of the drawings; and[0019]
FIG. 8 is sectional view through the cover of FIG. 7 showing the different layers of cover and further showing the positioning of light illuminating switch contacts in different regions of the cover.[0020]
DETAILED DESCRIPTION ACCORDING TO THE PREFERRED EMBODIMENTS OF THE PRESENT INVENTION IN WHICHFIG. 1 shows a golf ball target practice green generally indicated at[0021]1. This green comprises acover construction3 supported by anupper structure part5 of a support frame6. Theupper structure part5 of the support frame is secured by apivot attachment17 to abase part7 of the frame at the front of the frame. Extending upwardly from the rear of the frame is alight mounting post9 provided with a plurality of different colored lights11,Further lights19 are provided at the forward hingedconnection17 between the upper and lower parts of the frame.
FIG. 1 shows a golf ball hit at and in position to land on the target green. The location on the green where the ball lands will dictate which one of the various different lights is illuminated as to be described later in detail.[0022]
A feature of the invention which is apparent in FIG. 1 is that the[0023]cover construction3 is divided intodistinct cover regions3a,3b,3cand3d.These cover regions preferably have different exterior colors making it easier to visually see what area the ball landed on in comparison to for example, a solid color completely over the surface of the target green.
Further provided on the target green is a center positioned[0024]flag13 mounted in asupport cup15 which is consistent in size with a regulation putting cup.
In the embodiment shown[0025]flag13 is located centrally of the green but could obviously be located at any position on the green. Consistent with a normal golf situation people aiming at the green will attempt to either land or get their ball to roll as close as possible to the flag or even into the flag cup.
Before describing the light illuminating features of the present invention reference is had to FIGS. 2 through 6 of the drawings. These figures show in better detail how the frame is constructed. FIG. 2 shows that the[0026]frame base7 comprises anouter ring7amade from a rigid preferably light weight material such as light weight steel, aluminum or even a rigid plastic material. Theupright post9 connects to the rear ofring7a.Also provided to the rear ofring7aare a pair of heightadjustable struts21. The pivot mount17 to receive the upper frame structure is provided at the front ofring7a.Lights19 are mounted in thepivot mount17.
In use the[0027]lights19 as well as the lights11 will be preferably covered by metal screens which will allow clear visibility of the lights but which will not allow a golf ball to reach and damage the lights. In the alternative the lights may be recessed within the frame and covered by impact resistant lenses of different colors which provide the different light colorings.
FIG. 3 shows that the upper part of[0028]frame5 is formed from anouter ring5acorresponding in shape and size to thebase ring7a.However, theupper frame part5 further includes an interior lattice like construction formed byframe bars5b,5cand5dinteriorly offrame ring5a.
Once again ring[0029]5aas well as the frame bars5b,5cand5dall have a light weight rigid construction.
As will be appreciated from FIG. 3 the entire frame is relatively light in weight making it easily moveable to different positions on a driving range or any other location where the target green is used.[0030]
FIGS. 4 and 5 of the drawings show the addition of the two[0031]cover regions3aand3bto the upper part of the frame. In order to complete the green assembly thefurther cover regions3cand3dare then added to the construction to produce the overall assembly shown in FIG. 1 of the drawings.
FIG. 6 of the drawings shows that the[0032]upper frame part5 is adjustable to different angles relative to thebase part7 of the frame. The angle adjustment is provided by means of the heightadjustable struts21 at the back of the practice green and thepivot attachment17 between the upper and lower frame parts at the front of the practice green. This angle adjustment is useful dependent upon the distance the green is set from the tee-off area. For example, if the green is set at a substantial distance of for example 150 yards or more from the tee-off area the upper frame part is preferably set to a relatively steep angle making it easier to see where the ball impacts with the green. When the green is set at closer distances to the tee-off area the upper frame part is preferably set to a much shallower angle relative to the base part of the frame.
Regardless of the depth of the angle, the upper frame part is always angled downwardly forwardly towards the tee-off area. This ensures that balls hit onto the covering construction on the upper frame part will roll off of the target green. As such, a person hitting at the target will always be hitting onto a clean green surface making it much easier to determine whether or not it was his/her ball that actually hit the green.[0033]
As an added advantage, the slope of the green can be directed to a ball accumulation area making it much easier to collect the balls hit at the green from the driving range.[0034]
FIGS. 7 and 8 of the drawings show key features of the invention relating to the actual switch regions which provide operation of the lights of the target green.[0035]
The[0036]cover construction3 in the preferred embodiment as shown comprises anupper carpet material31 which gives the target a grass like appearance. The carpet material may for example be about one eighth inch in thickness.
Provided beneath[0037]carpet material31 is a layer of flexible andresilient material33. This is preferably a rubber material about one eighth inch in thickness.
Provided beneath[0038]layer33 is ametallic layer35 which is preferably extremely thin e.g., in the order of about one-one hundredths of an inch in thickness. This can be a metal foil attached directly to the undersurface ofrubber layer33 or it could be a layer of extremely thin spring steel either attached to or free fromrubber layer33 but covered by the rubber layer.
A[0039]similar metal layer39 is provided beneathmetal layer35. However, thefirst metal layer35 is separated from thesecond metal layer39 by means of a non metallic i.e., non currentconducting mesh material37. This mesh material which preferably has a plastic construction may for example be about a tenth of an inch in thickness to keep the twometal layers35 and39 normally separated from one another.
Provided beneath[0040]metal layer39 is a further flexible andresilient layer41.Layer41 is preferably consistent in material selection and thickness withlayer35.
The entire cover is then supported by a[0041]rigid support layer43 which may for example have a wooden construction and is preferably about three quarters of an inch in thickness.
FIG. 8 of the drawings shows that the cover construction further includes a plurality of[0042]switch contacts51,53,57,59,63 and65. Thecontacts53,59 and65 are mounted in the part of the cover construction above themesh layer37 and are wired into thefirst metal layer35. Thecontacts51,57 and63 are provided in the cover construction belowmesh37 and are wired into the secondmetallic layer39. With this arrangement the first group ofcontacts55,59 and65 are normally not in contact with i.e. are in an open condition relative to the second group ofcontacts51,57 and63.
As earlier described, the cover construction is divided into[0043]separate cover regions3athrough3d.Cover regions3a,3band3care shown in FIG. 8 of the drawings. Each of these cover regions is a separate switch region of the target green. In this regard there are actual breaks oropenings55 and61 shown in FIG. 8 provided in the second orlower metal layer39. Assuch switch contact51 is provided in a distinct switch region fromswitch contact57 which is provided in a distinct or separate switch region fromcontact63. Therefore coverregion3ais a first switch region which is wired to one of the lights11 and also wired to one of thelights19.Cover region3bis a second switch region which is wired to another one of the lights11 and another one of thelights19 whilecover region3cis still a further switch region wired to a different one of the lights11 and a different one of thelights19. As can be seen in the drawings there are four different switch regions and there are four different lights. Accordingly, each one of these switch regions is associated with a particular one of the lights.
When a golf ball is hit onto the target green it will cause activation of one of the lights. The particular light that is turned on depends upon which area of the green is hit by the ball. For example, if the ball lands on[0044]cover region3athe impact of the ball with that particular cover region forces thefirst metal layer35 to be pressed downwardly through themesh layer39 onto thesecond metal layer39 closing thecontacts53 and51 with one another incover region3a.This will produce a lighting of the particular light from group11 and fromgroup19 which is electrically connected to the twocontacts53 and51. However, because thelower metal layer39 is broken into separate or distinct non electrically connected regions the downward pushing on the upper metal layer by the golf ball will not produce electrical contact betweenswitch contact53 andswitch contact57 orswitch contact63. As such, only one of the lights from light group11 and only one of the lights fromgroup19 will be turned on.
In the actual tee-off area a guide or directory will be provided to show what light color is associated with a particular region of the target green. For example, one of the lights may produce a green lighting effect while another one of the lights produces a red lighting effect. The green light may be associated with a switch region which is for example, 30 to 40 feet from the center of the green i.e., the area where[0045]flag13 is located while the red light may for example, be associated with a switch region which is 20 to 30 feet from the center of the green. The directory will show that if the green light is activated the person hitting the ball has landed between 30 to 40 feet from the flag whereas if the red light is illuminated the directory will show that the person has landed between 20 and 30 feet from the flag. In this manner, the person hitting the balls will clearly know how accurate the shot has been.
According to another embodiment of the present invention the[0046]flag support cup15 is electrically wired to all of the lights on the target green. Therefore if the person is able to hit or roll the ball intocup15 all of the lights will light up simultaneously. FIG. 6aof the drawings shows that thecup15 funnels down to atube71 which feeds any ball hit into the cup back out to the ball collection region around the target green. A small sensor or switch73 is provided intube71 and as the ball passes this switch or sensor while it is rolling down the tube all of the lights are simultaneously turned on for a timed period.
Although various preferred embodiments of the present invention have been described in detail, it will be appreciated by those skilled in the art that variations may be made without departing from the spirit of the invention or the scope of the appended claims.[0047]