Underground rake storage apparatus and method

Information

  • Patent Grant
  • 6405891
  • Patent Number
    6,405,891
  • Date Filed
    Monday, April 23, 2001
    23 years ago
  • Date Issued
    Tuesday, June 18, 2002
    22 years ago
Abstract
A rake storage device for storing a rake adjacent a sand trap of a golf course, and for selectively elevating the rake for use, includes an elongated container disposed underground in a substantially vertical orientation. The rake is removably received within the container. The device includes lifting means for elevating the rake out of the container and above the surface. The lifting means can include a rake receiver and a counter-weight operatively coupled together and movably disposed in the elongated container.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates generally to a method and apparatus for storing a rake adjacent a sand trap of a golf course, and for selectively elevating the rake for use.




2. Related Art




Golf courses are typically provided with hazards, such as sand traps which are disposed about the greens and fairways of the golf course. During play, golf balls are often shot into a sand trap. In order to continue play, the player must enter the sand trap and shoot the golf ball out. Playing the ball from the sand trap leaves footprints in the sand, and creates a divot from the swing. These disturbances in the sand trap, if left unattended, can affect the roll of the next ball hit into the sand trap. As a courtesy to other players and/or under the rules of the game, the player must leave the sand trap in its original or undisturbed condition. For this purpose, one or more rakes typically are provided at each sand trap. The player can use the rake to smooth the sand in the sand trap.




Leaving rakes along side or in the sand traps results in numerous disadvantages. One disadvantage of leaving rakes along side a sand trap is the potential that a golf ball will strike the rake, and thus interfere with the shot. In addition, rakes left along side the sand trap are esthetically displeasing. In addition, such rakes may present a safety hazard to players who might inadvertently step on, or trip over, the rake. In addition, golf carts may inadvertently run over and break the rake. Furthermore, maintenance of the course is made more difficult as workers must move the rakes as they mow the course, and/or tractor-rake the sand trap. Another disadvantage of leaving rakes about the sand trap is that such rakes tend to migrate to one end or location of the sand trap. In addition, sunlight tends to destroy the fiberglass handle of rakes that are left out.




Various devices have been developed in an attempt to solve the above-mentioned problems. For example, U.S. Pat. No. 3,584,739 issued to Erichson discloses a container buried in the ground adjacent the sand trap with a hinged cover having an artificial turf surface. When not in use, the rake is stored in a horizontal orientation in the container. As further examples, U.S. Pat. No. 4,934,550 issued to Cash, and U.S. Pat. No. 5,042,812 issued to Tillman, both disclose a container buried under the ground surface. One disadvantage with these types of underground containers is the difficulty and inconvenience of retrieving the rake from the underground container. For example, the player may have to bend over, squat, or kneel to withdraw the rake from the container. Alternatively, the player may have to fish the rake out of the container by hooking part of the rake with a golf club and carefully raising the rake to a position in which it may be grasped.




SUMMARY OF THE INVENTION




It has been recognized that it would be advantageous to develop a system or method for storing a rake adjacent a sand trap of a golf course in such a way as to minimize any interference of the rake with play, speed up play, increase the esthetic appearance of the course, improve the safety of the players, and increase the efficiency of course maintenance. In addition, it has been recognized that it would be advantageous to develop a system or method for more easily retrieving the rake for use, and returning for storage.




The invention provides an underground rake storage system to store a rake adjacent a sand trap of a golf course, and advantageously to selectively elevate the rake for use. Preferably, the system utilized a rake with a typical configuration, or having a handle with proximal and distal ends, and a head disposed on the distal end. The system includes an elongated container to removably receive the rake therein, and which is disposed underground in a substantially vertical orientation. The container can include a main tube to receive the handle of the rake, and a tray disposed on the main tube to receive the head of the rake.




A lifting mechanism advantageously is disposed in the container to vertically elevate the rake. The lifting mechanism preferably elevates the head of the rake to a convenient grasping elevation, such as greater than approximately two feet. In addition, the lifting mechanism preferably moves the rake between a storage elevation, and a graspable elevation. In the storage elevation, the rake is disposed underground, and within the container. In the graspable elevation, the head is disposed out of the container, and above the ground.




In accordance with a more detailed aspect of the present invention, the system includes a counter-weight system to elevate the rake. The counter-weight system includes a receiver to receive the rake, and a counter-weight to elevate the receiver and rake. The receiver and counter-weight are movably disposed in the elongated container. A pulley can be disposed within the elongated container with a cord movably engaging the pulley, and attached to the receiver and the counter-weight.




In accordance with another more detailed aspect of the present invention, the system may include a latching mechanism for selectively retaining the rake in the container, and/or selectively activating the lifting mechanism. A bi-stable mechanism can be used which is engagable by the rake, and movable between a secure position, and an open position. In the secure position, the mechanism retains the rake within the container. In the open position, the mechanism allows the rake to be removed from the container. A pivot member can be pivotally coupled to the container, and engagable by the rake. A spring element can be disposed in the container and engagable by the pivot member to bias the pivot member between two positions.




A method for using the underground rake storage device, or for substantially concealing and selectively providing the rake adjacent the sand trap of the golf course, includes providing the elongated container underground adjacent the sand trap of the golf course in a substantially vertical orientation. The rake is selectively disposed in the container such that the rake is disposed underground in a substantially vertical orientation. The rake is selectively elevated out of the container in a substantially vertical direction, and substantially along a longitudinal axis of the rake.




Additional features and advantages of the invention will be apparent from the detailed description which follows, taken in conjunction with the accompanying drawings, which together illustrate, by way of example, features of the invention.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a cross-sectional front view of a rake storage device or system in accordance with the present invention with a rake in a retracted or concealed position;





FIG. 2

is a cross-sectional front view of the rake storage device or system of

FIG. 1

with the rake shown in an elevated position;





FIG. 3

is a partial cross-sectional side view of the rake storage device or system of

FIG. 1

with the rake shown in the retracted or concealed position;





FIG. 4

is a partial cross-sectional side view of the rake storage device or system of

FIG. 1

with the rake shown in the elevated or extended position;





FIG. 5

is a side view of the rake storage device or system of

FIG. 1

with the rake shown in the elevated or extended position;





FIG. 6



a


is a partial cross-sectional side view of the rake storage device or system of

FIG. 1

with the rake in the retracted or concealed position;





FIG. 6



b


is a partial cross-sectional side view of the rake storage device or system of

FIG. 1

with the rake shown in the extended or elevated position;





FIG. 6



c


is a partial cross-section front view of the rake storage device or system of

FIG. 1

with the rake shown in the extended or elevated position;





FIG. 7

is a prospective view of the rake storage device or system of

FIG. 1

;





FIG. 8

is an exploded view of another rake storage device or system in accordance with the present invention;





FIG. 9

is an exploded view of another rake storage device or system in accordance with the present invention;





FIG. 10

is a perspective view of a bi-stable mechanism of the rake storage device of system of

FIG. 9

; and





FIG. 11

is an exploded view of the bi-stable mechanism of FIG.


10


.











DETAILED DESCRIPTION




For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the exemplary embodiments illustrated in the drawings, and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended. Any alterations and further modifications of the inventive features illustrated herein, and any additional applications of the principles of the invention as illustrated herein, which would occur to one skilled in the relevant art and having possession of this disclosure, are to be considered within the scope of the invention.




As illustrated in

FIGS. 1-4

, a rake storage system or device, indicated generally at


10


, is shown for storing a rake


14


adjacent a sand trap of a golf course. Preferably the system


10


is configured to store the rake


14


underground, or substantially under a surface


18


of the golf course. Golf courses and rakes are examples of fields that may benefit from the use of the rake storage system


10


. The rake


14


can have a typically configuration with an elongated handle


22


having a proximal end which is grasped by the user, and a head


26


formed on a distal end thereof for contacting and manipulating the sand. The rake


14


also has a longitudinal axis


30


, which generally is parallel and concentric with the handle


22


. The head


26


of the rake


14


can include a plurality of fingers along one edge, and a substantially continuous edge opposite the fingers, to rake the sand of the sand trap. It is of course understood that the rake


14


can have various different configurations.




The rake storage system or device


10


also includes an elongated container


34


configured to removably receive the rake


14


therein. The elongated container


34


is disposed underground, or under the surface


18


to conceal and/or position the container


34


and rake


14


. The container


34


includes an opening


38


through which the rake


14


passes into, and out of, the container


34


. The opening


38


preferably is located at the end or top of the elongated container


34


. The top of the container


34


or opening


38


preferably is located generally flush with the surface


18


. Thus, the rake


14


and container


34


are located underground to avoid interference with play, and improve aesthetics, while still remaining visible to facilitate locating the rake when needed.




Preferably the container


34


is configured to substantially match the shape or configuration of the rake


14


. The container


34


may include an elongated main tube


42


, and a trough or tray


46


disposed at the end of the main tube


42


. The main tube


42


is configured to receive the handle


22


of the rake


14


, while the tray


46


is configured to receive the head


26


. The opening


38


of the container


34


may be formed in the tray


46


.




The underground rake storage system or device


10


of the present invention advantageously includes a lifting mechanism to vertically elevate the rake


14


, or eject the rake


14


from the container


34


. Referring to

FIGS. 3 and 4

, the lifting mechanism advantageously can include a counter weight system


50


. A receiver or receiver tube


54


(

FIG. 2

) can be moveably disposed in the elongated container


34


or main tube


42


to receive the proximal end of the rake


14


therein. The receiver


42


can be operatively coupled to a counter weight


58


, which is also movably disposed in the elongated container


34


or main tube


42


. The counter weight


58


operates to elevate the receiver


54


(FIG.


2


), and thus the rake


14


. The receiver


54


(

FIG. 2

) and the counter weight


58


may be operatively coupled by a cord


62


. The cord


62


in turn may operatively engage a pulley


66


(best shown in

FIGS. 6



a


and


6




b


) disposed near the top of the elongated container


34


or at the top of the main tube


42


.




The receiver


54


and the counter weight


58


move or slide up and down within the main tube


42


. The cord and pulley


62


and


66


cause the receiver


54


and counter weight


58


to move in different directions, with the counter weight


58


moving in a downward direction as the receiver


54


moves in an upward direction, and vise versa.




The counter weight


58


preferably has a weight, which is greater than a combined weight of both the rake


14


and receiver


54


. Thus, the counter weight


58


tends to move in a downward direction under the force of gravity causing the receiver


54


with the rake


14


therein to move in an upward direction. Preferably, the counter weight


58


weighs only slightly more than both the rake


14


and receiver


54


to cause the receiver


54


and rake


14


to move upwardly in a slow, smooth motion. The slow motion or elevation of the rake


14


resists surprise or possible injury.




The lifting mechanism preferably is configured to elevate the rake


14


a significant distance to facilitate retrieval of the rake


14


from the container


34


. Preferably, the lifting mechanism elevates the head


26


of the rake


14


to a convenient, graspable elevation greater than approximately 2 feet, and more preferably greater than approximately 3 feet. It will be appreciated that the counter weight system


50


can be configured to elevate the rake


14


a desired distance, which is limited by the length of the cord


62


and the length of the counter weight


58


in the length of the main tube


42


. Thus, the length of the cord


62


and counter weight


58


can be selected such that the head


26


of the rake


14


is elevated to the desired elevation.




The lifting mechanism of the present invention provides a significant advantage over prior art rake storage systems in that the user is not required to bend over, kneel, or squat in order to retrieve the rake


14


from the container


34


. The lifting mechanism advantageously elevates the rake


14


to an elevation where the user may easily grasp the rake


14


, handle


22


or head


26


thereof




The lifting mechanism or counter weight system


50


moves or displaces the rake between a storage elevation, as shown in

FIGS. 1 and 3

, and a graspable elevation, as shown in

FIGS. 2

,


4


and


5


. In the storage elevation, the rake


14


is disposed under the surface


18


, and within the container


34


. At the graspable elevation, the head


26


of the rake


14


is disposed above the surface


18


, and out of the container


34


.




As stated above, the container


34


and rake


14


preferably are disposed in a vertical orientation. Therefore, the lifting mechanism or counter weight system


50


advantageously elevates the rake in a vertical direction, and along the longitudinal axis


30


of the rake


14


. Thus, the length of the rake


14


or the handle


22


itself is utilized in providing the rake


14


or head


26


thereof at a graspable elevation.




Although the container


34


and rake


14


are shown in a vertical orientation, it is of course understood that the rake


14


and container


34


can be disposed at a vertical incline, or at an angle with respect to the surface


18


. Such a configuration might be useful if the system


10


is disposed in an angled side of a sand trap or bunker.




An additional advantage of the counter weight system


50


is that the counter weight


58


and pulley


66


can be configured such that the rake


14


is slowly elevated out of the container. It will be appreciated that the counter weight system


50


causes the rake


14


to slowly elevate as the counter weight


58


slowly overcomes its inertia and builds momentum. The slow elevation of the rake


14


advantageously allows the user time to react and grasp the rake. In addition, such slow displacement resists surprises and/or injury.




The counter weight system


50


is one example of a lifting mechanism or a means for elevating the rake


14


. It is of course understood that other means for elevating the rake


14


may be used, including for example, an electric motor, hydraulics, a hydraulic actuator, a hydraulic motor, pneumatics, a pneumatic actuator, a pneumatic motor, a spring or other stored energy force, etc.




Referring again to

FIG. 2

, a guide tube


70


or guide track may be disposed in the main tube


42


. The receiver or receiver tube


54


can be slideably disposed in the guide tube


70


. The guide tube


70


prevents the receiver


54


and counter weight


58


from interfering with one another as they move.




The underground rake storage system or device


10


also advantageously includes a latching mechanism to selectively or releasably secure the rake


14


in the container


34


. The latching mechanism operates to prevent the lifting mechanism or counter weight system


50


from elevating the rake


14


out of the container


34


until desired. The latching mechanism may engage the rake


14


to prevent the rake from exiting the container


34


, or may engage the lifting mechanism or counter weight system


50


to prevent the lifting mechanism or counter weight system


50


from operating.




Referring to

FIGS. 6



a


through


6




c


, a bi-stable mechanism


80


is shown disposed in the tray


46


for engaging the rake


14


. The bi-stable mechanism


80


preferably has only two stable positions, and thus tends to move to either of the two stable positions. The two stable positions of the bi-stable mechanism


80


preferably correspond to a secure position, as shown in

FIG. 6



a


, and an open position as shown in

FIG. 6



b


. In the secure position, the mechanism


80


operates to retain the rake


14


within the container


34


. In the open position, the mechanism


80


allows the rake


14


to be removed from the container


34


, or allows the lifting mechanism to elevate the rake


14


.




The bi-stable mechanism can include a pivot member


84


pivotally coupled to the container


34


or tray


46


. The pivot member


84


can include an engagement portion or arm


88


, which is pivotal into the path of travel of the rake


14


, and engagable by the rake


14


or head


26


, as shown in

FIG. 6



b


. The engagement portion


88


may be forked to receive the handle


22


of the rake


14


therebetween, as shown in

FIG. 6



c


. The pivot member


84


also includes a bias portion or arm


92


, which engages a spring element


96


. The bias portion


92


engages the spring element


96


as the pivot member


84


pivots. The spring element


96


may be a leaf spring attached to the container


34


or tray


46


. The bias portion


92


of the pivot member


84


causes the spring element


96


to bend or deflect, as shown in dashed lines, as the bias portion


92


tracks along the spring element


96


. Thus, the spring element


96


tends to force the pivot member


84


towards either of the two positions, and provides resistance to movement of the pivot member


84


out of either of the two positions.




In use, placing the rake


14


in the container


34


causes the head


26


to contact the engaging portion


88


of the pivot member


84


, causing the pivot member


84


to pivot towards the closed position. Pivoting the pivot member


84


in the opposite direction allows the rake


14


to be withdrawn.




The bi-stable mechanism


80


is one example of a latching mechanism or retaining means for selectively and/or positively retaining the rake


14


within the container


34


, and/or for selectively activating the lifting mechanism. It is of course understood that other retaining means for selectively retaining the rake


14


in the container


34


can be used, including for example, a pressure release catch, magnetic latch, a two-way latch, etc. As stated above, the latching mechanism may be configured to engage the rake


14


itself, or can be configured to engage the lifting mechanism or counter weight system


50


. For example, a pressure release catch or magnetic latch may be disposed in the bottom of the container


34


or main tube


42


to engage and releasably secure the receiver


54


, and thus selectively prevent movement of the counter weight.




A lid


110


may be pivotally attached to the container


34


or tray


46


. The lid


110


may be sized and configured to wholly or partially cover the opening


38


of the tray


46


or container


34


. Preferably, the lid


110


extends over at least the main tube


42


to resist water and debris from entering the main tube


42


. The lid


110


may be secured to the pivot member


84


in order to operate in conjunction with the latching mechanism. Thus, the lid


110


is disposed over the rake


14


in the closed position to prevent withdrawal of the rake


14


from the container


34


, or to prevent the lifting mechanism from elevating the rake


14


.




The lid


110


has an upper surface that preferably is sized to have indicia thereon. The indicia can include information and/or advertising, including for example, the distance to the hole or green, the name of the course, the name or logo of a sponsor or advertiser, etc.




Referring to

FIG. 6



c


the tray


46


may be configured with a bottom wall which tapers downwardly away from the center of the tray


46


, and thus away from the opening in the main tube


42


, to prevent water and debris from being directed into the main tube


42


.




Referring to

FIG. 8

, another underground rake storage device, indicated generally at


150


is shown which is similar in many respects to the device described above. The device


150


includes a two-way latch or pressure release latch


154


, which is disposed in the bottom of the main tube


42


or in the bottom of the guide tube


70


. The two-way latch or pressure release latch


154


is engaged by the receiver


54


. Such catches or latches respond to unidirectional pressure to both engage and disengage. Thus, forcing the receiver


54


against the latch causes the latch to operate to engage the receiver, while again forcing the receiver


54


against the latch causes the latch to operate to disengage the receiver.




In use, the proximal end of the rake


14


can be inserted into the receiver


54


and pushed into the container


34


. When the rake


14


is received within the container


34


, the receiver


54


engages the two-way latch or pressure release latch


154


maintaining the rake


14


in the container


34


.




When it is desired to remove the rake, a downward force or pressure on the rake


14


presses or forces the receiver


54


against the two-way latch or pressure release latch


154


causing it to release the receiver


54


so that the lifting mechanism or counter weight system


50


can elevate the rake


14


.




In addition, the counter weight


58


can have a crescent shaped cross-section. Thus, the counter weight


58


can have an outer concaved surface shaped to match the main tube


42


, and an inner convex surface configured to match the guide tube


70


. Thus, the counter weight


58


is shaped to maximize the lateral space in the main tube


42


, thus reducing its length and maximizing lift.




Referring to

FIG. 9

, another underground rake storage device, indicated generally at


170


is shown which is similar in many respects to the devices described above. The device


170


includes a bi-stable mechanism


174


that has a similar operation, but different structural configuration, to the bi-stable mechanism


80


described above. The bi-stable mechanism


170


preferably has only two stable positions, and thus tends to move to either of the two stable positions. The two stable positions of the bi-stable mechanism


170


preferably correspond to a secure position, and an open position. In the secure position, the mechanism


170


operates to retain the rake


14


within the container


34


. In the open position, the mechanism


170


allows the rake


14


to be removed from the container


34


, or allows the lifting mechanism to elevate the rake


14


.




The bi-stable mechanism


170


is disposed in the tray


46


, and can include portions of the lid


110


. As described above, the bi-stable mechanism


170


can include a pivot member


84


pivotally coupled to the container


34


or tray


46


. The pivot member


84


can include an engagement portion or arm


88


, which is pivotal into the path of travel of the rake


14


, and engagable by the rake


14


or head


26


. The engagement portion


88


may be forked to receive the handle


22


of the rake


14


therebetween. The pivot member


84


also includes a bias portion or arm


92


, which engages a biasing mechanism


178


.




Referring to

FIGS. 10 and 11

, the biasing mechanism


178


can include a compression spring or coil spring


182


. The spring


182


can be contained in a housing


184


to protect the spring


182


, maintain the linear compression and expansion of the spring, and provide attachment of the spring. The housing can include first and second portions


186


and


188


which slide or move with respect to each other as the spring is compressed and expanded. The first portion


186


can be pivotally attached to the biasing portion or arm


92


of the pivot member


84


, while the second portion can be pivotally attached to the container


34


or tray


46


. The bias portion


92


of the pivot member


84


causes the spring


182


to compress as the pivoting member


84


pivots. Thus, the spring


182


or biasing mechanism


178


tends to force the pivot member


84


towards either of the two positions, and provides resistance to movement of the pivot member


84


out of either of the two positions.




The bi-stable mechanism


170


is another example of a latching mechanism or retaining means for selectively and/or positively retaining the rake


14


within the container


34


, and/or for selectively activating the lifting mechanism.




A method for using the systems or devices described above, and for substantially concealing and selectively providing the rake


14


adjacent the sand trap of the golf course, includes disposing the elongated container


34


underground, or under the surface


18


, adjacent the sand trap of the golf course. As stated above, the elongated container


34


preferably is vertically oriented, but may also be vertically inclined.




In addition, the rake


14


is selectively disposed in the container


34


, and thus the rake


14


also is disposed underground or under the surface


18


. Similarly, the rake


14


preferably is vertically oriented underground within the container, but may be vertically inclined.




The rake


14


may be disposed in the container


34


by inserting the handle


22


of the rake


14


through the opening


38


of the container


34


. The rake


14


is preferably inserted with the handle


22


first. The rake


14


may continue to be inserted to the container


34


until the handle


22


is substantially received in the main tube


42


, while the head of the rake


14


is received within the tray


46


.




In addition, the rake


14


may be inserted in the container


34


by placing the proximal end of the handle


22


into the receiver or receiver tube


54


. It will be appreciated that prior to receiving the rake


14


, the receiver or receiver tube


54


will be located near the upper end of the container or main tube


42


. For example, the counter weight


58


, which weighs more than the receiver or receiver tube


54


, will cause the counter weight


58


to move towards the bottom of the container


34


or main tube


42


, thus lifting the receiver or receiver tube


54


near the top.




Due to the lifting mechanism, such as the counter weight system


50


, it may be necessary to exert a downward force on the rake


14


in order to insert the rake


14


into the container


34


. Therefore, the rake


14


advantageously is prevented from merely dropping into the container, thus resisting damage. The users may exert a force on the rake


14


using their hands initially, and then complete the act of inserting the rake into the container using their foot or a golf club.




As the head


26


of the rake


14


is inserted into the tray


46


of the container


34


, the head


26


may engage the latching mechanism, such as the bi-stable mechanism


80


or


170


. The head


26


may contact the engagement portion


88


of the pivot member


84


as the head


26


enters the tray


46


causing the pivot member


84


to pivot, and causing the bias portion


92


to track or exert a force on the spring element


96


, or on the spring


182


or biasing mechanism


178


. As the head


26


continues the move into the tray


46


, and as the pivot member


84


continues to pivot, the spring element


96


or spring


182


causes the pivot member


84


to completely pivot into the closed or retaining position to maintain the rake


14


in the container


34


. For example, the lid


110


may be disposed over the tray


46


and rake


14


to prevent withdrawal of the rake


14


. In addition, the latch mechanism, such as the bi-stable mechanism


80


or


170


, prevents the lifting mechanism, such as the counter weight system


50


, from elevating the rake


14


out of the container


34


.




It is of course understood that other latching mechanisms may be used. For example, as the receiver or receiver tube


54


nears the bottom of the container


34


or main tube


42


it may engage a two-way latch or pressure sensitive latch


154


, which prevents the counter weight system


50


from elevating the rake


14


.




When needed, the rake


14


is selectively elevated out of the container


34


by a lifting mechanism, such as the counter weight system


50


. The rake


14


preferably is elevated in a substantially vertical direction, and substantially along its longitudinal axis


30


. Thus, the length and orientation of the rake


14


facilitates elevating the rake


14


to a convenient elevation. As stated above, the head


26


of the rake


14


preferably is elevated to a grasping elevation greater than 2 or 3 feet.




To elevate the rake


14


, it may be necessary to engage or disengage the latching mechanism. For example, the bi-stable mechanism


80


or


170


may be pivoted towards the open or release position. The user may pivot the pivot member


84


by pressing downwardly on the bias portion


92


with a golf club or foot, or by lifting upwardly on the lid


110


with the golf club. As the pivot member


84


is pivoted, the spring element


96


or spring


182


causes the pivot member


84


to pivot fully to the open position. In addition, the lid


110


is pivoted from above the rake


14


allowing the lifting mechanism, such as the counter weight system


50


, to elevate the rake


14


.




As stated above, the weight of the counter weight


58


preferably is slightly greater than the combined weight of the rake


14


and the receiver or receiver tube


54


. This slight mismatch in weight, and any frictional properties of the pulley


66


, result in the counter weight system


50


gradually elevating the rake


14


. Thus, the counter weight


58


gradually overcomes inertia and builds momentum, causing the rake


14


to gradually elevate from the container


34


. The gradual elevation of the rake


14


advantageously prevents any surprise or injury, which may result from a rapidly ejecting rake


14


.




It is of course understood that the rake


14


may be elevated with any type of lifting mechanism. In addition, the rake


14


may be selectively elevated in different ways depending on the latching mechanism. For example, if a two-way latch or pressure sensitive latch


154


is used, a downward force may be applied to the head


26


of the rake


14


causing the two-way latch or the pressure sensitive latch


154


to release.




The underground rake storage or device of the present invention provides significant advantages, including both substantially concealing the rake


14


, and selectively elevating the rake to a convenient grasping elevation. Disposing the rake


14


in container


34


underground reduces the risk that the rake


14


or container


34


will interfere with a golf ball or play of the game. Providing the container


34


flush with the surface


18


allows the location of the rake


14


to be easily ascertained, when needed. The underground rake storage system or device of the present invention has a low profile which maintains the esthetic appearance of the golf course, reduces the need for maintenance workers to move rakes during maintenance of the course, reduces the risk of broken rake handles, protects fiberglass rake handles from sunlight, and reduces the risk of injury.




In addition, elevating the rake


14


reduces the need for the golfer or user to bend over, squat, or kneel in order to retrieve the rake


14


. The movement of the rake


14


as it is elevated is graceful and sophisticated, adding to the esthetics of the golf course and the convenience of the players. In addition, the latching mechanism allows the player or user to selectively elevate the rake from a standing position.




It is to be understood that the above-described arrangements are only illustrative of the application of the principles of the present invention. Numerous modifications and alternative arrangements may be devised by those skilled in the art without departing from the spirit and scope of the present invention and the appended claims are intended to cover such modifications and arrangements. Thus, while the present invention has been shown in the drawings and fully described above with particularity and detail in connection with what is presently deemed to be the most practical and preferred embodiment(s) of the invention, it will be apparent to those of ordinary skill in the art that numerous modifications, including, but not limited to, variations in size, materials, shape, form, function and manner of operation, assembly and use may be made, without departing from the principles and concepts of the invention as set forth in the claims.



Claims
  • 1. A rake storage device configured to store a rake adjacent a sand trap of a golf course, and configured to selectively elevate the rake for use, the device comprising:a) an elongated container configured to be disposed underground adjacent the sand trap in a substantially vertical orientation, and configured to receive the rake therein; and b) a lifting mechanism, disposed in the elongated container, configured to elevate the rake and having: 1) a receiver, movably disposed in the elongated container, configured to receive the rake; and 2) a counter-weight, operatively coupled to the receiver and movably disposed in the elongated container, configured to elevate the receiver and the rake.
  • 2. A device in accordance with claim 1, further comprising:a) a pulley, disposed within the elongated container; and b) a cord, movably engaging the pulley and attached to the receiver and the counter-weight.
  • 3. A device in accordance with claim 1, wherein the lifting mechanism elevates a head of the rake to a grasping elevation greater than approximately two feet.
  • 4. A device in accordance with claim 1, wherein the lifting mechanism moves the rake between 1) a storage elevation in which the rake is disposed underground and within the container, and 2) a graspable elevation in which the head is disposed out of the container and above the ground.
  • 5. A rake storage system configured to store a rake adjacent a sand trap of a golf course, and configured to selectively elevate the rake for use, the device comprising:a) an elongated container configured to be disposed underground in a substantially vertical orientation; adjacent a sand trap of a golf course; b) a rake, removably disposed within the elongated container, having a longitudinal axis; and c) means, located within the elongated container, for elevating the rake along the longitudinal axis of the rake, and in a substantially vertical direction.
  • 6. A system in accordance with claim 5, wherein the means for elevating the rake includes a counter-weight.
  • 7. A system in accordance with claim 5, wherein the means for elevating the rake includes elevating a head of the rake to a grasping elevation greater than approximately two feet.
  • 8. A system in accordance with claim 5, wherein the means for elevating the rake includes:a) a receiver, slidably disposed in the container, configured to receive a handle of the rake therein; and b) a counter weight, operatively coupled to the receiver, having a weight greater than a combined weight of the receiver and the rake.
  • 9. A system in accordance with claim 8, wherein the means for elevating the rake further includes:a) a pulley, disposed within the container; and b) a cord, movably engaging the pulley and attached to the receiver and the counter-weight.
  • 10. A system in accordance with claim 5, wherein the means for elevating the rake includes moving the rake between 1) a storage elevation in which the rake is disposed underground and within the container, and 2) a graspable elevation in which the head is disposed out of the container and above the ground.
  • 11. A system in accordance with claim 5, further comprising:a) means for selectively retaining the rake within the container, and for selectively activating the means for elevating.
  • 12. A rake storage system configured to store a rake adjacent a sand trap of a golf course, and configured to selectively elevate the rake for use, the device comprising:a) an elongated container configured to be disposed underground adjacent the sand trap in a substantially vertical orientation; b) a rake, removably disposed within the elongated container; c) a lifting mechanism, disposed in the elongated container, configured to elevate the rake; and d) retaining means for selectively retaining the rake in the container.
  • 13. A system in accordance with claim 12, wherein the retaining means includes a bi-stable mechanism.
  • 14. A system in accordance with claim 12, wherein the retaining means includes a two-way latch.
  • 15. A system in accordance with claim 12, wherein the retaining means includes a pressure release catch.
  • 16. A system in accordance with claim 12, wherein the retaining means includes:a) a bi-stable mechanism, disposed in the container and engagable by the rake, and movable between 1) a secure position in which the mechanism retains the rake within the container, and 2) an open position in which the mechanism allows the rake to be removed from the container.
  • 17. A system in accordance with claim 12, wherein the retaining means includes:a) a pivot member, pivotally coupled to the container and engagably by the rake; and b) a spring element, disposed in the container and engagably by the pivot member, to bias the pivot member between two positions including 1) a secure position in which the member retains the rake within the container, and 2) an open position in which member allows the rake to be removed from the container.
  • 18. A system in accordance with claim 12, further comprising:a) a lid, pivotally coupled to the container.
  • 19. An underground rake storage system configured for use with a sand trap of a golf course, the system comprising:a) a rake configured to rake the sand trap and having: 1) a handle with proximal and distal ends; and 2) a head disposed on the distal end; b) an elongated container, configured to removably receive the rake therein, and configured to be disposed underground in a substantially vertical orientation, the container having: 1) a main tube configured to receive the handle of the rake; and 2) a tray, disposed on the main tube, configured to receive the head of the rake; and c) a lifting mechanism, disposed in the container, configured to vertically elevate the rake and having: 1) a receiver, sidably disposed in the main tube, configured to receive the proximal end of the handle of the rake therein; and 2) a counter weight, operatively coupled to the receiver, having a weight greater than a combined weight of the receiver and the rake.
  • 20. A system in accordance with claim 19, further comprising:a) a latching mechanism, disposed in the container, configured to releasably secure the rake in the container.
  • 21. A system in accordance with claim 19, further comprising:a) a pressure release catch, disposed in the bottom of the main tube, to engage and releasably secure the receiver in the tube.
  • 22. A system in accordance with claim 19, further comprising:a) a bi-stable mechanism, disposed in the container and engagable by the rake, and movable between 1) a secure position in which the mechanism retains the rake within the container, and 2) an open position in which the mechanism allows the rake to be removed from the container.
  • 23. A system in accordance with claim 19, further comprising:a) a pivot member, pivotally coupled to the container and engagably by the rake; and b) a spring element, disposed in the container and engagably by the pivot member, to bias the pivot member between two positions including 1) a secure position in which the member retains the rake within the container, and 2) an open position in which the member allows the rake to be removed from the container.
  • 24. A system in accordance with claim 19, further comprising:a) a guide tube, disposed in the main tube; and wherein the receiver is slidably disposed in the guide tube.
  • 25. A system in accordance with claim 19, further comprising:a) a pulley, disposed within the container; and b) a cord, movably engaging the pulley and attached to the receiver and the counter-weight.
  • 26. A system in accordance with claim 19, wherein the lifting mechanism elevates the rake along a longitudinal axis of the rake and in a substantially vertical direction.
  • 27. A system in accordance with claim 19, wherein the lifting mechanism moves the rake between 1) a storage elevation in which the rake is disposed underground and within the container, and 2) a graspable elevation in which the head is disposed out of the container and above the ground.
  • 28. A system in accordance with claim 19, wherein the lifting mechanism elevates a head of the rake to a graspable elevation greater than approximately two feet.
  • 29. A system in accordance with claim 19, further comprising:a) a lid, pivotally coupled to the container.
  • 30. A method for substantially concealing and selectively providing a rake adjacent a sand trap of a golf course, the method comprising the steps of:a) providing an elongated container configured to be disposed underground adjacent a sand trap of a golf course in a substantially vertical orientation; b) selectively disposing a rake in the container such that the rake is disposed underground in a substantially vertical orientation; and c) selectively elevating the rake out of the container in a substantially vertical direction by lifting a mechanism disposed within the elongated container, and substantially along a longitudinal axis of the rake.
  • 31. A method in accordance with claim 30, wherein the step of selectively elevating the rake out of the container further includes elevating a head of the rake to a grasping elevation greater than substantially two feet.
  • 32. A method in accordance with claim 30, wherein the step of selectively elevating the rake out of the container further includes elevating the rake with a counter-weight.
  • 33. A method in accordance with claim 30, further comprising the step of:a) selectively retaining the rake within the container with a bi-stable mechanism.
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Number Name Date Kind
2436631 Cohn Feb 1948 A
2528056 Henry Oct 1950 A
2757045 Nullet Jul 1956 A
2791347 Bochm May 1957 A
2857863 Dwyer Oct 1958 A
3233367 Hagle Feb 1966 A
3515263 Carlson Jun 1970 A
3584739 Erichson Jun 1971 A
4669625 Armstrong Jun 1987 A
4838416 Carman Jun 1989 A
4934550 Cash Jun 1990 A
5042812 Tillman Aug 1991 A
5735430 Gorman Apr 1998 A
6223926 Craven et al. May 2001 B1
6308854 Craven et al. Oct 2001 B2