The present invention relates generally to the field of lawn and garden tools and implements. More specifically, the invention is in the subfield of weed removal tools and implements.
Weeds and other invasive plants can be an unsightly and difficult problem to address in lawns, flower beds, fields, and other outdoor areas around homes, businesses, or other properties. Weeds may grow and multiply quickly and require frequent maintenance to remove or kill. Oftentimes weed removal requires the use of chemicals that may be hazardous to the user or that will also kill beneficial or desirable plants. Physical removal of weeds avoids the use of hazardous chemicals but is very labor intensive and often requires a worker or homeowner to spend extended periods of time in a crouched, bent over, or kneeling position.
An aspect of an embodiment of the present invention provides a weeding device for physical removal of weeds by the root without the need to crouch, bend over, or kneel. The weeder may allow a worker to quickly and effectively remove a weed, including the main root, without undue strain. Such a device may be particularly useful in areas where hazardous chemicals may not be used because of the risk of exposure to children, pets, or users, or where the desirable plants may be harmed or affected by herbicides.
The accompanying drawings, which are incorporated into and form a part of the instant specification, illustrate several aspects and embodiments of the present invention and, together with the description herein, serve to explain the principles of the invention. The drawings are provided only for the purpose of illustrating select embodiments of the invention and are not to be construed as limiting the invention.
The lower handle 26 may rotate about the handle pivot 28, and in doing so, through its connection to the rod 32 via the upper connection 30, translate the rod 32 vertically. The motion of the rod 32 is transferred through the lower connection 34 to the moveable jaw 40. As the rod 32 translates vertically, the moveable jaw 40 rotates about the jaw pivot 46. When the lower handle 26 is squeezed or moved upward towards the upper handle 24 (i.e., closing the handle), the rod 32 moves upward and pulls on the moveable jaw 40, which rotates clockwise about the jaw pivot 46 to close the jaws 36 in a grasping or clasping motion. In certain embodiments, the motion of the handle 22 may be translated to the jaws 36 of the weeding device 10 through one or more cables in place of or in addition to the rod 32.
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When the weeding device is not in use, the sheath 74 may rest in an extended position and covers or substantially covers the jaws 38, 40 and the blades 42, 44 affixed to the jaws 38, 40 to protect a user or other persons from potential injury from sharp edges or any potential pinch points of the jaw mechanism. During use, a user may position the weeding device in preparation for penetrating the ground and removing a weed, rock, or other item. The user may then force the weeding device against the ground either by applying pressure to the handle or stepping on the pedal 48. As the weeding device is pressed against the ground, the sheath 74 will be braced against the ground and retract as the blades 42, 44 penetrate into the ground and it will translate vertically to allow the blades 42, 44 to extend. The motion of the sheath 74 may be guided or constrained by a guide pin 78 riding in a guide slot 76. When the user pulls the weeding device from the ground, the sheath 74 may return to its extended position by gravity, a spring, or any other suitable return mechanism and once again cover the blades 42, 44 or other parts of the jaw mechanism.
The handle 22 allows a user to squeeze or otherwise move the lower handle 26 closer to the upper handle 24 to activate the rod 32, which directs motion from the handle 22 to the jaws of the weeding device. When the user squeezes the handle 22 or moves the lower handle 26 closer to the upper handle 24, the lower handle 26 pivots about the handle pivot 28 and the upper connection 30 and rod 32 translate vertically along the central axis of the body 20. This motion is then transferred through the rod 32 to the jaws of the weeding device 10 to close the jaws 36 and grasp a weed, rock, or other item embedded in the ground. It should be appreciated that the handle 22 may include ergonomic grips, rubber, foam, or other cushioning materials, or take any geometry, shape, or size as necessary for user comfort. Furthermore, the handle pivot 28 may include one or more locking mechanisms to lock the lower handle 26 in a retracted position. For example, the handle pivot 28 may include a ratcheting mechanism such that when a user squeezes the lower handle 26 towards the upper handle 24, the ratcheting mechanism holds the lower handle 26 in the squeezed position, which also holds the jaws in a closed position grasping a weed, rock, or other item to be removed from the ground. By locking the lower handle 26, and subsequently the jaws, in a closed position, a user may then secure the weed, rock, or other item and then twist, rock, or otherwise manipulate the weeding device without the need to maintain a grip on the lower handle 26 to preserve grasping pressure at the jaws. In such an embodiment, the weeding device may also include a trigger or other release mechanism to release the ratcheting mechanism and release the weed. This trigger may be located on the handle 22, body 20, ejection rod, or any other part of the weeder as desired or required. Similarly, a ratcheting mechanism may allow for progressive application of grasping pressure through repeated squeezing of the lower handle 26. For example, the ratcheting mechanism may allow the lower handle 26 to return to an open or un-squeezed position while locking the rod 32, and subsequently the jaws, in place. This type of mechanism would allow a user to repeatedly squeeze the handle 22 while progressively closing the jaws or applying greater pressure at the jaws which are retained in their position by the ratcheting mechanism. A user may then twist, rock, or otherwise manipulate the weeding device to loosen the weed, rock, or other item without having to hold or maintain grip pressure on the handle. When the weed, rock, or other item has been removed, the user may then use a trigger or other release mechanism to release the ratcheting mechanism and allow the jaws to release the weed, rock, or other item from its grasp.
The adjustment collar 68 may be rotatably attached to the upper connection 30 such that it may freely rotate about the upper connection 30. In certain embodiments, the adjustment collar 68 may include printed numbers, or may be indexed or include detents to provide the user with set adjustment points or locations for the adjustment of the jaw opening. The adjustment collar 68 may also include internal threads at the mating point with the rod 32, which may also have complimentary threads. The adjustment collar 68 may allow a user to twist the adjustment collar 68, which freely rotates about the upper connection 30, to thread the rod 32 up or down relative to the upper connection 30 and the lower handle 26. The adjustment collar 68 allows the effective length of the rod 32 to be adjusted, subsequently moving the moveable jaw closer or further from the fixed jaw at the lower end of the weeder. The jaw opening may then be adjusted to be larger or smaller for weeds, rocks, or other items of varying size while maintaining a consistent grip distance between the upper handle 24 and lower handle 26 of the weeding device. It should be appreciated that the adjustment of the effective length of the rod 32 may be located at either the handle 22 or jaw end of the weeding device, and any suitable adjustment mechanism may be used including, but not limited to, threaded adjusters, levers, slip joints, cam lock adjusters, or any other available adjustment mechanism.
The cross-grip 72 may be in communication with the body 20 or the handle 22 of the weeding device. As shown, the cross-grip 72 may be an additional grip that is mounted perpendicularly to the body 20 of the weeding device and may pass through the body 20 of the weeding device to allow for right- or left-handed use. However, it should be appreciated that the cross-grip 72 may be located at any location as necessary on the weeding device, and it may be positioned in line with, or perpendicular to, the main handle 22. Furthermore, the cross grip 72 may be a simple bar that passes through an opening in the body 20 or a mounting ear attached to the body 20. In certain embodiments, the cross grip 72 may be removable or adjustable by a user. For example, the cross grip 72 may be a shorter bar with a fitting or threaded end that allows it to mate with a complementary fitting or threaded orifice on the body 20 or handle 22 of the weeding device. A user may then move the cross-grip 72 to different locations as necessary for different applications, handedness, or user comfort. The cross-grip 72 may be a simple bar, an ergonomic handle with a rubberized or cushioned grip, or may be mounted to the weeding device at an angle. In certain embodiments the cross-grip 72 may be hinged to allow it to fold into a stowed position next to the body 20 of the weeding device for easier storage, hanging, or to prevent obstruction while the weeding device is in use.
The cross-grip 72 provides an additional location for a user to place their hands while using the weeding device. For instance, when the user applies force on the weeding device to insert the blades into the ground, the cross-grip 72 allows for a second hand placement to apply additional force and for a user to steady himself or herself. In the case of a user applying force through a pedal, the cross-grip 72 again offers the user an additional location to grasp the weeding device for improved stability and control. The cross-grip 72 may also be used to twist the weeding device to loosen or otherwise dislodge a weed, rock, or other item that is to be removed from soil.
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The weeding device 100 may also include an optional ejector 158 located between the fixed jaw 138 and the moveable jaw 140. The ejector 158 may be attached or otherwise affixed to an ejector rod 151 via one or more ejector adjustment bolts 160. The ejector 158 may then be extended or otherwise manipulated by a user through an ejector pedal 150 attached to an upper end of an ejector rod 151. The ejector 158 and ejector rod 151 may be retained on the weeding device 100 by an upper ejector guide 154 and a lower ejector guide 156 and may be held in a retracted position by a spring 152. It should be appreciated that the ejector 158 and ejector rod 151 may be in slidable communication through any connection means or any number of ejector guides as desired or required.
The weeding device 100 may arrange the cross handle 124, grip lever 126, ejector pedal 150, and an optional pedal 148 to be perpendicular to the central axis of the body 120 of the weeding device. In certain embodiments, the cross handle 124, grip lever 126, ejector pedal 150, and pedal 148 may also be radially aligned about the body 120 of the weeding device 100 such that a user may easily have access to the ejector pedal 150 and pedal 148 with the user's hands or feet while the user grasps the cross handle 124, grip handle 126, or both, without having to rotate or otherwise reposition the weeding device 100 during use.
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In order to remove a weed, a user may take the weeding device 10, 100 and place the jaws 36, 136 around or about the base of the weed or proximate to the item the user wishes to remove. The user may then apply a force to the handle 22, 122 of the weeding device 10, 100, or they may step on or otherwise apply a force to the pedal 48, 148 to cause the blades 42, 44, 142, 144 of the jaws of the weeding device 10, 100 to plunge into or penetrate the ground. The user may then squeeze the handle 22, 122 or grip lever 126 to close the jaws 36, 136 of the weeding device 10, 100 and grasp the weed by the root. Once secured, the user may pull up directly on the weeding device 10, 100 and pull the weed straight out of the ground with little to no ground damage. Once removed, the weed and associated dirt plug may be ejected from the jaws 36, 136 by pushing the ejector rod 50, 151 forward to release the weed and dirt plug. The user may then release the ejector rod 50, 151 and the return spring 52, 152 will retract it into its original position.
The design of the weeding device 10, 100 allows for additional functionality depending on the condition of the ground and the item a user wishes to remove from the ground. For example, the user may squeeze the handle 22, 122 or grip lever 126 of the weeder 10, 100 to close the jaws 36, 136 and use the weeder 10, 100 as a spade or a tool to loosen particularly hard or packed ground around a weed prior to removal. The ground-breaking function of the weeder 10, 100, either with the jaws 36, 136 closed to form a single spade or with the jaws 36, 136 open to allow both blades 42, 44, 142, 144 to penetrate and break up the soil, may be useful when removing a particularly large weed or a weed with a large root ball. For instance, a user may penetrate the ground with the jaws 36, 136 of the weeder 10, 100 multiple times around a large weed to loosen the weed, its root ball, and the surrounding dirt. Once the ground has been broken and the root ball loosened, the user may then penetrate into the ground, the root ball, or both, and use the grasping function of the jaws 36, 136 to remove a weed and its associated root ball even though they may be larger in diameter than the jaws 36, 136 when fully opened. Similarly, a user may insert the jaws 36, 136 of the weeder 10, 100 into the ground at the base of a weed, remove the jaws 36, 136 from the ground, and re-insert them in an offset position. A user may repeat this process multiple times working around the base of the weed to loosen the dirt and remove the weed and its root system.
A user may also adjust the opening of the weeder 10, 100 jaws 36, 136 by squeezing or otherwise rotating the lower handle 26 or grip lever 126 about the handle pivot 28, 128 to set the appropriate opening of the jaws 36, 136 prior to penetrating the ground. For example, the jaws 36, 136 of the weeding device 10, 100 may be partially closed prior to plunging by squeezing the handle 22, 122 or grip lever 126 of the weeder to allow for a smaller opening when removing smaller weeds. This results in less damage to the ground and less excess dirt removal while removing a weed. The user may also twist or lever the weeder 10, 100 side to side to loosen a weed and its roots during removal. The weeder 10, 100 may also be used as a tool to remove dirt plugs from the ground when planting flowers or other small plants.
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The applicant contemplates within the context of this invention that it may be produced in any geometrical form with variable length, width, shape, size, or other dimensional variability to match the requirements of specific applications for use.
It should be appreciated that the weeding device 10, 100 may be manufactured in a variety of ways. Specifically, this includes forming, molding, stamping, casting, forging, or otherwise producing components, sub-components, or portions thereof. The device may be produced as an assembly of parts wherein those parts are attached in any manner, including but not limited to fusing, welding, friction fits, threaded connections, snap connections, adhesives, or any other method for connecting one component, sub-component, or any portion thereof to another component, sub-component or portion thereof. The weeding device 10, 100 may also be manufactured so as to combine different functional elements into a single, multi-function component that would take on the function of two otherwise separate components.
It should be appreciated that various sizes, dimensions, contours, rigidity, shapes, flexibility and materials of any of the components or portions of components in the various embodiments discussed throughout may be varied and utilized as desired or required. Similarly, locations and alignments of the various components may vary as desired or required.
It should be appreciated that any of the components or modules referred to with regards to any of the present invention embodiments discussed herein, may be integrally or separately formed with one another. Further, redundant functions or structures of the components or modules may be implemented.
It should be appreciated that the weeding device 10, 100 and related components discussed herein may take on all shapes along the entire continual geometric spectrum of manipulation of x, y and z planes to provide and meet the anatomical and structural demands and operational requirements. Moreover, locations and alignments of the various components may vary as desired or required.
In summary, while the present invention has been described with respect to specific embodiments, many modifications, variations, alterations, substitutions, and equivalents will be apparent to those skilled in the art. The present invention is not to be limited in scope by the specific embodiment described herein. Indeed, various modifications of the present invention, in addition to those described herein, will be apparent to those of skill in the art from the foregoing description and accompanying drawings. Accordingly, the invention is to be considered as limited only by the spirit and scope of the following claims, including all modifications and equivalents.
Still other embodiments will become readily apparent to those skilled in this art from reading the above-recited detailed description and drawings of certain exemplary embodiments. It should be understood that numerous variations, modifications, and additional embodiments are possible, and accordingly, all such variations, modifications, and embodiments are to be regarded as being within the spirit and scope of this application. For example, regardless of the content of any portion (e.g., title, field, background, summary, abstract, drawing figure, etc.) of this application, unless clearly specified to the contrary, there is no requirement for the inclusion in any claim herein or of any application claiming priority hereto of any particular described or illustrated activity or element, any particular sequence of such activities, or any particular interrelationship of such elements. Moreover, any activity can be repeated, any activity can be performed by multiple entities, and/or any element can be duplicated. Further, any activity or element can be excluded, the sequence of activities can vary, and/or the interrelationship of elements can vary. Unless clearly specified to the contrary, there is no requirement for any particular described or illustrated activity or element, any particular sequence or such activities, any particular size, speed, material, dimension or frequency, or any particular interrelationship of such elements. Accordingly, the descriptions and drawings are to be regarded as illustrative in nature, and not as restrictive. Moreover, when any number or range is described herein, unless clearly stated otherwise, that number or range is approximate. When any range is described herein, unless clearly stated otherwise, that range includes all values therein and all sub ranges therein. Any information in any material (e.g., a United States/foreign patent, United States/foreign patent application, book, article, etc.) that has been incorporated by reference herein, is only incorporated by reference to the extent that no conflict exists between such information and the other statements and drawings set forth herein. In the event of such conflict, including a conflict that would render invalid any claim herein or seeking priority hereto, then any such conflicting information in such incorporated by reference material is specifically not incorporated by reference herein.
The present application claims priority under 35 U.S.C. § 119(e) from U.S. Provisional Application Ser. No. 63/062,901, filed Aug. 7, 2020, entitled “Device for Grasping and Removing Weeds or Other Small Plants;” the disclosure of which is hereby incorporated by reference herein in its entirety.
Number | Date | Country | |
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63062901 | Aug 2020 | US |