Adjustable Locking Shaft for Sporting Goods
An adjustable and releasably lockable shaft for sporting goods, such as lacrosse sticks, and a method for adjusting and releasably locking the length of sporting goods shafts, is disclosed. The device may include a first shaft and a second shaft, which may be connected through a connector component. The connector component may provide structural support for one or both shafts, resisting flexion and deformation during use. One or both shafts may be unlocked and removed from the connector component, allowing for easier travel and storage. Shafts may also be connected when desirable, such as for defensive lacrosse play, or disconnected when shorter devices are desired, such as for offensive lacrosse play. Other components and structures may also be attached using similar methods and structures.
This application claims the priority of U.S. Provisional Patent Application No. 62/382,075 filed on Aug. 31, 2016, the disclosure of which is incorporated herein in its entirety.
The present disclosure relates generally to sporting goods which include shafts. More particularly, the present disclosure relates to an adjustable and releasably locking shaft for items such as lacrosse sticks. The present disclosure also relates to other items where adjustability of length may be desirable, such as paddles.
A variety of sporting goods products which include shafts, such as lacrosse sticks and kayak paddles, are well known in the art. These sporting goods products often prove to be difficult to travel with and burdensome to store due to their length. Attachable components or telescoping shafts have been explored, though these attempts have often proven overly complex, structurally weak, or otherwise unreliable or inconvenient to use. The risk of changing the length of the shaft of a lacrosse stick, also known as a crosse, during game play has also been suggested as a source of concern for rulemaking bodies, such as the NCAA Men's Lacrosse Rules Committee. Additionally, sports such as lacrosse have different length shafts for offensive and defensive positions. While having to travel with and store a very long stick for playing a defensive position, a player may also have to travel with and store a second, shorter stick for offensive play. A newcomer to the sport may have to purchase two separate sticks, one for each position, while discovering where that player's aptitudes are best utilized.
SUMMARYThe disclosure relates to an adjustable and releasably lockable shaft for sporting goods products. More specifically, the disclosure relates to an adjustable and releasably lockable shaft for a lacrosse stick, also referred to as a crosse.
The present invention is a sporting goods device, such as a lacrosse stick. Lacrosse sticks typically vary in length depending on the position played by the athlete. Including the head of a lacrosse stick, an offensive lacrosse stick will typically be 40″ to 42″ in length, while a defensive lacrosse stick will typically be 52″ to 72″ in length. The present invention provides a single device which can be adjusted for either defensive or offensive play, while also providing for easier storage and travel. The present invention may also be releasably lockable at the desired length.
The device may include a first shaft, a second shaft, and a connector. The first shaft, second shaft, and connector may connect along an axis which substantially passes longitudinally through all three components. In one embodiment, the first shaft and second shaft may each be 30″ long, though other lengths may also be used. The connector may be a separate or removable component from the second shaft, or may be connected to it or unitary with it. The first shaft and the connector may each include one or more locking features, such that when the first shaft locks onto the connector, the locking features resist translation of the first shaft along the longitudinal axis, thus preventing the first shaft from separating from the device when not desired. The bottom end of the first shaft may be proximal to or adjacent to the top end of the second shaft when both shafts are connected to the connector and locked into position. The top end of the first shaft may receive a lacrosse stick head, while the bottom end of the second shaft may optionally receive a lacrosse stick butt. When a shorter device is desired, the locking features may be actuated to release the locking function, allowing the connector to be disconnected from the first shaft.
Lacrosse stick shafts can be made from a variety of materials, including wood, plastic, fiberglass, titanium, aluminum, resin, and other metals and composites that are known in the art. Some flexibility is often desirable to lacrosse stick shafts, though the flexibility can be a weakness at connection points. The connector may be configured so that it provides structural support to the first shaft or to both shafts, such as to resist flexion of one or both shafts relative to the axis passing longitudinally through the connector. The connector may be made of metal, other suitably rigid materials, or any material that may achieve desirable performance while providing structural support to the device.
As many lacrosse stick shafts are at least partially hollow, the connector may be configured so as to be connected to one or both shafts by being inserted at least partially inside of one or both shafts. In such a way, the connector may be entirely, largely, or at least partially not visible when the device is fully assembled. By inserting the connector into one or both shafts, the impact of the connector on the cross-sectional perimeter of the device can be minimized, which can be a concern according to NCAA regulations. The connector may, similarly, be lockable with one or both shafts.
A shaft of the device may include an opening which may engage with a button or other protrusion which may extend from a surface of the connector. The protrusion may extend at least partially into the opening in the shaft when in a locked configuration. The protrusion may be pressed in, towards the inside of the connector, or otherwise actuated to cause the protrusion and the opening in the shaft to unlock, releasing the shaft from the connector. The button or other protrusion may be attached to the connector by means of a component or feature such as a spring, which may include a compression spring, torsion spring, leaf spring, or other means for flexion or resisting motion known in the art. The button may be pressed inward from the outside of the shaft and into an open area within the connector in order to unlock the shaft and adjust the length of the device.
The protrusion may also be a feature or structure on the connector without necessarily being a separate component. The connector may also have a flexible structure extending from it which includes the protrusion, or may be slotted, recessed, or otherwise configured to create an at least partially flexible portion to allow for actuation of the protrusion away from the complementary locking opening or structure in the shaft.
The connector may also seat at least partially around one or both shafts, with a shaft at least partially recessed within the connector. In such a design, the locking features may be switched between the connector and one or both shafts. This may offer a less expensive alternative design, though a connector which seats within one or both shafts may be preferable for gameplay.
In one embodiment, the connector may provide structural support to at least 10% of the longitudinal length of one or more shaft components. It should be understood that other length of support may also be implemented without deviating from the spirit or intent of the invention and disclosure. Lengths may include, but are not limited to, 1″ to 12″ of support for one or both shaft components, such as a connector which extends 6″ into a shaft.
The lockable feature between a shaft and the connector may also be released by means of sliding a feature rather than by depressing it inwards into the device. A button or other similar structure may be actuated so as to slide an unlocking surface towards a complimentary unlocking feature in the other component. As one example, a button on a shaft may be slid towards the connector, causing a component in the shaft to contact an angled and at least partially flexible feature in the connector, causing it to deflect and thereby unlock the shaft from the connector. The features and orientation may also be switched and reversed.
The first shaft may also be threaded onto the second shaft. Standard threading may not guarantee proper orientation and may not provide adequate structural support or locking at the interface. However, the first shaft may include a threaded feature, such as a ring. This ring may be connected to the first shaft so as to be able to freely rotate about the axis passing longitudinally through the first shaft. The ring may, however, be captured by a feature on the first shaft so as to prevent or limit its translation along the axis. The first shaft may also include a connector which may include a keying feature extending from the bottom of the first shaft and within the ring. This connector may also be a separate component which may be inserted into one or both shafts. The second shaft may include a threaded feature which may attach to the threads of the ring. The second shaft may also include a complimentary keying feature configured to interact with the connector extending from the first shaft. The keying feature may prevent rotation of the second shaft relative to the first shaft, while also providing structural support between the two. When the ring is rotated, the second shaft and first shaft thread together, while translating towards each other without relative rotation due to the keying structure of the connector interface with the second shaft. It should be understood that the keying feature may be on either shaft, including extending inside of the ring component from the opposed shaft.
A lacrosse stick head may be connected to a shaft using known means, such as a press-fit or using a set screw, or through similar means to those discussed above for connecting a shaft with a connector or with another shaft. A lacrosse stick butt may also be connected to a shaft through similar means. The connection means for any component may also be a flexible or partially flexible structure with a locking feature, such as a button. This may be pressed into the shaft, flexing towards the inside of the shaft, until it releasably locks into place at an opening or other locking structure within the shaft.
A common cross-sectional shape for lacrosse sticks is substantially hexagonal. One or more of the two shafts and the connector may be hexagonal in cross-section. The components may also be configured and sized so as to line up when one is inserted into another, such as where the outside shape of the connector substantially conforms to the internal shape of a shaft. However, one of the components, such as the connector, may also be sized and shaped differently, such as a rectangle or with a substantially circular cross-section. The component may also be sized or shaped so as to be rotatable within its complimentary components, such as a connector which may rotate within a shaft. The connector may be configured to rotate about the longitudinal axis passing through the shaft until the connector's locking feature interfaces with the shaft's complimentary locking feature.
The above discussed device may also be used with other types of sporting goods and products where adjustability of length and releasable locking may be desirable. The device may have a paddle blade attached to one or both shafts, as mentioned for lacrosse stick heads and butts, or may include other desirable portions of athletic instruments.
It is to be understood that the above mentioned features and the features yet to be explained hereinafter can be used not only in the respectively mentioned combinations but also in other combinations or alone without departing from the context of the present invention and disclosure.
The invention is now disclosed in detail with reference to exemplary embodiments shown in the accompanying drawings, where:
Exemplary embodiments of the disclosure are illustrated in the Figures and are explained in the following description in more detail, wherein identical reference numbers refer to identical, or similar, or functionally identical components.
Various aspects of the illustrative embodiments will be described using terms commonly employed by those skilled in the art to convey the substance of their work to others skilled in the art. However, it will be apparent to those skilled in the art that the present invention may be practiced with only some of the described aspects, without certain details, or where well-known features are omitted or simplified in order not to obscure the illustrative embodiments, without deviating from the spirit and intent of the disclosure.
Various operations will be described as multiple discrete operations, in turn, in a manner that is most helpful in understanding the present invention. However, the order of description should not be construed as to imply that these operations are necessarily order dependent or that they need to be performed in the order of presentation.
The phrase “in one embodiment” is used repeatedly. The phrase generally does not refer to the same embodiment, however, it may. The terms “comprising”, “having” and “including” are synonymous, unless the context dictates otherwise.
In the embodiment of the device 100 shown in
As further shown in
While the present invention has been related in terms of the foregoing embodiments, those skilled in the art will recognize that the invention is not limited to the embodiments described. The present invention can be practiced with modification and alteration within the spirit and scope of the appended claims. Thus, the description is to be regarded as illustrative instead of restrictive on the present invention. Accordingly, various modifications, adaptations and alternatives may occur to one skilled in the art without departing from the spirit of the invention and scope of the claimed coverage.
Claims
1. A sporting goods device, comprising:
- a first shaft component further comprising a first end, a second end, a first external surface, and a first locking feature, and defining a first substantially longitudinal axis;
- a second shaft component further comprising a third end and a fourth end and defining a second substantially longitudinal axis; and
- a connector component further comprising a second external surface and a second locking feature, and defining a third substantially longitudinal axis;
- wherein the first shaft component is removably connectable to the connector component such that the first substantially longitudinal axis is substantially coaxial with the third substantially longitudinal axis and the first locking feature is configured to resist translation of the first shaft component along the first substantially longitudinal axis relative to the connector component when in a first unlockable locked configuration with the second locking feature and further wherein the second end is substantially proximal to the third end and the first substantially longitudinal axis is substantially coaxial with the second substantially longitudinal axis when the second shaft component is connected to the connector component and the first shaft component is in a first unlockable locked configuration with the second locking feature.
2. The sporting goods device according to claim 1, further wherein the first shaft component defines a first at least partially open internal volume and the connector component is configured to fit at least partially within the first at least partially open internal volume.
3. The sporting goods device according to claim 1, further wherein the second shaft component is removably connectable to the connector component such that the second substantially longitudinal axis is substantially coaxial with the third substantially longitudinal axis, and further wherein the connector component further comprises a third locking feature and the second shaft component further comprises a fourth locking feature, and the fourth locking feature is configured to resist translation of the second shaft component along the second substantially longitudinal axis relative to the connector component when in a second unlockable locked configuration with the third locking feature.
4. The sporting goods device according to claim 3, further wherein the second shaft component defines a second at least partially open internal volume and the connector component is configured to fit at least partially within the second at least partially open internal volume.
5. The sporting goods device according to claim 2, further wherein the connector component is substantially unitary with the second shaft component.
6. The sporting goods device according to claim 2, further wherein the first locking feature is a first opening defined by the first surface, and further wherein the second locking feature comprises a button feature which is configured to releasably lock with the first opening when the first shaft component is in the first unlockable locked configuration with the connector component.
7. The sporting goods device according to claim 6, further wherein the button feature is connected to the connector component by means of a spring, such that the button feature may be actuated away from the first external surface and towards a second at least partially open volume defined by the connector component.
8. The sporting goods device according to claim 6, further wherein the button feature is connected to an at least partially flexible portion of the connector component, such that the button feature may be actuated away from the first external surface and towards a second at least partially open volume define by the connector component.
9. The sporting goods device according to claim 2, further wherein the connector component is substantially rigid, such that the connector component provides at least partial support against flexion of the first shaft component relative to the first substantially longitudinal axis when the first shaft component is in the first unlockable locked configuration with the connector component.
10. The sporting goods device according to claim 2, further wherein the connector component further comprises at least one unlocking surface and the first shaft component further comprises an unlocking actuator, and further wherein the at least one unlocking surface is able to be deflected away from the second external surface and towards a second at least partially open volume defined by the connector assembly when the unlocking actuator is actuated.
11. The sporting goods device according to claim 2, wherein the second shaft component further comprises a first at least partially threaded component which is rotatably connected to the second shaft component such that the first at least partially threaded component may rotate about the second substantially longitudinal axis without having to substantially translate relative to the second substantially longitudinal axis, and further wherein the first shaft component further comprises a first at least partially threaded structure configured to thread together with the first at least partially threaded component so as to resist translation of the second shaft component relative to the second substantially longitudinal axis relative to the first shaft component.
12. The sporting goods device according to claim 11, further wherein the connector component is connected to the second shaft component and the connector component is configured so as to resist rotation of the second shaft component relative to the first shaft component when at least partially inserted into the first at least partially open volume.
13. The sporting goods device according to claim 1, further wherein the connector component defines a first at least partially open internal volume and the first shaft component is configured to seat at least partially within the first at least partially open internal volume.
14. The sporting goods device according to claim 2, further comprising a lacrosse stick head which is configured to seat at least partially within the first at least partially open internal volume.
15. The sporting goods device according to claim 2, further wherein the connector component is configured to rotate substantially freely about the first substantially longitudinal axis relative to the first shaft component while at least partially within the first at least partially open internal volume until the first locking feature enters the first unlockable locked configuration with the second locking feature.
16. The sporting goods device according to claim 2, further comprising a paddle blade which is configured to seat at least partially within the first at least partially open internal volume.
17. A method of adjusting the length of a sporting goods device, comprising:
- removably connecting a first shaft component to a connector component which defines a first substantially longitudinal axis; and
- removably connecting a second shaft component to the connector component;
- wherein the connector component provides at least partial structural support to decrease flexion of the first shaft component relative to the first substantially longitudinal axis, and further wherein the first shaft component comprises a first locking feature and the connector component comprises a second locking feature, and further wherein the first locking feature is configured to removably connect with the second locking feature such that the first shaft component releasably locks to the connector component to resist translation of the first shaft component relative to the connector component along the first substantially longitudinal axis.
18. The method of adjusting the length of a sporting goods device according to claim 17, further wherein the first shaft component defines an at least partially open internal volume, and further wherein the connector component is configured to at least partially seat within the at least partially open internal volume.
19. The method of adjusting the length of a sporting goods device according to claim 17, further comprising removably connecting a lacrosse stick head to the first shaft component, and further wherein the lacrosse stick head is configured to at least partially seat within the at least partially open internal volume.
20. A lacrosse stick, comprising:
- a first shaft further comprising a first end, a second end, and a first external surface, and defining a first substantially longitudinal axis, and wherein the first external surface defines a first locking opening;
- a second shaft further comprising a third end, a fourth end, and a second external surface, and defining a second substantially longitudinal axis, and wherein the second external surface defines a second locking opening; and
- a substantially rigid connector further comprising a third external surface, a first locking protrusion, and a second locking protrusion, and defining a third substantially longitudinal axis;
- wherein the first shaft is removably connectable to the connector substantially along the first substantially longitudinal axis, and the second shaft is removably connectable to the connector substantially along the second longitudinal axis, such that the first substantially longitudinal axis is substantially coaxial with the second substantially longitudinal axis, the connector is configured to removably seat at least partially within a first at least partially open volume defined by the first shaft, the connector is also configured to removably seat at least partially within a second at least partially open volume defined by the second shaft, the first locking protrusion is configured to releasably at least partially seat within the first locking opening so as to resist translation of the first shaft along the first substantially longitudinal axis relative to the connector when the first locking protrusion is at least partially seated within the first locking opening, and the second locking protrusion is configured to releasably at least partially seat within the second locking opening so as to resist translation of the second shaft along the second substantially longitudinal axis relative to the connector when the second locking protrusion is at least partially seated within the second locking opening.
Type: Application
Filed: Mar 17, 2017
Publication Date: Mar 1, 2018
Applicant: Twin Lacrosse, Inc. (East Longmeadow, MA)
Inventor: Brian John Calandruccio (East Longmeadow, MA)
Application Number: 15/462,698