The present specification relates generally to luggage and more specifically relates to a stabilization mechanism for a luggage handle.
Travel is a common human activity and luggage is an important feature of travel. When it comes to air travel, the demands on luggage can be particularly intense.
In accordance with an aspect of the invention, there is provided a telescoping luggage handle. The luggage handle includes an elongated element and a conduit for receiving said elongated element. The elongated element has a retracted position in relation to the conduit wherein the elongated element is substantially entirely disposed within the conduit. The elongated element is movable from the retracted position to an extended position wherein a predefined length of the elongated element remains within the conduit. The luggage handle further includes at least one stabilizer disposed along the predefined length when the elongated element is in the extended position. The at least one stabilizer is configured to restrict lateral movement of the elongated in relation to the conduit.
The at least one stabilizer may be a plurality of stabilizers.
The at least one stabilizer may be further configured to restrict longitudinal movement of the elongated element between the extended position and the retracted position.
A first stabilizer of the plurality of stabilizers may include a first stopping face. A second stabilizer of the plurality of stabilizers may include a second stopping face. The first stopping face may contact the second stopping face to restrict longitudinal movement of the elongated element.
The at least one stabilizer may be configured to permit said elongated element to slide within said conduit between said retracted position and said extended position.
The at least one stabilizer may include a cap having a flexible portion and an opening. The cap may be disposed at an end of the conduit to receive the elongated element through the opening. The at least one stabilizer may include a biasing member engaging the flexible portion of the cap. The biasing member may urge the flexible portion of the cap toward the elongated element.
The biasing member may include a clip spring.
The biasing member may include a resilient material disposed in said flexible portion.
The telescoping luggage handle may further include a retaining mechanism disposed on the cap and on the end of said conduit. The retaining mechanism may be configured to retain the cap on the conduit.
The retaining mechanism may include a protrusion on the cap. The protrusion may be configured to mate with the conduit.
The at least one stabilizer may include a cap having a flexible portion. The cap may be disposed at an end of the elongated element such that the cap is received by the conduit. The at least one stabilizer may include a biasing member engaging the flexible portion of the cap. The biasing member may urge the flexible portion of the cap toward an inside wall of the conduit.
The biasing member may include a coil spring.
The telescoping luggage handle may further include a retaining mechanism disposed on the cap and on the end of the elongated element. The retaining mechanism may be configured to retain the cap on the elongated element.
The retaining mechanism may include a protrusion on the cap. The protrusion may be configured to mate with the elongated element.
The conduit and the elongated element may include a peanut shaped cross section.
The conduit may be at least as long as said predefined length.
In accordance with another aspect of the invention, there is provided a stabilizer for a telescoping luggage handle. The stabilizer includes a cap having a flexible portion and having an opening. The cap is configured to be disposed at an end of a conduit. The cap is further configured to receive an elongated element through the opening The stabilizer further includes a biasing member engaging the flexible portion of the cap. The biasing member urges the flexible portion of the cap toward the elongated element.
The stabilizer may further include a stopping face configured to restrict longitudinal movement of the elongated element relative to the conduit.
The stabilizer may further include a retaining mechanism disposed on the cap. The retaining mechanism may be configured to retain the cap on the conduit.
The retaining mechanism may include a protrusion on the cap. The protrusion may be configured to mate with the conduit.
The biasing member may include a clip spring.
The biasing member may include resilient material disposed in said flexible portion
In accordance with yet another aspect of the invention, there is provided a stabilizer for a telescoping luggage handle. The stabilizer includes a cap having a flexible portion the cap configured to be disposed at an end of an elongated element. The cap is configured to be received by a conduit. The stabilizer further includes a biasing member engaging the flexible portion of the cap. The biasing member urges said flexible portion of the cap toward an inside wall of the conduit.
The stabilizer may further include a stopping face configured to restrict longitudinal movement of the elongated element relative to the conduit.
The stabilizer may further include a retaining mechanism disposed on the cap. The retaining mechanism may be configured to retain said cap on said elongated element.
The retaining mechanism may include a protrusion on the cap. The protrusion may be configured to mate with the elongated element.
The biasing member may include a coil spring.
Reference will now be made, by way of example only, to the accompanying drawings in which:
As used herein, any usage of terms that suggest an absolute orientation (e.g. “top”, “bottom”, “front”, “back”, etc.) are for illustrative convenience and refer to the orientation shown in a particular figure. However, such terms are not to be construed in a limiting sense as it is contemplated that various components will, in practice, be utilized in orientations that are the same as, or different than those described or shown.
Referring to
Referring back to
In the present embodiment, the first conduit 16 is further received by a second conduit 18 through a cap 22. The conduit 16 is designed to allow for the conduit 16 to move in a longitudinal direction at least partially within the second conduit 18. The first conduit 16 is moveable from a retracted position in relation to the second conduit 18 to an extended position. For example, elongated element 14 can slide between the retracted position and the extended position. When in the retracted position, the first conduit 16 is substantially entirely disposed within the second conduit 18. When in the extended position, a portion of the first conduit 16 extends from the end of the second conduit 18. It should be noted that a predefined length of the first conduit 16 remains within the second conduit 18 when in the extended position.
Referring to
In the present embodiment, the elongated element 14, and the conduits 16 and 18 have a peanut shaped cross section as shown in
Variations of the telescoping luggage handle 10 are contemplated. In particular, it will now be appreciated, with the benefit of this description, that the telescoping luggage handle can include any number of conduits that can be used as telescoping sections nested within a larger conduit. For example, in the embodiment shown in
Moreover, although the embodiment of
Referring to
Referring to
Referring to
The stabilizer 100 further includes at least one biasing member 110. In the present embodiment, as shown in
In the present embodiment, the biasing member 110 applies a perpendicular force to the surface of the narrow portion 42 of the elongated element 14. By applying this force, the flexible portion 130 is urged toward the elongated element 14 such that the flexible portion will engage both the surface of the narrow portion 42 and the surface of the angled portion 44. Therefore, by having elongated element 14 in the shape shown in
It is to be understood that the biasing member 110 is not particularly limited to any material or design and that several variations are contemplated. For example, in the present embodiment, the biasing member 110 is a clip spring. The clip spring can be manufactured from various plastics or metals. Alternatively, the biasing member can also be a rubber band. In yet another embodiment, it is also contemplated that the biasing member is embedded within the cap 20.
It will now be appreciated, with the benefit of this specification, that a stabilizer will be effective at restricting lateral movement of the elongated element 14 relative to the conduit 16. Therefore, in one embodiment, it is possible that a telescoping luggage handle includes a single stabilizer. However, in another embodiment, a second stabilizer 200 can be added to further restrict lateral movement of the elongated element 14 relative to the conduit 16.
Referring to back to
The second stabilizer 200 includes a biasing member 210. The biasing member engages the flexible portion 230 of the cap 30. The biasing member urges the flexible portion 230 toward the inner wall of conduit 16. By urging the flexible portion 230 toward the inner wall of conduit 16, the stabilizer 200 effectively holds the elongated element 14 steady within the conduit 16 to restrict lateral movement.
In the present embodiment, the biasing member 210 applies a perpendicular force to the inner wall surface of the narrow portion 42 of the conduit 16. By applying this force, it will now be appreciated that the flexible portion 230 is urged toward the inner wall of the conduit 16 such that the flexible portion 230 will engage both the inner wall surface of the narrow portion 42 and the inner wall surface of the angled portion 44. Therefore, by having the conduit in the shape shown in
It is to be understood that the biasing member 210 is not particularly limited to any material or design and that several variations are contemplated. For example, in the present embodiment, the biasing member 210 is a coil spring. The coil spring can be manufactured from various plastics or metals, such as stamped steel. Alternatively, the biasing member can also be a spring wire. In yet another embodiment, it is also contemplated that the biasing member is embedded within the cap 30.
Although only two stabilizers have been described, it will now be appreciated, with the benefit of this description, that any number of stabilizers can be added to restrict lateral movement of the elongated member 14 in relation to the conduit 16. For example, it is to be understood that the stabilizers 100 and 200 are generally positioned at opposite ends of the predefined length that the elongated element 14 remains within said conduit. Therefore, further stabilizers can be disposed between the stabilizers 100 and 200. Alternatively, it is also contemplated that other stabilizers can extend beyond the predefined length. For example, it is contemplated that a third stabilizer can be extended deeper in to the conduit to provide further stabilization.
In addition, it will also now be appreciated, with the benefit of this specification, that the second stabilizer 200 will also be effective at restricting lateral movement of the elongated element 14 relative to the conduit 16. Therefore, in one embodiment, a telescoping luggage handle can only include a single stabilizer such as stabilizer 200 or 600.
In addition to restricting the lateral movement of the elongated element 14 in relation to the conduit 16, some embodiments can also use the stabilizers 100 and 200 to restrict the longitudinal movement of the elongated element 14 between a retracted position and an extended position. Longitudinal movement includes movements of the elongated element 14 along the longitudinal axis of the conduit 16. For example, moving from a retracted position, where the elongated element 14 is substantially entirely disposed within the conduit 16, to an extended position, where only a predefined length of the elongated element 14 is disposed within the conduit 16, is a longitudinal movement. It is to be understood that restricting the longitudinal movement of the elongated element 14 can have an added benefit of preventing the elongated element 14 from being completely removed from the conduit 16 accidentally. By increasing the a length of the elongated element 14 remaining in the conduit 16, the stability of the telescoping luggage handle is further enhanced because the effective area of contact between the elongated element 14 and the conduit 16 is increased.
In some embodiments, such as the present embodiment, a first stopping face 120 is disposed on the stabilizer 100 and a second stopping face 220 is disposed on the second stabilizer 200. As the elongated element 14 is longitudinally moved toward the extended position, the first stopping face 120 contacts the second stopping face 220. Since the stabilizers 100 and 200 are held in place that the end of the conduit 16 and elongated member 14, the longitudinal movement of the elongated element 14 relative to the conduit 16 is restricted. Other methods of restricting the longitudinal movement are also contemplated. For example, a protrusion can be disposed on the inner wall of the conduit to interact with the first stopping face 120 or second stopping face 220.
In the present embodiment, during longitudinal movement of the elongated element 14 relative to the conduit 16, the stabilizer 100 can function as a bushing to allow for smooth sliding motion of the elongated element 14 into and out of the conduit 16 through the opening in the cap 20 (i.e. between a retracted position and an extended position). The inner wall of the conduit 16 can also function as a bushing to allow the cap 30 to slide smoothly as the elongated element 14 moves into and out of the conduit 16 through the opening in the cap 20. It is to be understood that as the force exerted by biasing members 110 and 210 on the flexible portion increases, friction would increase between the elongated element 14 and the conduit 16. As friction increases, the amount of force needed to extend and retract the telescoping luggage handle 10 would increase as well. To control the friction, the amount of force exerted by the biasing members 110 and 210 can be selected by selecting biasing members 110 and 210 with appropriate spring constants and designing the stabilizers 100 and 200 to adjust the amount of force exerted by stabilizers 100 and 200.
In order to retain the stabilizer 100 in place at the end of the conduit 16, a retaining mechanism can be used. In the present embodiment, the retaining mechanism comprises a plurality of protrusions 150 and 152. The protrusions 150 and 152 are positioned to mate with openings 70 and 72 in the conduit 16. As shown in
In order to retain the stabilizer 200 in place at the end of the elongated element 14, a retaining mechanism can be used. In the present embodiment, the retaining mechanism includes protrusions 250 and 252. The protrusions 250 and 252 are positioned to mate with openings 70 and 72 in the elongated element 14. In other embodiments, other mechanisms can be used to retain the stabilizer 200. For example, a ball lock mechanism similar to the one described above can be used. In yet another embodiment, glue can be used to retain the stabilizer at the end of the elongated element 14.
It will be appreciated now that the above description focused on one elongated element and conduit pair to form a single telescoping section in telescoping luggage handle. It is contemplated that a telescoping luggage handle can involve several more telescoping sections. It is to be understood that each section of the telescoping luggage handle must be a different size. Therefore, different sized stabilizers would need to be user. For example,
In embodiments with multiple telescoping sections, it is also contemplated that the biasing members for the separate sections can be adjusted such that the force of friction between for each telescoping section is different. Adjustment can be made by selecting biasing members with a desired spring constants or by changing the design of the stabilizer. Therefore, the order by which the telescoping sections extend from the retracted position to the extended position can be controlled by selecting biasing members to apply predetermined forces in each telescoping section. In regard to the telescoping luggage handle 10 shown in
In other embodiments, the force of friction can also be adjusted by adjusting the number of stabilizers. For example, in a telescoping section where a smaller friction force is desired, a single stabilizer can be used instead of the two stabilizers described above.
Referring to
Various advantages will now be apparent. Of note is smoother and more stable sliding motion of a telescoping luggage handle is provided. The stable sliding motion is provided by using spring loaded bushings where the springs can be adjusted to optimize drag and friction of the handle instead of relying on tightly controlled tolerances when manufacturing the telescoping luggage handle to achieve the same result. Furthermore, it will be appreciated that the effective bearing surface is also increased by increasing the predefined length over overlap.
In other words, the stabilizers allow for larger tolerances in various parts that are manufactured in various sizes. In particular, by using elements which include flexible portions, such as stabilizers, it will now be appreciated, with the benefit of the specification that variations in the manufactured size will still have a predictable load. Therefore, by using the stabilizers, a constant contact between the stabilizer surface and its corresponding contact surface on the inner elongated element or conduit is maintained. Furthermore, it is understood that the constant contact occurs at all positions of the elongated element within the conduit. In addition, it is also appreciated, with the benefit of the description above, that the constant contact is also maintained through all lateral loads of the telescoping luggage handle such that when the telescoping luggage handle is pushed sideways, the stabilizer will resist the lateral motion of the elongated element relative to the conduit.
While specific embodiments have been described and illustrated, such embodiments should be considered illustrative only and should not serve to limit the accompanying claims.