Patent Application
20210275858
The current disclosure relates to a rowing machine exercise device; and more particularly, to a rowing machine exercise device with vertical height adjustability.
It is an aspect of the current disclosure to provide a rowing machine exercise device with height adjustability in a rear-end support.
In an aspect, the rowing machine exercise device includes a rowing machine frame having a forward support base and a rear support base; a flywheel rewinder mounted to the rowing machine frame; a pull rope attached to the flywheel rewinder at a first end and attached to a pull bar at an opposite end; at least one footrest panel mounted to the rowing machine frame; and a seat mounted for reciprocating movement along the rowing machine frame towards and away from the footrest panels. The rear support base is vertically adjustable and includes an outer vertical support beam coupled to and extending down from the rowing machine frame, where the outer vertical support beam has a vertical channel extending upward therein from a bottom of the outer vertical support beam and has a latch pin hole extending through a wall of a bottom portion of the vertical support beam; an inner vertical support beam received in a telescoping manner within the outer support beam through the bottom of the outer support beam, where the inner vertical support beam has a plurality of adjustment holes uniformly spaced along a vertical line in an outer wall of the inner vertical support beam, and where the vertical line is horizontally aligned with the latch pin hole in the outer vertical support beam; a foot structure coupled to the bottom of the inner vertical support beam; a latch pin assembly mounted to the outer vertical support beam, where the latch pin assembly includes a latch pin biased to extend through the latch pin hole and any of the adjustment holes that are vertically aligned with the latch pin hole, and where the latch pin assembly includes an actuating tab that overcomes the bias to pull the latch pin from the vertically aligned adjustment hole when actuated; and a lift handle mounted to the outer vertical support beam and/or the rowing machine frame.
In a more detailed aspect, the latch pin assembly includes a lever pivotally mounted to the outer vertical support beam, where the lever has an actuating end that includes the actuating tab and an opposite engagement end that includes the latch pin. In a specific embodiment, the lever is generally Z-shaped in cross section taken along the vertical line. In such a Z-shaped embodiment, the actuating tab comprises the upper horizontal extent of the Z-shape, the latch pin comprises the lower horizontal extent of the Z-shape, and the intermediate vertical extent of the Z-shape is the portion that is connected to the pivot and to the bias. In a more detailed aspect, the lever is at least partially contained in a housing mounted to the outer vertical support beam, where the housing includes an outer wall, and where the bias is a spring positioned between the outer wall of the housing and a portion of the lever approximate the latch pin.
Alternately or in addition, the plurality of adjustment holes includes a bottom-most and a top-most hole, where the latch pin hole is vertically aligned with the bottom-most hole when the inner vertical support beam is fully received within the outer vertical support beam. Alternatively or in addition, the device includes at least five of the adjustment holes.
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A latch pin assembly 46 includes a lever 48 pivotally mounted to the outer vertical support beam 30 where the lever has an actuating end that includes an actuating tab 50 and an opposite engagement end that includes a latch pin 52. The lever 48 is pivotally mounted on a pivot pin 54 and the latch pin assembly also includes a spring 56 operative to engage the lever so that the latch pin 52 is biased into engagement with the latch pin hole 36 and one of the vertically aligned adjustment holes 40. Upward pressure on the latch pin tab 50 pivots the lever on pivot pin 54 and operates to overcome the bias of spring 56 to pull/pivot the latch pin 52 from the vertically aligned adjustment hole 40 when actuated.
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A lift handle 60 is mounted to the outer vertical support beam 30 near a top of the outer vertical support beam.
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Having described the embodiments of the current disclosure by reference to the attached drawings, it will be apparent to those of ordinary skill that modifications may be made to the embodiments without departing from the scope of any invention as recited in any of the appended claims. For example, the vertically adjustable rear support base 16 may be incorporated into different rowing machine exercise device designs not depicted in this disclosure. For example, some rowing machine exercise devices do not use a flywheel rewinder. For example, some rowing machine exercise devices utilize magnetic resistance, mechanical resistance, pneumatic resistance and the like. Further, some rowing machine exercise devices do not include a pull rope 20 attached to a rewinder. For example, some rowing machine exercise devices utilize a pair of handlebars that are each pivotally connected to the rowing machine frame and associated with some sort of resistance mechanism controlling the physical exertion required to pivot the handlebars on the rowing machine frame. Some rowing machine exercise devices may be contemplated as for home use while other exemplary rowing machine exercise devices may be contemplated for professional use. As another example, the latch pin assembly 46 may have a different orientation or arrangement so that the actuating tab may be toggled downwardly or to the side to disengage the latch pin 52, rather than toggling upward. As another example, the handle 60 may be provided on the frame 12 or may be incorporated into the outer vertical support 30 or the frame 12 as, for example, a horizontal edge (extending inward or outward) that may be gripped by a user. As another example, the inner vertical support beam 38 may extend down from the frame 12 while the outer vertical support beam may include the foot structure 41. As another example, the foot structure 41 can have any mechanical structure adapted to contact the floor and support the rear support base 16. As another example, the outer and inner vertical support beams 30/38 may have any corresponding cross sectional shape, such as rectangular (as illustrated), circular, oblong and the like.
