Patent Application
20220348048
The present disclosure relates to a tow bar for towing a shopping cart with a motorized utility cart or scooter.
There is a rapidly growing market for personal or one person motorized utility carts or scooters. Most frequently such scooters have been used by people who have been permanently or temporarily incapacitated. Since such carts are designed for inside use, they are of a width which enables them to pass easily through normal door openings. Thus, they can easily be used for navigating through stores and shopping malls.
A problem which occurs while shopping is the lack of cargo space on the scooter. Numerous attempts to provide for cargo space on scooters have been made, the attempts typically involve positioning a basket on the scooter, the basket providing very limited cargo space.
A tow bar for connecting a motorized utility cart to a shopping cart according to one disclosed non-limiting embodiment of the present disclosure includes a second tow bar segment pivotally attached to the first tow bar segment at a first hinge that defines a first axis; a third segment pivotally attached to the second tow bar segment at a second hinge that defines a second axis parallel to the first axis; an accessory connection attached to the first tow bar segment, the accessory connection provides for attachment to the motorized utility cart; a clamp attached to the third segment, the clamp for attachment to the shopping cart; and a ball joint that permits the clamp to articulate with respect to the second hinge.
The foregoing features and elements may be combined in various combinations without exclusivity, unless expressly indicated otherwise. These features and elements as well as the operation thereof will become more apparent in light of the following description and the accompanying drawings. It should be appreciated that however the following description and drawings are intended to be exemplary in nature and non-limiting.
Various features will become apparent to those skilled in the art from the following detailed description of the disclosed non-limiting embodiment. The drawings that accompany the detailed description can be briefly described as follows:
The shopping cart 14 generally includes a frame 20 supported on wheels 22. The frame 20 includes a lower shelf that includes a horizontal forward member 24. Essentially all shopping carts have these general features. The horizontal forward member 24, being elongated and running transverse to the direction of travel of the cart 14 is the designated attachment point for the tow bar 100. Alternatively, the tow bar 100 may be attached to a framing member 200 (
The tow bar 100 generally includes a first tow bar segment 110, a second tow bar segment 112 and a third tow bar segment 114. The first tow bar segment 110 is pivotally attached to the second tow bar segment 112 at hinge 120 that hinges about an axis A (also shown in
The hinges 120, 130 may freely hinge about their respective axes, or in the alternative, may include locking pins 122, 132 that permit the hinges, 120, 130 to be locked at a desired angle. That is, the locking pins 122, 132 may be, for example, pressed to overcome a spring force then released when the segments are at a desired angle thereby fixing the angle of the relative segments. Alternatively, the locking pins 122, 132 may be threaded fasteners with handles that permit the selective hinging or locking of the respective segments. The angles of the tow bar 100 may be adjusted to allow for smooth articulated towing of the shopping cart 14.
The first tow bar segment 110 includes an accessory connection 150 that mounts to the accessory mount 16. The accessory connection 150 may be attached to the accessory mount in a telescoping interface and retained via a pin 152 or other fastener.
The third tow bar segment 114 includes a ball joint 160 and a clamp 170. The ball joint 160 permits the clamp 170 to articulate with respect to the hinge 130. The clamp 170 in one embodiment, can be configured, for example, as a threaded clamp with jaws 172, 174 (
Although the different non-limiting embodiments have specific illustrated components, the embodiments of this invention are not limited to those particular combinations. It is possible to use some of the components or features from any of the non-limiting embodiments in combination with features or components from any of the other non-limiting embodiments.
The foregoing description is exemplary rather than defined by the limitations within. Various non-limiting embodiments are disclosed herein, however, one of ordinary skill in the art would recognize that various modifications and variations in light of the above teachings will fall within the scope of the appended claims. It is therefore to be appreciated that within the scope of the appended claims, the disclosure may be practiced other than as specifically described. For that reason the appended claims should be studied to determine true scope and content.
The present disclosure is a continuation-in-part of U.S. patent application Ser. No. 17/065,314, filed Oct. 7, 2020, whose disclosure is hereby incorporated by reference in its entirety into the present disclosure.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 17065314 | Oct 2020 | US |
| Child | 17866863 | US |
