Motor vehicles – Power – Having specific motor-to-body-frame relationship
Reexamination Certificate
1999-07-26
2001-06-26
Mai, Lanna (Department: 3611)
Motor vehicles
Power
Having specific motor-to-body-frame relationship
C180S292000, C180S298000, C248S674000
Reexamination Certificate
active
06250413
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a device for securing a motor to the frame of a go-cart.
BACKGROUND
In go-carts, the motor is bolted to a motor mount which is in turn bolted to the frame. In order to remove the motor, the entire motor mount must also be removed. This chore requires undoing several bolts, which are all positioned underneath the motor mount, which means that to have clear access to the bolts, the go-cart must be elevated. There is a need for a simpler and faster way of changing out motors for go-carts.
SUMMARY OF THE INVENTION
According to its major aspects and broadly stated, the present invention is a motor mount for a go-cart that allows the motor to be removed much more quickly and easily. The present motor mount has base and body that operate as a clamp to secure a motor to the go-cart frame, and a mounting plate that operates as an adaptor secured to the motor in a manner that allows the motor to be easily and quickly attached to or removed from the body. The mounting plate has a plurality of mounting bolts thereon for the permanent attachment of a motor, and a receiver that allows it to be coupled to the body quickly but securely. The mounting plate, once attached to the motor, can remain with it.
The motor mount is clamped to the frame of the go-cart by a single bolt that is easily accessed from above. Undoing this bolt unclamps the motor mount from the go-cart frame.
The plate is secured to a body using a track formed in the top surface of the body and a receiver on the underside of the mounting plate formed to slide within the track. A simple locking mechanism secures the receiver of the mounting plate in position within the track. Unlocking the mounting plate requires only a partial rotation of a lock screw to free up the mounting plate.
The body and base are bolted at one end and pivotally attached at the other end so that, once the first end is unbolted, the base is free to swing away from that end and thereby allow the motor mount to be pulled free of the go-cart frame.
A major advantage of the present invention the use of a mounting plate as an adaptor of the motor to the rest of the motor mount. This mounting plate is configured to be quickly and easily attached and detached from the motor mount so that the motor, with its more or less permanently attached mounting plate, can be removed from the go-cart in a few seconds without having to elevate the go-cart.
Another major advantage of the present invention is the ability to remove the motor mount itself by undoing a single bolt, which is removed without having to access the underside of the mount. The present motor mount is made in the form of a clamp with one end of its two portions, the base and the body, pivotally attached and with enough play between the two portions to allow it to be pulled free of the frame of the go-cart.
Still another advantage of the present invention is that the user can set up the mounting plate so that the motor, when mounted, will be in a position preferred by the driver. This advantage stems from the way the receiver is attached to the mounting plate.
Still another advantage of the present invention is the way in which the receiver fits into the track on the body and locks to it. This fit is designed to hold the motor securely to the motor mount but to allow the motor to be removed very quickly, simply by a partial turn of a locking screw and a small lateral movement of the mounting plate.
Other features and advantages of the present invention will be apparent to those skilled in the art from a careful reading of the Detailed Description of Preferred Embodiments presented below and accompanied by the drawings.
REFERENCES:
patent: 3107889 (1963-10-01), Peterson
patent: 3420480 (1969-01-01), Matson
patent: 3799283 (1974-03-01), Freber
patent: 4097012 (1978-06-01), McIntyre
patent: 4098477 (1978-07-01), Perez
patent: 4238104 (1980-12-01), Hamilton
patent: 5022668 (1991-06-01), Kenny
patent: 5167396 (1992-12-01), Burba et al.
patent: 5714815 (1998-02-01), Fritzinger et al.
patent: 5799923 (1998-09-01), Carr et al.
patent: 5833205 (1998-11-01), Lindbeck
Mai Lanna
Mann Michael A
Nexsen Pruet Jacobs & Pollard
Phan Hau
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