Land vehicles: wheels and axles – Wheel – Device for attaching wheel to axle
Reexamination Certificate
2003-02-19
2004-04-20
Stormer, Russell D. (Department: 3617)
Land vehicles: wheels and axles
Wheel
Device for attaching wheel to axle
C301S111010, C301S111060, C301S111070
Reexamination Certificate
active
06722744
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a quick-release device, and more particularly to a quick-release device for a golf cart wheel, which has a simple structure and is easy to operate.
2. Description of Related Art
Golf is a popular pastime and exercise, and multiple golf clubs are required to play golf. However, carrying many golf clubs is a heavy burden for a golfer. Therefore, most golfers use a golf cart to carry a golf bag with the golf clubs.
With reference to
FIG. 6
, the conventional golf cart in accordance with the prior art comprises a frame (
50
), a handle (
52
) and two wheels (
54
). The golf club bag is mounted on the frame (
50
), and the handle (
52
) is attached to the frame (
50
) and is pulled or pushed by the golfer. The wheels (
54
) are rotatably attached to the frame (
50
), such that the golfer can move the golf cart easily to any desired place on the golf course. To reduce space required for storing or transporting the golf cart when the golf cart is not in use, the handle (
52
) and the wheels (
54
) are always designed to be foldable relative to or detachable from the frame (
50
). A means of mounting or removing each wheel is arranged between the frame (
50
) and each wheel (
54
). The conventional means of mounting or removing each wheel comprises an axle (not numbered), a hub (not numbered) and a screw (not shown). The axle is attached to the frame (
50
), and the hub is rotatably connected to the wheel (
54
). The axle is inserted into the hub. The screw has a free end that is screwed into the hub and abuts the axle. Accordingly, the wheel (
54
) is rotatably connected to the frame (
50
) by the means of mounting or removing each wheel. When the screw is unscrewed, the axle can be released from the hub so the wheel (
54
) can be removed from the frame (
50
).
However, the operation of the conventional engaging device is troublesome because the screw must be rotated to lock or to release the conventional means of mounting or removing each wheel.
To overcome the shortcomings, the present invention provides a quick-release device to mitigate or obviate the aforementioned problems.
SUMMARY OF THE INVENTION
The main objective of the invention is to provide a means of mounting or removing each wheel of a golf cart that is easy to operate. The means of mounting or removing each wheel of a golf cart has a housing, a lock, a locking lever and a latch. The lock and the locking lever are pivotally mounted in the housing. The housing is attached to the frame of the golf cart. The latch is attached to the wheel. The latch can be inserted into and locked in the housing by the lock or released from the housing and removed from the housing. With such a means of mounting or removing each wheel of a golf cart, the wheels can be quickly and conveniently attached to or detached from the frame of the golf cart.
REFERENCES:
patent: 982745 (1911-01-01), Rice
patent: 1067367 (1913-07-01), Noster
patent: 1567638 (1925-12-01), Dean
patent: 1784330 (1930-12-01), Bowers
patent: 6024416 (2000-02-01), Chen et al.
patent: 6120106 (2000-09-01), Liao
patent: 6234582 (2001-05-01), Wu
patent: 6520598 (2003-02-01), Cheng
patent: 6523910 (2003-02-01), Lin
Bacon & Thomas PLLC
Stormer Russell D.
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