Land vehicles – Skates – Wheeled skate
Reexamination Certificate
2002-09-17
2004-06-01
Johnson, Brian L. (Department: 3618)
Land vehicles
Skates
Wheeled skate
C280S011270, C280S011300, C280S011330
Reexamination Certificate
active
06742788
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a replaceable skate assembly, and more particularly to a replaceable skate assembly, wherein the base may be assembled on and detached from the bottom of the boot quickly, easily and conveniently, thereby facilitating the user using the replaceable skate assembly.
2. Description of the Related Art
A conventional replaceable skate assembly
5
in accordance with the prior art shown in
FIG. 6
comprises a boot
51
, and a base
52
mounted on the bottom of the boot
51
. The bottom of the boot
51
is provided with an aluminum alloy structure which is formed with two recesses
511
each protruded with an insertion tenon
512
which has a side face formed with an insertion hole
513
. The base
52
is provided with two mounting seats
521
each mounted in one of the two recesses
511
of the boot
51
. Each of the two mounting seats
521
is provided with a receiving chamber
522
for receiving the insertion tenon
512
. The receiving chamber
522
has a side face formed with a through hole
5220
aligning with the insertion hole
513
of the insertion tenon
512
. Each of the two mounting seats
521
is also provided with a catch plate
523
formed with a through hole
5230
. Each of the two mounting seats
521
is also provided with a safety pin
524
, a spring
525
and a bent bar
526
mounted between the receiving chamber
522
and the catch plate
523
.
In operation, the user may operate the bent bar
526
to move the safety pin
524
, so that the safety pin
524
may be inserted into and detached from the insertion hole
513
of the insertion tenon
512
of the boot
51
by the elastic action of the spring
525
. Thus, the base
52
may be mounted on or detached from the bottom of the boot
51
according to the user's requirements.
However, when the base
52
is mounted on the bottom of the boot
51
, the safety pin
524
cannot align with the insertion hole
513
of the insertion tenon
512
of the boot
51
easily, so that the base
52
cannot be mounted on the bottom of the boot
51
easily and conveniently. In addition, it is necessary to additionally provide an aluminum alloy structure on the bottom of the boot
51
, thereby complicating the procedure of fabrication, and thereby increasing the cost of fabrication.
SUMMARY OF THE INVENTION
The present invention has arisen to mitigate and/or obviate the disadvantage of the conventional replaceable skate assembly.
The primary objective of the present invention is to provide a replaceable skate assembly, wherein the base may be assembled on and detached from the bottom of the boot quickly, easily and conveniently, thereby facilitating the user using the replaceable skate assembly.
Another objective of the present invention is to provide a replaceable skate assembly, wherein the bottom of the boot is integrally formed with the boot, without having to additionally provide an aluminum alloy structure on the bottom of the boot, thereby simplifying the procedure of fabrication, and thereby decreasing the cost of fabrication.
In accordance with the present invention, there is provided a replaceable skate assembly, comprising a boot, a base mounted on a bottom of the boot, and a locking device mounted in the base, wherein:
the bottom of the boot has a first end formed with a locking recess and a second end formed with a connecting recess, the connecting recess of the boot has a side formed with a locking cavity;
the base has a first end provided with a first mounting seat and a second end provided with a second mounting seat, the first mounting seat of the base has a top provided with a locking block that may be locked in the locking recess of the boot, the second mounting seat of the base has a top provided with a mounting block that may be received in the connecting recess of the boot, the mounting block of the second mounting seat of the base has an inside formed with a closed receiving space which has a side formed with a square hole and a bottom formed with a through hole, the second mounting seat of the base has a bottom provided with a first positioning plate formed with a through hole and a second positioning plate formed with a through hole; and
the locking device includes a positioning rod, a locking pawl, and a spring, wherein:
the locking pawl is movably mounted in the receiving space of the mounting block of the second mounting seat of the base, and has a top end provided with a wedge-shaped catch block received in and protruded outward from the square hole of the receiving space of the mounting block of the second mounting seat of the base; and
the positioning rod is in turn extended through the through hole of the first positioning plate of the second mounting seat of the base, the locking pawl, the spring, the through hole of the second positioning plate of the second mounting seat of the base, and is protruded outward from the base.
REFERENCES:
patent: 2998260 (1961-08-01), Meyer
patent: 5887877 (1999-03-01), Nero
patent: 5895061 (1999-04-01), Gignoux
patent: 6015156 (2000-01-01), Pratt
patent: 6120038 (2000-09-01), Dong et al.
patent: 6145853 (2000-11-01), Croshaw
patent: 6164669 (2000-12-01), Svensson
patent: 6270089 (2001-08-01), Marechal
patent: 6334621 (2002-01-01), Chang
patent: 6382638 (2002-05-01), Lee
patent: 6572121 (2003-06-01), Shih
patent: 2003/0127830 (2003-07-01), Chang et al.
patent: 2003/0155724 (2003-08-01), Wang et al.
patent: 2003/0201614 (2003-10-01), Chi
Li Wen-Qing
Li Zi-Yang
Chan Shan-Yuan
Johnson Brian L.
Restifo Jeffrey
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