Buckles – buttons – clasps – etc. – Buckles – Harness
Reexamination Certificate
1998-03-02
2001-04-10
Brittain, James R. (Department: 3626)
Buckles, buttons, clasps, etc.
Buckles
Harness
C024S193000
Reexamination Certificate
active
06212740
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a fastening device for a safety belt used in escaping or mountaineering or for seat belt of a car or the like. The fastening device is fitted with the a safety belt to form a fastening loop. The fastening device can be quickly slid along the fastening loop to adjust the size thereof to suit different body dimensions. The fastening device permits a user to quickly fit the fastening loop onto his/her body and can be quickly shifted to tighten the user's body in an emergency. After being fastened and located, the biting plates of the fastening device bite the belt body to prevent the belt body from loosening so as to ensure safety.
FIGS. 1 and 2
show an escaping suspension pulley
10
installed at the porch of a building. The suspension pulley
10
is hung on a safety hook
20
fixed on the wall. Two straps
11
downwardly extend from the suspension pulley
10
. The end of each strap is formed as a fastening loop
12
tied with a substantially B-shaped adjustable fastening buckle
30
.
FIGS. 3 and 4
show two existing types of the fastening buckles, wherein in
FIG. 3
, the fastening buckle is plane, while in
FIG. 4
, the fastening buckle is curved. The fastening buckle
30
can be slid along the strap for adjusting the size of the fastening loop
12
for tightening the waist section of a user as shown in FIG.
1
. Accordingly, as shown in
FIG. 4
, the user is suspended and able to slowly move down from the porch for escaping in an emergency.
The above conventional fastening buckles
30
are freely movably fitted with the strap, while lacking a securing force. Therefore, when the fastening loop
12
tightens the waist section as shown in FIG.
1
. the fastening buckle
38
tends to slip away to enlarge the fastening loop
12
. At this time, in case the user just raises his/her both hands, the user may come loose from the fastening loop
12
to drop down.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide a fastening device for a safety belt. The fastening device is fitted with the safety belt to form a fastening loop. The fastening device can be quickly slid along the fastening loop to adjust the size thereof to suit different body dimensions. The fastening device permits a user to quickly fit the fastening loop onto his/her body and can be quickly shifted to tighten the user's body in an emergency.
It is a further object of the present invention to provide the above fastening device in which after the biting plates of the fastening device are fastened and located, the biting plates bite the belt body to prevent the belt body from loosening so as to ensure safety,
The present invention can be best understood through the following description and accompanying drawings, wherein:
REFERENCES:
patent: 553703 (1896-01-01), Cavanagh
patent: 764065 (1904-07-01), Mitchell
patent: 1436880 (1922-11-01), Keller
patent: 2012835 (1935-08-01), Stark
Hwang Bor-Sheng
Lai Sen-Jung
Yang Wu-Zhi
Brittain James R.
Browdy and Neimark
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