Locks – Special application – For control and machine elements
Reexamination Certificate
2001-03-09
2002-12-17
Gall, Lloyd A. (Department: 3629)
Locks
Special application
For control and machine elements
C292SDIG005, C070S370000, C070S451000, C070S466000
Reexamination Certificate
active
06494066
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a cylinder lock mounting device for mounting a cylinder lock on an automotive door panel or the like.
Such cylinder lock mounting device has been known in the prior art as disclosed in Japanese Patent Laid-Open Publication No. 7-54523. In this cylinder lock mounting device as shown in
FIG. 6
, a mounting section
110
is protrusively disposed on the outer periphery of a cylinder lock
109
, while a cylinder lock mounting hole
105
is formed on a handle base
103
, and the cylinder lock
109
is fitted into the cylinder lock mounting hole
105
from the inside (left side in
FIG. 6
) of a door. The mounting section
110
of the cylinder lock
109
and the handle base
103
are jointly fastened and fixed with a panel
101
interposed therebetween.
A guide section
113
extending to the inside of a door is formed at least on the lower edge of the cylinder lock mounting hole
105
, and a fit-in hole
114
is formed on the guide section
113
. On the lower surface of the outer periphery of the cylinder lock
109
, there is protrusively provided a hook section
115
in a retractable manner.
When the edge portion of the cylinder lock
109
is fitted in the cylinder lock mounting hole
105
along the guide section
113
, the hook section
115
on the outer periphery of the cylinder lock
109
is slid down in the retracted state and protrusively fitted into the fit-in hole
114
of the guide section
113
during the fit-in process, which prevents the cylinder lock
109
from dropping off from the handle base
103
.
This achieves provisional retainment of the cylinder lock
109
, which allows operators to jointly fasten the mounting section
110
of the cylinder lock
109
and the handle base
103
without holding the cylinder lock
109
by hand.
However, in this prior art embodiment, if strong pressing loads are applied to the cylinder lock
109
in the indoor direction after the above-described assembly of the handle base
103
and the cylinder lock
109
, the hook section
115
may be slipped out from the fit-in hole
114
on the guide section
113
because of the retractability thereof. If the hook section
115
is slipped out, the cylinder lock
109
is consequently retained in the cantilever support state only by the mounting section
110
, which may make a destruction of the cylinder lock
109
relatively easy.
SUMMARY OF THE INVENTION
In view of such problem, it is an object of the present invention to provide a cylinder lock mounting device which prevents application of cantilever loads on the mounting section and which is free from destruction if strong pressing loads are applied to the cylinder lock to implement improved anti-theft functionality.
In order to accomplish the above object, the first aspect of the invention comprises a panel having a cylinder lock insert hole and a cylinder lock mounting hole; a cylinder lock provided with an engaging projection and a mounting section on an outer peripheral surface thereof; and an outer handle device to be fixed on an outer surface of the panel by a fastener(e.g., bolt, rivet, pin, nail or the like) inserted through the mounting section of the cylinder lock and the cylinder lock mounting hole of the panel from an inside of the panel, wherein the engaging projection of the cylinder lock is engaged with a peripheral edge of the cylinder lock insert hole on an outside of the panel by inserting and rotating the cylinder lock in the cylinder lock insert hole of the panel.
According to the first aspect of the invention, the cylinder lock mounting device has the engaging projection which is engaged with the peripheral edge of the cylinder lock insert hole on the outside of the panel, so that even if strongly pressed down from the front side of the cylinder lock toward the inside of panel, the cylinder lock mounting device is free from application of cantilever loads to the mounting section because the engaging projection engaged with the panel resists the press force, which results in the difficulty of destruction on the cylinder lock and implements improved anti-theft functionality.
In the second aspect of the invention, the engaging projection and the mounting section of the cylinder lock are covered with the outer handle device.
According to the second aspect of the invention, the engaging projection and the mounting section of the cylinder lock are covered with the outer handle device, so that they are not visible from the outside. Consequently, it is impossible to attack and destroy the engaging projection and the mounting section, which makes it possible to implement improved anti-theft functionality.
In the third aspect of the invention, the mounting section of the cylinder lock is provided on a part of a flange section formed on an outer peripheral surface of the cylinder lock.
According to the third aspect of the invention, the mounting section of the cylinder lock is provided on a part of the flange section formed on the outer peripheral surface of the cylinder lock. This flange section retains the cylinder lock stably, and at the same time the cylinder lock is hold on the panel by the engaging projection and the flange section, so that if the outer handle device should be destructed, it is impossible to rotate the cylinder lock, which implements high anti-theft functionality.
In the forth aspect of the invention, a retainment projection which penetrates through the panel and projects from an inner surface of the panel is formed on the outer handle device, a flange section is formed on an outer peripheral surface of the cylinder lock, and the retainment projection is engaged with a part of the flange section of the cylinder lock by inserting and rotating the cylinder lock in the cylinder lock insert hole of the panel.
According to the fourth aspect of the invention, the retainment projection is engaged with the part of the flange section of the cylinder lock with the panel interposed between the outer handle device and the flange section of the cylinder lock, so that the outer handle device is provisionally retained to the panel and not surfaced from the panel.
In the fifth aspect of the invention, a rotation of the cylinder lock is stopped when the retainment projection of the outer handle device is engaged with the flange section of the cylinder lock, and at this time a position of the mounting section on the cylinder lock corresponds with a position of cylinder lock mounting hole on the panel.
According to the fifth aspect of the invention, the position of the mounting section on the cylinder lock corresponds with the position of the cylinder lock mounting hole on the panel when the retainment projection is engaged with the flange section, so that the fastener can be inserted into the mounting section on the cylinder lock and the cylinder lock mounting hole on the panel without the step of special positioning, which implements high assembling efficiency.
REFERENCES:
patent: 452588 (1891-05-01), Woolaston
patent: 1024371 (1912-04-01), Soley
patent: 1408477 (1922-03-01), Schonwald
patent: 1832362 (1931-11-01), Cullinan
patent: 2086198 (1937-07-01), Weston
patent: 2506642 (1950-05-01), Jacobi
patent: 5297405 (1994-03-01), Manning et al.
patent: 5987942 (1999-11-01), Ichinose
patent: 5987943 (1999-11-01), Verga et al.
patent: 7-54523 (1995-02-01), None
Gall Lloyd A.
U-SHIN LTD.
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