Dummy trim with an improved resistance to pull

Details Dummy trim with an improved resistance to pull Dummy trim with an improved resistance to pull

2002-02-11

2004-04-13

Sandy, Robert J. (Department: 3677)

Closure fasteners

Knob rose plates

C016S412000, C292S348000, C292S353000, C292SDIG005, C292SDIG006, C070S224000, C070S451000

Reexamination Certificate

active

06719338

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a dummy trim with an improved resistance to pull.
2. Description of the Related Art
FIG. 5
of the drawings illustrates a conventional dummy trim that is mounted to a door
10
for pull only. Namely, the dummy trim provides no locking function. The dummy trim comprises a sleeve holder
25
to be fixed to a door
10
such as by fasteners
26
extending Through apertures
27
formed in the sleeve holder
25
, a sleeve
23
having an end held by the sleeve holder
25
, a rose
22
, and a lever
21
securely attached to the other end of the sleeve
23
. A user may pull the lever
21
for opening the door
10
. When engaging the sleeve
23
and the sleeve holder
25
, both of them are drilled to farm aligned radial holes
31
and
32
, and a screw or pin
30
is inserted into the radial holes
31
and
32
to thereby secure the sleeve
23
and the sleeve holder
25
together. A protective sleeve
24
may be mounted around the sleeve holder
25
. However, the pulling force applied to the lever
21
exerts a shear force to the pin
30
and thus loosens the sleeve
23
after a period of time. Further, drilling of the radial holes
31
and
32
and insertion of the pin
30
are troublesome and cause an increase in the cost.
SUMMARY OF THE INVENTION
An object of the present invention is to provide dummy trim with an improved resistance to pull.
A dummy trim in accordance wit the present invention comprises a mounting plate to be fixed to a door, a sleeve holder securely mounted to the mounting plate and including a peripheral wall, a sleeve including a first end mounted in the peripheral wall of the sleeve holder, and a lever securely attached to a second end of the sleeve to move therewith. The first end of the sleeve includes a slot having an edge facing the lever. The peripheral wall of the sleeve holder includes an integral stop extending into the slot of the sleeve and abutting against the edge of the slot.
Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.


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