Note: Descriptions are shown in the official language in which they were submitted.
Thumb Operated Door Lock Assembly
SUMMARY OF THE INVENTION
The new grip-set uses the traditional thumb-operated exterior thumb lever,
which retracts
the multi-point latching gear. The in-door latch and deadbolt gear operators
are already patented
by G-U Germany. The new total system and the new elements are the subject of
this invention.
Features of the invention include:
1. Multi-point door locking system with thumb operated retraction
2. Simultaneous retraction of the deadbolt when the interior lever is
operated (panic
mode)
3. Reduced warping of exterior entry door panels
4. Independent deadbolt operation from multi-point gear operation.
These and further and other objects and features of the invention are apparent
in the
disclosure, which includes the above and ongoing written specification, with
the drawings.
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BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is an exploded perspective view of the thumb operated door lock.
Figures 2A, 2B and 2C show details of the limited engagement interior hub
collar and
limited engagement drive spindle shown in Figure 1.
Figure 3 is a door-side rear elevational view of the exterior latch withdrawal
assembly
and the limited engagement drive spindle shown in Figures 1 and 2.
Figure 4 is a right side elevational view of the exterior latch withdrawal
assembly and
limited engagement drive spindle, shown in Figures 1-3.
Figure 5 is a perspective view showing the back, right side and top of the
exterior latch
withdrawal assembly and limited engagement drive spindle shown in Figures 3
and 4.
Figure 6 is a detail of the limited engagement drive spindle shown in Figures
1-5.
DETAILED DESCRIPTION OF THE DRAWINGS
In Figures 1 and 2A, 2B and 2C, a multi-point latch and deadbolt system 50 is
shown
mounted in an edge 82 of a door 80. Door 80 is pulled shut allowing spring
mounted latches 52
to be pushed inward and then to extend outward into receivers in a door jamb
from housing 54 of
the G-U Hardware Eagle Multi-Point Gear Assembly 18, as shown, for example, in
Patent
6,389,855. A deadbolt is extended through opening 56 by turning a key 58 in
key lock cylinder
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3 or by turning interior locking knob 14. Extending the deadbolt also operates
within the
patented assembly 18 to prevent unintended inward movement of the latches,
holding the latches
52 in extended position.
The main body 60 of the latch and deadbolt Multi-Point Gear Assembly 18 holds
the
latch and deadbolt operator for extending and withdrawing a deadbolt through
opening 56.
Auxiliary upper and lower bodies 62 and 64 and main body 60 hold the operator
mechanisms for
extending, locking and withdrawing the upper, lower and central latches 52.
Turnable receiver 66 in main body 60 of assembly 18 turns an operator to
withdraw
latches 52. Turnable receiver 68 in body 60 turns an operator in assembly 18
to move the
deadbolt out or in through opening 56. When the deadbolt is extended, assembly
18 prevents
inward movement of the latches 52, providing a four-point lock. Withdrawing
the deadbolt
permits inward movement of the latches 52 by thumb lever 1 or interior lever
15. The assembly
18 may be configured so that the deadbolt extension does not prevent inward
movement of the
latches. Interior lever 15 simultaneously withdraws the latches and deadbolt.
An exterior escutcheon plate 2 and grip handle assembly is mounted on the
outside 84 of
door 80. A thumb lever 1 is mounted directly above the fixed grip handle 86.
Bolt 90 extends
from the inner side of plate 2 to secure the top of handle 86. The bottom of
handle 86 is secured
to a bottom plate 88 by a long screw 92, which extends through an interior cup
94, the door 80, a
sleeve 96 and plate 88. Screw 92 engages nut 98 secured to the bottom of
handle 86.
Thumb lever 1 has an extension 100 which extends through opening 101 in plate
2.
Thumb lever 1 is pivoted on a pin extending through a hole in extension 100 on
the inside of
plate 2. A linear to rotary motion converter, for example a rack connected to
extension 100 and a
pinion connected to the rack, turn the limited engagement drive spindle 4 and
its extended tongue
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104 when thumb lever 1 is depressed. Tongue 104 fits diagonally through the
square opening 67
of receiver 66, and a square cross section base 190 of spindle 104 fits in the
square opening 67 in
receiver 66 to turn the operator in assembly 18 for withdrawing latches 52.
Key 58 fits through an outer case 110 which holds key lock cylinder 3
partially inside
plate 2 and door 80. Tongue 102 extends from lock cylinder 3 through the
rectangular opening
in receiver 68 and turns the receiver to move the deadbolt operator in
assembly 18 to extend or
withdraw the deadbolt.
Key cylinder mounting screw supports 5 and lever drive hub screw supports 6
fit through
the door 80 and through openings 106 and recesses 108 in the main body 60 of
assembly 18 to
receive interior mounting screws 8, which secure interior mounting support
plate 7 and exterior
escutcheon plate 2 to each other and to the door, strengthening the door.
Limited engagement interior hub collar 9 has a square cross section extension
119 which
fits in the square opening 121 in interior latch operating lever 15 and is
held there by lever
mounting set screw 16.
As shown in Figures 2A and 2B, collar 9 has a main cylindrical body 120 with
outer part
122 and inner part 124 separated by a flange 126. Flange 126 on collar 9 is
received in
complementary recess 127 in plate 10. The body 120 and its extension and outer
and inner parts
rotate together. The outer part 122 has a generally radially opposite sectoral
figure 8 shaped
recesses 128 which receives tongue 104 of limited engagement drive spindle 4.
The sectoral
recesses permit interior lever 15 to be raised, turning the body 120 so that
radial faces of the
recesses 128 are spaced from tongue 104 to prevent latches 52 to be withdrawn
by moving
thumb lever 1. Thus, thumb lever 1 is disabled when interior lever 15 is
raised. Sectoral
recesses 128 prevent turning of the element 120 by the thumb lever 1
sufficiently to raise plate
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160 and withdraw the deadbolt.
Diametrically opposite slots 129 in the cylindrical body inner part 124
receive projections
132, 142 which extend inward from rotating elements 130 and 140 in interior
simultaneous
retraction assembly 11.
Assembly 11 has two plates, interior simultaneous retraction inside base plate
10 and
interior simultaneous retraction outside base plate 12. Plates 10 and 12 are
held together by lugs
152 fitted into slots 154. Short assembly screws 17 are connected through
openings in the plates
and 12 to threaded openings or nuts in interior mounting support plate 7 to
hold plates 10 and
12 assembled on the support plate 7.
Element 130 has a segmental gear 134. Gear 134 engages a gear on an axle (not
shown)
extending between large openings 133 and 135 in plates 10 and 12 to provide
smooth operation
of the interior simultaneous retraction assembly 11.
Element 130, sliding plate 160 and lever 169 turn connector 170, tongue 102
and receiver
68 to withdraw the deadbolt, if it is extended, when the interior operating
lever 15 is turned to
withdraw latches 52. Upper edges 136 of element 130 engage lower edges 162 of
sliding plate
160 and lift the sliding plate when lever 15 turns element 130. Upper curved
edges 164 of
sliding plate 160 engage edges 166 of lock turner lever 169 in interior
simultaneous retraction
assembly 11. When the interior operating lever 15 is turned to open the door,
element 130 is
rotated. One of its edges 136 lifts an edge 162 and sliding plate 160. An
upper edge 164 of
sliding plate 160 moves an edge 166 and lock lever 169 to simultaneously turn
receiver 68 to
withdraw the deadbolt, as lever 15 withdraws latches 52.
Springs 180 keep sliding plate 160 in contact with element 130 and keep
element 130
level. Springs 182 on element 140 keep element 140 centered, keeping interior
operating lever
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15 horizontal and latches 52 in outward positions.
Square opening 168 of lock lever 169 in assembly 11 engages the square
extension 172
of lock connector 170. The same square extension 172 is received in the square
axial opening
184 in the interior locking knob 14.
The outer facing end 174 of connector 170 has a rectangular slot opening 178
to receive
tongue 102 which extends from key lock cylinder through turnable lock
operating receiver 68
and into opening 178.
As shown in Figures 2A-6, the limited engagement drive spindle 4 has a square
cross
section base 190 which is mounted in a turning mechanism 192. The turning
mechanism
converts the linear arcuate motions of the thumb lever 1 and its extension 100
to rotary motion
for turning drive spindle 4. The linear to rotary motion may be provided by a
rack gear attached
to the inner end of the thumb lever extension 100 and a pinion gear having a
central recess for
receiving end 194 of spindle 4. Spring clip 196 fits in groove 198 of the
spindle to hold the
spindle in the turning assembly 192. Lever drive hub screw supports 6 are
shown connected to
the casing 200, which is attached to outside exterior escutcheon plate 2 with
screws 8.
Casing 200 has a body 202 and a cover 204 which is attached to the body by
screws 206.
Ears 208 on the body 202 have openings 210 for screws to secure the turning
assembly 192 to
plate 2.
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In the drawings, the following numbers refer to the following elements.
Item Number Description
1 Thumb Lever
2 Exterior Escutcheon Plate & Grip Handle
3 Key Cylinder
4 Limited Engagement Drive Spindle
Key Cylinder mounting screw supports
6 Lever Drive Hub screw supports
7 Interior Mounting Support Plate
8 Interior Mounting Screws
9 Limited Engagement Interior Hub Collar
Interior Simultaneous Retraction Inside Base Plate
11 Interior Simultaneous Retraction Assembly
12 Interior Simultaneous Retraction Outside Base
Plate
13 Interior Escutcheon Plate
14 Interior Locking Knob Assembly
Interior Operating Lever
16 Lever Mounting Set-Screw
17 Interior Simultaneous Retraction assembly screws
18 G-U Hardware Eagle Multi-Point Door Gear Assembly
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While the invention has been described with reference to specific embodiments,
modifications and variations of the invention may be constructed without
departing from the
scope of the invention.
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