Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
i~23~i~
BACKGROUND OF INVENTIO~:
(a) Field of the Invention
~he present invention relates to a lockin~
device and wherein a stop member is removably secured
to a fastener member which is adhesively secured to a
flat surface whereby when the stop member is secured
to the fastener a displaceable member such as a door
or a window is arrested from displacement.
(b) Description of Prior Art
A multitude of locking devices have heretofore
been provided whereby to arrest a displaceable member
such as a door or a window. However, such devices
re~uire tools whereby to install them or else are bulky
and difficult to install. They also cause damage to window
or door frames when installing or in use. Still further,
such locking devices do not have the flexibility of
permitting a window pane or a door to be opened a specific
distance and then arrested, which distance is determined
at will by the user and which is advantageous to permit
2~ the entry o~ fresh air into an enclosure. Still further,
prior art locking devices are not versatile and are
usually constructed for a single specific use.
SUMMARY OF INVENTION:
It is a feature of the present invention to
provide a locking device to arrest a displaceable member
such as a door or a window and which substantially over-
comes all of the above disadvantages o~ the prior art.
Accordingly, the locking device of the present
invention does not require any tools for installation,
does not cause any damage to door frames or window frames,
is easy to install, and is versatile in i~s use.
- 2 -
~Z3~
According to a further broad aspect of the
present invention there is provided a locking device
to arrest a displaceable member such as a door or a
window. The device comprises a stop member having a
bottom and an angulated abutment wall extending
thereabove. ~he abutment wall is inclined rearwardly
from an end of the bottom wall. A fastener member
having an adhesive securement means is provided to
attach same to a substantially flat surface.
Attachment means is provided to removably interconnect
the stop member to the fastener member.
BRIEF DESCRIPTIO~ OF_DRAWINGS:
~ preferred embodiment of the present inven-
tion will now be described with reference to the
example thereof as illustrated in the accompanying
drawings, in which:
FIGURES 1 and 2 are perspective view showing
the locking device of the present invention as secured
to a window pane,
FIGURE 3 is a side view of the stop member,
FIGURE 4 is an end view of the stop member
showing the abutment wall,
FIGURE 5 is a bottom view of Figure 3,
FIGURE 6 is another side view of the stop
member,
YIGURE 7A is a bottom view of the fastener
member withou-t the adhesive strip,
FIGURE 7B is a side view of Figure 7A
showing the adhesive strip secured to the bottom face
o~ the fastener member,
-- 3 --
36~
~IGURE 8 is an exploded view of a section of
Figure 7B,
FIGURE 9 are functional section views showing
the position retention means between the stop member and
the fastener member, and
FIGURES 10A through 10E are schematic views
showing the use of the loc~ing device as applied to
sliding doors, sliding windows, and hinge doors.
~ESCRIPTION OF PREFERRED ~MBODIMENTS:
A preferred embodimen~ will now be described
with reference to Figures 1 to 5 where there is generally
shown at 10 the loc~ing device of the present invention.
The locking device comprises a stop member 11 which is
a triangular block having a flat rectangular bottom wall
12, flat parallel side walls 13 and two sloping top walls
14. Each of the top walls constitutes an abutment wall.
As shown in Figures 3 to 5, the abutment wall is a flat
surface which is covered with a shock-absorbing material
15, such as rubber or other suitable soft material, and
has a plurality of spaced apart ribs 16 extending parallel
to one another and longitudinally of the abutment wall.
Both abutment walls are inclined rearwardly from an end
of the bottom wall 12 to an apex 17.
A fastener member 18 is slidingly received
within a slot 19 formed in the bottom wall 12 and extend-
ing thereacross from the opposed side walls 13. The
slot 19 has a flat bottom wall and end walls 20 having
a dovetail shape whereby to receive the wedge shaped ends
21 of the fastener member in close frictional fit therein.
Of cour~e, it is conceived that the end walls of the slot
-- 4 --
119~23~
19, instead of being dovetailed, could have a rectangular
recess therein to receive a rectangular rib rom the end
wall of the fastener member to achieve the same purpose.
Furthermore, instead of the slot 19 being provided in the
bottom wall of the stop member 11, it could be provided
in the top wall of the fastener member and a protrusion
could be provided in the bottom wall 12 of the stop
member to be received in the slot of the fastener to
achieve the same result. This type of an arrangement
would ~e obvious to a person skilled in the art.
Referring now to Figures 5, 7A, 7B and 8, it
can be seen that the fastener member is provided with an
adhesive securement means in its lower surface 23. The
adhesive securement means herein shown is an adhesive
tape 22 having an adhesive on both faces thereof. The
lower face 23 of the adhesive tape is provided with the
usual peel-off wax sheet 24 which protects the adhesive
surface until it is time to secure the fastener member
18 to a substantially flat surface, such as a glass pane
25, as shown in Figures 1 and 2.
It is pointed out that instead of an adhesive
tape 22, an adhesive layer could be simply sprayed on
the bottom surface 23 of the fastener member and the
transverse slots 26 may be eliminated.
As clearly shown in Figures 7A and 8, a plura-
lity of transverse slots 26 are disposed transversely
across the bottom surface 23 of the fastener member
between side flanges 23' which act as guides to position
the adhesive tape 22 on the bottom surface 23. The
slots 26 also extend parallel to one another. The purpose
of the slots is to receive a beaded portion 27 of the top
surface 28 vf the adhesive tape 22 when a pressure is
~l~Z3~
applied hetween the ~ottom surface of the adhesive layer
as a result of a force applied (as shown at A in Figure
6) to one of the sloping walls 14 whereby to enhance the
gripping action of the bottom wall 23 of the ~astener
member to the top surface 28 of the tape and further
enhance the adhesiveness of the bottom wall 24 of the
tape on a flat surface to which it has been attached.
Thus, when a pressure is applied in the direction of
arrow A the transferred force as illustrated by vector B
will decompose into vector C and D. However, due to the
angle of the abutment wall 14 the transferred force
along vector C will always be greater than the force
along vector D. The direction of the force along vector
C causes the adhesion of the fastener member to become
stronger and resist displacement of the stop member 11.
Referring now to Figure 9 there is shown an
example of the position retention means provided between
the stop member 11 and the fastener member 18. The
position retention means is herein shown as provided by
a slightly elevated formation 30 provided in the slot
bottom wall 19. This formation has inwardly angulated
side walls 31 to facilitate the passage of a fastener
member thereover. A correspondingly shaped cavity 32
is provided in the flat top wall 33 of the fastener
member 1~ and is also provided with slightly outwardly
shaped side walls 34 to facilitate the removal of the
fastener member from engagement with the elevated
formation 30. Thus, it can be seen from the illustrations
of Figure 9 that as the fastener member 18 is slid into
the slot 19 the stop member is engaged in position on
the fastener member and requires a slight force in the
~g236~
direction of the slot for disengagement. This sliding
attachment means prevents the stop member 11 from
disengaging by gravity when it is mounted in a..position
on a window pane such as illustrated at 40 in Figure 10A,
as without the sliding attachment means the stop member
would fall downwardly by gravity.
The use of the locking device will now be
described with reference to Figures 1, 2, 10A to 10D.
As shown in Figures 1 and 2 there is provided two window
panes 50 and 60 each comprised of a glass pane 25 and 25'.
One of these panes or both of them are slidable on a
respective track 51 and 61 respectively provided b~ a
channel member 70. In order to arrest any of these two
panes from sliding on their respective tracks, all that
is necessary to do is to slide the fastener member into
the stop member and remove the peel-off protective
surface 24 from the adhesive layer on the
bottom surface 23 of the fastener member. The
locking device is then simply positioned against the
window pane 25 with an end 52 of the locking device
being positioned against the inner edge 53 of the frame
54 of the pane 25. The thickness of the fastener member
18 is thinner than the distance between the ou~er face
55 of the frame 54 and the surface of the glass 25.
Accordingly, when the stop member 11 is slid off the
fastener member 18 the frame 62 of the window pane 60
will be able to slide on its track 61 across the window
pane 25 or vice versa. With the stop member in position
as shown in Figure 1 none of the frames can be slid on
their tracks 61 a~ the end edge 63 of the window frame
3~i~
62 will strike against the angulated abutment wall 14
and apply a force to the stop member in the direction
of arrow A, as shown in Figure 6. The shock-absorbing
material 15 also protects the side edge 62 of the
window frame from being damaged.
Referring now to Figure lOC, there is shown
the locking device 10 secured to a pane 70 in a window
structure wherein the windows are slidable vertically
into the frame 71. Thus,. the top frame 72 of the lower
pane 73 is arrested from moving up by locating the
stop member immediately adjacent the top frame 72.
Alternatively, the stop member could be positioned at
location 74 shown in phantom line whereby to permit the
lower pane 73 to be raised a limited distance whereby
to admit fresh air into an enclosure but leaving an
opening sufficiently small to prevent a person from
entering into the enclosure. Similarly, as shown in
Figures lOA, lOB and lOE, the locking device 10 may be
secured to a pane of a sliding door 80 or sliding window
85. Partial opening is also provided as shown in Figure
lOB by locating the locking device a predetermined
distance on the glass pane 81 of the sliding door 80
whereby to provide ventilation of the enclosureO It is
pointed out that the locking device may be mounted at an
any operative convenient location on the panes.
Figure lOD shows another application w'nerein
the locking device is secured to a floor surface 91
adjacent a hinge door 90 whereby when the stop member
is secured to the fastener member the door will be
arrested from opening in the direction of arrow 92.
-- 8 --
~g236~
The fastener member is sufficiently thin to permit the
door to be swung thereover when the stop member 10 is
removed from securement thereto.
It is conceived that other applications of
the locking device are possible and that obvious modi-
fications could be made to the locking device ~ithout
departi~ng from the scope of the present invention which
is defined by the appended claims. For example, the
shock absorbing surface on the abutment walls may be
provided with a uniform shock absorbing material rather
than having ribs.
. g _
