[0001] The present invention relates to a security system for movable apparatus as well
as movable apparatus that have been provided with such a security system. More in
particular, the invention is concerned with an improved fixing-device, which is suitable
to be applied to any portable articles, in particular portable electronic apparatus,
such as: notebooks, plasma screens and TFT-screens (flat screens), where these apparatus
can be fastened to a table or a wall, or the like, through a chain, cable or similar
fastening means to protect against unlawful or undesirable removal.
[0002] Fixing devices to fix or anchor portable or easily movable apparatus through connecting
means are already known. Such fixing devices are usually connected on the one side
to the apparatus concerned and on the other side with a chain or cable, whereby the
apparatus is finally fixed.
[0003] For the connection of a movable piece of apparatus with a fixing-device, use is often
made of a standard opening or slot-hole in the wall of the apparatus, also called
a "security slot". A well known design of a similar slot-hole is the so called "Kensington
Slot" on portable computers and related equipment such as: plasma screens and flat
screens. The wall is, in many cases, made out of plastic, which may or may not be
reinforced with a metal plate around the slot. The fixing-device is introduced into
this slot-hole and then bolted detachable.
[0004] There are several known ways on which the bolting can be carried out. In one of the
two main ways the fixing-device is provided with a spindle, which has a T-formed transverse
element at the end. This spindle is entered into the slot-hole, then twisted 90 degrees
and bolted. See for example US 6,735,990, EP-A-0 791 123 and EP-A-1 028 212, and the
German Offenlegungssehrift nr. 199 15 959. In the other main form the fixing-device
is provided with one or more outside extending elements that include a transverse
element, or catch at the end. By attaching the fixing-device the outside extending
elements which are put in the slot-hole and are then manipulated in such a way that
the transverse element or the transverse elements or the catch or catches by their
protruding part or parts hold the fixing-device in the slot-hole, whereupon this can
be bolted. The transverse element or catch providing the protruding elements are often
applied in pairs. When inserted the ends of these elements can move away from each
other (for example in a scissors movement), so that the respectively transverse elements
or stops prevent the fixing-device from being pulled out from the slot-hole. See for
example WO 02143586 and US 5,983,679; see further US 5,983,679.
[0005] In the above-described cases, when the fixing-device is bolted into the slot-hole,
it rests mostly only a small part of the walls of the slot-hole. In the case of a
spindle on a part of the long sides and in the case of transverse elements mostly
on the short sides, then the risk exists that the slot-hole rips out already under
the strain of a small pulling force. Because the slot-hole is relatively small, the
mechanical construction of the fixing-device is generally light and weak in design.
[0006] For this reason there is a need for a fixing-device for a slot-hole more robust and
more strongly constructed than any fixing-device currently available.
[0007] It was found that this could be achieved by providing a fixing-device that is suitable
to be applied to a movable article, which article has a wall fitted with a standardised,
rectangular "security slot", where the fixing-device mainly consists of:
- Two actual uniform locking elements, which together can bolt the fixing-device detachable
in the security slot, whereby each locking element comprises:
- a flat basic body containing an opening
- a connection part extending from the basic-body, in the same plane, which has such
a width that it can be introduced into the security slot, and
- a to the basic body distant end of the connection part attached linking part which,
in fact, has the same width as the connection part to be introduced into the security
slot, which linking part stands perpendicular on the basic-body and the connection
part;
- a bolting body, which in fact consists of two parallel planes linked to each other
within a distance, where both planes are provided with an opening and whereby the
bolting body is configured in such a way that it can be applied close-fitting over
the both on top of each laying basic bodies, whereby the opening of the bolting body
and basic-bodies lie in one line; where the respective connection parts of the two
locking elements have a total thickness, which is just a bit smaller than the shortest
side of the security slot.
[0008] Where the two locking elements have been positioned in such a way, after introduction
into the security slot, that the respective basic bodies and the respective connection
parts lie on each other, where the respective openings of the two basic bodies lie
in one line, and that the respective connective parts and respective coupling parts
both stick together in the security slot, where the two connective parts are in fact
perpendicular to the wall of the security slot and both coupling parts are positioned
in opposite direction and in fact parallel to the wall; and
where the bolting body, after applying over both basic bodies of the 'in the security
slot applied locking elements' ensures that the locking elements are being bolted
in the security slot.
[0009] In a preferred design, according to the invention, the two locking elements and the
bolting body are made of a rigid and relatively thick material, preferably steel with
a thickness of at least 1 to 1.5 mm. It is advantageous, if the bolting body still
has a somewhat larger thickness, for example 2 mm. The design of the fixing-device,
according to the invention, makes it possible to use maximum advantage of the mechanical
strength of the security slot. By the above-mentioned thickness of the components
of the fixing-device, the chance of damage and/or bending of these components and
particularly the connection part and the coupling part are small and in any case smaller
than systems known so far.
[0010] To the fixing-device, according to the invention, after the locking elements have
been introduced into the security slot and after that the bolting body is applied
over the two basic-bodies, preferably a cable, chain or padlock is put through the
in-line positioned holes of the locking elements and the bolting body, with which
the fixing-device has been on one side bolted with the movable article and on the
other side by the applied cable, chain and/or padlock is coupled to a fixed point
in the surroundings, such as a table leg or to a partition or wall-attached eye etc.
[0011] It is advantageous, if the cable, chain or padlock are put in a close-fitting manner
through the in-line openings of the locking elements and the bolting body of the fixing-device,
because of this forcing of the construction is hampered. According to the invention,
it is possible to design the fixing-device in a relatively robust format, as a result
of which also the opening in the base body of the two locking elements, as well as
the two openings of the bolting body, have a cross section in the order of 6-12 mm
and even greater. Because of this it is possible to affirm the fixing-device to a
thick cable or heavy padlock, as a result of which the resistance against destruction
is considerably greater than with systems well-known so far.
[0012] For the same reason it deserves the preference that both the locking elements have
such dimensions, that they can be applied closely-fitting in the circumference of
the security slot. This applies both to the width of the respectively connection parts
and coupling parts of the two locking elements, and for the common cross-section of
particularly the two connection parts. Also it is advantageous, if the connection
parts of the locking elements are short, for example just something longer than the
thickness of the wall of the security slot.
[0013] The invention can be in principle applied to every movable article which has the
availability of a wall, in which a security slot is present. A particular preference
however, is the application upon movable apparatus and in particular portable electronic
apparatus with a relatively high value, such as laptops, notebooks, plasma screens,
TFT-screens and flat screen TV's.
[0014] According to another aspect of this invention it also applies to every security system
for movable apparatus, where this security system includes a fixing-device, defined
as above.
[0015] The invention is related further to every movable article, which is provided with
a security system, like above.
[0016] The invention is now further illustrated by means of the following drawings, in which:
the figures 1A and 1B are schematic cross-sections showing a fixing-device according
to the invention in an assembled state, respectively provided with a connection cable
and a padlock;
Figure 2 reflects a wall of a (movable) apparatus, with a "security slot" in it;
Figure 3 is a locking element of a fixing-device according to the invention is
Figures 4 to 7 reflect schematically several stages of the assembly of a fixing-device
according to the invention to a wall with a "security slot".
[0017] In the various figures equal reference figures have always the same meaning.
[0018] In Figures 1A and 1B a fixing-device is shown, according to the invention, being
assembled in a wall 3 with a security slot 9 (see also Fig. 2). The fixing-device
consists of two, in fact, uniform locking elements 10 (see also Fig. 3), which each
consist of a basic body
1, 2, with an opening
6, a connection part
11 and a coupling part
12, 13 (the respective basic bodies and coupling parts are, although in principle identical
referring to several corresponding figures, to be able to distinguish them in description),
as well as a bolting body
5. The bolting body
5 has always been represented in the figures as a U-shaped body, within the two parallel
planes, located at a distance from each other is an opening
7. The distance between the two main areas has been chosen this way by preference, so
that the U-shaped body
5 is introduced close-fitting over the "on top of each other" lying basic bodies
1, 2, were applied, whereby the four holes
6, 7 are brought into line with each other, so that as a result for example a cable
4 or a padlock
8 can be applied, where the bolting device
5 is tightly connected with both the basic-bodies 1, 2 and the locking elements via
the security slot
9 in the wall
3 is bolted.
[0019] The cable
4 can be continuous or not and can have a thickened end piece
9, that is designed in such at way that it cannot be pulled through the openings 6,
7. On the padlock
8, which on the one side can be applied through the holes 6, 7, (see fig 1 B) there
can furthermore be attached a chain or a cable loop, visualised here schematically
with an indicating number
15, with which it can be affixed through the fixing device according to the invention
to a locked moveable article.
[0020] It will be clear to an expert that the botting element 5 also can have a different
shape than the U-shape shown here. Similar modifications are also contained in the
total of the present invention.
[0021] Figures 4 to 7 show schematically how the fixing-device according to the invention
can be mounted in a simple way to the wall with a security slot. Firstly, a locking
element
10, with the connection part
11 and a coupling part
13 brought oblique into the security slot
9 (see
Fig.4), whereby the coupling part
13 is pointed downwards. After the coupling part
13 is inserted into the security slot
9, the basic body 2 is brought into a position perpendicular on the wall (see Fig 5),
whereby the locking device is resting on the bottom of the security slot.
[0022] Next the second locking element
10 is inserted with connection part
11 and coupling part
12 oblique in the security slot
9 (see Fig 6), whereby the couplings part
12 is pointing upwards. Looking at the preference to execute the whole construction
as close fittingly as possible, it may be necessary to apply a little force to put
the second locking element into place. This is however, no obstruction for the construction
of this invention. After the coupling part
12 is inserted into security slot
9 the basic body
1 is positioned perpendicular to the wall (see Fig. 7), whereby this second locking
device concerning the basic body and the connection part on one side mainly rests
on the first locking device and on the other side preferably also rests against the
upper side of the security slot 9. Finally, over either side, of the "on top of each
other laying basis bodies
1, 2" the bolting device 5 is pushed, whereby the openings
6, 7 are brought into line allowing a cable
4 or a padlock
8 etc. to be attached. The assembly of the fixing-device according to the invention
is herewith completed.
[0023] It will be clear for a person skilled in the art that modifications and adjustments
for the requested described security system can be applied, without there being a
deviation to the essence of the invention. It is for example thinkable, that the dimensions
of the parts of the locking-device can be adjusted in such a way that the respective
connection parts and coupling parts can make use of the short sides of the security
slot in place of the long sides, as described and shown. Also it is thinkable, that
the basic body and the connection part of the locking element are not in the same
plane, whereby the basic body for example may be turned 90 degrees in respect of the
described and shown model. Furthermore a security slot with a greater width, as well
as locking elements with a smaller thickness, can be supplied, whereby the extra space
is being filled with an extra filling plate, which in fact also has a locking element,
a basic-body and a connection part but has no coupling part. That is why such and
similar modifications and further adjustments are also included in this invention.
1. A fixing device, suitable to be applied to a movable article, said article having
a wall comprising a standardized rectangular "security slot", wherein said fixing
device essentially comprises:
- two essentially uniform locking elements, which together are capable of locking
said fixing device detachable in the security slot, each locking element comprising:
- a flat basic body provided with an opening hole.
- a connecting element extending from the basic body in the same plane having a width
such that it can be inserted into the security slot, and
- a coupling element having essentially the same width as the connecting part to be
inserted into the security slot with the basic body distant end of the connecting
part connected, said coupling elements are essentially perpendicular to the basic
body and the connecting element,
- bolting means, that, essentially, consists of two parallel planes and connected
to each other with a distance, whereby both planes have an opening and whereby the
bolting device is configured in such a way that it can be applied closely fitting
over the "on top of each other laying basic bodies", whereby the openings of the bolting
device and the basic bodies are in one line;
Whereby the respective connecting parts of the two locking elements have a total cross-section
that is just a bit smaller than the shortest side of the security slot;
whereby both the locking elements after inserting it into the security slot are positioned
in such a way that the respective basic bodies and the respective connecting parts
lay upon each other, whereby the respective openings of both the basic bodies are
in one line, and the respective connecting parts and the respective coupling parts
are inserted together into the security slot, whereby both connecting parts are essentially
perpendicular to the wall of the security slot and both the coupling parts are in
opposite direction essentially parallel to the wall; and
Whereby the bolting device after applying it over both basic bodies of the "in the
security slot" applied locking elements maintain, that the locking elements are locked
in the security slot.
2. Fixing device according to claim 1, whereby both locking elements and the bolting
device are made from rigid and relatively thick material.
3. Fixing device according to claim 1 or 2 whereby a cable, chain or padlock is applied
through the aligned openings of the locking elements and the bolting device.
4. Fixing device according to claim 3, whereby a cable, chain or padlock is brought through
the close-fitting aligned opening of the locking elements and the bolting device
5. Fixing device according to any one of the previous claims, whereby both locking elements
have such dimensions, that they are applied close-fittingly with the circumference
of the security slot.
6. Fixing device according to one of the previous conclusions, whereby the movable article
is an electronic device.
7. Fixing device according to conclusion 6, whereby the electronic device is a laptop,
notebook, plasma screen, TFT-screen or a flat screen TV.
8. Security system for movable apparatus, with the mark, that this is a fixing device,
such as defined in one of the conclusions 1 to 7.
9. Movable article, with the mark, that it is provided with a security system, such as
defined in conclusion 8.