CA1248359A - Device for locking and releasing objects intended for public use, such as luggage carts - Google Patents
Device for locking and releasing objects intended for public use, such as luggage cartsInfo
- Publication number
- CA1248359A CA1248359A CA000464832A CA464832A CA1248359A CA 1248359 A CA1248359 A CA 1248359A CA 000464832 A CA000464832 A CA 000464832A CA 464832 A CA464832 A CA 464832A CA 1248359 A CA1248359 A CA 1248359A
- Authority
- CA
- Canada
- Prior art keywords
- slide
- locking
- locking apparatus
- portions
- adjacent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002184 metal Substances 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/06—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by returnable containers, i.e. reverse vending systems in which a user is rewarded for returning a container that serves as a token of value, e.g. bottles
- G07F7/0618—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by returnable containers, i.e. reverse vending systems in which a user is rewarded for returning a container that serves as a token of value, e.g. bottles by carts
Abstract
Device for locking and releasing objects intended for public use, such as luggage carts.
ABSTRACT OF THE DISCLOSURE
The present invention relates to a device for locking and releasing objects intended for public use, such as luggage carts, comprising a slide constituted by two portions, i.e., a first portion, a second portion separated from the first portion by an intermdiate or shim element adapted to be displaced out of its housing by a special means such as a magnetic key to allow said first portion to be displaced, by a pulling action exerted thereon, with respect to the said second portion to thus unlock the object locked between two adjacent objects.
ABSTRACT OF THE DISCLOSURE
The present invention relates to a device for locking and releasing objects intended for public use, such as luggage carts, comprising a slide constituted by two portions, i.e., a first portion, a second portion separated from the first portion by an intermdiate or shim element adapted to be displaced out of its housing by a special means such as a magnetic key to allow said first portion to be displaced, by a pulling action exerted thereon, with respect to the said second portion to thus unlock the object locked between two adjacent objects.
Description
~:2~83S5'1 The present invention relates to an improvement to the device for locking and releasing objects intended for public use, particularly objects intended to be put at the public's disposal free of charge, such as luggage carts in a railw.ay station or an airport, shopping trolleys in a self-service store, which objects the public can take directly from a common stowage space and must be taken back to the said stowage space, which device is described in CANADIAN patent application nD 4~1 721 lû filed on the 4th July 1983.
There is already known a device including a locking apparatus allowing each object to be automaticall:y locked to the adjacent object or~to a fixed point in stowed position, into which locking appa:ratus is introduced a coin or the like authorizing the unlocking of the locking apparatus and the release o:f the object by exerting a pull thereon,; said lockin~g ~apparatus~being designed to return the said c:oin when the object is returned to the stowage space and:locked to an adjacent obj~ect or to a 20 fixed point, and the unlocking is:::obtai~ned by the said pull, which ensures successively the unblocking of the locking~apparatus and the r`elease;of the said obJect.
The locking:~:apparatus~includes parti~cularly~a slide which ~-: is;movable under the:~;acti~on~of the sa~id pull and fixable :by an:int~er:nal:locking memb~er which is movable to a non~
b:I~ocking~posltlo;n~by comlng~lnto~contact with~ the édge of ;~
the said~co~ln,~;~the sa~ld s~llde serving:to~lock or unlock the lock~co~nnectlng;the~obJect to an adjacent object or to a.fixed~poi~nt.~
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~Z~L835~1 However, such a device suffers from a disadvantagewhich consists in that the introduction of a coin does not allow unlocking an intermediate object from a line of objects locked to one another, for all the front and rear clearances of the intermediate object are insuffic-ient and even eliminated.
The present invention therefore has for a purpose to remedy this disadvantage by providing a device for locking and releasing objects intended for public use, such as luggage carts, of the type described above, and characterized in that it compri~es an appropriate means for unblockin~ the said object from the adjacent object, particularly when it is locked between two adjacent objects.
According to a feature of the invention, the said slide is constituted by two portions, a first portion serving to perform the said locking and unlocking of the connecting lock, a second portion, separate from the first portion and located towards an end portion of the casing of the locking apparatus, an intermediate element being housed between the first and second portions so as to maintain a distance of separation between the first and second portions of the slide substantially ~equal to the slide travel necessary for unlocking the connecting lock, the said intermediate element being partially displaceable out of its housing by said appropriate means to allow the first portion of the slide to be moved under the action of the said pull with respect to the second portion of the slide over the said distance of separation, thus unlocking the said object from the adjacent object, particularly when it is locked between two adjacent objects.
According.to a preferred aspect of the invention, said interme~iate element is a substantially rec~angular metal plate having two of its free sides adjacent~to two corresponding~shoulders:of:~the first and second portions of the slide,~ respectively, and maintained between the first and~second~portions by a resilient straight `.`
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element one end of which is connected to the said intermediate element, whereas its other end is connected to one o~ the said first and second por-tions o the slide.
According to another preferred feature of the invention, the said means is in -the form of a magnetic key extending throughout the casing of the locking apparatus and attracting one of the said two free sides of the metal plate out of the corresponding said shoulder.
According to one embodiment of the present invention there is provided a device for locking and releasing objects intended for public use, such as luggage carts, including a locking apparatus allowing each object to be automatically locked to an adjacent object or to a fixed point in stowage position and into which a coin can be inserted to allow unlocking of the locking apparatus and releasing of the object by exerting a pull thereon, the unlocking being ensured by the pull, the locking apparatus including a casing, a slide displaceable by the pull, an internal blocking member for fi~ing the slide and which is movable to a non-blocking position by coming into contact with an edge of the coin, and a connecting lock for locking the object to the adjacent object or to the fixed point, the slide serving to lock or unlock the connecting lock connecting the object to the adjacent object or to the fixed point; wherein the slide is constituted by two portions, a first portion for the locking and unlocking of the connecting lock, a second portion separate from the first portion and located near an endmost portion of the casing of the locking apparatus, and additionally comprising an intermediate element housed between the first and second portions forming a~housing therefor so as to maintain between the firs. and second portions of the slide a~separating distance substantially equal to slide travel necessary for unlocking the connecting :
, , ~2~3359 lock, means ~or allowing the firs-t portion of the slide to be displaced by the pull with respec-t to the second portion over the separating distance, the intermediate element being partially displaceable out of the housing between the first and second portions by the means, thus unlocking the object from the adjacent object.
The invention will be better understood and other purposes, features, details and advantages thereof will appear more clearly as the following explanatory description proceeds with reference to the appended diagrammatic drawings given solely by way of example illustrating two forms of embodinent of the invention and wherein:
Figure 1 is a sectional view upon the line I-I of Figure 2, illustrating one example of embodiment of a locking apparatus according to the invention;
Figure 2 is a sectional view upon the line II-II of Figure l;
Figure 3 is an enlarged view of the portion encircled by a dash-dotted line in Figure 2;
Figure 4 is a sectional view upon the line IV-IV of Figure 5 illustrating another example of embodiment of a locking apparatus according to the invention;
Figure 5 is a sectional view upon the line V-V of Fiqure 4;
Figure 6 is a sectional view upon the line VI-VI of Figure 4;
Figure 7 is a sectional view upon the line VII-VII
of Figure 4; and Figure 8 is a perspective view of the various elements constituting the locking apparatus of the invention.
The device as illustrated allows several luggage carts (not shown) in stowed position to be locked to one another.
Referring to the Figures, the device includes a locking apparatus 3:allowing each ob~ect to be . ~`
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- 4a -automatically locked to the adjacent objeck or to a fixed point in stowed position, and i.nto which a coin or the like 4 is introduced to allow unlocking of the locking apparatus 3 and releasing the object by exerting a pull thereon, the locking apparatus 3 being designed to return the coin 4 when the object is taken back to the stowage space and :
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locked to an adjacent object or to a fixed point; in particular, said pull ensures successively the unblocking of the lock 3 and the unlocking of the object.
As will be recalled, the locking apparatus 3 includes a slide 5 which is movable under the action of the said pull and is fixable by an internal blocking member 6 and unblockable when a sufficient pull is exerted by coming into contact with the edge of the coin 4, the slide 5 serving to lock or unlock the lock 37 connPcting the object to an adjacent object or to a fixed point.
In the example illustrated, the blocking member is constituted by a stop or abutment 6 pivotally mounted on a pivot pin 9 which is substantially horizontal and perpendicular to the longitudinal axis X-X' of the locking apparatus 3. The stop 6 may be acted upo~ by a U-shaped-strip return-spring 10.
The movable slide 5 has a shoulder 11 at its upper surface opposite the free end of the stop 6. When no coin is introduced into the locking apparatus and when a pull is exerted on the object, the free end of the free stop moves into abutment against the shoulder 11, thus prevent-ing the unlocking of the locking apparatus. Figure 1 shows the travel a oF the slide during a pull onto the object without introducing any coin within the locking apparatus.
The locking apparatus 3 also includes a means 8 for retaining the coin 4 in either of two positions in which the coin is confined in the locking apparatus, i.e., an active retained position ensuring the unblocking of the locking apparatus 3 and an inacti~ve retained position,~
30~ respectively. ~s illustrated in the Figures and more particularly in Figure 4, the retalning means 8 consists of a projection cast integral with the internal face of the cover 3a of the locking apparatus and occupies a defin;ite position in the~re~cess 12 of the slit 13 extend-ing throughout the lo~cking apparatus, said~ projection B
being located~substantlally at the~longltudinal axis X-X' ;~J : ~ ~: '' :
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-of the said locking apparatus. Such a projection advantageously replaces the rocker and spring of the retaining means described in CAN~DIAN patent application n 431 721 filed on the.4th July 1983 and allows a considerable saving of time in mounting the locking apparatus and a higher reliability thereof (doing away with the movable parts) while at the same time hauing no unfavourable effect upon the operation of the device~ Indeed, up to a given value of the pulling action, i.e., up to a certain displacement of the slide 5 towards the left (in Figure 1) with respect to the projection 8, the latter retains the coin 4 in the slit 13 in its active position ensuring the unblocking ~f the locking apparatus 3. When this pre-determined value is exceeded, the coin 4 moves down in the slit 13 by gravity and assumes an inactive retained position as shown in dash-dotted lines in Figure 1. The coin 4 is maintained in a inactive position by resting, on the one hand, on the vertical wall 5a (in dash-dotted lines.
of the slide 5 and, on the other hand, on the upper curvilinear portion of the recovery funnel E. ~hen the object is taken back to the stowage space and is locked to an adjacent object or to a fixed point, the slide 5 moves to the right (in Figure 1) so as:to release the coin from the slit 13 and thus allow it to be recovered.
Figure 1 shows the total travel b of the slide during the unlocking of the connecting lock 37, this travel being defined between an abutment portion B integral with a fixing element 42 to which the locking apparatus 3 :is~
fixed and a rounded endmost edge of an openiny provided in -3û the slide along the axis X-X' and in which the abutment B
is located, the:convex portion of:this edge being directed towards the projection 8. ~ :
The lock 37 for connecting the object to an adjacent object whose locking:apparatus 3' is~repr~esented by dotted lines IS constituted by first, female means 19, 20 and second, male means 38, connected to the longitudinally :
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endmost portion 39, 40 of the casing of the locking apparatus 3, respectively. The said first means connected to the longitudinal end 39 of the locking apparatus 3, i.e., as in the example illustrated, the end in the right portion of Figure 2, is constituted in particular by a clamp consisting of two unsymmetrical jaws 19, 20 acted upon by a spring 30 and so designed that only a connecting bar or locking pin 38 constituting the aforesaid second means of an adjacent object and whose diameter is perfectly calibrated, can fit in therebetween. In the example illustrated, the connecting bar 38 is connected to the endmost portion 40 of the casing of the locking apparatus 3 (in the laft portion of Figure 2) adjacent to the free end 41 of the slide 5, and, in the locked position, is spaced from the latter a sufficient distance to allow said bar to be introduced between the jaws 19", 20" (only the endmost portion of the latter being shown in dotted lines) of the locking apparatus of an adjacent object.
Thus, in the unlocked position, the free end 41 of the 20 slide 5, shown in Figure 1 in dotted lines, prevents the locking of the cart to another cart. Indeed, the space then formed between the connecting bar 38 and the free end 41 of the slide 5 is insufficient to allow the introduction of the bar 38 between the jaws 19", 20" of another cart.
Thus, in case a cart is abandoned, it is no longer possible, owing to such design of the locking apparatus, to use its locking pin for lockiny one's cart. In other ~ords, one cannot lock his cart to another cart unless the latter is already locked.
The movable slide 5 is also provided with 2 tongue 23 holding the jaws 19, 20 of the clamp in closed position.
To this end, the jaws 19, 20 are provided, on their inner-most port~ion in the locking apparatus, with mutually apposite recesses 36a, 36b whlch, in the locked po ition of the locking apparatus, define a space in which the tongue 23 is located so as to black the lacking apparatus in this position.
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The locking apparatus 3 is secured to a cart by the fixing member 42 through the medium of appropriate fastening means 43 such as screws, bolts or the like Furthermore, there may be provided an oblong recess 44 for the calibrated bar 38 so as to compensate for the differences in height between the carts, and an opening 45 in the endmost portion 40 of the locking apparatus 3 so dimensioned as to provide a lateral clearance between the carts.
lû The operation of the locking apparatus has already been described in detail in CANADIAN pfltent application n 431 721 filed on the 4th July 1983 and, therefore, needs not be described again here.
Once the locking apparatus 3 is locked, on the one hand, by means of its jaws 19, 20, to the locking pin 3e~
of the locking apparatus 3' of an adjacent object and, on the other hand, by means of its locking pin 38, to the jaws 19", 20" of another adjacent cart, it is no longer possible, by introducing a coin, to release the object from the adjacent object standing on the right side (according to Figure 1). Indeed, a pull exerted on the object towards the left (according to Figure 1) results in a displacement, in the same direction, of the slide 5, i.e., a slide travel c defined between the free end 41 of the slide and the free ends of the jaws 19", 2û". Since the travel c is smaller than the total travel b of the slide 5 defined previously, the tongue 23 maintains the clamp jaws 19, 20 in the locked position.
The present invention allows removing the above draw-back.
To this end, the slide 5 is constituted by two portions,i.e., a first portion 5a constituting the slide portion serving to lock or unlock the connecting lock 37 of the obiect to an adiacent object, and a secor.d portion 5b completely separate from the first portion and located near the endmost portion 40 of the casing of the locking :: :
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apparatus 3. The said first and second portions are spaced from one another a distance d along the axis X-X' by an intermediate or shim element 5c in the form of a substantially rectangular metal plate. The plate 5c is located in a cavity defined between the first and second portions 5a and 5b and having two lateral walls perpen-dicular to the axis X-X' of ~igure 1 defined by two shoulders 5al and 5bl respectively, of the first and second portions adjacent to the free opposite sides 5cl 10 and 5c2 of the plate 5c, the upper and lower sides 5c3 and 5c4 of the plate 5c which are parallel to the axis X-X' being adjacent to the upper walls 5a3, 5b3 and the lower walls 5a4, 5b4 of the cavity. As shown particularly in Figure 2, the plate 5c bears partially by its face 5c5, on the one hand, against a face 5a2 of the first portion 5a perpendicularly connecting with the shoulder 5al and parallel l:o the axis X-X' and, on the other hand, against a face 5b2 of the second portion 5b perpendicularly connecting with the shoulder 5bl and parallel to the axis X-X', the said faces 5a2 and 5b2 constituting the bottom of the cavity in which the plate 5c is housed and connecting with the end edges 5a5 and 5b5, respectively, of the first and second portions 5a and 5b~and spaced a distance d. The width of the shoulders 5al and 5bl is substantially the same as the thickness of the plate 5c.
A flat face 5b6 parallel to the axis X-X' and spaced from the internal wall 3al of the cover 3a of the locking apparatus 3 connects with the shoulder 5bl~.
A resilient straight element 5d in the form of a thin metal plate bears upon the face of the metal plate 5b confronting the face 5c5 and connected at one of its free ends to the plate 5c through the medium of a hook portion 5dl extending through an~openin~g in the form of a slot Sc6~ provided~on the free side 5c2 adjacent to the shoulder 5bl. The resilient plat~e~5d extends beyond the plate 5c and has its other end~ secured between a corresponding flat ~ ~ :
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face of the first portion 5a and a washer 5z pressedagainst the resilient plate 5d through the medium of, for example, a rivet or the like. It is understood that the plate 5c is maintained in position between the shoulders 5al and 5bl by the resilient plate 5d. Of course, the resilient plate 5d may be secured to the second portion 5b of the slide with the hook portion located in proximity to the shoulder Sal.
There also appears in Figures 2 and 3 a lock device including a special service key, particularly a magnetic key 50, adapted to be inserted into a corresponding lock hole 51 provided through the wall of the cover 3a of the locking apparatus 3 and opening into the interior of the latter in proximity to the end side 5c2 of the metal plate 5c, the axis Y-Y' of the lock hole being perpendicular to the plate 5c and approximately intersecting the longitud-inal axis X-X' of Figure 1, the plate side 5c3 being substantially aligned with the axis X-X'.
Figure 3 shows the magnetic key 50 inserted into its corresponding lock hole. In this position, a magnet 50a located at the free end of the key is placed adjacent to the face of the metal plate 5c opposed to the face 5c3 of the latter. The magnet then attracts the end portion of plate 5c including the side 5c2, which therefore is out-side the shoulder 5bl and bears upon the internal face 3al of the lateral wall of the cover 3a of the casing of the locking apparatus 3 so that the plate 5c is inclined with respec~t to the axis X-X'. Figure 3 shows the angle ~
of inclination of the upper side 5c3 of the plate 5c with 3û respect to the axis X-X'. By exerting a pull on the object, the first portion 5a of the slide 5 is displaced with respect to the second portion 5b in a direction towards the left in Figure 2. Simultaneously with this displacement of the first portion 5a, the end portion including the side 5c2 of the plate 5c enters the space defined between the face 5b6 and the internal face 3al of the lateral wall of the cover 3a. Figure 3 precisely L835~
shows the endmost position of the edge 5a5 of the first portion 5a at the end of the travel o e the latter (d then being substantially equal to 0). In -this endmost position of -the first portion 5a of the slide 5, the connecting lock 37 is unlocked, thus allowing the object to ba unlocked from the locking pin 38' of the adjacent cart. It is therefore understood that -the slide 5 thus designed allows an authorized person possessing the magnetic key 50 to unlock an intermediate object or car-t from a line of objects locked to one another.
The said authorized person can thereafter exert a push on the object resulting in a displacement towards the right of the portion 5a of the slide 5 till the endmost position of the latter, i.e. , till the separating distance d is again reached. The said person then withdraws the magnetic key 50 from its lock hole and the resilient plate acts upon and returns the free side 5c2 to a position opposite the shoulder 5bl, the plate 5c thus being again located between the shoulders 5al and 5bl as shown in Figure 2.
Of course, the lock hole 51 is a complex hole in order to prevent an unauthorized person from inserting therein a magnetized means allowing the aforedescribed unlocking.
Re~erring now more particularly to Figures 4 and 5, another form of a locking apparatus will be described.
It is well~understood that the identical elements of the two embodiments have the same reference numerals and are not to be described again. In the example shown in Figures 4 and 5~, the locking pin 38 is mounted on a support arbor 46 connected to the endmost portion 40 of the casing o~ the locking apparatus 3 (in the left-hand portion of F}gure 4 adjacent to the free end ~1 of the slide 5 and spaced from the latter, in the locked position, a sufficient distance to allow the pin 38 to be inserted between the ~ ~ ~
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jaws of the locking apparatus of an adjacent object.
As shown in Figure 5, the support arbor ~6 extends through the opening 45 of the endmost portion 40 of the locking apparatus 3 (this opening being 50 dimensioned as to pro~ide a lateral clearance between carts) and is removable perpendicularly to the longitudinal axis X-X' of the casing of the locking apparatus by the use of a circlip element 47. The possibility of removing the support arbor 46 allows disrupting or breaking up ranks of carts in order to transfer them to other, less charged ranks.
The locking pin 38 includes a first cylindrical hollow portion 38a connecting at one of its ends with a second cylindrical shoulder portion 38b laterally abutting against a corresponding shoulder of the arbor 46. The diameter of each of the two cylindrical portions 38a, 38b is so calibrated as to allow it to be inserted between the jaws 19, 20.
As shown in Figure ~, the jaw 19 is so shaped that the calibrated cylindrical portion 38a of the pin 38 fits therein, whereas the jaw 20, which is smaller in length than the jaw 19, has an oblique surface 28 against which, in the locked position, the circular external surface of the shoulder 38b bears. Thus, the unlocking of the locking apparatus is made difficult for defrauders, the jaw 20 being partially covered by the cover 3a of plastics material. This covering of course also applies to the locking apparatus of Figures 1 and 2.
It should be noted that, when the support arbor 46 is removed from the locking apparatus 3 in order to disrupt a rank of carts, the locking pin 38 remains inserted between the jaws 19, 20 of the locking apparatus of the adjacent cart.
Fioure 6 is an exploded perspective view of the various locking apparatus elements described. There also ` appears in this Figure a slit 3b provided on the external - ` . ': ' ~ :
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lateral wall oF the cover 3a of the locking apparatus casing 3c and through which the coin or the like 4 is introduced. The modification of the location of this slit offers the advantage of reducing the penetration of water and humidity capable of freezing the locking apparatus on frost days.
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There is already known a device including a locking apparatus allowing each object to be automaticall:y locked to the adjacent object or~to a fixed point in stowed position, into which locking appa:ratus is introduced a coin or the like authorizing the unlocking of the locking apparatus and the release o:f the object by exerting a pull thereon,; said lockin~g ~apparatus~being designed to return the said c:oin when the object is returned to the stowage space and:locked to an adjacent obj~ect or to a 20 fixed point, and the unlocking is:::obtai~ned by the said pull, which ensures successively the unblocking of the locking~apparatus and the r`elease;of the said obJect.
The locking:~:apparatus~includes parti~cularly~a slide which ~-: is;movable under the:~;acti~on~of the sa~id pull and fixable :by an:int~er:nal:locking memb~er which is movable to a non~
b:I~ocking~posltlo;n~by comlng~lnto~contact with~ the édge of ;~
the said~co~ln,~;~the sa~ld s~llde serving:to~lock or unlock the lock~co~nnectlng;the~obJect to an adjacent object or to a.fixed~poi~nt.~
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~Z~L835~1 However, such a device suffers from a disadvantagewhich consists in that the introduction of a coin does not allow unlocking an intermediate object from a line of objects locked to one another, for all the front and rear clearances of the intermediate object are insuffic-ient and even eliminated.
The present invention therefore has for a purpose to remedy this disadvantage by providing a device for locking and releasing objects intended for public use, such as luggage carts, of the type described above, and characterized in that it compri~es an appropriate means for unblockin~ the said object from the adjacent object, particularly when it is locked between two adjacent objects.
According to a feature of the invention, the said slide is constituted by two portions, a first portion serving to perform the said locking and unlocking of the connecting lock, a second portion, separate from the first portion and located towards an end portion of the casing of the locking apparatus, an intermediate element being housed between the first and second portions so as to maintain a distance of separation between the first and second portions of the slide substantially ~equal to the slide travel necessary for unlocking the connecting lock, the said intermediate element being partially displaceable out of its housing by said appropriate means to allow the first portion of the slide to be moved under the action of the said pull with respect to the second portion of the slide over the said distance of separation, thus unlocking the said object from the adjacent object, particularly when it is locked between two adjacent objects.
According.to a preferred aspect of the invention, said interme~iate element is a substantially rec~angular metal plate having two of its free sides adjacent~to two corresponding~shoulders:of:~the first and second portions of the slide,~ respectively, and maintained between the first and~second~portions by a resilient straight `.`
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element one end of which is connected to the said intermediate element, whereas its other end is connected to one o~ the said first and second por-tions o the slide.
According to another preferred feature of the invention, the said means is in -the form of a magnetic key extending throughout the casing of the locking apparatus and attracting one of the said two free sides of the metal plate out of the corresponding said shoulder.
According to one embodiment of the present invention there is provided a device for locking and releasing objects intended for public use, such as luggage carts, including a locking apparatus allowing each object to be automatically locked to an adjacent object or to a fixed point in stowage position and into which a coin can be inserted to allow unlocking of the locking apparatus and releasing of the object by exerting a pull thereon, the unlocking being ensured by the pull, the locking apparatus including a casing, a slide displaceable by the pull, an internal blocking member for fi~ing the slide and which is movable to a non-blocking position by coming into contact with an edge of the coin, and a connecting lock for locking the object to the adjacent object or to the fixed point, the slide serving to lock or unlock the connecting lock connecting the object to the adjacent object or to the fixed point; wherein the slide is constituted by two portions, a first portion for the locking and unlocking of the connecting lock, a second portion separate from the first portion and located near an endmost portion of the casing of the locking apparatus, and additionally comprising an intermediate element housed between the first and second portions forming a~housing therefor so as to maintain between the firs. and second portions of the slide a~separating distance substantially equal to slide travel necessary for unlocking the connecting :
, , ~2~3359 lock, means ~or allowing the firs-t portion of the slide to be displaced by the pull with respec-t to the second portion over the separating distance, the intermediate element being partially displaceable out of the housing between the first and second portions by the means, thus unlocking the object from the adjacent object.
The invention will be better understood and other purposes, features, details and advantages thereof will appear more clearly as the following explanatory description proceeds with reference to the appended diagrammatic drawings given solely by way of example illustrating two forms of embodinent of the invention and wherein:
Figure 1 is a sectional view upon the line I-I of Figure 2, illustrating one example of embodiment of a locking apparatus according to the invention;
Figure 2 is a sectional view upon the line II-II of Figure l;
Figure 3 is an enlarged view of the portion encircled by a dash-dotted line in Figure 2;
Figure 4 is a sectional view upon the line IV-IV of Figure 5 illustrating another example of embodiment of a locking apparatus according to the invention;
Figure 5 is a sectional view upon the line V-V of Fiqure 4;
Figure 6 is a sectional view upon the line VI-VI of Figure 4;
Figure 7 is a sectional view upon the line VII-VII
of Figure 4; and Figure 8 is a perspective view of the various elements constituting the locking apparatus of the invention.
The device as illustrated allows several luggage carts (not shown) in stowed position to be locked to one another.
Referring to the Figures, the device includes a locking apparatus 3:allowing each ob~ect to be . ~`
.'~
~ ' , :
~2~33S~
- 4a -automatically locked to the adjacent objeck or to a fixed point in stowed position, and i.nto which a coin or the like 4 is introduced to allow unlocking of the locking apparatus 3 and releasing the object by exerting a pull thereon, the locking apparatus 3 being designed to return the coin 4 when the object is taken back to the stowage space and :
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:.
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:~29~i 3355~
locked to an adjacent object or to a fixed point; in particular, said pull ensures successively the unblocking of the lock 3 and the unlocking of the object.
As will be recalled, the locking apparatus 3 includes a slide 5 which is movable under the action of the said pull and is fixable by an internal blocking member 6 and unblockable when a sufficient pull is exerted by coming into contact with the edge of the coin 4, the slide 5 serving to lock or unlock the lock 37 connPcting the object to an adjacent object or to a fixed point.
In the example illustrated, the blocking member is constituted by a stop or abutment 6 pivotally mounted on a pivot pin 9 which is substantially horizontal and perpendicular to the longitudinal axis X-X' of the locking apparatus 3. The stop 6 may be acted upo~ by a U-shaped-strip return-spring 10.
The movable slide 5 has a shoulder 11 at its upper surface opposite the free end of the stop 6. When no coin is introduced into the locking apparatus and when a pull is exerted on the object, the free end of the free stop moves into abutment against the shoulder 11, thus prevent-ing the unlocking of the locking apparatus. Figure 1 shows the travel a oF the slide during a pull onto the object without introducing any coin within the locking apparatus.
The locking apparatus 3 also includes a means 8 for retaining the coin 4 in either of two positions in which the coin is confined in the locking apparatus, i.e., an active retained position ensuring the unblocking of the locking apparatus 3 and an inacti~ve retained position,~
30~ respectively. ~s illustrated in the Figures and more particularly in Figure 4, the retalning means 8 consists of a projection cast integral with the internal face of the cover 3a of the locking apparatus and occupies a defin;ite position in the~re~cess 12 of the slit 13 extend-ing throughout the lo~cking apparatus, said~ projection B
being located~substantlally at the~longltudinal axis X-X' ;~J : ~ ~: '' :
:: :
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.. . . .. .
:
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~Z~335~
-of the said locking apparatus. Such a projection advantageously replaces the rocker and spring of the retaining means described in CAN~DIAN patent application n 431 721 filed on the.4th July 1983 and allows a considerable saving of time in mounting the locking apparatus and a higher reliability thereof (doing away with the movable parts) while at the same time hauing no unfavourable effect upon the operation of the device~ Indeed, up to a given value of the pulling action, i.e., up to a certain displacement of the slide 5 towards the left (in Figure 1) with respect to the projection 8, the latter retains the coin 4 in the slit 13 in its active position ensuring the unblocking ~f the locking apparatus 3. When this pre-determined value is exceeded, the coin 4 moves down in the slit 13 by gravity and assumes an inactive retained position as shown in dash-dotted lines in Figure 1. The coin 4 is maintained in a inactive position by resting, on the one hand, on the vertical wall 5a (in dash-dotted lines.
of the slide 5 and, on the other hand, on the upper curvilinear portion of the recovery funnel E. ~hen the object is taken back to the stowage space and is locked to an adjacent object or to a fixed point, the slide 5 moves to the right (in Figure 1) so as:to release the coin from the slit 13 and thus allow it to be recovered.
Figure 1 shows the total travel b of the slide during the unlocking of the connecting lock 37, this travel being defined between an abutment portion B integral with a fixing element 42 to which the locking apparatus 3 :is~
fixed and a rounded endmost edge of an openiny provided in -3û the slide along the axis X-X' and in which the abutment B
is located, the:convex portion of:this edge being directed towards the projection 8. ~ :
The lock 37 for connecting the object to an adjacent object whose locking:apparatus 3' is~repr~esented by dotted lines IS constituted by first, female means 19, 20 and second, male means 38, connected to the longitudinally :
.`, ~ ~ ~`: ` `
3L2~35~
endmost portion 39, 40 of the casing of the locking apparatus 3, respectively. The said first means connected to the longitudinal end 39 of the locking apparatus 3, i.e., as in the example illustrated, the end in the right portion of Figure 2, is constituted in particular by a clamp consisting of two unsymmetrical jaws 19, 20 acted upon by a spring 30 and so designed that only a connecting bar or locking pin 38 constituting the aforesaid second means of an adjacent object and whose diameter is perfectly calibrated, can fit in therebetween. In the example illustrated, the connecting bar 38 is connected to the endmost portion 40 of the casing of the locking apparatus 3 (in the laft portion of Figure 2) adjacent to the free end 41 of the slide 5, and, in the locked position, is spaced from the latter a sufficient distance to allow said bar to be introduced between the jaws 19", 20" (only the endmost portion of the latter being shown in dotted lines) of the locking apparatus of an adjacent object.
Thus, in the unlocked position, the free end 41 of the 20 slide 5, shown in Figure 1 in dotted lines, prevents the locking of the cart to another cart. Indeed, the space then formed between the connecting bar 38 and the free end 41 of the slide 5 is insufficient to allow the introduction of the bar 38 between the jaws 19", 20" of another cart.
Thus, in case a cart is abandoned, it is no longer possible, owing to such design of the locking apparatus, to use its locking pin for lockiny one's cart. In other ~ords, one cannot lock his cart to another cart unless the latter is already locked.
The movable slide 5 is also provided with 2 tongue 23 holding the jaws 19, 20 of the clamp in closed position.
To this end, the jaws 19, 20 are provided, on their inner-most port~ion in the locking apparatus, with mutually apposite recesses 36a, 36b whlch, in the locked po ition of the locking apparatus, define a space in which the tongue 23 is located so as to black the lacking apparatus in this position.
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.
35~
The locking apparatus 3 is secured to a cart by the fixing member 42 through the medium of appropriate fastening means 43 such as screws, bolts or the like Furthermore, there may be provided an oblong recess 44 for the calibrated bar 38 so as to compensate for the differences in height between the carts, and an opening 45 in the endmost portion 40 of the locking apparatus 3 so dimensioned as to provide a lateral clearance between the carts.
lû The operation of the locking apparatus has already been described in detail in CANADIAN pfltent application n 431 721 filed on the 4th July 1983 and, therefore, needs not be described again here.
Once the locking apparatus 3 is locked, on the one hand, by means of its jaws 19, 20, to the locking pin 3e~
of the locking apparatus 3' of an adjacent object and, on the other hand, by means of its locking pin 38, to the jaws 19", 20" of another adjacent cart, it is no longer possible, by introducing a coin, to release the object from the adjacent object standing on the right side (according to Figure 1). Indeed, a pull exerted on the object towards the left (according to Figure 1) results in a displacement, in the same direction, of the slide 5, i.e., a slide travel c defined between the free end 41 of the slide and the free ends of the jaws 19", 2û". Since the travel c is smaller than the total travel b of the slide 5 defined previously, the tongue 23 maintains the clamp jaws 19, 20 in the locked position.
The present invention allows removing the above draw-back.
To this end, the slide 5 is constituted by two portions,i.e., a first portion 5a constituting the slide portion serving to lock or unlock the connecting lock 37 of the obiect to an adiacent object, and a secor.d portion 5b completely separate from the first portion and located near the endmost portion 40 of the casing of the locking :: :
:
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.
. .
;
. ~. .
;~2~ 5~
apparatus 3. The said first and second portions are spaced from one another a distance d along the axis X-X' by an intermediate or shim element 5c in the form of a substantially rectangular metal plate. The plate 5c is located in a cavity defined between the first and second portions 5a and 5b and having two lateral walls perpen-dicular to the axis X-X' of ~igure 1 defined by two shoulders 5al and 5bl respectively, of the first and second portions adjacent to the free opposite sides 5cl 10 and 5c2 of the plate 5c, the upper and lower sides 5c3 and 5c4 of the plate 5c which are parallel to the axis X-X' being adjacent to the upper walls 5a3, 5b3 and the lower walls 5a4, 5b4 of the cavity. As shown particularly in Figure 2, the plate 5c bears partially by its face 5c5, on the one hand, against a face 5a2 of the first portion 5a perpendicularly connecting with the shoulder 5al and parallel l:o the axis X-X' and, on the other hand, against a face 5b2 of the second portion 5b perpendicularly connecting with the shoulder 5bl and parallel to the axis X-X', the said faces 5a2 and 5b2 constituting the bottom of the cavity in which the plate 5c is housed and connecting with the end edges 5a5 and 5b5, respectively, of the first and second portions 5a and 5b~and spaced a distance d. The width of the shoulders 5al and 5bl is substantially the same as the thickness of the plate 5c.
A flat face 5b6 parallel to the axis X-X' and spaced from the internal wall 3al of the cover 3a of the locking apparatus 3 connects with the shoulder 5bl~.
A resilient straight element 5d in the form of a thin metal plate bears upon the face of the metal plate 5b confronting the face 5c5 and connected at one of its free ends to the plate 5c through the medium of a hook portion 5dl extending through an~openin~g in the form of a slot Sc6~ provided~on the free side 5c2 adjacent to the shoulder 5bl. The resilient plat~e~5d extends beyond the plate 5c and has its other end~ secured between a corresponding flat ~ ~ :
: ., : , ' , , ~ :
-835~
face of the first portion 5a and a washer 5z pressedagainst the resilient plate 5d through the medium of, for example, a rivet or the like. It is understood that the plate 5c is maintained in position between the shoulders 5al and 5bl by the resilient plate 5d. Of course, the resilient plate 5d may be secured to the second portion 5b of the slide with the hook portion located in proximity to the shoulder Sal.
There also appears in Figures 2 and 3 a lock device including a special service key, particularly a magnetic key 50, adapted to be inserted into a corresponding lock hole 51 provided through the wall of the cover 3a of the locking apparatus 3 and opening into the interior of the latter in proximity to the end side 5c2 of the metal plate 5c, the axis Y-Y' of the lock hole being perpendicular to the plate 5c and approximately intersecting the longitud-inal axis X-X' of Figure 1, the plate side 5c3 being substantially aligned with the axis X-X'.
Figure 3 shows the magnetic key 50 inserted into its corresponding lock hole. In this position, a magnet 50a located at the free end of the key is placed adjacent to the face of the metal plate 5c opposed to the face 5c3 of the latter. The magnet then attracts the end portion of plate 5c including the side 5c2, which therefore is out-side the shoulder 5bl and bears upon the internal face 3al of the lateral wall of the cover 3a of the casing of the locking apparatus 3 so that the plate 5c is inclined with respec~t to the axis X-X'. Figure 3 shows the angle ~
of inclination of the upper side 5c3 of the plate 5c with 3û respect to the axis X-X'. By exerting a pull on the object, the first portion 5a of the slide 5 is displaced with respect to the second portion 5b in a direction towards the left in Figure 2. Simultaneously with this displacement of the first portion 5a, the end portion including the side 5c2 of the plate 5c enters the space defined between the face 5b6 and the internal face 3al of the lateral wall of the cover 3a. Figure 3 precisely L835~
shows the endmost position of the edge 5a5 of the first portion 5a at the end of the travel o e the latter (d then being substantially equal to 0). In -this endmost position of -the first portion 5a of the slide 5, the connecting lock 37 is unlocked, thus allowing the object to ba unlocked from the locking pin 38' of the adjacent cart. It is therefore understood that -the slide 5 thus designed allows an authorized person possessing the magnetic key 50 to unlock an intermediate object or car-t from a line of objects locked to one another.
The said authorized person can thereafter exert a push on the object resulting in a displacement towards the right of the portion 5a of the slide 5 till the endmost position of the latter, i.e. , till the separating distance d is again reached. The said person then withdraws the magnetic key 50 from its lock hole and the resilient plate acts upon and returns the free side 5c2 to a position opposite the shoulder 5bl, the plate 5c thus being again located between the shoulders 5al and 5bl as shown in Figure 2.
Of course, the lock hole 51 is a complex hole in order to prevent an unauthorized person from inserting therein a magnetized means allowing the aforedescribed unlocking.
Re~erring now more particularly to Figures 4 and 5, another form of a locking apparatus will be described.
It is well~understood that the identical elements of the two embodiments have the same reference numerals and are not to be described again. In the example shown in Figures 4 and 5~, the locking pin 38 is mounted on a support arbor 46 connected to the endmost portion 40 of the casing o~ the locking apparatus 3 (in the left-hand portion of F}gure 4 adjacent to the free end ~1 of the slide 5 and spaced from the latter, in the locked position, a sufficient distance to allow the pin 38 to be inserted between the ~ ~ ~
'. ...
:
: :
jaws of the locking apparatus of an adjacent object.
As shown in Figure 5, the support arbor ~6 extends through the opening 45 of the endmost portion 40 of the locking apparatus 3 (this opening being 50 dimensioned as to pro~ide a lateral clearance between carts) and is removable perpendicularly to the longitudinal axis X-X' of the casing of the locking apparatus by the use of a circlip element 47. The possibility of removing the support arbor 46 allows disrupting or breaking up ranks of carts in order to transfer them to other, less charged ranks.
The locking pin 38 includes a first cylindrical hollow portion 38a connecting at one of its ends with a second cylindrical shoulder portion 38b laterally abutting against a corresponding shoulder of the arbor 46. The diameter of each of the two cylindrical portions 38a, 38b is so calibrated as to allow it to be inserted between the jaws 19, 20.
As shown in Figure ~, the jaw 19 is so shaped that the calibrated cylindrical portion 38a of the pin 38 fits therein, whereas the jaw 20, which is smaller in length than the jaw 19, has an oblique surface 28 against which, in the locked position, the circular external surface of the shoulder 38b bears. Thus, the unlocking of the locking apparatus is made difficult for defrauders, the jaw 20 being partially covered by the cover 3a of plastics material. This covering of course also applies to the locking apparatus of Figures 1 and 2.
It should be noted that, when the support arbor 46 is removed from the locking apparatus 3 in order to disrupt a rank of carts, the locking pin 38 remains inserted between the jaws 19, 20 of the locking apparatus of the adjacent cart.
Fioure 6 is an exploded perspective view of the various locking apparatus elements described. There also ` appears in this Figure a slit 3b provided on the external - ` . ': ' ~ :
. ~ . .
~. , ~2483~
lateral wall oF the cover 3a of the locking apparatus casing 3c and through which the coin or the like 4 is introduced. The modification of the location of this slit offers the advantage of reducing the penetration of water and humidity capable of freezing the locking apparatus on frost days.
- :
: ::
:
~: : : : , :
: :
.: , . .
: , :
Claims (5)
1. A device for locking and releasing objects intended for public use, such as luggage carts, including a locking apparatus allowing each object to be automatically locked to an adjacent object or to a fixed point in stowage position and into which a coin can be inserted to allow unlocking of the locking apparatus and releasing of the object by exerting a pull thereon, said unlocking being ensured by said pull, said locking apparatus including a casing a slide displaceable by said pull an internal blocking member for fixing said slide and which is movable to a non-blocking position by coming into contact with an edge of the coin, and a connecting lock for locking the object to the adjacent object or to the fixed point, said slide serving to lock or unlock said connecting lock connecting the object to the adjacent object or to the fixed point;
wherein said slide is constituted by two portions, a first portion for said locking and unlocking of said connecting lock, a second portion separate from said first portion and located near an endmost portion of said casing of the locking apparatus, and additionally comprising an intermediate element housed between said first and second portions forming a housing therefor so as to maintain between said first and second portions of said slide a separating distance substantially equal to slide travel necessary for unlocking said connecting lock, means for allowing said first portion of said slide to be displaced by said pull with respect to said second portion over said separating distance, said intermediate element being partially displaceable out of said housing between said first and second portions by said means, thus unlocking the object from the adjacent object.
wherein said slide is constituted by two portions, a first portion for said locking and unlocking of said connecting lock, a second portion separate from said first portion and located near an endmost portion of said casing of the locking apparatus, and additionally comprising an intermediate element housed between said first and second portions forming a housing therefor so as to maintain between said first and second portions of said slide a separating distance substantially equal to slide travel necessary for unlocking said connecting lock, means for allowing said first portion of said slide to be displaced by said pull with respect to said second portion over said separating distance, said intermediate element being partially displaceable out of said housing between said first and second portions by said means, thus unlocking the object from the adjacent object.
2. A device according to claim 1, wherein said housing of said intermediate element comprises two lateral walls respectively defined by two shoulders of said first and second portions, said intermediate element is a substantially rectangular metal plate, two opposite sides of which are respectively adjacent to said two shoulders, and additionally comprising a resilient straight element for maintaining said substantially rectangular metal plate between said two shoulders, said resilient straight element having one of its ends connected to said intermediate element and its other end connected to one of said first and second portions of said slide, and wherein said means are in the form of a magnetic key adapted to pass through a hole in said casing of said locking apparatus for attracting an endmost portion of said plate which is one of said two opposite sides thereof, out of said corresponding shoulder.
3. A device according to claim 2, wherein said resilient straight element is a thin metal plate bearing flat against a face of said metal plate forming said intermediate element adjacent to said hole for the passage of said magnetic key and extending beyond said intermediate element plate to form said other end connected to one of said first and second portions of said slide.
4. A device according to claim 3, wherein said one end of said resilient element metal plate is provided with a hook portion passing through a corresponding opening of said intermediate element metal plate, and said other end of said resilient element is connected to said first portion of said slide.
5. The device of claim 4, wherein said other end of said resilient element is connected by riveting to said first slide portion.
Figure 1 Figure 2 ... .. .
Figure 1 Figure 2 ... .. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000579780A CA1264115A (en) | 1983-10-07 | 1988-10-11 | Device for locking and releasing objects intended for public use, such as luggage carts |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8316031 | 1983-10-07 | ||
| FR8316031A FR2553212B2 (en) | 1983-02-18 | 1983-10-07 | LOCKER AND DISSIGNER DEVICE FOR UTILITY OBJECTS, SUCH AS LUGGAGE CARTS |
| FR8413803 | 1984-09-07 | ||
| FR8413803A FR2570210B2 (en) | 1983-02-18 | 1984-09-07 | LOCKER AND DISSIGNER DEVICE FOR UTILITY OBJECTS, SUCH AS LUGGAGE CARTS |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000579780A Division CA1264115A (en) | 1983-10-07 | 1988-10-11 | Device for locking and releasing objects intended for public use, such as luggage carts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA1248359A true CA1248359A (en) | 1989-01-10 |
| CA1264115C CA1264115C (en) | 1990-01-02 |
Family
ID=26223615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 464832 Expired - Lifetime CA1264115C (en) | 1983-10-07 | 1984-10-05 | Device for locking and releasing objects intended for public use, such as luggage carts |
Country Status (12)
| Country | Link |
|---|---|
| BE (1) | BE900744A (en) |
| CA (1) | CA1264115C (en) |
| CH (1) | CH661605A5 (en) |
| DE (1) | DE3436610A1 (en) |
| DK (1) | DK476484A (en) |
| ES (1) | ES281813Y (en) |
| GB (1) | GB2149552B (en) |
| IT (1) | IT1196282B (en) |
| LU (1) | LU85571A1 (en) |
| NL (1) | NL186276C (en) |
| NO (1) | NO165419C (en) |
| SE (1) | SE8404948L (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4023396A1 (en) * | 1990-07-23 | 1992-01-30 | Systec Ausbausysteme Gmbh | SECURITY DEVICE FOR TRANSPORT CARTS |
| DE4115547A1 (en) * | 1991-05-13 | 1992-11-19 | Peter Fuchs | DEVICE FOR LIMITING SHOPPING CART ROWS |
| DE4133314A1 (en) * | 1991-10-08 | 1993-04-15 | Wanzl Metallwarenfabrik Kg | DEVICE FOR BORROWING TRUCK |
| EP0598142B1 (en) * | 1992-11-17 | 1996-01-10 | Peter Fuchs | Row length limiting device for supermarket trolleys |
| DE4331753A1 (en) * | 1993-09-18 | 1995-03-23 | Vendoret Holding Sa | Shopping or luggage cart with lock |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK143535C (en) * | 1978-10-12 | 1982-01-18 | Abacco Installation Aps | PLANT FOR DELIVERY AND RECEIPT OF CARRIAGES, ISRAEL SHOPPING CARTS AND TRACKERS |
| DE2820112A1 (en) * | 1978-05-09 | 1979-11-22 | Bosch Gmbh Robert | COUPLING MECHANICS WITH A LOCKING SYSTEM ACTUATED BY DEPOSIT TOKEN |
| DK145952C (en) * | 1980-11-28 | 1983-09-19 | Catena Locks As | AUTOMATIC LOADER FOR APPLICATION ON TRUCKS, ESPECIALLY PURCHASES AND TRUCKS |
| DK145550C (en) * | 1980-11-28 | 1983-05-09 | Catena Locks As | AUTOMATIC LASER FOR A PLANT WITH TRUCKS, ISRAEL PURCHASES AND TRANSPORT TRUCKS |
| DE3127940A1 (en) * | 1981-07-15 | 1983-02-03 | Peter 7500 Karlsruhe Fuchs | SECURING TO SHOPPING CART, CASE AND SIMILAR FACILITIES |
| DE8121677U1 (en) * | 1981-07-23 | 1981-12-03 | Sonnendorfer, Horst, 8034 Germering | DEVICE FOR ENSURING THE RETURN OF RENTED SHOPPING CART |
| FR2545246B2 (en) * | 1983-02-18 | 1988-03-11 | Mors | LOCKER AND DISSIGNER DEVICE FOR UTILITY OBJECTS, SUCH AS LUGGAGE CARTS |
-
1984
- 1984-10-02 LU LU85571A patent/LU85571A1/en unknown
- 1984-10-03 SE SE8404948A patent/SE8404948L/en not_active Application Discontinuation
- 1984-10-03 BE BE0/213771A patent/BE900744A/en not_active IP Right Cessation
- 1984-10-04 CH CH4774/84A patent/CH661605A5/en not_active IP Right Cessation
- 1984-10-04 GB GB08425140A patent/GB2149552B/en not_active Expired
- 1984-10-04 DK DK476484A patent/DK476484A/en not_active Application Discontinuation
- 1984-10-05 DE DE19843436610 patent/DE3436610A1/en active Granted
- 1984-10-05 NL NLAANVRAGE8403037,A patent/NL186276C/en not_active IP Right Cessation
- 1984-10-05 ES ES1984281813U patent/ES281813Y/en not_active Expired
- 1984-10-05 CA CA 464832 patent/CA1264115C/en not_active Expired - Lifetime
- 1984-10-05 IT IT23021/84A patent/IT1196282B/en active
- 1984-10-05 NO NO844013A patent/NO165419C/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES281813U (en) | 1985-02-16 |
| NL8403037A (en) | 1985-05-01 |
| DK476484D0 (en) | 1984-10-04 |
| LU85571A1 (en) | 1985-04-02 |
| IT1196282B (en) | 1988-11-16 |
| IT8423021A1 (en) | 1986-04-05 |
| IT8423021A0 (en) | 1984-10-05 |
| SE8404948L (en) | 1985-04-08 |
| ES281813Y (en) | 1985-10-16 |
| NL186276C (en) | 1990-10-16 |
| GB2149552B (en) | 1987-09-23 |
| CH661605A5 (en) | 1987-07-31 |
| NO165419B (en) | 1990-10-29 |
| CA1264115C (en) | 1990-01-02 |
| GB8425140D0 (en) | 1984-11-07 |
| NO844013L (en) | 1985-04-09 |
| DE3436610C2 (en) | 1989-11-09 |
| DE3436610A1 (en) | 1985-04-25 |
| SE8404948D0 (en) | 1984-10-03 |
| BE900744A (en) | 1985-02-01 |
| DK476484A (en) | 1985-04-08 |
| GB2149552A (en) | 1985-06-12 |
| NO165419C (en) | 1991-02-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 20060110 |