EP1484721A2 - Coin-operated lock for supermarket carts, luggage trolleys and the like - Google Patents
Coin-operated lock for supermarket carts, luggage trolleys and the like Download PDFInfo
- Publication number
- EP1484721A2 EP1484721A2 EP04012698A EP04012698A EP1484721A2 EP 1484721 A2 EP1484721 A2 EP 1484721A2 EP 04012698 A EP04012698 A EP 04012698A EP 04012698 A EP04012698 A EP 04012698A EP 1484721 A2 EP1484721 A2 EP 1484721A2
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- EP
- European Patent Office
- Prior art keywords
- coin
- key
- operated lock
- token
- slit
- 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.)
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Classifications
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- 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
- G07F7/0654—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 in which the lock functions according to a "pinching of the token" principle, i.e. the token is held between two members
Definitions
- the present invention relates to coin-operated locks for supermarket carts, luggage trolleys and the like, serving the function of securing, typically by means of chains, the carts arranged consecutively in rows, and to allow their withdrawal by users only as a result of the introduction of a coin or token into the coin-operated lock.
- the coin-operated lock can also secure the cart to a fixed body, instead of to an adjacent cart.
- Such coin-operated locks traditionally comprise a case having a slit for the introduction/extraction of the coin or token, and an opening for the introduction/extraction of the key. Inside the case is housed a mechanism comprising the following elements:.
- the coin-operated lock mechanism comprises a plurality of distinct elements assembled within the case, which are most metallic and include one or more springs.
- coin operated locks are applied on the front side of the cart, at a bar that constitutes a thrust handle: the bulk of known coin operated locks is ill suited with the need to use the thrust bar for the application, according to current tendencies, of accessories such as, in particular, displays of information for the user.
- the object of the present invention is to overcome the aforesaid drawbacks, and to provide a coin operated lock of the type described above whose mechanism has an extremely simplified arrangement, totally lacking metallic springs, and that is simple and economical to fabricate and has very limited bulk, thereby drastically reducing the dimensions of the case and hence of the coin operated lock as a whole.
- said object is achieved thanks to the fact that the aforesaid means for locking the key, the aforesaid actuator means, the aforesaid means for retaining the coin or token and the aforesaid disengagement means are formed in a single piece.
- the aforesaid means for extracting the key and/or the aforesaid means for expelling the coin or token are formed in a single piece with said means for locking the key, said actuator means, said means for retaining the coin or token and said disengagement means.
- the aforesaid single piece is constituted by a body made of moulded plastic material, oscillating about a single rotation pivot.
- Said pivot is preferably but not necessarily borne by the case.
- the actuator means conveniently coincide with the means for ejecting the coin or token and advantageously consist of an elastically springing arm of said single piece, which is integrally formed with an abutment with which co-operates a complementary stop formed in said case to retain the means for locking the key in the operative position; said abutment being disengageable from said complementary stop by the coin or token as a result of its introduction into the slit of the case, and being re-engageable with said complementary stop upon extraction of said coin or token relative to said slit.
- the means for locking the key can consist of at least one hook-shaped appendage of said single piece, engageable with an abutment part of the key as a result of its insertion into the opening of the case
- said abutment part of the key is formed by a generally cylindrical head
- the locking means include a pair of said hook appendages substantially configured in the manner of a fork for the engagement of said cylindrical head.
- a coin-operated lock for supermarket carts, luggage trolleys and the like comprises a case 1 formed by a small, flattened parallelepiped box including a base 2 and a lid 3.
- the box 1 has a slit 4 for the introduction/extraction of a coin or token designated by the reference M in Figures 3-8, and an opening 5 for the introduction/extraction of a key generically designated by the reference 6 in Figures 2-8.
- the opening 5 is formed by a circular hole, and said hole is positioned on one of the smaller lateral walls of the case 1, whilst the slit 4 is positioned on another one of the smaller lateral walls of said case 1.
- the case 1 of the coin-operated lock is applied to a cart, advantageously in the area of its thrust bar, in the position shown in Figure 1, i.e. with the slit 4 in the upper lateral wall.
- the wall of the case 1 bearing the hole 5 is the dorsal one, i.e. the one oriented towards the rear side of the cart.
- the case 1 contains a mechanism whereby when the key 6 is inserted in the hole 5, the introduction of the coin or token M through the slit 4 causes its extraction and, vice versa, when the coin or token M has been inserted in the case 1 through the slit 4, the introduction of the key 6 in the hole 5 causes its extraction.
- said mechanism is in practice constituted by a single piece, advantageously o moulded plastic material, globally designated by the reference 7.
- the embodiment of the piece 7 that shall be described below is the one corresponding to a particular and innovative conformation of the key 6 which, as shown in the drawings, consists of a grip body 8 from an end whereof projects a cylindrical element 9 followed by a cylindrical tang of lesser diameter 10 bearing an end head 11, also cylindrical, of greater diameter.
- the diameter of the cylindrical head 11 is slightly smaller than that of the hole 5, to allow its passage through said hole.
- the grip body 8 bears, at the opposite end, a chain 12 which is also advantageously made of plastic material, serving to anchor the key 6 to another cart.
- the key 6 is able to operate the coin-operated lock without the user's having to be concerned with introducing it through the hole 5 in a particular angular position, as is the case instead with traditional keys which, instead of the cylindrical head 11, are provided with a holed plate or the like.
- traditional keys which, instead of the cylindrical head 11, are provided with a holed plate or the like.
- the circular hole 5 shall be replaced by a slit or the like.
- the piece 7 which forms the coin-operated lock mechanism in a single piece comprises a central body 13 having a through hole 14, rotatably engageable on a pivot 15 projecting from the larger wall 16 of the base 2 of the case 1.
- the pivot 15 projects perpendicularly to the wall 16, integrally therewith, and is advantageously formed at its free end with a terminal 17 capable of contracting elastically in sectors which, when the piece 7 is mounted, is able axially to traverse its hole 14, engaging then in snap-on fashion beyond it.
- this characteristic is optional.
- the pivot 15 could be borne, instead of by the case 1, by the piece 7 (for example, integrally therewith) and could rotatably engage a corresponding support or hole in the case.
- the variant of the piece 7 shown in Figure 11 corresponds to the configuration thereof that is usable with a traditional key, or with holed engagement plate: in this case, the piece 7 differs from the one described previously solely because it has a single latching appendage 21 and a single thrust appendage 22, which in this case, too, are aligned to each other.
- Said formation essentially comprises three components: an inclined slide projection 27, situated below the rear end of the slit 4, an arresting seat 28 positioned below the front end of the slit 4, and an arched track 29 extending below the arresting recess 28.
- the arresting recess 28 and the track 29 co-operate with the terminal abutment 26 of the springing arm 23 of the piece 7.
- the piece 7 In the assembled condition of the coin-operated lock the piece 7 is mounted oscillating, as explained previously, on the pivot 15, whose axis is orthogonal to the directions of introduction/extraction F of the coin or token M and H of the key 6.
- the cradle-like seat 18 of the piece 7 is oriented towards the wall 16 of the base 2, i.e. towards the inclined guiding slide 27, and it is positioned below the slit 4, whilst the latching appendages 21 are oriented towards the hole 5.
- the initial position shown in Figure 3 is one in which the key 6 is engaged and locked in the coin-operated lock, by effect of the engagement of its cylindrical head 11 by the appendages 21 of the piece 7.
- the cylindrical head 11 is interposed between the latching appendages 21 and the thrust appendages 22, and the springing arm 23 is in a non-deformed position with its end abutment 26 engaged within the stopping recess 28.
- the piece 7 is locked in rotation relative to the case 1, thereby preventing by means of the latching appendages 21 the disengagement of the cylindrical head 11 and the extraction of the key 6 from the hole 5.
- the coin or token M must be introduced through the slit 4.
- the introduction of the coin M is conveniently performed from above, at first by simple gravity and then by means of a thrust operated manually downwards.
- the coin M is made to roll or slide along the inclined guiding slide 27 in the direction of insertion F.
- Said direction of insertion F is clearly directed obliquely, parallel to the slide 27, so that during its insertion the coin M moves towards the front end of the slit 4, intercepting with its lateral edge the end abutment 26 of the springing arm 23 in the manner shown in Figure 4.
- the coin M is entirely positioned below the front end of the slit 4, whilst simultaneously the latching appendages 21 free the cylindrical head 11 of the key 6 and the appendages 22 apply to said head 11 a thrust in the direction of the opening 5.
- the key 6 can be extracted from the case 1 through the opening 5, freeing the coin-operated lock and hence allowing the removal of the cart.
- the coin or token M remains positioned within the case 1 both by gravity, and by the presence of the securing arm 19 which does not allow it to exit from the slit 4.
- the other securing arm holds the coin M against the wall 16 of the base 12, preventing it from being subjected to skipping within the case 1 during the movements of the cart whereon the coin-operated lock is applied.
- the key 6 is thus blocked relative to the case 1, whilst the coin M can be withdrawn and extracted manually through the slit 4.
- This manoeuvre can be facilitated by applying an additional thrust on the key 6 towards the interior of the coin-operated lock, in such a way as to obtain a clockwise angular extra-travel of the piece 7 lifting the cradle-like seat 18 towards the slit 4 and, consequently, the coin M upwards.
- the arresting recess 28 it will naturally be necessary for the arresting recess 28 to be larger than the end abutment 26.
- the piece 7 may be adapted for use with traditional keys, and it may be formed with the pivot 15, also integrally.
- the positions of the slit 4 and of the opening 5 may be different from those illustrated, and such that the direction of insertion/extraction F and H respectively of the coin or token M and of the key 6 are different from those described with reference to the example. In any case, preferably said directions will not be mutually aligned as is normally the case in conventional coin-operated locks.
- the engagement between the abutment 26 of the springing arm 23 and the seat 28 of the case 1, in the inserted condition of the key 6 in the absence of the coin or token M, may be such that, if a force exceeding a threshold value is applied to extract the key, the piece 7 is freed in rotation in order to disengage the key and safeguard the lock-chain-cart system from breakage.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Coin-Freed Apparatuses For Hiring Articles (AREA)
- Handcart (AREA)
- Lock And Its Accessories (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Vehicle Step Arrangements And Article Storage (AREA)
Abstract
Description
- The present invention relates to coin-operated locks for supermarket carts, luggage trolleys and the like, serving the function of securing, typically by means of chains, the carts arranged consecutively in rows, and to allow their withdrawal by users only as a result of the introduction of a coin or token into the coin-operated lock. The coin-operated lock can also secure the cart to a fixed body, instead of to an adjacent cart.
- Such coin-operated locks traditionally comprise a case having a slit for the introduction/extraction of the coin or token, and an opening for the introduction/extraction of the key. Inside the case is housed a mechanism comprising the following elements:.
- means for locking the key, movable between an operative position of locking the key inserted in said opening and an inoperative position of unlocking for freeing the extraction of the key from said opening,
- actuator means operated by effect of the insertion of the coin or token into said slit to actuate the displacement of said locking means from said operative position to said inoperative position,
- means for extracting the key as a result of the displacement of said means for locking from said operative position to said inoperative position,
- retaining means for holding the coin or token within the case as a result of the displacement of said locking means to the inoperative position,
- means for disengaging the means for retaining the coin or token, operated by effect of the insertion of the key into said opening, and
- means for ejecting the coin or token through said slit as a result of the operation of said disengagement means.
- Coin-operated locks of this kind are known, for example, from the patent document EP-A-1035523 by SYSTEC, as well as from documents GB-A-2276482 and DE-A-19720557.
- In all these known solutions, the coin-operated lock mechanism comprises a plurality of distinct elements assembled within the case, which are most metallic and include one or more springs.
- These solutions are all extremely complicated, both from the viewpoint of fabrication and with regard to the assembly of their components, and thus are costly. Moreover, most of such known coin operated locks are heavy and above all bulky, because of the dimensions of the related cases, necessary to contain the various components of the mechanisms. The coin operated lock according to the aforementioned patent document EP-A-1035523 by SYSTEC has relatively limited bulk, but does not solve the problems connected with complexity and construction and costs.
- Normally, coin operated locks are applied on the front side of the cart, at a bar that constitutes a thrust handle: the bulk of known coin operated locks is ill suited with the need to use the thrust bar for the application, according to current tendencies, of accessories such as, in particular, displays of information for the user.
- The object of the present invention is to overcome the aforesaid drawbacks, and to provide a coin operated lock of the type described above whose mechanism has an extremely simplified arrangement, totally lacking metallic springs, and that is simple and economical to fabricate and has very limited bulk, thereby drastically reducing the dimensions of the case and hence of the coin operated lock as a whole.
- According to the invention, said object is achieved thanks to the fact that the aforesaid means for locking the key, the aforesaid actuator means, the aforesaid means for retaining the coin or token and the aforesaid disengagement means are formed in a single piece.
- Advantageously, also the aforesaid means for extracting the key and/or the aforesaid means for expelling the coin or token are formed in a single piece with said means for locking the key, said actuator means, said means for retaining the coin or token and said disengagement means.
- According to a preferred embodiment of the invention the aforesaid single piece is constituted by a body made of moulded plastic material, oscillating about a single rotation pivot. Said pivot is preferably but not necessarily borne by the case.
- The actuator means conveniently coincide with the means for ejecting the coin or token and advantageously consist of an elastically springing arm of said single piece, which is integrally formed with an abutment with which co-operates a complementary stop formed in said case to retain the means for locking the key in the operative position; said abutment being disengageable from said complementary stop by the coin or token as a result of its introduction into the slit of the case, and being re-engageable with said complementary stop upon extraction of said coin or token relative to said slit.
- The means for locking the key can consist of at least one hook-shaped appendage of said single piece, engageable with an abutment part of the key as a result of its insertion into the opening of the case According to an optional characteristic of the invention, said abutment part of the key is formed by a generally cylindrical head, and the locking means include a pair of said hook appendages substantially configured in the manner of a fork for the engagement of said cylindrical head. In this way, the key can advantageously be introduced into the coin operated lock without a predetermined orientation, i.e. in any angular position relative to its direction of introduction into the opening of the case.
- Additional characteristics and advantages shall become readily apparent from the description that follows with reference to the accompanying drawings, provided purely by way of non limiting example, in which:
- Figure 1 is a perspective schematic view of a coin operated lock for carts according to the invention,
- Figure 2 is an exploded partial perspective view of the coin operated lock, which shows its inner mechanism together with a particular key, usable with said mechanism,
- Figures 3 and 8 schematically show elevation views of the operation of the mechanism of the coin operated lock respectively during the introduction of the coin or token to obtain the extraction of the key (Figures 3, 4 and 5) and during the introduction of the key to obtain the extraction of the coin or token (Figures 6, 7 and 8),
- Figure 9 shows a perspective side view of the single piece constituting the mechanism of the coin operated lock,
- Figure 10 shows a perspective view of the single piece of Figure 9 from the other side, and
- Figure 11 is a variant of Figure 9.
- Referring initially to Figure 1, a coin-operated lock for supermarket carts, luggage trolleys and the like according to the invention comprises a
case 1 formed by a small, flattened parallelepiped box including abase 2 and alid 3. - The
box 1 has aslit 4 for the introduction/extraction of a coin or token designated by the reference M in Figures 3-8, and anopening 5 for the introduction/extraction of a key generically designated by thereference 6 in Figures 2-8. - In the case of the illustrated example, and in consideration of the conformation of the
key 6 which shall be described below, theopening 5 is formed by a circular hole, and said hole is positioned on one of the smaller lateral walls of thecase 1, whilst theslit 4 is positioned on another one of the smaller lateral walls of saidcase 1. More specifically, in the illustrated example thecase 1 of the coin-operated lock is applied to a cart, advantageously in the area of its thrust bar, in the position shown in Figure 1, i.e. with theslit 4 in the upper lateral wall. In this case, the wall of thecase 1 bearing thehole 5 is the dorsal one, i.e. the one oriented towards the rear side of the cart. - With this arrangement, as shall become more readily apparent below, the direction of introduction/extraction of the coin or token M and of the
key 6, respectively designated by the arrows F and H in Figures 3-8, are substantially orthogonal to each other or, more properly, positioned obliquely. However, this is not at all necessary, since such directions may differ from those shown. - The
case 1 contains a mechanism whereby when thekey 6 is inserted in thehole 5, the introduction of the coin or token M through theslit 4 causes its extraction and, vice versa, when the coin or token M has been inserted in thecase 1 through theslit 4, the introduction of thekey 6 in thehole 5 causes its extraction. - According to the essential characteristic of the invention, said mechanism is in practice constituted by a single piece, advantageously o moulded plastic material, globally designated by the
reference 7. - The embodiment of the
piece 7 that shall be described below is the one corresponding to a particular and innovative conformation of thekey 6 which, as shown in the drawings, consists of agrip body 8 from an end whereof projects acylindrical element 9 followed by a cylindrical tang oflesser diameter 10 bearing anend head 11, also cylindrical, of greater diameter. The diameter of thecylindrical head 11 is slightly smaller than that of thehole 5, to allow its passage through said hole. Thegrip body 8 bears, at the opposite end, achain 12 which is also advantageously made of plastic material, serving to anchor thekey 6 to another cart. - With such a configuration, the
key 6 is able to operate the coin-operated lock without the user's having to be concerned with introducing it through thehole 5 in a particular angular position, as is the case instead with traditional keys which, instead of thecylindrical head 11, are provided with a holed plate or the like. However, as shall be seen below, even such a traditional key may be used with the coin-operated lock according to the invention: in this case, thecircular hole 5 shall be replaced by a slit or the like. - With express reference to the use with the
key 6 described above, thepiece 7 which forms the coin-operated lock mechanism in a single piece comprises acentral body 13 having a throughhole 14, rotatably engageable on apivot 15 projecting from thelarger wall 16 of thebase 2 of thecase 1. Thepivot 15 projects perpendicularly to thewall 16, integrally therewith, and is advantageously formed at its free end with aterminal 17 capable of contracting elastically in sectors which, when thepiece 7 is mounted, is able axially to traverse itshole 14, engaging then in snap-on fashion beyond it. However, this characteristic is optional. Moreover, thepivot 15 could be borne, instead of by thecase 1, by the piece 7 (for example, integrally therewith) and could rotatably engage a corresponding support or hole in the case. - It should be stated that the term "upper", "lower", "front" and "rear" and the like as used hereinafter are understood to refer to the position of the
piece 7 within thecase 1 in the condition of employment of the coin-operated lock in which theslit 4 is oriented upwards and theopening 5 is positioned posteriorly, with particular reference to Figures 9 and 10 the piece has the following integral parts: - a cradle shaped
seat 18 to receive a coin or token M in support, formed laterally and anteriorly to thecentral body 13; - a first and a
second arm cradle seat 18 and projecting upwards with respect thereto; - a pair of
rear appendages 21 projecting below thecentral body 13 and defining a latching fork; - a pair of
central appendages 22, also projecting inferiorly to thecentral body 13, aligned with thelatching appendages 21 and constituting a thrust device; - an
elongated springing arm 23 having a general L shape and projecting anteriorly to thecentral body 13, with anarm 24 of greater length springing underneath thecradle seat 18 and an arm withsmaller length 25 folded anteriorly to saidcradle seat 18 and whose free end is formed with arounded abutment enlargement 26. - The variant of the
piece 7 shown in Figure 11 corresponds to the configuration thereof that is usable with a traditional key, or with holed engagement plate: in this case, thepiece 7 differs from the one described previously solely because it has asingle latching appendage 21 and asingle thrust appendage 22, which in this case, too, are aligned to each other. - To the mechanism of the coin-operated lock constituted by the
piece 7 described above is operatively associated a formation provided, within thecase 1, on thewall 16 of thebase 2. Said formation essentially comprises three components: aninclined slide projection 27, situated below the rear end of theslit 4, an arrestingseat 28 positioned below the front end of theslit 4, and anarched track 29 extending below the arrestingrecess 28. As will be seen below, the arresting recess 28 and thetrack 29 co-operate with theterminal abutment 26 of the springingarm 23 of thepiece 7. - In the assembled condition of the coin-operated lock the
piece 7 is mounted oscillating, as explained previously, on thepivot 15, whose axis is orthogonal to the directions of introduction/extraction F of the coin or token M and H of thekey 6. The cradle-like seat 18 of thepiece 7 is oriented towards thewall 16 of thebase 2, i.e. towards the inclinedguiding slide 27, and it is positioned below theslit 4, whilst thelatching appendages 21 are oriented towards thehole 5. - Referring now to Figures 3-5 and 6-8, the operation of the coin-operated lock according to the invention shall be described.
- It is supposed that the initial position, shown in Figure 3, is one in which the
key 6 is engaged and locked in the coin-operated lock, by effect of the engagement of itscylindrical head 11 by theappendages 21 of thepiece 7. Thecylindrical head 11 is interposed between thelatching appendages 21 and thethrust appendages 22, and thespringing arm 23 is in a non-deformed position with itsend abutment 26 engaged within thestopping recess 28. In this way, thepiece 7 is locked in rotation relative to thecase 1, thereby preventing by means of thelatching appendages 21 the disengagement of thecylindrical head 11 and the extraction of thekey 6 from thehole 5. - To allow the extraction of the
key 6, in order to allow the removal of the cart whereon the coin-operated is installed in use, the coin or token M must be introduced through theslit 4. The introduction of the coin M is conveniently performed from above, at first by simple gravity and then by means of a thrust operated manually downwards. By effect of said thrust, the coin M is made to roll or slide along the inclined guidingslide 27 in the direction of insertion F. Said direction of insertion F is clearly directed obliquely, parallel to theslide 27, so that during its insertion the coin M moves towards the front end of theslit 4, intercepting with its lateral edge theend abutment 26 of the springingarm 23 in the manner shown in Figure 4. In this way, continuing the insertion of the spring M in thecase 1, the end abutment is disengaged by the arrestingrecess 28, by effect of the elastic deformation of the springingarm 23. This condition substantially occurs when the coin M is positioned on the cradle-like seat 18. - Starting from said position, the
piece 7, no longer locked in rotation by the engagement between theend abutment 26 and the arrestingrecess 28, rotates about the axis of thepivot 15 counter-clockwise with reference to the figures, under the thrust applied to the coin M during the last phase of its introduction through theslit 4. By effect of said rotation, during which theend abutment 26 moves freely along thearched track 29 with the springingarm 23 not stressed and hence not deformed, the coin M is entirely positioned below the front end of theslit 4, whilst simultaneously the latchingappendages 21 free thecylindrical head 11 of thekey 6 and theappendages 22 apply to said head 11 a thrust in the direction of theopening 5. - At the end of this phase, shown in Figure 5, the
key 6 can be extracted from thecase 1 through theopening 5, freeing the coin-operated lock and hence allowing the removal of the cart. The coin or token M remains positioned within thecase 1 both by gravity, and by the presence of the securingarm 19 which does not allow it to exit from theslit 4. The other securing arm holds the coin M against thewall 16 of thebase 12, preventing it from being subjected to skipping within thecase 1 during the movements of the cart whereon the coin-operated lock is applied. - At the end of the use of the cart, to recover the coin M it is necessary to re-insert the key 6 into the
case 1 of the coin-operated lock. When thecylindrical head 11 traverses theopening 5, it intercepts the thrust appendages 21, in the manner shown in Figure 6. An additional thrust applied to the key 6 towards the interior of the coin-operated lock causes, by effect of the interaction between thehead 11 and the thrust appendages 22, thepiece 7 to rotate clockwise with reference to the figures. By effect of said rotation, the coin M is thrust on theinclined slide 27 towards theslit 4, whilst simultaneously the latchingappendages 21 engage behind thehead 11. The extraction of the coin or token M through theslit 4 is operated not only by the clockwise rotation of thepiece 7, but also by the thrust action operated by theend abutment 26 when, during the rotation, it intercept the lateral edge of the coin M. When saidend abutment 26, at the end of its displacement along thetrack 29, reaches the arrestingrecess 28, it is engaged in snap-on fashion within saidrecess 28 by effect of the elastic deformation of the springingarm 23 and of its subsequent immediate return to the undeformed position, in the manner shown in Figure 7, possibly operating a more or less marked elastic ejection effect on the coin M. It should be noted that said engagement, thanks to the rounded conformations of theabutment 26 and of the part of thetrack 29 that is adjacent to therecess 28, occurs smoothly and with reduced wear of said parts. - The
key 6 is thus blocked relative to thecase 1, whilst the coin M can be withdrawn and extracted manually through theslit 4. This manoeuvre can be facilitated by applying an additional thrust on the key 6 towards the interior of the coin-operated lock, in such a way as to obtain a clockwise angular extra-travel of thepiece 7 lifting the cradle-like seat 18 towards theslit 4 and, consequently, the coin M upwards. To allow said additional angular rotation of thepiece 7, it will naturally be necessary for the arrestingrecess 28 to be larger than theend abutment 26. - It will be readily apparent from the previous description that the
piece 7, which can be fabricated and assembled with thecase 1 in extremely simple and economical fashion, in practice groups all the operative components of the mechanism of the coin-operated lock, i.e. the means for locking the key (latching appendages 21) and the related actuator means to actuate its unlocking (spring arm 23 and related end abutment 26), the means for retaining the coin or token M (seat 18 and securingarms 19, 20), the means for extracting the means for retaining the coin or token M (thrust appendages 22) which also operate as means for extracting thekey 6, and the means for ejecting the coin or token M (also constituted by the springingarm 23 with the end abutment 26). Said operative components thus grouped in thepiece 7 co-operate with the simple formations provided in thewall 16 of the case 1 (pivot 15, guidingslide 27, arrestingrecess 28 and track 29) to complete the operativeness of the mechanism, in equally simple and economical fashion from the construction point of view. The entire coin-operated lock can thus be advantageously obtained by moulding plastic material, with the exclusion of any metallic parts and in particular of springs, in just three parts: thecase 1 formed by thebase 2 with thepivot 15 and by thelid 3, and thepiece 7. - Naturally, the construction details and the embodiments may vary widely from what is described and illustrated herein, without thereby departing from the scope of the present invention as defined in the claims that follow. Thus, as clarified above, the
piece 7 may be adapted for use with traditional keys, and it may be formed with thepivot 15, also integrally. Moreover, the positions of theslit 4 and of theopening 5 may be different from those illustrated, and such that the direction of insertion/extraction F and H respectively of the coin or token M and of the key 6 are different from those described with reference to the example. In any case, preferably said directions will not be mutually aligned as is normally the case in conventional coin-operated locks. - Lastly, it should be noted that the engagement between the
abutment 26 of the springingarm 23 and theseat 28 of thecase 1, in the inserted condition of the key 6 in the absence of the coin or token M, may be such that, if a force exceeding a threshold value is applied to extract the key, thepiece 7 is freed in rotation in order to disengage the key and safeguard the lock-chain-cart system from breakage.
Claims (26)
- A coin-operated lock for supermarket carts, luggage trolleys and the like, comprising a case (1) having a slit (4) for the introduction/extraction of a coin or token (M) and an opening for the introduction/extraction of a key (6), and a mechanism housed inside the case and including:means (21) for locking the key (6) movable between an operative position for locking the key (6) inserted in said opening (5) and an inoperative, unlocking position to free the extraction of the key (6) from said opening (5),actuator means (23, 26) operated by effect of the insertion of the coin or token (M) into said slit (4) to actuate the displacement of said locking means (21) from said operative position to said inoperative position,means (22) for extracting the key (6) as a result of the displacement of said locking means (21) from said operative position to said inoperative position,retaining means (18, 19, 20) to hold said coin or token (M) in the case (1) as a result of the displacement of said locking means (21) to the inoperative position,means (22) for disengaging said means (18, 19, 20) for retaining the coin or token (M) operated by effect of the introduction of the key (6) into said opening (5), andmeans (23, 26) for ejecting the coin or token (M) through said slit (4) as a result of the operation of said disengagement means (22),
- Coin-operated lock as claimed in claim 2, characterised in that said means (22) for extracting the key (6) are formed in a single piece (7) with said locking means (21), said actuator means (23, 26), said retaining means (18, 19, 20) and said disengagement means (22).
- Coin-operated lock as claimed in claim 1 or in claim 2, characterised in that said means (23, 26) for ejecting the coin o token (M) are formed in a single piece (7) with said locking means (21), said actuator means (23, 26), said retaining means (18, 19, 20) and said disengagement means (22).
- Coin-operated lock as claimed in any of the claims 1 through 3, characterised in that said single piece (7) is capable of oscillating around a rotation pivot (15).
- Coin-operated lock as claimed in any of the previous claims, characterised in that said single piece (7) is integrally formed with a reception seat (18) for the coin or token (M) introduced into said slit (4).
- Coin-operated lock as claimed in claim 5, characterised in that said reception seat is shaped as a cradle (18).
- Coin-operated lock as claimed in claim 5 or claim 6, characterised in that said means for retaining the coin or token (M) comprise at least one securing arm (19, 20) operatively associated to said reception seat (18).
- A coin-operated lock as claimed in claim 5 or claim 6, characterised in that with said reception seat (18) co-operates an inclined guiding slide (27) formed within said case (1) in correspondence with said slit (4).
- A coin-operated lock as claimed in claim 8, characterised in that said inclined guiding slide (27) determines a direction of introduction/extraction (F) of the coin or token (M) directed obliquely with respect to said slit (4).
- Coin-operated lock as claimed in claim 2, characterised in that said actuator means (23, 26) coincide with said means (23, 26) for ejecting the coin or token (M).
- Coin-operated lock as claimed in claim 10, characterised in that said actuator means and said ejection means are constituted by an elastically springing arm (23).
- Coin-operated lock as claimed in claim 1, characterised in that said springing arm (23) is formed integrally with a terminal abutment (26) with which co-operates a complementary stop (28) formed in said case (1) to hold said means (21) for locking the key (6) in said operative position; said end abutment (26) being disengageable from said complementary stop (28) by the coin or token (M) as a result of its introduction into said slit (4) and being re-engageable with said complementary stop (28) when said coin or token (M) is extracted relative to said slit (4).
- A coin-operated lock as claimed in any of the previous claims, characterised in that said means for locking the key (6) consist of at least one hook appendage (21) of said single piece (7), engageable with an abutment part (11) of said key (6) as a result of its insertion through said opening (5).
- Coin-operated lock as claimed in claim 13, characterised in that said locking means include a pair of said hook appendages (21) substantially configured in the form of a fork (21).
- Coin-operated lock as claimed in claim 13 or claim 14, characterised in that said means for extracting the key (6) and said means for disengaging said means (18, 19, 20) for retaining the coin or token (M) consist of at least one thrust appendage (22) of said single piece (7).
- A coin-operated lock as claimed in claim 15, characterised in that said at least one thrust appendage (22) is aligned with said at least one hook appendage (21) along the direction of introduction/extraction (H) of the key (6).
- A coin-operated lock as claimed in claim 15 or claim 16, characterised in that said at least one thrust appendage (22) is adapted to command, by means of said key (6), an extra travel of said ejection means (23, 26) to facilitate the extraction of the coin or token (M) from said slit (4).
- Coin-operated lock as claimed in claim 4, characterised in that said rotation pivot (15) is formed integrally with one of said case (1) and single piece (7).
- Coin-operated lock as claimed in claim 4 or claim 18, characterised in that said rotation pivot (15) is provided with a rotatable rapid coupling formation for said single piece (7).
- Coin-operated lock as claimed in one or more of the previous claims, characterised in that said case (1) is formed in the form of a flattened generally parallelepiped box.
- Coin-operated lock as claimed in claim 20, characterised in that said slit (4) for the introduction/extraction of the coin or token (M) is formed on an upper wall of said box (1) and said opening (5) for the introduction/extraction of the key (6) is formed on a lateral wall of said box (1).
- Coin-operated as claimed in any of the previous claims, characterised in that said single piece (7) is made of moulded plastic material.
- A key (6) usable in a coin-operated lock as claimed in claim 14, characterised in that it is formed with a generally cylindrical head (11) which constitutes said abutment part able to be engaged by said hook appendages (21) for locking the key (6) inserted in said opening (5) of the case (1) of the coin-operated lock.
- Coin-operated lock as claimed in any of the claims 1 through 22, characterised in that it is associated to a key as claimed in claim 23.
- A supermarket cart, luggage trolley and the like, characterised in that it is equipped with a coin-operated lock as claimed in any of the claims 1 through 22 and 24.
- A supermarket cart, luggage trolley and the like, characterised in that it is equipped with a key as claimed in claim 23.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO20030408 | 2003-06-03 | ||
IT000408A ITTO20030408A1 (en) | 2003-06-03 | 2003-06-03 | COIN MECHANISM FOR TROLLEYS FOR SUPERMARKETS, LUGGAGE RACKS AND SIMILAR. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1484721A2 true EP1484721A2 (en) | 2004-12-08 |
EP1484721A3 EP1484721A3 (en) | 2005-04-13 |
EP1484721B1 EP1484721B1 (en) | 2007-03-28 |
Family
ID=33156370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04012698A Expired - Lifetime EP1484721B1 (en) | 2003-06-03 | 2004-05-28 | Coin-operated lock for supermarket carts, luggage trolleys and the like |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1484721B1 (en) |
AT (1) | ATE358308T1 (en) |
DE (1) | DE602004005535T2 (en) |
ES (1) | ES2285307T3 (en) |
IT (1) | ITTO20030408A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006097055A1 (en) * | 2005-03-16 | 2006-09-21 | Horst Sonnendorfer | Deposit lock |
WO2007006495A1 (en) * | 2005-07-12 | 2007-01-18 | Cyril Lebrun | Protective housing for a deposit member |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4924994A (en) * | 1987-03-11 | 1990-05-15 | Ronis S.A. | Chain deposit device for a shopping or baggage trolley |
FR2645306A1 (en) * | 1989-03-31 | 1990-10-05 | Mors | Deposit taking and returning device for utility objects, such as luggage trolleys |
WO1992020047A1 (en) * | 1991-05-08 | 1992-11-12 | Protonor Engineering Oy | A slot machine |
FR2730839A1 (en) * | 1995-02-20 | 1996-08-23 | Leboime Pierre Rene Charles | Simplified coin operated link coupling for shopping trolleys |
EP1035523A2 (en) * | 1999-03-12 | 2000-09-13 | systec POS-Technology GmbH | Refunding-lock for transport trolley |
-
2003
- 2003-06-03 IT IT000408A patent/ITTO20030408A1/en unknown
-
2004
- 2004-05-28 AT AT04012698T patent/ATE358308T1/en not_active IP Right Cessation
- 2004-05-28 DE DE602004005535T patent/DE602004005535T2/en not_active Expired - Lifetime
- 2004-05-28 ES ES04012698T patent/ES2285307T3/en not_active Expired - Lifetime
- 2004-05-28 EP EP04012698A patent/EP1484721B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4924994A (en) * | 1987-03-11 | 1990-05-15 | Ronis S.A. | Chain deposit device for a shopping or baggage trolley |
FR2645306A1 (en) * | 1989-03-31 | 1990-10-05 | Mors | Deposit taking and returning device for utility objects, such as luggage trolleys |
WO1992020047A1 (en) * | 1991-05-08 | 1992-11-12 | Protonor Engineering Oy | A slot machine |
FR2730839A1 (en) * | 1995-02-20 | 1996-08-23 | Leboime Pierre Rene Charles | Simplified coin operated link coupling for shopping trolleys |
EP1035523A2 (en) * | 1999-03-12 | 2000-09-13 | systec POS-Technology GmbH | Refunding-lock for transport trolley |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006097055A1 (en) * | 2005-03-16 | 2006-09-21 | Horst Sonnendorfer | Deposit lock |
CN101142600B (en) * | 2005-03-16 | 2012-12-12 | 霍斯特·松嫩多费尔 | Deposit lock |
WO2007006495A1 (en) * | 2005-07-12 | 2007-01-18 | Cyril Lebrun | Protective housing for a deposit member |
FR2888655A1 (en) * | 2005-07-12 | 2007-01-19 | Cyril Lebrun | HOUSING FOR PROTECTING A CONSIGNING DEVICE |
Also Published As
Publication number | Publication date |
---|---|
EP1484721A3 (en) | 2005-04-13 |
ITTO20030408A1 (en) | 2004-12-04 |
ES2285307T3 (en) | 2007-11-16 |
DE602004005535D1 (en) | 2007-05-10 |
EP1484721B1 (en) | 2007-03-28 |
DE602004005535T2 (en) | 2008-01-24 |
ATE358308T1 (en) | 2007-04-15 |
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