AU2007221924B2 - Key for a transport trolley - Google Patents
Key for a transport trolley Download PDFInfo
- Publication number
- AU2007221924B2 AU2007221924B2 AU2007221924A AU2007221924A AU2007221924B2 AU 2007221924 B2 AU2007221924 B2 AU 2007221924B2 AU 2007221924 A AU2007221924 A AU 2007221924A AU 2007221924 A AU2007221924 A AU 2007221924A AU 2007221924 B2 AU2007221924 B2 AU 2007221924B2
- Authority
- AU
- Australia
- Prior art keywords
- key
- trolley
- grip
- core
- plate
- 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.)
- Ceased
Links
- 239000011324 bead Substances 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Handcart (AREA)
- Emergency Lowering Means (AREA)
- Supports Or Holders For Household Use (AREA)
- Coin-Freed Apparatuses For Hiring Articles (AREA)
Description
AUSTRALIA
Patents Act 1990 COMPLETE SPECIFICATION Standard Patent Applicant: Wanzl Metallwarenfabrik GmbH Invention Title: KEY FOR A TRANSPORT TROLLEY The following statement is a full description of this invention, including the best method for performing it known to me/us: 2
O
KEY FOR A TRANSPORT TROLLEY Field of the Invention The invention relates to a key for a transport trolley.
_Background of the Invention Keys of this kind are used to couple together stackable transport trolleys. To this end, each trolley is provided with a coin deposit lock which is located on the pushing handle of the transport trolley.
When stacked, the trolleys are located behind one another, and each key is located in the coin deposit lock of the trolley immediately behind. Only the key of the first trolley remains unused.
European patent application EP 1 485 888 A2 and the European patent EP 0 790 586 Bl, for example, describe this kind of deposit lock.
A key of this kind is also disclosed in the German patent application DE 198 04 110 Al and the German patent application DE 196 34 040 Al. The key comprises a key grip, a key plate and a key core. The key core has an eyelet attached to which is a key chain that produces the connection to the trolley, in particular the coin deposit lock or the pushing handle.
A hole has also been provided. This hole can be circular as implemented in the German patent application DE 198 04 110 Al or oval-shaped as shown in the German patent application DE 196 34 040 Al.
The International patent application with the publication H,\jo1zik\keep\Speci\KEY FOR A TRANSPORT TROLLEY.doc 10/10/07 3 O number WO 03/078225 also shows such a key.
O Keys having a z-shaped or s-shaped key plate have also been disclosed. German utility model DE 8 121 677 U1 shows a z-shaped key of this kind. A key of this kind with a zshaped key plate is also illustrated in the US patent C 6,250,451 Bl. The key grip is elongated in shape and _encloses the key core. S-shaped keys are available from C and sold by the coin deposit manufacturer Systec POS- Technology GmbH.
With the disclosed types of keys, however, deformation of the key core or the connecting means often arises when the pulling forces exceed a certain range.
The manufacture of the key core is also often associated with a high level of wear of the punching tools.
Summary of the Invention The invention provides a key for connecting together stackable transport trolleys wherein each trolley is equipped with a coin deposit lock that comprises, a coin side and a key side and wherein every key is inserted into the key side of a coin deposit lock thereby returning a deposit, and wherein every key comprises a key grip, a key plate and a key core, wherein the key plate has an sshaped cross-section and is provided with a hole that interacts with a mechanism in the interior of the coin deposit lock, and wherein the key core is couple to a connecting means and an arch and a securing section, characterised in that the key is provided with a reinforcing bead 11 that runs along the longitudinal axis of the key 6 in the region of the arch of the key core and along a portion of the key plate.
A reinforcing bead such as this can virtually eliminate H.\jolzik\keep\Speci\KEY FOR A TRANSPORT TROLLEY.doc 10/10/07 4 deformations even at higher pulling forces.
O A reinforcing bead is provided along the longitudinal axis Z of the key. This area of the key is subsequently encapsulated with a key grip so that the reinforcing bead is no longer visible.
The reinforcing bead can be provided both on larger and c smaller keys.
C- 10 It can be used for a variety of coin deposit locks simply by lengthening the key plate. This does not require the design Sof the key to be altered.
Brief Description of the Drawings The invention will now be explained in more detail with the aid of a particular embodiment. The figures show: Fig. la-e a key Fig. la in plan view, Fig. lb from the side, Fig. Ic from the rear, Fig. Id from underneath, Fig. le in 3D perspective, Fig. 2 a key with a long key plate in 3D perspective, Fig. 3a a key with a grip and short key plate, Fig. 3b a key with a grip and long key plate, Fig. 4 is a view of a trolley embodying the invention and Figs 4A and 4B are more detailed views of part of the trolley of Figure 4.
Detailed Description of the Drawings Fig. 1 shows a key 6 in plan view with a key plate 7 and a key core 9. A key grip 8 (Figure 3b) has been provided in the region of the key core 9. It is not shown in Figs. la-e for improved clarity.
N:\Melbourne\Cases\Patent\74000-74999\P74405.AU\Specis\Specification.doc9/11/2007 r 5 ^C The keys 6, as shown in Figures la-e and 2 for example, are O used to connect together stackable transport trolleys 1. To Z this end, every trolley 1 is equipped with a coin deposit lock 2 that comprises, amongst other things, a coin side 3 and a key side 4 (see Figures 4, 4A and 4B). In the stacked position of trolley 1, the key 6, which is associated with trolley 1 by a connecting means, usually in the form of a linked chain, is located inside the coin deposit lock 2 of Ci 10 the trolley 1' immediately behind it. By inserting a deposit typically in the form of a coin, into the coin side 3, -C the mechanism 12 in the coin deposit lock 2 releases the key 6 so that it can be removed, thereby allowing trolley 1' to be decoupled from trolley 1. When trolley 1' needs to be connected to trolley 1 again, this occurs in the reverse sequence. The key 6 of trolley 1 is inserted into the key side 4 of the coin deposit lock 2 of trolley 1' thereby releasing the deposit 5 again.
To enable the coin deposit lock 2 and the key 6 to interact, the key 6 is provided with a hole 10. The size and shape of this hole 10 is dependent on the mechanism 12 in the interior of the coin deposit lock 2. A rectangular shape, provided with a rounded V in the direction of the key core 9, has proven to be advantageous. A hole 10 of this shape is illustrated in Figures 1 and 2. No additional holes 10 are required.
The key plate 7 is s-shaped in cross-section. This can be seen in Fig. Ic.
The key core 9 is provided for attachment of a connecting means 13, in preference a linked chain. To this end, the key core 9 is provided with an arch 9.1 and a securing section 9.2.
A first tapered section 9.3 is provided between the key N:\Melbourne\Cases\Patent\74000-74999\P74405.AU\Specis\Specification.doc9/ll/2007 6 O plate 7 and the arch 9.1. A second tapered section 9.4 is Sprovided between the arch 9.1 and the securing section O 9.2. The second tapered section 9.4 is in preference narrower than the first tapered section 9.3.
The connecting means 13, the last link in the case of a C linked chain, is placed around the securing section 9.2 of _the key core 9, the key core 9 and a portion of the key C plate 7 is then encapsulated to form a key grip 8. This fixes the connecting means 13 to the key core 9.
The key 6 is provided with a reinforcing bead 11 which runs along the longitudinal axis of the key 6 in the region of the arch 9.1 of the key core 9 and along a portion of the key plate 7. The reinforcing bead 11 provides stability to the key 6, i.e. deformations can be virtually eliminated even at higher pulling forces.
In order to protect the reinforcing bead 11, it is fully encapsulated within the shape of the key grip 8.
The reinforcing bead 11 is narrower in the region of the arch 9.1 of the key core 9 than in the region of the key plate 7.
The arch 9.1 of the key core 9 is narrower than the key plate 7. This is evident in Fig. ld. The corners between the arch 9.1 and the first and second tapered sections 9.3, 9.4 are rounded. This can also be seen from Figures Id and le. Either equal or different radii can be used.
The maximum width of the securing section 9.2 is that of the key plate 7. The width of the securing section 9.2 is however, in preference, greater than the width of the arch 9.1.
The height of the arch 9.1 is a little greater than the H.\jo1zik\keep\Speci\KEY FOR A TRANSPORT TROLLEY.doc 10/10/07 -7- O height of the s-shaped projection of the key plate 7.
S(Fig. lb and ic) 0 The underside of the securing section 9.2 is at almost the same level as the projection of the s-shaped key plate 7.
(Fig. ic) _The projection of the key plate 7 is also shown in the 3D C( perspective in Fig. le.
The key plate 7 and the key core 9 are constructed as one piece. Differing materials are to be employed. Metal is used in preference, however it is also conceivable to use glass fibre reinforced or carbon fibre reinforced plastic for the key 6.
The key 6 exhibits hardly any corners or edges or protruding parts which minimises the wear of the punching tools when manufacturing the keys from metal.
Fig. 2 shows a further embodiment of a key 6. The key core 9 is constructed the same, while the key plate 7 is longer. The length of the key plate 7 may be selected by an expert; various lengths are conceivable.
This offers the advantage that different design solutions for the key 6 are not required when using various coin lock types 2.
Each of the Figures 3a and 3b show a key 6 with a different key grip 8. The grips 8 differ in their length.
When a short key plate 7 is used, as illustrated in Fig.
3a, the grip 8 is in preference shorter. When however a long key plate 7 is used, as illustrated in 3b, it has proven to be advantageous for the grip 8 to also be longer.
H.\jolzik\keep\Speci\KEY FOR A TRANSPORT TROLLEY.doc 10/10/07 7- -8- 0 Each grip 8 is in preference produced from an injection molded material. A portion of the connecting means 13 is O encapsulated within the grip 8 to provide stability to the overall connecting means 13 and to fix in place each respective part of the connecting means 13. In the example shown, the connecting means 13 takes the form of a linked Schain so that, in preference, the link that is directly Sattached to the key core 8 is partially encapsulated.
m 10 For improved gripability, the grip 8 is corrugated. In Spreference, this corrugation takes the form of circular knobs protruding from the surface.
The grip 8 has a circular shape that is interrupted by the attachment for the connecting means 13 and in the region of the key plate 7.
In preference the thickness of the grip 8 increases slightly and symmetrically on the upper side and underside of the grip, from the key core 9 to the key plate 7.
Reference list 1 Transport trolley 1' another transport trolley, the transport trolley immediately behind 2 Coin deposit lock 3 Coin side 4 Key side 5 Deposit, coin 6 Key H-\jo1zik\keep\Speci\KEY FOR A TRANSPORT TROLLEYdoc 10/10/07 9 7 Key plate O 8 Key grip, grip 9 Key core S9.1 Arch 9.2 Securing section 9.3 First tapered section 9.4 Second tapered section Hole 11 Reinforcing bead 12 Mechanism 13 Connecting means, linked chain In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word "comprise" or variations such as "comprises" or "comprising" is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention.
It is to be understood that, if any prior art publication is referred to herein, such reference does not constitute an admission that the publication forms a part of the common general knowledge in the art, in Australia or any other country.
H\jolzik\keep\Speci\KEY FOR A TRANSPORT TROLLEY.doc 10/10/07
Claims (3)
- 2. Key according to claim 1 characterised in that the reinforcing bead is fully encapsulated within the shape of the key grip.
- 3. Key according to claim 1 characterised in that the reinforcing bead is narrower in the region of the arch than in the region of the key plate.
- 4. Key according to claim 1 characterised in that the key core has a first tapered section and a second tapered section, wherein the second tapered section is narrower than the first tapered section. H,\jolzik\keep\Speci\KEY FOR A TRANSPORT TROLLEY.doc 10/10/07
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006048132.1 | 2006-10-10 | ||
| DE200610048132 DE102006048132B3 (en) | 2006-10-10 | 2006-10-10 | Key for stackable carriages closing each other, has reinforcing bead provided along longitudinal axis of key in area of curvature of key core, provided for receiving connecting device, and in part of key sheet metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2007221924A1 AU2007221924A1 (en) | 2008-04-24 |
| AU2007221924B2 true AU2007221924B2 (en) | 2009-02-26 |
Family
ID=38777243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2007221924A Ceased AU2007221924B2 (en) | 2006-10-10 | 2007-10-10 | Key for a transport trolley |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1912181A3 (en) |
| AU (1) | AU2007221924B2 (en) |
| DE (1) | DE102006048132B3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3009418A1 (en) * | 2013-08-01 | 2015-02-06 | Altia Technology | RECORDING DEVICE ACCEPTING DIFFERENT KEY FINGERPRINTS |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1982001951A1 (en) * | 1980-11-28 | 1982-06-10 | Lenander Aage | Coin-operated lock for a trolley system,including especially shopping and luggage trolleys |
| WO1998030984A2 (en) * | 1997-01-13 | 1998-07-16 | Wanzl Metallwarenfabrik Gmbh | Device for shopping or transporting luggage |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8121677U1 (en) * | 1981-07-23 | 1981-12-03 | Sonnendorfer, Horst, 8034 Germering | DEVICE FOR ENSURING THE RETURN OF RENTED SHOPPING CART |
| DE9406960U1 (en) * | 1994-04-28 | 1994-06-09 | Wanzl Metallwarenfabrik Gmbh, 89340 Leipheim | Luggage transport trolley suitable for escalators |
| DE19605805B4 (en) | 1996-02-16 | 2007-07-12 | Systec Pos-Technology Gmbh | Dolly with deposit lock |
| DE19634040A1 (en) * | 1996-08-23 | 1998-02-26 | Peter Fuchs | Coin operated lock for supermarket type trolley |
| DE19804110A1 (en) | 1998-02-03 | 1999-08-05 | Wanzl Metallwarenfabrik Kg | Coin deposit lock for shopping trolley |
| AU2003218951A1 (en) | 2002-03-13 | 2003-09-29 | Horst Sonnendorfer | Deposit lock for a transport car |
-
2006
- 2006-10-10 DE DE200610048132 patent/DE102006048132B3/en not_active Expired - Fee Related
-
2007
- 2007-10-08 EP EP07019640A patent/EP1912181A3/en not_active Withdrawn
- 2007-10-10 AU AU2007221924A patent/AU2007221924B2/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1982001951A1 (en) * | 1980-11-28 | 1982-06-10 | Lenander Aage | Coin-operated lock for a trolley system,including especially shopping and luggage trolleys |
| WO1998030984A2 (en) * | 1997-01-13 | 1998-07-16 | Wanzl Metallwarenfabrik Gmbh | Device for shopping or transporting luggage |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2007221924A1 (en) | 2008-04-24 |
| EP1912181A2 (en) | 2008-04-16 |
| DE102006048132B3 (en) | 2008-01-03 |
| EP1912181A3 (en) | 2008-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |