EP0226552A2 - Locking ring - Google Patents
Locking ring Download PDFInfo
- Publication number
- EP0226552A2 EP0226552A2 EP86830328A EP86830328A EP0226552A2 EP 0226552 A2 EP0226552 A2 EP 0226552A2 EP 86830328 A EP86830328 A EP 86830328A EP 86830328 A EP86830328 A EP 86830328A EP 0226552 A2 EP0226552 A2 EP 0226552A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- profile strip
- locking ring
- fact
- clamping element
- ring according
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
- B65D45/32—Clamping or other pressure-applying devices for securing or retaining closure members for applying radial or radial and axial pressure, e.g. contractible bands encircling closure member
- B65D45/34—Clamping or other pressure-applying devices for securing or retaining closure members for applying radial or radial and axial pressure, e.g. contractible bands encircling closure member lever-operated
- B65D45/345—Lever-operated contractible or expansible band, the lever moving in the plane of the band
Definitions
- the present invention has as its subject a ring for locking the cover onto a fibre cask or the like.
- fibre casks and the like are generally provided with covers which are fixed to the upper edges of the casks themselves, by means of locking rings.
- connection of the ends of the metal strip to the parts constituting the lever is achieved by means of a spot welding operation.
- the closure formed will have low reliability in that it is not infrequently the case that rupture takes place in the attachment zones between the parts constituting the lever and the ends of the metal strip.
- the object which the present invention proposes is that of eliminating the previously indicated disadvantages by providing a locking ring for fibre cask covers and the like, which can be made simply utilising mechanical operations, of considerable security and reliability.
- a particular object of the invention is that of providing a closure ring in which all the operations for I connection between the clamping element and the metal strip, constituting the locking ring, can be considerably simplified.
- the locking ring in question by not requiring supplementary costs such as welding, has advantages from a purely economic point of view.
- the locking ring itself, moreover, can be easily and rapidly fitted to the various types of fibre casks and, moreover, is able to offer the widest guarantees of reliability and safety in use.
- a locking ring for the cover of a fibre cask or the like characterised by the fact that it comprises a profile, which can be disposed in a ring, at the ends of which is connectable a clamping element; there being provided, moreover, means for coupling the said clamping element to the said profile.
- a closure ring for locking a cover onto a cask or the like has a metal profile strip, generally indicated with the reference numeral 1, which preferably has a substantially C-shape cross-section.
- the said profile strip 1 can be folded to assume a substantially ring-shape conformation and, at its ends, has transverse slots 2 which constitute a fitting ; element for coupling of a clamping element generally indicated with the reference numeral 3 and preferably constituted by a lever arrangement.
- the clamping element 3 has a lever arm 4 which is articulated at one end to a small bracket 5 provided with one or more tongues 6 which can be inserted into the slots 2.
- a connecting arm 14 which, at the other end, is articulated to a similar small bracket 5 also provided with a tongue 6 which can be connected to the slots 2 provided at the other end of the profile strip.
- the tongues 6 can be inserted into the slots formed at the ends of the profile strip 1 and are then foldable against the strip itself in such a way as to render the connection between the profile strip 1 and the metal band securely fixed.
- the tongues are in practice squeezed radially against the peripheral surface both of the cover and of the cask, consequently increasing the clamping and not creating forces which tend to disconnect them.
- a projecting slot 7 which is accessible radially, which, with the lever in the clamping position, is disposed in correspondence with coincidence slots 8 which are correspondingly defined on the lever arm 4 in such a way as to allow coupling of safety elements or locking elements which further clamp the lever arms together thus guaranteeing integrity of the closure.
- the clamping member is constituted by a small base 15 to which is pivoted the end of the lever arm 4' which is articulated at its median portion with the end of a link arm 14' articulated at its other end to a second base member 16.
- the base members 15 and 16 are provided with projections, indicated 6' which are correspondingly defined on the slots or apertures 2' and which are insertable in a similar manner to that described hereinabove.
- the base member 15 has lateral sides 20 which define a window 21 in which is disposable, in coincidence, a coincidence window 22 defined in correspondence with the window 21 ; on the lever arm 4' in such a way as to obtain an insertion region for locking elements, in a conceptually similar manner to that already described hereinabove.
- Another important aspect of the invention is constituted by the fact that the folded tongues or projections are able to exert a considerable mechanical resistance in that when they are subjected to the traction force of the profile strip for closure they are radially compressed between the cover and the upper edge of the cask, without there being any possibility of their mechanical yielding.
- the invention thus conceived, is susceptible of numerous modifications and variations, all lying within the scope of the inventive concept.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The subject of the present invention is a ring for locking a cover onto a fibre cask and the like, which has the peculiarity of comprising a metal profile strip (1,1') which can be disposed in a ring, to the ends of which can be coupled a clamping element (3,3').
There are further provided interfitting means constituted by tongues or projections (6,6') which can be inserted into slots (2,2') defined at the ends of the said profile strip (1,1') and supported by attachment base members (5,15,16) of the said clamping element (3,3') to obtain coupling of the clamping element (3,3') to the profile strip (1,1').
Description
- The present invention has as its subject a ring for locking the cover onto a fibre cask or the like.
- As is known, fibre casks and the like are generally provided with covers which are fixed to the upper edges of the casks themselves, by means of locking rings.
- These latter are generally constituted by a shaped metal strip which is provided with a lever clamping member constituted by two parts which must be preliminarily fixed at the ends of the metal strip, thus creating considerable problems during the production and assembly stages.
- In fact, the connection of the ends of the metal strip to the parts constituting the lever is achieved by means of a spot welding operation.
- Such operations, as well as requiring the use of welding machines must be performed with extreme skill by qualified labour.
- Moreover, welding can be very difficult because of the different characteristics of the metal material utilised for the production of the strips.
- If the welding is not performed in the correct manner the closure formed will have low reliability in that it is not infrequently the case that rupture takes place in the attachment zones between the parts constituting the lever and the ends of the metal strip.
- The object which the present invention proposes is that of eliminating the previously indicated disadvantages by providing a locking ring for fibre cask covers and the like, which can be made simply utilising mechanical operations, of considerable security and reliability.
- Within the scope of the above-explained objects, a particular object of the invention is that of providing a closure ring in which all the operations for I connection between the clamping element and the metal strip, constituting the locking ring, can be considerably simplified.
- The locking ring in question, by not requiring supplementary costs such as welding, has advantages from a purely economic point of view.
- The locking ring itself, moreover, can be easily and rapidly fitted to the various types of fibre casks and, moreover, is able to offer the widest guarantees of reliability and safety in use.
- The above-explained objects, as well as the objects listed and others, which will be more clearly evidenced hereinbelow, are achieved according to the invention by a locking ring for the cover of a fibre cask or the like, characterised by the fact that it comprises a profile, which can be disposed in a ring, at the ends of which is connectable a clamping element; there being provided, moreover, means for coupling the said clamping element to the said profile.
- Further characteristics and advantages of the invention will become more clearly apparent from a study of the description of two preferred, but not exclusive, embodiments of a locking ring for the cover of a fibre cask and the like, illustrated purely by way of indicative, but non-limitative, example, with the aid of the attached drawings, in which:
- Figure 1 schematically represents, in perspective a metal profile and, separated therefrom and on an enlarged scale a locking element for connection to the profile itself;
- Figure 2 shows the clamping element fitted to the profile;
- Figure 3 shows the locking ring in the cover locking position;
- Figure 4 shows a different embodiment of the clamping element; /
- Figure 5 shows the profile to be utilised with the lever of Figure 4.
- With reference to Figures from 1 to 3, a closure ring for locking a cover onto a cask or the like, has a metal profile strip, generally indicated with the
reference numeral 1, which preferably has a substantially C-shape cross-section. - The said
profile strip 1 can be folded to assume a substantially ring-shape conformation and, at its ends, hastransverse slots 2 which constitute a fitting ; element for coupling of a clamping element generally indicated with thereference numeral 3 and preferably constituted by a lever arrangement. - In more detail, the
clamping element 3 has a lever arm 4 which is articulated at one end to asmall bracket 5 provided with one ormore tongues 6 which can be inserted into theslots 2. - At a median portion 4 is articulated the end of a connecting
arm 14 which, at the other end, is articulated to a similarsmall bracket 5 also provided with atongue 6 which can be connected to theslots 2 provided at the other end of the profile strip. - The
tongues 6 can be inserted into the slots formed at the ends of theprofile strip 1 and are then foldable against the strip itself in such a way as to render the connection between theprofile strip 1 and the metal band securely fixed. - With the structure adopted, in the clamping stage, the tongues are in practice squeezed radially against the peripheral surface both of the cover and of the cask, consequently increasing the clamping and not creating forces which tend to disconnect them.
- Close to one of the
slots 2 there is, moreover, provided aprojecting slot 7 which is accessible radially, which, with the lever in the clamping position, is disposed in correspondence withcoincidence slots 8 which are correspondingly defined on the lever arm 4 in such a way as to allow coupling of safety elements or locking elements which further clamp the lever arms together thus guaranteeing integrity of the closure. - In practice, after having fitted the
tongues 6 into theslots 2 and folded the tongues themselves against theprofile strip 1, clamping is effected normally by acting on the free end of the lever arm 4 to obtain a secure and safe coupling. With particular reference to Figures 4 and 5, there is illustrated a conceptually similar embodiment in which the profile strip, indicated with the reference numeral 1', has in correspondence with the facing ends, a plurality of openings 2' spaced from one another. - Correspondingly, the clamping member, indicated 3', is constituted by a
small base 15 to which is pivoted the end of the lever arm 4' which is articulated at its median portion with the end of a link arm 14' articulated at its other end to asecond base member 16. - The
base members base member 15 haslateral sides 20 which define awindow 21 in which is disposable, in coincidence, acoincidence window 22 defined in correspondence with thewindow 21 ; on the lever arm 4' in such a way as to obtain an insertion region for locking elements, in a conceptually similar manner to that already described hereinabove. - From what has been illustrated above it will be seen how the invention achieves the proposed objects, and in particular the fact is to be emphasised that there is provided a locking ring in which the clamping element, constituted by the
lever 3 or 3' is applicable with rapidity and simplicity, merely by exploiting the purely mechanical operations due to coupling of thetongues 6 or projections 6' incorresponding slots 2 or 2' formed on the end of themetal profile strip 1 or 1'. - Another important aspect of the invention is constituted by the fact that the folded tongues or projections are able to exert a considerable mechanical resistance in that when they are subjected to the traction force of the profile strip for closure they are radially compressed between the cover and the upper edge of the cask, without there being any possibility of their mechanical yielding. The invention, thus conceived, is susceptible of numerous modifications and variations, all lying within the scope of the inventive concept.
- Moreover, all the details can be replaced by other, technically equivalent elements.
Claims (8)
1. A locking ring for the cover of a fibre cask or the like, characterised by the fact that it comprises a profile strip (1,1') disposable in a ring, to the ends of which is connectable a clamping element (3,3') there being further provided interfitting means (6,6') for coupling the clamping element (3,3') to the said profile strip (1,1').
2. A locking ring according to the preceding Claim, characterised by the fact that the said interfitting means are constituted by transvers slots (2) formed at the end of the profile strip (1), in which are engageable tongues (6) projecting from connection brackets (5) of this clamping element (3).
3. A locking ring according to the preceding Claims, characterised by the fact that the clamping element (3) is constituted by a lever element having a lever arm (4) articulated at one end to the said brackets (5) and, in a median portion, with the end of a link arm (14) articulated to the other bracket (5).
4. A locking ring according to one or more of the preceding Claims, characterised by the fact that the tongues (6) can be introduced into the slots (2) and are foldable under the profile strip (1).
5. A locking ring according to one or more of the preceding Claims, characterised by the fact that the said tongues (2), in the closure condition of the lever element (3) are compressed radially by the profile strip (1) against the peripheral portions of the cover and the cask.
6. A locking ring according to one or more of the preceding Claims, characterised by the fact that it includes, in correspondence with one end of the profile strip (1), a projecting slot (7) accessible axially with respect to the ring (1) and disposable in coincidence with corresponding slots (8) defined on the lever arm (4).
7. A locking ring according to one or more of the preceding Claims, characterised by the fact that it includes a clamping element (3') constituted by a first base member (15) to which is connected the end of a lever arm (4') articulated in its median portion to a link arm (14') connected to a second base member (16), the said first (15) and second (16) base members being provided with projections (6') insertable in corresponding slots (2') defined at the ends of the profile strip (1') and foldable under the profile strip (1') itself.
8. A locking ring according to one or more of the preceding Claims, characterised by the fact that the first base member (15) has lateral sides (20) defining a window (21) disposable in coincidence with a cooperating window (22) defined on the lever arm (4') and disposable in coincidence with the window (21) when the clamping element (3') is in the closure position.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2377385U IT207506Z2 (en) | 1985-11-08 | 1985-11-08 | RING FOR LOCKING THE COVER ON FIBER DRUMS AND SIMILAR, PROVIDED WITH A LEVER MECHANISM MECHANICALLY CONNECTED, JOINTED, TO THE SAME RING. |
IT2377385U | 1985-11-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0226552A2 true EP0226552A2 (en) | 1987-06-24 |
EP0226552A3 EP0226552A3 (en) | 1988-06-22 |
Family
ID=11209856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86830328A Withdrawn EP0226552A3 (en) | 1985-11-08 | 1986-11-06 | Locking ring |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0226552A3 (en) |
IT (1) | IT207506Z2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0370804A1 (en) * | 1988-11-22 | 1990-05-30 | Universal Presswork Limited | Lever catch |
GB2226305A (en) * | 1988-12-22 | 1990-06-27 | Mauser Werke Gmbh | Clamping ring for a container |
WO1992000890A1 (en) * | 1990-07-13 | 1992-01-23 | Henricus Johannes Van Ryswyk | Toggle latch |
GB2317165A (en) * | 1996-09-13 | 1998-03-18 | Angal Collecting Boxes & Dev | A bucket having apparatus for securing monetary collections made in the bucket |
DE10053654B4 (en) * | 2000-10-28 | 2004-05-27 | Eberhard Stolz | U-shaped profiled clamping ring made of sheet metal for fastening a lid to transport and storage containers |
CN100398418C (en) * | 2004-07-01 | 2008-07-02 | 梅加德多尔有限公司 | System for locking doors on goods boxes |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB566751A (en) * | 1943-08-06 | 1945-01-11 | Harry Brown | Improvements in or relating to closures for sheet metal drums, kegs and like containers |
US3633956A (en) * | 1970-02-11 | 1972-01-11 | Heber K Angell | Adjustable locking rim for shipping containers |
FR2168313A1 (en) * | 1972-01-18 | 1973-08-31 | Schemm Fa Theodor | |
DE2221241A1 (en) * | 1972-04-29 | 1973-11-08 | Schemm Fa Theodor | RING CLOSURE FOR BARRELS |
FR2302932A1 (en) * | 1975-03-07 | 1976-10-01 | Monin Sarl R | Metal ring clip for barrel - has plate with lugs inserted in oblong hole and rotated through right angle |
-
1985
- 1985-11-08 IT IT2377385U patent/IT207506Z2/en active
-
1986
- 1986-11-06 EP EP86830328A patent/EP0226552A3/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB566751A (en) * | 1943-08-06 | 1945-01-11 | Harry Brown | Improvements in or relating to closures for sheet metal drums, kegs and like containers |
US3633956A (en) * | 1970-02-11 | 1972-01-11 | Heber K Angell | Adjustable locking rim for shipping containers |
FR2168313A1 (en) * | 1972-01-18 | 1973-08-31 | Schemm Fa Theodor | |
DE2221241A1 (en) * | 1972-04-29 | 1973-11-08 | Schemm Fa Theodor | RING CLOSURE FOR BARRELS |
FR2302932A1 (en) * | 1975-03-07 | 1976-10-01 | Monin Sarl R | Metal ring clip for barrel - has plate with lugs inserted in oblong hole and rotated through right angle |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0370804A1 (en) * | 1988-11-22 | 1990-05-30 | Universal Presswork Limited | Lever catch |
GB2226305A (en) * | 1988-12-22 | 1990-06-27 | Mauser Werke Gmbh | Clamping ring for a container |
GB2226305B (en) * | 1988-12-22 | 1993-01-13 | Mauser Werke Gmbh | Clamping ring |
WO1992000890A1 (en) * | 1990-07-13 | 1992-01-23 | Henricus Johannes Van Ryswyk | Toggle latch |
US5295604A (en) * | 1990-07-13 | 1994-03-22 | Ryswyk Henricus J Van | Toggle latch |
GB2317165A (en) * | 1996-09-13 | 1998-03-18 | Angal Collecting Boxes & Dev | A bucket having apparatus for securing monetary collections made in the bucket |
GB2317165B (en) * | 1996-09-13 | 2000-03-22 | Angal Collecting Boxes & Dev | A bucket having apparatus for securing monetary collections made in the bucket |
DE10053654B4 (en) * | 2000-10-28 | 2004-05-27 | Eberhard Stolz | U-shaped profiled clamping ring made of sheet metal for fastening a lid to transport and storage containers |
CN100398418C (en) * | 2004-07-01 | 2008-07-02 | 梅加德多尔有限公司 | System for locking doors on goods boxes |
Also Published As
Publication number | Publication date |
---|---|
EP0226552A3 (en) | 1988-06-22 |
IT207506Z2 (en) | 1988-01-25 |
IT8523773V0 (en) | 1985-11-08 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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18W | Application withdrawn |
Withdrawal date: 19881115 |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: CAMPANINI, ALDO |