EP0023526A1 - Gerät zum Entfernen von Deckeln von Behältern - Google Patents

Gerät zum Entfernen von Deckeln von Behältern Download PDF

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Publication number
EP0023526A1
EP0023526A1 EP19790301554 EP79301554A EP0023526A1 EP 0023526 A1 EP0023526 A1 EP 0023526A1 EP 19790301554 EP19790301554 EP 19790301554 EP 79301554 A EP79301554 A EP 79301554A EP 0023526 A1 EP0023526 A1 EP 0023526A1
Authority
EP
European Patent Office
Prior art keywords
lid
tin
gripping tool
tool according
jaw
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
Application number
EP19790301554
Other languages
English (en)
French (fr)
Inventor
Albert Edward Morris
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP19790301554 priority Critical patent/EP0023526A1/de
Publication of EP0023526A1 publication Critical patent/EP0023526A1/de
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B7/00—Hand- or power-operated devices for opening closed containers
    • B67B7/14—Hand- or power-operated devices for opening closed containers for removing tightly-fitting lids or covers, e.g. of shoe-polish tins, by gripping and rotating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/02—Jaws

Definitions

  • This invention relates to a gripping tool for removing from a tin a lid having an annular peripheral lip projecting from an outstanding flange, the gripping tool comprising first and second members which are relatively displaceably interconnected and have respective jaw elements at one end for gripping the tin lid.
  • the present invention is more specifically concerned with the gripping tool for use with tins having internally fitting lids which engage an inner annular surface formed on a downwardly extending portion of a flange at the top of the tin.
  • the lid of the tin similarly has a generally U shaped edge portion for engaging in the U shaped groove, and a laterally extending annular flange which is adapted essentially to seat against the shelf portion to limit the extent to which the lid is pressed onto the tin.
  • the present invention is directed to providing a gripping tool which can permit easy and safe removal of the lids from tins with little or no distortion or damage being caused to the tin or the lid.
  • the gripping tool of the present invention is characterised by the jaw element of the first member being shaped for insertion under the lip of the lid and the jaw element of the second member having a first part and a second terminal part, the first part being shaped and dimensioned for extending over the lip of the lid and the second terminal part being shaped and dimensioned to extend down over the flange of the lid when the gripping tool is closed to cause the lid to be gripped to permit its loosening and removal from the tin.
  • the gripping tool is preferably constructed generally in the manner of a pair of pincers or pliers with the two members pivotally connected, the nose of the first member being of flat strip-like form for insertion under the peripheral lip of the lid, and the nose of the second member being generally L-shaped for engagement over said lip and the adjoining flange.
  • the L-shaped nose which extends over the peripheral lip and the adjoining flange of the lid, serves to reinforce these parts of the lid and resist deformation thereof during loosening and removal of the lid.
  • the pivoting axis of the two members is off-set from the longitudinal median of the first member and extends through a protrusion provided on the first member on the same side as the face of the end portion intended to contact the lip of a lid to be removed.
  • each member may conveniently have a width of 4 mm to 12 mm, preferably about 8 mm.
  • the end portion of the first member may advantageously taper from a maximum thickness of about 3 mm to a flat edge facilitating insertion under the lip of a lid, and the terminal portion of the second member may likewise be tapered.
  • the end portions of the respective members preferably cooperate so that if fully closed without being engaged over a tin lid, the tip of the end portion of the first member engages under the end portion of the second member. Furthermore, when the end member is generally L-shaped an included angle of about 113 0 is provided between the respective arms of the L-shape.
  • the gripping tool shown in Figures 1-3 is constructed in the manner of a pair of pincers or pliers with first and second members 1 and 2 pivoted together at 3 by a bolt or rivet.
  • Each member is formed from a relatively thick strip of metal with a first twist 4 to provide a handle portion suitable for gripping.
  • the nose of each member is formed with a second twist 5.
  • the nose 6 of the member 1 is thin, flat and tapered to an edge facilitating insertion under the peripheral lip 14 of a lid 12.
  • the second member 2 has a generally L-shaped nose with a first portion 7 which lies parallel to the nose 6 when the tool is closed and a second, terminal portion 8 extending at about 113° to the portion 7. When the tool is closed as shown in Figure 3 the tip of the nose 6 is against the top inside portion of the terminal portion 8 of the second member.
  • FIG. 1 An example of one type of tin for which the tool is intended is shown partially in Figure 1.
  • the tin 10 has an inner.annular shelf-like surface and a downwardly extending flange lla extending from a rim 15 of the tin.
  • the lid 12 has a corresponding outer annular lip 14 extending from an upstanding flange 13.
  • a second tool is shown in Figure 4 and is generally similar to the tool in Figure 1, and only the differences will be highlighted, similar parts being given the same reference numerals.
  • the tool of Figure 4 has its pivot 3 off-set with respect to the member 1 and passing through a protrusion 16 provided on this member on the same side as the face of the nose 6 intended to contact the lip 14 of a lid. This arrangement has been found to give a more satisfactory levering action in certain applications.
  • a second form of tin 10 is illustrated.
  • a slightly downwardly tapered groove 17 is formed adjacent to the opening to the tin, the outer wall of the annular groove 17 being formed by the flange lla and the opposite wall being formed by wall 18 having an inwardly turned edge 19.
  • the lid 12 has a corresponding shape with a similar U-shaped groove 20 formed between the central portion of the lid and the peripheral lip 14, the dimensions of the groove 20 being chosen in relation to the dimensions of the groove 17 to cause a wedging action, the walls of the respective grooves being slightly resilient.
  • tins are designed so that a seal is is established at several points.
  • the tools illustrated are made from strip metal, metal in rod form may also be used. Furthermore, the shape of the tool may be varied with respect to that illustrated in the drawings to render the tool more suitable for mass-production manufacturing techniques, e.g. stamping, pressing, casting, etc.
  • the gripping tool may be formed from mild steel strip of about 12 mm X 2.5 mm in cross-section.
  • the two end portions or noses may have a width of about 8 mm and preferably each taper to an edge.
  • the terminal portion of the L-shaped nose may be 6 mm in length, and its distance from the pivot about 33 mm. According to the material used, these dimensions may be varied to achieve the desired strengths and to suit the manufacturing techniques employed.
  • a desirable embodiment of the invention is one which can operate successfully on a wide range of tins having various profiles around the lid and the opening in which the lid fits.
  • the jaws of the tool are substantially as shown in Figure 3, with the axis of pivoting being approximately 25 to 30 mm from the end of the nose 6. Furthermore, the axis of pivoting is approximately 6 mm below a plane defining the upper edge of the nose 6 and the lower surface of the first portion 7.
  • the tool is a conventional pair of pliers but with a modified end to each of the jaws.
  • the lower jaw has a flattened nose 6 and the. upper jaw has an L-shaped end with a terminal portion 8 which co-operates with the flat nose 6 in the same manner as in the above described embodiment of the invention.
  • This tool can be remarkably useful since a multiplicity of tasks can be carried out with the tool. Virtually all tasks normally performed by pliers can still be performed yet tins can also be opened by virtue of the shape of the jaws.
  • a further advantageous feature which is provided is a V-shaped notch 22 provided in the terminal portion 8 of the upper jaw.
  • the "second member” constitutes a pivotal handle portion 2a and a separate pivotally mounted head portion 2b having a pair of lateral downwardly extending ears 23 bridging the first member 1 and being pivotally connected thereto by a rivet 24.
  • a lug 25 extends forwardly of the handle 2a to engage under a rear tab 26 of the head portion 2b, a torsion spring 27 spring biasing the head portion 2b in a clock-wise direction as shown in Figure 6 so that the rear tab 26 presses down on the lug 25 of the handle thereby spring biasing the tool to an open position.
  • the tool functions essentially in the same way as the tools of the previous embodiments.
  • the handle 2a has its lower end forked to form a pair of legs -28 located on each side of the handle 1 and operable to pivot a lever arm 29 in a clock-wise direction when viewed as in Figure 7 relative to the first member 1 when the tool is gripped and moved to closed position.
  • the arm 29 is biased to the position as shown in Figure 7 by a torsion spring 27 which is partially shown in Figure 8.
  • lever arm 29 is U-shaped in end view with arms 31 projecting forwardly and having respective notches 32 for engaging on the edge of the rim of a tin.
  • Figure 8 also shows that the handles 1 and 2 are both generally U-shaped.
  • the nose 6 When the tool is to be used, the nose 6 is inserted under the peripheral lip of the tin lid and this results in the notch 32 in each arm 31 being positioned over the edge of the rim of the tin.
  • the lugs 28 of the handle 2a engage under corresponding inwardly turned lugs 33 at the rear of the lever arm 29 to rotate the lever arm clock-wise relative to the handle 1 thereby bringing the notches 32 into engagement with the rim; simultaneously the lug 25 engages under the rear tab 26 to rotate the head portion 2b clock-wise and continued motion causes engagement of the jaws of the tool over the tin lid with the nose 6 being lifted upwardly relative to the arms 31 so that the tin lid is forced upwardly without the user exerting any leverage.
  • a helical compression spring 35 fixed to the handle 1 acts to return the handle 2 towards its position shown in Figure 7 upon release.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Opening Bottles Or Cans (AREA)
EP19790301554 1979-08-02 1979-08-02 Gerät zum Entfernen von Deckeln von Behältern Ceased EP0023526A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19790301554 EP0023526A1 (de) 1979-08-02 1979-08-02 Gerät zum Entfernen von Deckeln von Behältern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19790301554 EP0023526A1 (de) 1979-08-02 1979-08-02 Gerät zum Entfernen von Deckeln von Behältern

Publications (1)

Publication Number Publication Date
EP0023526A1 true EP0023526A1 (de) 1981-02-11

Family

ID=8186411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790301554 Ceased EP0023526A1 (de) 1979-08-02 1979-08-02 Gerät zum Entfernen von Deckeln von Behältern

Country Status (1)

Country Link
EP (1) EP0023526A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0543107A2 (de) * 1991-10-18 1993-05-26 United States Surgical Corporation Handgrift für endoskopische chirurgische Instrumente und Backenstruktur
FR2720966A1 (fr) * 1994-06-13 1995-12-15 Aerospatiale Pince pour dépose de frettes telles que des frettes de cablâge.
DE10028798A1 (de) * 2000-06-15 2002-01-03 Lucas Automotive Gmbh Dosenöffner für Klemmdeckeldosen

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB216821A (en) * 1924-02-12 1924-06-05 Anton Martin Schweigaard Schaa Improvements in or relating to devices for opening tins, cans or the like
US1615732A (en) * 1925-05-23 1927-01-25 Samuel H Williamson Lifter
US1751155A (en) * 1927-07-12 1930-03-18 Walter G Heny Tongs
US2248166A (en) * 1940-05-29 1941-07-08 Charles A Eilers Can opener
GB653110A (en) * 1948-07-06 1951-05-09 Charles Robert Masters Improvements relating to bottle cap wrenches
DE903560C (de) * 1944-07-30 1954-02-08 Messerschmitt Boelkow Blohm Vorrichtung zum Verbinden von Annietmuttern mit einem Bauteil, insbesondere fuer den Flugzeugbau
GB862468A (en) * 1958-04-17 1961-03-08 Giorgio Balma Plier-like device for detaching metallic staples
GB1234375A (de) * 1968-08-15 1971-06-03

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB216821A (en) * 1924-02-12 1924-06-05 Anton Martin Schweigaard Schaa Improvements in or relating to devices for opening tins, cans or the like
US1615732A (en) * 1925-05-23 1927-01-25 Samuel H Williamson Lifter
US1751155A (en) * 1927-07-12 1930-03-18 Walter G Heny Tongs
US2248166A (en) * 1940-05-29 1941-07-08 Charles A Eilers Can opener
DE903560C (de) * 1944-07-30 1954-02-08 Messerschmitt Boelkow Blohm Vorrichtung zum Verbinden von Annietmuttern mit einem Bauteil, insbesondere fuer den Flugzeugbau
GB653110A (en) * 1948-07-06 1951-05-09 Charles Robert Masters Improvements relating to bottle cap wrenches
GB862468A (en) * 1958-04-17 1961-03-08 Giorgio Balma Plier-like device for detaching metallic staples
GB1234375A (de) * 1968-08-15 1971-06-03

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0543107A2 (de) * 1991-10-18 1993-05-26 United States Surgical Corporation Handgrift für endoskopische chirurgische Instrumente und Backenstruktur
EP0543107A3 (de) * 1991-10-18 1994-03-30 United States Surgical Corp
FR2720966A1 (fr) * 1994-06-13 1995-12-15 Aerospatiale Pince pour dépose de frettes telles que des frettes de cablâge.
DE10028798A1 (de) * 2000-06-15 2002-01-03 Lucas Automotive Gmbh Dosenöffner für Klemmdeckeldosen
DE10028798C2 (de) * 2000-06-15 2002-04-11 Lucas Automotive Gmbh Dosenöffner für Klemmdeckeldosen

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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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Effective date: 19810704

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Effective date: 19840303