WO2021260733A1 - Axe de pivotement pour un ustensile de cuisson sous pression - Google Patents

Axe de pivotement pour un ustensile de cuisson sous pression Download PDF

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Publication number
WO2021260733A1
WO2021260733A1 PCT/IN2021/050612 IN2021050612W WO2021260733A1 WO 2021260733 A1 WO2021260733 A1 WO 2021260733A1 IN 2021050612 W IN2021050612 W IN 2021050612W WO 2021260733 A1 WO2021260733 A1 WO 2021260733A1
Authority
WO
WIPO (PCT)
Prior art keywords
pivot pin
handle
pivot
cooking utensil
lid
Prior art date
Application number
PCT/IN2021/050612
Other languages
English (en)
Inventor
Abhijeet Gajanan KHOPKAR
Harshal SHETYE
Original Assignee
Bajaj Electricals Ltd.
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 Bajaj Electricals Ltd. filed Critical Bajaj Electricals Ltd.
Publication of WO2021260733A1 publication Critical patent/WO2021260733A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor

Definitions

  • the present invention relates to a pivot pin for a pressure cooking utensil.
  • the present invention relates to a pivot pin having a leaning geometry which shifts the pivot point off centric.
  • Pressure cookers have been used for many years, they accelerate cooking time, reduce the use of cooking fuel and increase the overall efficiency of cooking by using pressure to cook food articles.
  • a common type of pressure cooker employs a lid having a plurality of circumferentially spaced flanges, which interlock, with similar flanges on the cooker body or pan when the lid is rotated relative to the pan.
  • a lid with this type of locking mechanism is known as a “bayonet” lid.
  • Bayonet style pressure cookers often operate at pressures of 5-15 psig. These cookers do an excellent job of cooking. However, people are afraid to operate them as the dangers of explosion in such cookers is greater. Numerous interlock systems of this type have been the subject of patents, some examples being U.S. Pat. Nos.
  • an alternate type of pressure cooker is often preferred, namely an inner lid type pressure cooker.
  • This type of pressure cooker typically contains a cooking pot, a lid which is generally sealed with a gasket and fastened by pressing the lid handle downwards, towards the compartment handle by means of a pivot mechanism accompanied by a hinge mechanism.
  • the principal object of this invention is to provide a pivot pin for cooking utensil which reduces the force required for unlocking the lid handle from the container handle of said cooking utensil,
  • Another object of this invention is to provide a pivot pin for cooking utensil which reduces the distance between the center of cooking utensil (center of vent weight) and the pivot point of the pivot pin, thereby reducing the length of the lid handle and container handle,
  • a further object of this invention is to reduce the overall length of the handle(s) of the cooking utensil for a strong clamping of lid handle with the container body or bracket making the cooking utensil safe and sturdy,
  • a further object of this invention is to provide a pivot pin for a cooking utensil which enables easy and effective handling of the cooking utensil.
  • An aspect of the present invention discloses a pivot pin 03 for a pressure-cooking utensil wherein, the pivot pin comprising: a. a base 05 fixed to a container handle 02’; and b. a pivot surface 06 parallel to the base 05 receives a lid handle 01’ at a pivot point B at an underside of the lid handle 01’ to comprise an open- ended length of the lid handle 01’ greater than a close-ended length of the lid handle 01’.
  • pivot pin 03 for a pressure- cooking utensil
  • the pivot pin is characterized by a leaning geometry comprising: a. a bottom portion fixed to the handle; and b. the top portion leaning towards the center of the cooking utensil or vent weight.
  • Another aspect of the present invention is to provide a pivot pin for inner lid cooking utensil wherein, an open-ended length BC between the pivot point B to the effort point C is greater than the close-ended length AB between the load point A and pivot point B for reducing an external force applied on the lid handle 01’ for unlocking the lid handle 01’ from the container handle 02’ ;
  • Yet another aspect of the present invention is to provide a pivot pin for inner lid cooking utensil wherein, the pivot point B at the underside of the lid handle 01’ is shifted towards the vent weight A of the pressure cooking utensil such that the pivot point B is always closer to the center axis XX’, than the end of the handle D.
  • Yet another aspect of the present invention is to provide a pivot pin for inner lid cooking utensil wherein, the pivot pin is made using Bakelite, a material same as that of the handle and preferably using a single injection mould to make both, the pivot pin and the handle.
  • a further aspect of the present invention is to provide a pivot pin for inner lid cooking utensil wherein, the handle of the cooking utensil is reduced in length due to the leaning geometry of pivot pin resulting in strong fastening of handle to utensil body and a compact utensil.
  • Figure 1 shows perspective of an inner lid utensil with a pivot pin 03 having leaning geometry 03’.
  • Figure 2 shows the leaning geometry 03’ of the pivot pin towards the centre of the utensil.
  • Figure 3 shows a perspective view of pivot pin 03.
  • Figure 4 shows reduction in length of the handles.
  • a leaning geometry is defined as a shape of the pivot pin having at least one side or one part or one portion deviating from the perpendicular axis.
  • Centre of cooking utensil is defined as a point that is equidistant from all sides, ends or walls of the container of the utensil and matching the centre of the vent weight.
  • “Centre axis” is defined as an imaginary axis which is passing through the centre of the cooking utensil and vent weight.
  • Pivot point is defined as the top end of a pivot pin where the pivot action / function / mechanism takes place.
  • “Pivot action” is defined as turning, bending or oscillating movement happening over the “pivot pin” mentioned above, it may also be referred to as “pivot mechanism” or “pivoting action”, or “pivot function”.
  • a load point is defined as the point on the lever/arm/handle where a load is connected as shown in (A) of Fig. 4.
  • a close-ended length is defined as the length between a centre of the vent weight A and the pivot point B.
  • the cooking utensil of the present invention includes at least the following parts:
  • a container ; a container handle; a lid; a lid handle; a pivot pin, a hinge mechanism at the end of the handles.
  • An embodiment of the present invention discloses a pivot pin 03 for a pressure- cooking utensil wherein, the pivot pin comprising: a. a base 05 fixed to a container handle 02’; and b. a pivot surface 06 parallel to the base 05 receives a lid handle 01’ at a pivot point B at an underside of the lid handle 01’ to comprise an open- ended length of the lid handle 01’ greater than a close-ended length of the lid handle 01’.
  • An embodiment of the present invention discloses a pivot pin, wherein the pivot surface is at a predetermined height between 18 mm and 39 mm above the base and wherein the pivot point B at the underside of the lid handle 01’ is shifted towards the vent weight A of the pressure-cooking utensil by a distance of between 40 mm and 675 mm.
  • An embodiment of the present invention discloses a pivot pin, wherein the pivot surface 06 is covered by an implant made of a non-abrasive metal.
  • An embodiment of the present invention discloses a handle 03 for inner lid cooking utensil 100, wherein, the pivot pin 03 is characterized by a leaning geometry 03’ comprising: a. a base 05 fixed to the handle 02’; and b. the top portion 06 leaning towards the center of the cooking utensil.
  • An embodiment of the present invention discloses a pivot pin, wherein the base 05 extends into a leaning geometry 03’ ending at the pivot surface.
  • the pivot surface is at a predetermined height between 18 mm and 39 mm above the base.
  • An embodiment of the present invention discloses a pivot pin, wherein the pivot point B at the underside of the lid handle 01’is shifted towards the vent weight A of the pressure-cooking utensil by a distance of between 40 mm and 675 mm.
  • the pivot pin 03 for a pressure-cooking utensil as disclosed in the present invention wherein due to the leaning geometry 03’ of the pivot pin 03, the close- ended length AB between the load point which is located at center of the vent weight A and pivot point B remains less than the open-ended length BC between the pivot point B to the effort point C. Therefore, the open-ended length BC of the lid handle 01’ is greater than the close-ended length AB of the lid handle 01’.
  • the leaning geometry 03 of pivot pin 03 reduces the distance between the center of the vent weight (also the centre of the cooking utensil) and the pivot point of a pivot pin thereby reducing the length of the lid handle 01 and container handle 02 and in turn, resulting in stronger fastening of handle to utensil body.
  • a cooking utensil having a pivot pin meant for opening and/or closing mechanism of the cooking utensil, such a pivot pin includes a leaning geometry and comprises of a bottom portion and a top portion wherein the bottom portion is fixed to the container handle and the top portion leans towards the center of the vent weight (also the centre of the cooking utensil).
  • This reduced handle length is achieved by shortening the distance between AB, as the top end of the pivot pin, leans towards the center point, it allows the pivot point B to come closer, beyond the limitation of the supporting container handle which can only go as far as the external point D of the cooking utensil.
  • the pivot point B is therefore always closer to the center axis XX’, than the end of the handle D.
  • pivot pin is pushed in a position beyond the farthest point offered by the bottom supporting handle, which would be impossible without a leaning geometry of the pivot pin.
  • the pivot surface of the pivot pin maintains the length between the load point A and pivot point B.
  • Such length AB maintained by the pivot pin must always be less than the length BC between the pivot point and the effort point, to enable a pivot function / mechanism.
  • the pivot pin of the present invention having a leaning geometry wherein the pivot pin may be of a shape including but not limited to rectangular, crescent, cylindrical but most preferably triangular.
  • the pivot pin may be made up of a material selected from but not limited to Bakelite.
  • the pivot pin of the present invention may be made of a material same as that of the handle.
  • the pivot pin of the present invention may be made of a material same as that of the handle using a single injection mould to make both the handle and the pivot pin.
  • the cooking utensil of the present invention is selected from but not limited to an inner lid pressure cooker.
  • the pivot pin 03 for a pressure-cooking utensil made using the present invention wherein the open-ended length of the lid handle 01 is greater than the close-ended length of the lid handle 01 for reducing an external force applied on the lid handle 01 for unlocking the lid handle 01 from the container handle 02’ . hence, the amount of external force required to open and/or close the inner lid is less. Thus, the external force required to operate the opening and closing mechanism of the cooking utensil is reduced by at least 15%.
  • the force required to operate the opening and closing mechanism of the cooking utensil is reduced by min 4% and max 15%.
  • the force required to operate the opening and closing mechanism of the cooking utensil is reduced by 13%
  • the length of handle is reduced. Reduction in handle length enables strong clamping of the handle with the container body or bracket, resulting in sturdy fixing of handle. This is essential to ensuring safety of the user handling the utensil especially when cooking at high temperatures and additionally offers easy and effective handling of an inner lid utensil.
  • Figure 1 of the present invention shows a side view of an inner lid utensil 100.
  • an inner lid comprises a lid 01, a lid handle 01’, a container 02, a container handle 02’, a pivot pin 03 and a vent weight 04.
  • the center axis of the container 02 body is represented by XX’.
  • Figure 2 of the present invention shows pivot pin 03 leaning towards the center axis XX’ which is passing through the center of the container 02.
  • Figure 3 of the present invention shows a side view of the pivot pin 03.
  • the pivot pin 03 comprises a bottom part 05 which is connected with container handle 02’, a pivot surface 06 which is leaned towards the center axis XX’ of the container 02 and a leaning geometry 03’ and parallel to the base 05 receives a lid handle 01’ at a pivot point B at an underside of the lid handle 01’ to comprises an open-ended length of the lid handle 01’ greater than a closer-ended length of the lid handle 01’.
  • Figure 4 of the present invention shows reduction in the length of the lid handle 01’ and container handle 02’.
  • the point A on the lid handle 01’ is a load point which is located at the vent weight of the utensil
  • point B is a pivot point on an underside of the lid handle 01’and point C is an effort point on the lid handle 01’. Due to the inclination of the pivot point 03; the close-ended length AB between the load point A and pivot point B remains less than the open-ended length BC between the pivot point B to the effort point C. It allows the pivot point B to come or shift closer to the point A, beyond the limitation of the supporting container handle 02’ which can only go as far as the external point D of the cooking utensil. The pivot point B is therefore always closer to the center axis XX’, than the end of the handle D.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)

Abstract

Un axe de pivotement pour un ustensile de cuisson sous pression de la présente invention concerne un axe de pivotement (03) présentant une géométrie d'inclinaison (03') comprenant une partie inférieure (05) et une partie supérieure (06), la partie inférieure (05) étant fixée à la poignée de récipient (02') et la partie supérieure (06) s'inclinant en direction du centre de l'ustensile de cuisson. La géométrie d'inclinaison (03') de l'axe de pivotement (03) réduit la longueur de la poignée de couvercle (01') et de la poignée de récipient (02'), offrant un ustensile de cuisson robuste, compact et sûr.
PCT/IN2021/050612 2020-06-24 2021-06-23 Axe de pivotement pour un ustensile de cuisson sous pression WO2021260733A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202021026801 2020-06-24
IN202021026801 2020-06-24

Publications (1)

Publication Number Publication Date
WO2021260733A1 true WO2021260733A1 (fr) 2021-12-30

Family

ID=79282657

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2021/050612 WO2021260733A1 (fr) 2020-06-24 2021-06-23 Axe de pivotement pour un ustensile de cuisson sous pression

Country Status (1)

Country Link
WO (1) WO2021260733A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549243A (en) * 1946-01-19 1951-04-17 Landers Frary & Clark Pressure cooker closure fastener
EP2904950A1 (fr) * 2014-02-10 2015-08-12 Seb S.A. Autocuiseur à trou d'homme avec moyen de retenue du couvercle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549243A (en) * 1946-01-19 1951-04-17 Landers Frary & Clark Pressure cooker closure fastener
EP2904950A1 (fr) * 2014-02-10 2015-08-12 Seb S.A. Autocuiseur à trou d'homme avec moyen de retenue du couvercle

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