(19)
(11)EP 3 364 779 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
13.05.2020 Bulletin 2020/20

(21)Application number: 15788219.2

(22)Date of filing:  19.10.2015
(51)Int. Cl.: 
A23N 15/08  (2006.01)
A23N 5/00  (2006.01)
A47J 17/18  (2006.01)
(86)International application number:
PCT/IB2015/058009
(87)International publication number:
WO 2017/068390 (27.04.2017 Gazette  2017/17)

(54)

DEVICE AND METHOD FOR PEELING BEANS

VORRICHTUNG UND VERFAHREN ZUM BOHNENSCHÄLEN

DISPOSITIF ET PROCÉDÉ DE DECORTIQUER DES FÈVES


(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(43)Date of publication of application:
29.08.2018 Bulletin 2018/35

(73)Proprietor: Aluko, Olanrewaju
Lagos (NG)

(72)Inventor:
  • Aluko, Olanrewaju
    Lagos (NG)

(74)Representative: Hertin und Partner Rechts- und Patentanwälte PartG mbB 
Kurfürstendamm 54/55
10707 Berlin
10707 Berlin (DE)


(56)References cited: : 
WO-A1-2005/122801
GB-A- 165 345
GB-A- 2 506 847
DE-C- 342 441
GB-A- 2 284 140
  
  • DATABASE WPI Week 201447 Thomson Scientific, London, GB; AN 2014-N24839 XP002758848, -& CN 103 798 935 A (MIN AGRIC NANJING AGRIC MACHINERY RES IN) 21 May 2014 (2014-05-21)
  
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


Description

Technical Field



[0001] The present invention relates to a device for peeling beans and for separating the hulls from the peeled beans, and to a method for peeling beans and separating the hulls from the peeled beans.

Background Art



[0002] Delicacies made from peeled beans, particularly lentil and cowpea beans, provide a good source of protein and have numerous health benefits. However, peeling beans manually is laborious and discourages many from enjoying the different kind of meals that can be made from peeled beans.

[0003] Current peeling methods include soaking the beans and manually peeling by rubbing the soaked beans between palms after which multiple decanting with water will follow to separate the hull from the peeled beans. This method is time consuming and very tasking.

[0004] Some also use devices meant for blending to attempt beans peeling with risk of blending the beans in the process. This is usually followed by multiple decanting to separate the hulls from the peeled beans. The wastage of the beans lost to unintended blending and the time and water consumed makes this method undesirable.

[0005] Various machines for peeling beans are known. Some comprising rods to stir beans soaked in water thus creating a mixture containing beans and hulls. Reference is made to the following documents:

D1 DE 342441 C (TALLGREN H) 18 October 1921 (1921-10-18)

D2 PCT/IB2011/055390 (KONINKLIJKE PHILIPS ELECTRONICS N.V) 30 November 2011 (2011-11-30)

D3 GB 165345 A (HENRIK TALLGREN) 30 June 1921 (1921-06-30)



[0006] D1 and D3 disclose devices for peeling pretreated beans, peas, and other legumes, comprising beater rods, several screening areas, and flushing out peeled beans with pulsating stream of water.

[0007] D2 also discloses a device for dehulling beans, however, the device features are not described in details. It describes the use of a device for peeling beans and a second unit which can be a vacuum device fixed to or detachable from the main device or a separate vacuum device which could suck up the hulls. It further discloses that this second unit can be driven by the main driving motor, or alternatively by another driving means separated from the main driving motor.

[0008] The methods and devices described in D1, D2, and D3 have not been seen in any domestic application and may not have domestic or home application because of the size of the devices described.

[0009] In general, known methods and devices for peeling beans dry or wet are not fit for domestic or home use and, therefore, not readily available to the vast consumers of meals or delicacies made from peeled beans because of the bulky nature of the devices to accomplish the peeling.

[0010] There is currently no suitable method or device for peeling beans and separating the hull from the peeled beans in domestic or home applications. There is, therefore, a need to take the drudgery out of beans peeling and separation of the beans from the hulls. It is required to reduce the processing time, reduce beans wastage, minimize the use of water required during peeling of beans, and make the device compact for domestic application.

Summary of Invention



[0011] In view of the above, there is provided a novel solution to virtually eliminate the intense labour involved in peeling beans, reduce the time involved, optimize the use of water, and present a device and method, with many inventive steps, that can be used in domestic and industrial applications.

[0012] The definitions of the coat or skin of beans herein referred to as peelings or hulls, and what is left after coat removal, herein referred to as dehulled beans or peeled beans are well known in the art and are common terms.

[0013] In the first aspect of the invention, there is provided a device for peeling beans comprising a driving motor and a bowl where the beans in water is abrasively impacted with a rough disc in restricted compartment within the bowl so as to generate a mixture containing hulls and peeled beans.

[0014] In an embodiment of the invention, the peeling may commence immediately without first soaking the beans, since soaking and abrasive impacting of the beans will occur simultaneously in water. Optionally, the beans may be soaked for 3-5 minutes before commencement of peeling, depending on the type of beans.

[0015] In another embodiment of the invention, the beans is restricted by a barrier installed within the bowl to prevent the flow of beans beyond a first compartment, and to contain it within the peeling region, and is also an open gate to allow hulls pass to a second compartment within the bowl.

[0016] In a further embodiment of the invention, a special filter is provided within a second compartment of the bowl to gather the hulls from the water.

[0017] In the second aspect of the invention, there is provided a method for peeling beans comprising abrasively impacting the beans in water within a restricted compartment within the bowl, with a driving unit, to generate a mixture containing hulls and peeled beans.

[0018] In an embodiment of the invention, the peeling may commence immediately without first soaking the beans, since soaking and abrasive impacting of the beans will occur simultaneously in water. Optionally, the beans may be soaked for 3-5 minutes before commencement of peeling, depending on the type of beans.

[0019] In another embodiment of the invention there is provided a method to allow the hulls pass to a separate compartment during stirring of the mixture.

[0020] In a further embodiment of the invention, there is provided a method to allow collection of the hulls from the water during stirring of the mixture

[0021] In the present invention, there is provided a device and a method for peeling beans comprising a driving motor and a bowl where the beans in water is abrasively impacted with a rough disc in restricted compartment. The restriction being provided by a barrier that retains beans in the peeling region and is also a gate to allow hulls passage to a special filter that gathers the hulls from the water. Therefore, the peeled beans will remain in one compartment and the hulls are collected in a separate compartment within the bowl in a single process.

Brief Description of Drawings



[0022] The invention is now described in more details as follows:

Fig.1
[Fig.1] illustrates the Front View of the device for peeling beans and separating the hulls from the peeled beans according to the first aspect of the invention.

Fig.2
[Fig.2] illustrates an exploded view of the device for peeling beans and separating the hulls from the peeled beans according to the first aspect of the invention.

Fig.3
[Fig.3] illustrates the Plan View arrangement of major components of the device for peeling beans and separating the hulls from the peeled beans according to the first aspect of the invention.

Fig.4
[Fig.4] illustrates an open assembly view of the device for peeling beans and separating the hulls from the peeled beans according to the first aspect of the invention.

Fig.5
[Fig.5] schematically illustrates a flow chart of a method of peeling beans and separating the hulls from the peeled beans according to the second aspect of the invention.

Fig.6
[Fig.6] illustrates the flow pattern in the device for peeling beans and separating the hulls from the peeled beans during use.


Description of Embodiments



[0023] The first reference is made to Fig 1, Fig 2, Fig 3, and Fig 4 which illustrates various aspects of the architecture of the device for peeling beans and separating the hulls from the peeled beans according to an embodiment the invention

[0024] As illustrated in Fig 1 the present invention comprises of an electric motor (1) coupled to a bowl (2) with a shaft to drive a rough disc (3) having rough surfaces. The rough disc (3) abrasively impacts the beans in water and creates a vortex flow of water, beans, and the hulls.

[0025] In an embodiment of the present invention, the peeling may commence immediately without first soaking the beans, since soaking and abrasive impacting of the beans will occur simultaneously in water. The rough disc (3) is intended to rip off the hulls from the beans in small broken pieces while the peeled beans remain unbroken and relatively large within the mixture.

[0026] Optionally, the beans may be soaked for 3-5 minutes before commencement of peeling, depending on the type of beans, or may even be pretreated before introducing into the bowl (2).

[0027] In another embodiment of the present invention, a vortex flow is created during stirring of the mixture whereby the centrifugal force tends to push the mixture upwards along the wall of the bowl, and the beans is restricted by a barrier ring (4) to prevent the flow of beans beyond a first compartment, and to contain it within the peeling region.

[0028] In a further embodiment of the invention, the barrier ring (4) having gaps between the rings is sized to allow hulls to pass to a second compartment within the bowl. The resultant mixture is forced upwards against the underside of the barrier ring (4), enabling the intended separation of hulls and peeled beans.

[0029] In a still further embodiment of the invention, there is provided a special filter (5) in the second compartment of the bowl (2), with multiple side funnels, to gather the mixture of the water and the hulls. The water returns to the first compartment of the bowl (2) while the hulls remain in the special filter (5).

[0030] A lid (6) is provided for the bowl (2) for containment and for safety, and may be equipped with an apparatus to further keep the special filter (5) in position during peeling operation. It may also have a hood for adding more water, if required, during use.

[0031] The second reference is made to Fig 5 which schematically illustrates a flow chart of a method of peeling beans and separating the hulls from the peeled beans according to another embodiment of the invention.

[0032] As illustrated in Fig 5 at step 100, the beans in water is abrasively impacted by a rough disc in a restricted compartment to produce a mixture of hulls and peeled beans

[0033] At step 200 the size of the particles in the mixture is checked at the barrier ring (4). If hulls have been produced and the size is less than specified gap between the rings of the barrier ring (4), say 3mm, they pass to step 300, else step 100 continues.

[0034] At step 300 some of the hulls produced from step 100 have reached the second compartment of the bowl (2) having passed through the barrier ring (4), the flow being powered by the centrifugal force from rotation of a rough disc (3) driven by an electric motor (1).

[0035] At step 400 the size of the hulls in the water is checked. If hull size is more than a specified gap of mesh, say 0.5mm, they are trapped by a filter.

[0036] At step 500 the hulls are trapped after the check of step 400. The trapping apparatus is a special filter (5) having multiple side funnel to gather the mixture from the wall of the bowl (2) towards the center.

[0037] At step 600 the water in the mixture gathered by the special filter (5) drains back to the first compartment of the bowl (2) through the mesh of the special filter (5).

[0038] Step 100-600 continue simultaneously until virtually all the bean seeds are peeled and remain in the first compartment, while most of the hulls are trapped in the special filter (5) in the second compartment of the bowl (2).

[0039] The third reference is made to Fig 6 which illustrates the flow pattern in the device for peeling beans and separating the hulls from the peeled beans during use.

[0040] As illustrated in Fig 6 a U-shaped flow pattern is formed during rotation of the rough disc (3) and a barrier ring (4) restricts the extent of flow of beans within the mixture, while allowing the hulls to reach a second compartment where a special filter (5) with multiple funnel gathers the mixture from the wall of the bowl and directs it towards the center for trapping of the hulls.

[0041] The present invention is by no means limited to the disclosed embodiments. The invention extends to any novel combination of the features disclosed, or modification and equivalent arrangements of devices, or the steps, or methods, or processes so disclosed.

Industrial Applicability



[0042] There is a growing trend for legume consumption, especially processed beans, particularly peeled beans for making different kinds of meals with huge health benefits.

[0043] The present invention will provide every household, restaurants, hotels, food processing plants, and similar industry, a device for conveniently peeling beans, and separating the hulls, before further processing the peeled beans into desired delicacies.

[0044] There is provided a compact, efficient, and effective peeling method for beans in domestic and industrial application.


Claims

1. A device for peeling beans and separating the hulls from peeled beans, characterized by and comprising a rough disc (3) inside a bowl (2) wherein said disc (3) is suitable for abrasively impacting beans in water and intended to rip off the hulls from the beans within a peeling region bounded by a barrier ring (4) which prevents the beans but allows the hulls to pass to a collection region where the hulls may be trapped by a special filter (5), and an electric motor (1) for driving the rough disc (3).
 
2. The device according to claim 1, comprising a barrier ring (4) having multiple rings which may be equally spaced for separation of peeled beans and hulls.
 
3. The device according to claim 1, comprising a special filter (5) with multiple funnels to gather and trap the hulls.
 
4. The device according to claim 1 and 3, wherein the special filter further comprises a mesh that is sized to trap the hulls.
 
5. A method for peeling beans and separating the hulls from peeled beans, characterized by and comprising driving a rough disc (3) wherein said disc (3) is suitable to abrasively impact beans in water and rips off the hulls from the beans within a bounded region, and separating the hulls from the beans by a double-stage filtration process, wherein the compartment for peeling is restricted by a barrier that is also the first stage filter to separate the peeled beans from the hulls, and the remaining mixture gathered in a second stage filter to trap the hulls.
 


Ansprüche

1. Vorrichtung zum Bohnenschälen und Trennen der Hülsen von geschälten Bohnen, gekennzeichnet durch und umfassend eine raue Scheibe (3) innerhalb einer Schale (2), wobei die Scheibe (3) geeignet ist, um Bohnen aufreibend in Wasser aufprallen zu lassen und dazu gedacht ist, die Hülsen innerhalb einer Schälregion von den Bohnen zu streifen, die durch einen Barrierering (4) begrenzt ist, der verhindert, dass die Bohnen, aber ermöglicht, dass die Hülsen eine Sammelregion passieren, in der die Hülsen durch einen Spezialfilter (5) eingefangen werden können, und einen Elektromotor (1) zum Antreiben der rauen Scheibe (3).
 
2. Vorrichtung nach Anspruch 1, umfassend einen Barrierering (4), der mehrere Ringe aufweist, die zur Trennung von geschälten Bohnen und Hülsen gleichmäßig beabstandet sein können.
 
3. Vorrichtung nach Anspruch 1, umfassend einen Spezialfilter (5) mit mehreren Trichtern, um die Hülsen zu sammeln und einzufangen.
 
4. Vorrichtung nach Anspruch 1 und 3, wobei der Spezialfilter ferner ein Netz umfasst, das größenbemessen ist, um die Hülsen einzufangen.
 
5. Verfahren zum Bohnenschälen und Trennen der Hülsen von geschälten Bohnen, gekennzeichnet durch und umfassend das Antreiben einer rauen Scheibe (3), wobei die Scheibe (3) geeignet ist, um Bohnen aufreibend in Wasser aufprallen zu lassen und die Hülsen innerhalb einer begrenzten Region von den Bohnen abstreift, und das Trennen der Hülsen von den Bohnen durch einen doppelstufigen Filtrationsvorgang, wobei das Fach zum Schälen durch eine Barriere eingegrenzt ist, die auch der Filter erster Stufe zum Trennen der geschälten Bohnen von den Hülsen ist, und die übrige Mischung in einem Filter zweiter Stufe gesammelt wird, um die Hülsen einzufangen.
 


Revendications

1. Dispositif pour peler des fèves et séparer les coques des fèves pelées, caractérisé par et en ce qu'il comprend un disque rugueux (3) à l'intérieur d'un bol (2) dans lequel ledit disque (3) est conçu pour percuter de manière abrasive des fèves dans de l'eau et destiné à arracher les coques des fèves à l'intérieur d'une région de pelage délimitée par un anneau de protection (4) qui empêche les fèves mais permet aux coques de passer vers une région de collecte où les coques peuvent être piégées par un filtre spécial (5), et un moteur électrique (1) pour entraîner le disque rugueux (3).
 
2. Dispositif selon la revendication 1, comprenant un anneau de protection (4) ayant plusieurs anneaux qui peuvent être espacés de manière égale pour la séparation des fèves pelées et des coques.
 
3. Dispositif selon la revendication 1, comprenant un filtre spécial (5) avec plusieurs entonnoirs pour recueillir et piéger les coques.
 
4. Dispositif selon la revendication 1 et 3, dans lequel le filtre spécial comprend en outre un maillage qui est dimensionné pour piéger les coques.
 
5. Procédé pour peler des fèves et séparer les coques des fèves pelées, caractérisé par et en ce qu'il comprend un disque rugueux (3) dans lequel ledit disque (3) est conçu pour percuter de manière abrasive des fèves dans de l'eau et arracher les coques des fèves à l'intérieur d'une région délimitée, et séparer les coques des fèves par un processus de filtrage à deux étages, dans lequel le compartiment pour peler est limité par une barrière qui est également le filtre de premier étage pour séparer les fèves pelées des coques, et le mélange restant étant recueilli dans un filtre de second étage pour piéger les coques.
 




Drawing





















REFERENCES CITED IN THE DESCRIPTION



This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

Patent documents cited in the description