DK145331B - KNIFE SHEATH - Google Patents
KNIFE SHEATH Download PDFInfo
- Publication number
- DK145331B DK145331B DK541476AA DK541476A DK145331B DK 145331 B DK145331 B DK 145331B DK 541476A A DK541476A A DK 541476AA DK 541476 A DK541476 A DK 541476A DK 145331 B DK145331 B DK 145331B
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- DK
- Denmark
- Prior art keywords
- knife
- blade
- carrier
- sharpening
- reaction
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
- B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
- B24D15/08—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors
- B24D15/084—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors the sharpening elements being fitted to knife sheaths, holders or handles
Description
14533 114533 1
Opfindelsen angår en knivskede af den i krav 1T s indledende del angivne art, hvilke knivskeder kendes f.eks. fra de australske patentskrifter b2k.122 og UU7-537·The invention relates to a knife sheath of the type specified in the preamble of claim 1T, which knife sheaths are known e.g. from Australian patents b2k.122 and UU7-537 ·
Disse knivskeder har fjederorganer, som søger at hol-5 de bæreorganet med skærpeaggregatet trykket i retning, mod reaktionsorganet, og dette dels med en reaktionszone mod knivryggen og med en anden mod bæreorganet og således, at der uanset bladbredden skulle kunne opretholdes et nogenlunde konstant tryk mellem skærpeaggregatet og knivæggen. Det-10 te har imidlertid i praksis vist sig ikke med sikkerhed at kunne opnås. Som følge af den manuelle betjening af kniven under dens forskydning i huset vil knivskæftet ofte blive trykket opad, hvilket gennem reaktionsorganet bevirker en svingning af bæreorganet bort fra reaktionsorganet med et 15 reduceret tryk mellem skærpeaggregatet og knivæggen som følge, ligesom kniven manuelt kan trykkes mere eller mindre hårdt mod skærpeaggregatet, hvilke varierende tryk ikke kan ophæves af samarbejdet mellem bæreorganet og reaktionsorganet. Et varierende tryk mellem skærpeaggregatet og 20 knivæggen vil imidlertid bevirke, at der langs æggen foretages varierende materialeafskrabninger med en ujævn knivæg som følge. Også det forhold, at knivbladet under sin bevægelse kan holdes mere eller mindre skråt -i forhold til skærpeaggregatet medvirker til frembringelse af en ujævn 25 æg, idet det kan medføre varierende skærevinkler, dvs. vinkler mellem æggens to begrænsningsflader.These knife sheaths have spring means which seek to hold the support member with the sharpener pressed in the direction towards the reaction means, and this partly with a reaction zone against the knife back and with another against the support means, and so that, regardless of the blade width, a relatively constant pressure should be maintained. between the sharpening unit and the knife wall. However, in practice, this has not proved to be achievable in practice. Due to the manual operation of the knife during its displacement in the housing, the knife shank will often be pushed upwards, which through the reaction means causes a swing of the support member away from the reaction means with a reduced pressure between the sharpening unit and the knife wall as a result, and the knife can be manually pressed more or more. less hard against the sharpening assembly, which varying pressures cannot be relieved by the cooperation between the support member and the reaction member. However, a varying pressure between the sharpening unit and the knife wall will cause varying material scrapings along the egg to be made with an uneven knife wall as a result. Also, the fact that the knife blade during its movement can be held more or less oblique with respect to the sharpening assembly contributes to the production of an uneven egg, since it can cause varying cutting angles, ie. angles between the two limiting surfaces of the egg.
En knivskede af noget tilsvarende art kendes også fra svensk offentliggørelsesskrift 356.21*7, ved hvilken knivskede dog bæreorganet mangler, idet skærpeaggregatet 30 er anbragt i selve huset. Ved denne kendte knivskede holdes reaktionsorganet mod knivryggen ved fjederkraft og således, at reaktionsorganets reaktionszone er forskudt et stykke bagud i huset i forhold til skærpeaggregatet. Når kniven manuelt forskydes frem og tilbage i huset, hvor-35 under knivspidsen sædvanligvis følger en styreflade ved dettes bund, vil knivbladet ofte blive løftet fri af skærpeaggregatet eller manuelt blive trykket mod dette med et 145331 C.A knife sheath of a similar nature is also known from Swedish publication specification 356.21 * 7, in which, however, the knife sheath lacks the carrier, since the sharpening assembly 30 is arranged in the housing itself. At this known knife sheath, the reaction means is held against the knife back by spring force and so that the reaction zone of the reaction means is displaced a little behind in the housing relative to the sharpening unit. When the knife is manually moved back and forth in the housing, during which the knife tip usually follows a guide surface at its bottom, the knife blade will often be lifted free of the sharpening assembly or manually pressed against it with a 145331 C.
fjederkraften overstigende tryk, saledes at det ved denne kendte knivskede heller ikke er muligt blot nogenlunde at sikre et ensartet tryk mellem skærpeaggregatet og knivæggen og dermed en glat skærpeoperation.the spring force exceeding pressure, so that, by this known knife sheath, it is also not possible to justify a uniform pressure between the sharpening unit and the knife wall and thus a smooth sharpening operation.
5 Den nævnte ulempe er delvis søgt afhjulpet ved den fra svensk offentliggørelsesskrift 368.163 kendte knivskede, der afviger fra den knivskede, den foreliggende opfindelse angår, derved, at reaktionsorganet er svingeligt lejret i selve bæredelen og har en af husets overvæg styret reak-10 tionszone for knivryggen beliggende nærmest lige over skærpeaggregatet, og hvilket reaktionsorgan ved bæreorganets svingning som følge af tiltagende bladbredde overtager en tiltagende del af den fjederkraft, som påvirker bæredelen, således at der skulle kunne opretholdes et nogenlunde kon-15 stant tryk mellem knivæg og skærpeaggregat. Ved den manuelle ind- og udføring af kniven, vil knivbladsspidsen i det mindste under en del af bevægelsen ledes over en styreflade på hæreorganet, og trækkes herunder knivskæftet manuelt noget opad, vil bæreorganet svinge nedad, så at skærpeag-20 gregatet helt eller delvis fjernes fra knivbladets æg med ujævn skærpning til følge. Endvidere vil knivbladet under den manuelle operation også ofte holdes direkte trykket mod skærpeaggregatet med væsentligt større kraft end den af fjederorganet frembragte, hvilket også resulterer i ujævn 25 skærpning.Said disadvantage is partially solved by the knife sheath known from Swedish publication specification 368,163, which differs from the knife sheath of the present invention, in that the reaction means is pivotally mounted in the support part itself and has a reaction zone controlled by the overweight body for the knife back is located almost directly above the sharpening assembly, and which reaction means at the oscillation of the support due to increasing blade width assumes an increasing part of the spring force which affects the support part, so that a relatively constant pressure between the knife wall and the sharpening unit can be maintained. In the manual insertion and execution of the knife, at least part of the movement of the knife blade tip will be guided over a guide surface of the arm member, and if the knife blade is pulled slightly upwards manually, the support member will swing downwards so that the sharpening unit is completely or partially removed. from the blade of the blade with uneven sharpening as a result. Furthermore, during the manual operation, the knife blade will also often be held directly pressed against the sharpening assembly with substantially greater force than that produced by the spring means, which also results in uneven sharpening.
Formålet med opfindelsen er at angive en knivskede af den omhandlede art, ved hvilken det er muligt at sikre en i alt væsentligt ensartet skærpning af æggen over hele dennes længde til trods for, at kniven betjenes manuelt.The object of the invention is to provide a knife sheath of the kind in which it is possible to ensure a substantially uniform sharpening of the egg over its entire length, despite the fact that the knife is operated manually.
30 Ifølge opfindelsen er dette opnået ved den i krav 1's kendetegnende del angivne udformning. Denne medfører, at reaktionsorganet vil påvirke knivbladet såvel foran som bag ved bæreorganets svingningsakse, medens knivbladet kommer i indgreb med skærpeaggregatet foran denne svingnings-35 akse og ligger an mod bæreorganet bag ved denne. Resultatet er, at såvel reaktionsorganet som bæreorganet vil følge 145331 3 med op og ned ved op- og nedadgående bevægelser af knivskæftet, uden at disse bevægelser influerer væsentligt på indgrebet mellem knivbladsæggen og skærpeaggregatet, så at der opnås en glat skærpning. Dette resultat sikres yderligere 5 som følge af, at trykorganerne er indskudte mellem bære- og reaktionsorganet, således at den kraft, hvormed disse to organer holdes trykket i retning mod hinanden, også er uafhængig af op- og nedadgående forskydnings- eller svingningsbevægelser af knivskæftet.According to the invention, this is achieved by the design according to the characterizing part of claim 1. This causes the reaction means to affect the blade both in front and behind the pivot axis of the carrier, while the knife blade engages the sharpening assembly in front of this pivot axis and abuts the carrier behind it. The result is that both the reaction means and the carrier will follow up and down with up and down movements of the knife shaft, without these movements significantly affecting the engagement between the blade blade and the sharpening assembly so that a smooth sharpening is achieved. This result is further ensured because the thrust means are inserted between the support and the reaction means so that the force by which these two means are held in the direction of each other is also independent of up and down shear or oscillation movements of the knife shank.
10 Fordelagtigt kan ifølge opfindelsen udformningen yder ligere være som angivet i krav 2, hvorved det sikres, at knivbladet under sin bevægelse ind i og ud af huset tvinges til at følge en bestemt bane, så at heller ikke sidegående påvirkninger af knivbladet vil kunne bevirke en ændring 15 af den kraft, hvormed knivbladet af den mellem bære- og reaktionsorganet frembragte trykpåvirkning holdes mod skærpeaggregatet og dermed en ujævn skærpning, samtidigt med, den af bunden i slidsen dannede styreflade for knivspidsen bliver så smal, at der sikres en afbalanceret påvirkning 20 af bæreorganet på begge sider af dets svingningsakse og dermed det mest ensartede samarbejde med reaktionsorganet.Advantageously, according to the invention, the configuration may be further as set out in claim 2, thereby ensuring that the blade during its movement into and out of the housing is forced to follow a certain path, so that no lateral effects on the blade can cause a changing the force by which the knife blade of the pressure effect produced between the carrier and the reaction means is held against the sharpening assembly and thus an uneven sharpening, at the same time as the cutting surface formed by the bottom of the slit becomes so narrow that a balanced influence 20 of the support member on both sides of its axis of oscillation and thus the most uniform cooperation with the reaction member.
Endvidere kan ifølge opfindelsen udformningen være som angivet i krav 3, således at den bageste del af bæreorganet påvirkes ensartet fra reaktionsorganet såvel før som 25 efter, at knivbladet eventuelt tvinger disse to organers bageste dele fra hinanden, således at de under alle omstændigheder kan virke som en enhed, der følger knivskæftets lodrette bevægelser til sikker styring af knivæggen i forhold til skærpeaggregatet.Furthermore, according to the invention, the configuration can be as claimed in claim 3, such that the rear part of the support member is uniformly affected from the reaction member as well as before and after the knife blade optionally forces the rear parts of these two members so that they can in any case act as a device that follows the vertical movement of the knife shank for safe control of the knife edge relative to the sharpening assembly.
30 Til sikring af, at knivæggen af reaktionsorganet hol des trykket mod skærpeaggregatet med et så ensartet tryk som muligt, kan ifølge opfindelsen udformningen yderligere være som angivet i krav 1+, idet en sådan U-formet fjeders sammenspændingskraft inden for et vidt område er nærmest uaf-35 hængig af afstanden mellem fjederenderne, samtidigt med at en sådan fjeder er lidet pladsoptagende i husets bredderetning og derfor ikke influerer på husets form. En sådan 145331 u fjeder har ganske vist en forholdsvis stor længde, men vil dog være væsentligt kortere end de længste knivblade, hvortil knivskeden er bestemt.In order to ensure that the knife wall of the reaction means is kept pressed against the sharpening assembly with as uniform pressure as possible, the design according to the invention can further be as set out in claim 1+, since the compressive force of such a U-shaped spring within a wide range is closest. depending on the distance between the spring ends, at the same time that such a spring is not accommodating in the width direction of the housing and therefore does not influence the shape of the housing. Such a spring has a relatively large length, but will be considerably shorter than the longest blade blades for which the blade sheath is intended.
Ydermere kan ifølge opfindelsen udformningen være 5 som angivet i krav 5, hvorved ikke alene opnås, at skærpeaggregatet kan tilpasse sig knivbladets bevægelsesretning, men også, at dets fjederorganer i nogen grad tilpasser sig det tryk, hvormed knivæggen trykkes mod skærpeaggregatet af de bære- og reaktionsorganerne forbindende trykorganer, 10 hvorved skærpetrykket bliver endnu mere konstant. Denne virknings betydning forøges som følge af, at fjederorganernes indvirkning på skærpeaggregatet foregår til siden for skærpeaggregatets indgrebszone med knivbladet, så at skærpeaggregatet til trods for dets svingelighed fasthol-15 des uden slør, til sikring af en regelmæssig skærpning.Furthermore, according to the invention, the configuration can be 5 as claimed in claim 5, whereby not only is it achieved that the sharpening unit can adapt to the direction of movement of the blade, but also that its spring means adapt to some extent to the pressure with which the knife wall is pressed against the sharpening unit by the the reaction means connecting pressure means 10, whereby the sharpening pressure becomes even more constant. The effect of this action is increased because the action of the spring means on the sharpening unit is offset to the side of the sharpening unit's engagement zone with the knife blade, so that the sharpening unit, despite its swingability, is retained without a veil, to ensure a regular sharpening.
Ganske vist vil dette kunne medføre, at skærpeaggregatet af fjederorganerne fastholdes således, at den ene side af knivbladsæggen afskrabes noget kraftigere end den anden, men denne virkning kan modarbejdes, såfremt udformningen 20 ifølge opfindelsen desuden er som angivet i krav 6, så at skærpeaggregatet i afhængighed af knivbladets forskydningsretning fastholdes i den ene eller den anden af to i forhold til knivbladet symmetriske stillinger.Admittedly, this may cause the sharpening assembly of the spring means to be retained such that one side of the blade blade is scraped off somewhat more forcefully than the other, but this effect can be counteracted if the embodiment 20 of the invention is additionally as defined in claim 6 so that the sharpening assembly in dependence on the shear direction of the blade is maintained in one or the other by symmetrical positions relative to the blade.
Opfindelsen vil i det følgende blive nærmere forkla-25 ret under henvisning til tegningen, på hvilken fig. 1 viser en udførelsesform for en knivskede iføl-• ge opfindelsen, set fra oven, fig. 2 et længdesnit efter linien II-II i fig. 1, fig. 3 et længdesnit svarende til det i fig. 2 viste, 30 men med et knivblad indsat i skeden, fig. et længdesnit efter linien IV-IV i fig. 1, fig. 5 et længdesnit svarende til det i fig. U, men med et knivblad i indgreb med skærpeaggregatet, fig. 6 et tværsnit efter linien VI-VI i fig. 5, 35 fig. T et tværsnit efter linien VII-VII i fig. 5, fig. 8 et i fig- 7 vist bæreorgan, set fra oven, fig. 9 et længdesnit efter linien IX--IX i fig. 8, 145331 5 fig. 10 til 12 tværsnit efter linierne henholdsvis X-X, XI-XI og XII-XII i fig. 9, fig. 13 en del af det i fig. 9 viste bæreorgan med en styresektion bevæget til uvirksom stilling, og 5 fig. H til 18 skematiske fremstillinger af de for skellige kraftreaktioner og kraftlinier ved forskellige trin af en enkelt skærpeoperation under anvendelse af den i de foregående figurer viste knivskede.The invention will be explained in more detail below with reference to the drawing, in which: FIG. 1 is a plan view of an embodiment of a knife sheath according to the invention; FIG. 2 is a longitudinal section along line II-II of FIG. 1, FIG. 3 is a longitudinal section similar to that of FIG. 2, but with a knife blade inserted into the vagina; FIG. a longitudinal section along line IV-IV in fig. 1, FIG. 5 is a longitudinal section similar to that of FIG. U, but with a knife blade in engagement with the sharpening unit, fig. 6 is a cross-sectional view taken along line VI-VI of FIG. 5, 35 FIG. T a cross section along line VII-VII of FIG. 5, FIG. 8 is a top view of a carrier shown in FIG. 7; FIG. 9 is a longitudinal section along line IX - IX of FIG. 8, FIG. 10 to 12 are cross sections along the lines X-X, XI-XI and XII-XII respectively of FIG. 9, FIG. 13 is a portion of FIG. 9 with a control section moved to idle position, and 5 fig. H to 18 schematic representations of the different force reactions and lines of force at different stages of a single sharpening operation using the knife sheath shown in the previous figures.
Den på tegningen viste udførelsesform for en kniv-10 skede ifølge opfindelsen omfatter de grundelementer, som også er anvendte i den i australsk patent nr. UU7.537 beskrevne knivskede. Den viste knivskede omfatter således et hus 2, der definerer en til optagelse af kniven bestemt kanal 3, fig. 2 og 3, et bæreorgan 1*, der er svingeligt an-15 bragt i huset 2 og understøtter et skærpeaggregat 5, fig.The embodiment of a knife sheath according to the invention shown in the drawing comprises the basic elements which are also used in the knife sheath described in Australian Patent No. UU7,537. The knife sheath shown thus comprises a housing 2 defining a channel 3 for receiving the knife, fig. 2 and 3, a support member 1 * pivotally arranged in the housing 2 and supporting a sharpening assembly 5;
5 og 6, samt et reaktionsorgan 6, der er bestemt til at samarbejde med et knivblad 7, fig- 3, 5 og 6, når dette indsættes i huset 2. I sådanne knivskeder kræves trykorganer til frembringelse af et tryk mellem skærpeaggregatet 5 og 20 knivbladet 7, således at der opnås en effektiv skærpning af dette, og i tidligere kendte knivskeder af den omhandlede art har trykorganerne sædvanligvis været udformede som en fjeder, som indvirker mellem huset 2 og knivbladet 7 eller en i knivskeden indgående anden komponent f.eks.5 and 6, and a reaction means 6 intended to cooperate with a knife blade 7, Figs. 3, 5 and 6 when inserted into the housing 2. In such knife sheaths, pressure means are required to produce a pressure between the sharpening assembly 5 and 20. the knife blade 7 so that an effective sharpening thereof is obtained, and in prior art knife sheaths of the kind in question, the pressure means have usually been designed as a spring which acts between the housing 2 and the knife blade 7 or another component included in the knife sheath e.g.
25 bæreorganet U.The carrier means U.
I knivskeden ifølge opfindelsen er bæreorganet i* vippeligt lejret, så at det kan tilpasse sig de stillinger et dermed i indgreb værende knivblad kan indtage, og reaktionsorganet 6 er også svingeligt lejret i huset 2 og er således 30 anbragt, at det kan komme i indgreb med bæreorganet k og et knivblad 7 på en sådan måde, at der opnås en forholdsvis glat skærpevirkning. Ifølge en fortrukken udførelsesform for knivskeden ifølge opfindelsen indvirker trykorganerne på to i forhold til hinanden bevægelige dele i huset såle-35 des, at det er vanskeligt at bevæge knivbladet 7 fri af skærpeaggregatet under en skærpeoperation.In the knife sheath according to the invention, the support member is tiltably mounted so that it can adapt to the positions of a knife blade thus engaged, and the reaction means 6 is also pivotally mounted in the housing 2 and is arranged so that it can engage. with the support member k and a knife blade 7 in such a way that a relatively smooth sharpening effect is obtained. According to a preferred embodiment of the knife sheath according to the invention, the pressure means act on two movable parts in the housing in such a way that it is difficult to move the knife blade 7 free of the sharpening unit during a sharpening operation.
145331 6145331 6
Relative udtryk, såsom "øvre", "nedre", "forende" og "bagende", vil i den foreliggende beskrivelse blive anvendt i forbindelse med den viste udførelsesform. Sådanne udtryk er imidlertid anvendt for letheds skyld og skal ikke opfat -5 tes som begrænsninger med hensyn til den måde, hvorpå knivskeden anbringes eller holdes under brug.Relative terms such as "upper", "lower", "front" and "rear" will be used in the present description in connection with the embodiment shown. However, such terms are used for ease and should not be construed as limitations on the manner in which the knife sheath is placed or held during use.
Huset 2 er i alt væsentligt udformet som det i australsk patentskrift ^7-537 viste. I særdeleshed er således kanalen 3, fig. 2 og 3, begrænset af modstående side-10 vægge 8, en overvæg 9 og en bund 10 i huset 2, og indføringsåbningen 11 forefindes ved huset 2's forende 12. Bæreorganet 4 udgøres hensigtsmæssigt af et aflangt element, som er anbragt i kanalen 3, således at det i alt væsentligt strækker sig i denne kanals længderetning. Bæreorganet ^ 15 er svingeligt forbundet med huset ved et sted, som er beliggende inden for indføringsåbningen 11. I den viste udførelsesform er denne i det følgende nærmere beskrevne sving- er o forbindelse beliggende mellem bæreorganets ender og/saledes udformet, at bæreorganet kan udløses fra forbindelsen og så-20 ledes gennem indføringsåbningen 11 trækkes ud af huset 2.The housing 2 is substantially designed as shown in Australian Patent Specification ^ 7-537. Thus, in particular, the channel 3, FIG. 2 and 3, limited by opposite side-10 walls 8, a top wall 9 and a bottom 10 in the housing 2, and the insertion opening 11 is provided at the front end of the housing 2. The supporting member 4 is suitably constituted by an elongate element arranged in the channel 3, so that it extends substantially in the longitudinal direction of this channel. The support member 15 is pivotally connected to the housing at a location located within the insertion opening 11. In the illustrated embodiment, the following described oscillations are located between the ends of the support member and thus configured so that the support member can be released from the connection and then passed through the insertion opening 11 is pulled out of the housing 2.
Udformningen af bæreorganets vippemulighed fremgår bedst af fig. 3, 5 og 7. Vippemekanismen omfatter to cylindriske akseldele 13, som strækker sig indad fra husets to modstående sidevægge 8, og som griber ind i udtagninger 25 1U i hver sin af bæreorganet 4's sider. Hver udtagning 1U1 s øverste flade 15 udgør en lejeflade, der kan være buet eller, som vist, flad, og den tilhørende akseldel 13 holdes i indgreb med fladen 15 ved hjælp af eftergivelige holdeorganer, selv om også andre midler kan anvendes til nævnte 30 formål. Ved den viste udførelsesform består de eftergive-lige holdeorganer hver af en bladfjeder 16, der er udformet i et med bæreorganet h og er bestemt til at gribe ind under den tilhørende akseldel 13. Hver akseldel 13 har fortrinsvis sin egen bladfjeder 16, så at der forekommer et 35 mellemrum mellem de to fjedre 16 som passage for et knivblad 7, men i visse tilfælde kan en enkelt fjeder 16 indvirke på begge akseldele 13- Yderligere kan hver fjeder 145331 7 16 også være fastgjort til selve bæreorganet k i stedet for at være udformet i et med dette. Hver bladfjeder 16's overside 17 danner i den viste udførelsesform bunden i en indføringsrille 18 på hver side af bæreorganet !+, således at 5 akseldelen 13 mekanisk styres til korrekt stilling, når bæreorganet U indsættes i huset 2. En sådan udformning gør det muligt, at bæreorganet 1+ hurtigt kan bringes til at springe i stilling, og muliggør samtidig en hurtig frigørelse af bæreorganet ^ fra dets svingforbindelse.The design of the tilting means of the carrier is best shown in FIG. 3, 5 and 7. The rocker mechanism comprises two cylindrical shaft portions 13 extending inwardly from the two opposite side walls 8 of the housing and engaging in recesses 25 1U on each of the sides of the carrier 4. Each upper surface 15 of the recess 1U1 constitutes a bearing surface which may be curved or, as shown, flat, and the associated shaft portion 13 is held in engagement with the surface 15 by resilient retaining means, although other means may also be used for said purposes. . In the illustrated embodiment, the resilient retaining means each consists of a leaf spring 16 which is formed integrally with the supporting member h and is intended to engage under the associated shaft member 13. Each shaft member 13 preferably has its own leaf spring 16 so that there is a gap between the two springs 16 as a passage for a blade 7, but in some cases a single spring 16 can act on both shaft parts 13. Further, each spring may also be attached to the carrier itself in place of being formed. in one with this. The upper surface 17 of each leaf spring 16, in the illustrated embodiment, forms the bottom of an insertion groove 18 on each side of the support member +, so that the shaft member 13 is mechanically guided to the correct position when the support member U is inserted into the housing 2. Such a design allows the support member 1+ can be quickly paused, and at the same time enables a quick release of the support member ^ from its pivotal connection.
10 I den viste udførelsesform strækker bæreorganet h's forreste endedel 19 sig ud frem for husets indføringsåbning 11, og skærpeaggregatet 5 er anbragt på bæreorganet ^ i nærheden af denne åbning 11. Skærpeorganet 5 kan som vist være således anbragt, at det kan udføre begrænsede vippe-15 bevægelser i forhold til bæreorganet og det har en på det nærmeste V-formet skærpegennemgaig 2 1 , som i det mindste under normal betjening af knivskeden, er lavere beliggende end bæreorganet b's øverste flade 22, fig. 9. Skærpeaggregatet 5 er frigjort i forhold til bæreorganet k's øverste 20 flade 22 ved hjælp af en knivoptageslids 23, fig. 8, der strækker sig i bæreorganet 1+' s længderetning, fortrinsvis såvel foran som bagved skærpeaggregatet 5. I det mindste en del af slidsen 23's sideflader virker som styreflader til modarbejdelse af sidevipning af et knivblad 7, som ind-25 sættes i huset 2. Den i den forreste del af bæreorganet 1» værende slidsdel 23a har en bund 2k, fig. 9, der også tjener til styring af et knivblad 7 ind i skærpegennemgangen 21 i en passende højde, og i det mindste en del af slidsdelen 23b's bund 25 bagved skærpeaggregatet 5 udgør en glidefla-30 de, hvormed knivbladets æg 26 kan komme i indgreb med det formål, som vil blive beskrevet i det følgende. Om det ønskes, kan overfladen 27 af bæreorganet ^'s fremad ragende del 19 være udformet som en skråflade til samarbejde med et knivhåndtag 28, se fig. 3, som det også vil fremgå nær-35 mere af det følgende.In the illustrated embodiment, the front end portion 19 of the support member h extends beyond the insertion opening 11 of the housing, and the sharpening assembly 5 is disposed on the support member ^ adjacent this opening 11. The sharpening means 5 may, as shown, be capable of performing limited tilting. 15 with respect to the support member and it has a sharpening passage 2 on the nearest V-shaped which, at least during normal operation of the knife sheath, is located lower than the upper surface 22 of the support member b; 9. The sharpening assembly 5 is released relative to the upper surface 22 of the support member k by means of a knife receiving slot 23, fig. 8 extending in the longitudinal direction of the carrier 1+, preferably both in front and behind the sharpening assembly 5. At least part of the side surfaces of the slot 23 act as guide surfaces for counteracting side tilting of a knife blade 7 which is inserted into the housing 2 The slit portion 23a present in the front part of the support member 1a has a bottom 2k. 9, which also serves to guide a knife blade 7 into the sharpening passage 21 at a suitable height, and at least a portion of the bottom 25 of the slit portion 23b behind the sharpening assembly 5 constitutes a sliding surface with which the blade of the knife blade 26 can engage the purpose of which will be described below. If desired, the surface 27 of the forward portion 19 of the support member 19 may be formed as an inclined surface for cooperation with a knife handle 28, see FIG. 3, as will also appear in more detail below.
Skærpeaggregatet 5 kan udformes på mange forskellige måder, f.eks. som beskrevet i australsk patentskrift 1+ U 7.537 eller i australsk patentskrift U2U .122, og det kan være for 145331 8 bundet med bæreorganet, f.eks. på den måde som er beskrevet i australsk patentskrift ^7.537·The sharpening assembly 5 can be designed in many different ways, e.g. as described in Australian Patent Specification 1+ U 7,537 or in Australian Patent U2U .122, and it may be attached to the carrier, e.g. in the manner described in Australian Patent Specification ^ 7,537 ·
Ved den i fig. 8 til 13 viste foretrukne udførelsesform har bæreorganet k en styresektion 29, som er svinge-5 ligt forbundet med bæreorganets hoveddel 31 til bevægelse mellem en virksom stilling og en løfte uvirksom stilling.In the embodiment shown in FIG. 8 to 13, the carrier means k has a control section 29 which is pivotally connected to the body 31 of the carrier for movement between an operative position and a lifting idle position.
I den i fig. 8 og 9 viste virksomme stilling udgør styresektionen 29 en del af bæreorganet U's øverste flade 22 og har en slidsdel 23a, som danner sidestyreflader for et 10 knivblad 7· Det foretrækkes, som vist, at styresektionen 29 i sin virksomme stilling strækker sig såvel fremad som bagud i forhold til skærpeaggregatet 5· Svingforbindelsen 32 mellem bæreorganets hoveddel 31 og styresektionen 29 er fortrinsvis anbragt i nærheden af styresektionen 29's bage-15 ste ende, så at styresektionen, når den er svinget opad, se fig.i3, blotter skærpeaggregatet 5 og en hulhed 33 i bæreorganet it's hoveddel 31, og i hvilken sidste skærpeaggregatet 5 befinder sig. Dette medfører, at skærpeaggregatet 5 i den nævnte uvirksomme stilling er tilgængeligt 20 f.eks. for renseformål, og at spåner fra skærpeoperationen kan fjernes fra hulrummet 33· Udformningen er en sådan, at styre sekt ionen 29 kan bevæges til sin løftede uvirksomme stilling, når bæreorganet i er i sin normale stilling inde i huset 2, men det er sædvanligvis hensigtsmæssigt at fore-25 tag denne løftning, når bæreorganet er fjernet fra huset 2. Passende midler, såsom en hagefjeder, kan anvendes til udløselig fastholdelse af styresektionen 29 i dens virksomme stilling.In the embodiment shown in FIG. 8 and 9, the control section 29 forms part of the upper surface 22 of the supporting member U and has a slot portion 23a which forms side guide surfaces for a knife blade 7 · It is preferred, as shown, that the control section 29 extends in both its forward position and forward. backward with respect to the sharpening assembly 5 · The pivot connection 32 between the body 31 of the support member and the guide section 29 is preferably arranged near the rear end of the guide section 29, so that when the control section is pivoted upwards, see FIG. cavity 33 in the support member it's body 31 and in which the last sharpening assembly 5 is located. This causes the sharpening assembly 5 to be available in said inactive position 20 e.g. for cleaning purposes, and that chips from the sharpening operation can be removed from cavity 33. The configuration is such that the control section 29 can be moved to its raised idle position when the support member is in its normal position inside the housing 2, but it is usually appropriate. to perform this lifting when the carrier is removed from the housing 2. Suitable means, such as a chin spring, can be used for releasably retaining the guide section 29 in its operative position.
Fortrinsvis er skærpeaggregatet 5's vippebevægelse 30 i forhold til styresektionen 29 begrænset ved hjælp af stop 3b og 35 s der er udformede på mindst den ene side af hulrummet 33, og fjederorganer 36 tjener til at presse skærpeorganet 5 mod en midterstilling. I den viste udførelsesform udgøres fjederorganerne 36 af en bladfjeder, der er 35 udformet i et med skærpeaggregatets monteringsblok 37, og hvilken fjeder eller andre tilsvarende fjederorganer er således anbragte, at den frembringer et tryk blot på skærpe- 145331 9 aggregatet 5's ene side. Dette medfører, at trykkets virkelinie er beliggende tilsiden for skærpegennemgangen 21's centerlinie, således at der frembringes en let vridning af skærpeaggregatet 5, der kompenserer for enhver frigang i 5 dets svingforbindelse 38, fig. 6, 9 og 11, således at rusken under skærpningen forhindres.Preferably, the tilting motion 30 of the sharpening assembly 5 relative to the control section 29 is limited by stops 3b and 35s formed on at least one side of the cavity 33, and spring means 36 serve to press the sharpening means 5 toward a center position. In the illustrated embodiment, the spring means 36 are constituted by a leaf spring 35 which is formed in one with the mounting block 37 of the sharpening assembly, and which spring or other corresponding spring means is arranged so as to produce a pressure only on the one side of the sharpening unit 5. This causes the pressure line of action to be located to the side of the center line of the sharpening passage 21, so as to produce a slight twist of the sharpening assembly 5, which compensates for any clearance in its pivotal connection 38, fig. 6, 9 and 11 so that the debris during sharpening is prevented.
Fig. 9 og 11 viser en særlig måde til opnåelse af det sideforskudte eller forsatte tryk på en sådan måde, at dette virker på modsatte sider af skærpegennemgangen 21 ved ^ hver af skærpeaggregatet 5's to grænsestillinger. De to grænsestillinger er dem, ved hvilke skærpeaggregatet 5 er i indgreb med det ene eller det andet af stoppene 3^ og 35. Det forsatte tryk opnås ved hjælp af fremspring 39 og 1+1, der stræker sig indad fra hver sin af hulheden 33's si-15 J devægge 1+2 og 1+3, og som er således anbragte, at hver af dem virker til frembringelse af trykkets drejning, som foran nævnt, mod hver sin af skærpeaggregatet 5's grænsestillinger .FIG. 9 and 11 show a particular way of obtaining the lateral or offset pressure in such a way that it acts on opposite sides of the sharpening passage 21 at each of the two boundary positions of the sharpening assembly 5. The two boundary positions are those in which the sharpening assembly 5 engages one or the other of the stops 3 ^ and 35. The continued pressure is obtained by projections 39 and 1 + 1 extending inwardly from each of the cavity 33 si-15 J deflect 1 + 2 and 1 + 3 and are arranged so that each of them acts to produce the rotation of the pressure, as mentioned above, against each of the boundary positions of the sharpening unit 5.
Af fig. 8 til 12 fremgår, at bæreorganet U på sim- 20 o pel måde kan støbes af et passende plast og samles uden besvær. Særligt skal påpeges, at bæreorganet k's hoveddel 31 består af to hoveddele, der let kan samles omkring skærpeaggregatet 5 og styresektionen 29.In FIG. 8 to 12, it can be seen that the carrier U can be molded in a simple manner from a suitable plastic and assembled without difficulty. In particular, it should be pointed out that the main member 31 of the carrier k consists of two main parts which can be easily assembled around the sharpening assembly 5 and the control section 29.
I den foretrukne viste udførelsesform er reaktions- 2 5 J organet 6 beliggende mellem husets overvæg 9 og bæreorganet 1+' s tilstødende overflade og er svingeligt forbundet med huset 2 til bevægelse om en akse, der strækker sig på det nærmeste parallelt med bæreorganet It's svingakse. Denne svingforbindelse er fortrinsvis beliggende i nærheden af 30 husets overvæg 9 i nogen afstand indad fra indføringsåbningen 11 f.eks. i nærheden af bæreorganet 1+1 s bageste ende. Hvilke som helst passende organer kan anvendese til frembringelse af denne svingforbindelse, men i den viste udførelsesform omfatter den en delvis cylindrisk endedelIn the preferred embodiment shown, the reaction means 6 is located between the upper surface 9 of the housing and the adjacent surface of the support 1+ and is pivotally connected to the housing 2 for movement about an axis extending almost parallel to the supporting means. . This pivot connection is preferably located near the upper wall 9 of the housing at some distance inward from the inlet opening 11, e.g. near the carrier 1 + 1 s rear end. Any suitable means may be used to produce this pivotal connection, but in the embodiment shown, it comprises a partially cylindrical end portion.
O CO C
1+1+ af reaktionsorganet 6, hvilken endedel er i tryklåsindgreb med på linie liggende udtagninger 1+5 i huset 2's sidevægge 8, se fig. 2. Ved denne anbringelse kan reaktionsorganet 6 om nødvendigt let frigøres fra udtagningerne 1+5 og trækkes ud gennem huset 2's forreste ende.1 + 1 + of the reaction member 6, which end portion is in pressure lock engagement with aligned recesses 1 + 5 in the side walls 8 of the housing 2, see fig. 2. In this arrangement, the reaction means 6 can, if necessary, be easily released from the recesses 1 + 5 and pulled out through the front end of the housing 2.
145331 10 I den viste udførelsesform har reaktionsorganet 6 et på det nærmeste som et omvendt. U udformet tværsnit, så at der er dannet en overvæg 46 og to fra denne nedragende sidevægge 4j, se fig. 6 og 7. Overvæggen 46's forreste ende 5 er bestemt til at hvile på eller at være beliggende tæt ved bæreorganets overflade 22, fortrinsvis lige foran skærpeaggregatet 5> når huset eller skeden er i hvilestilling eller lukket stilling, fig. 2, og den kan være udformet med en nedad forløbende læbe 48 til nævnte formål. Reaktions-10 organet 6's overvæg 46 har en forreste reaktionszone beliggende bag ved læben 48, og i den viste udførelsesform udgøres den af en nedad bukket del 49 af væggen 46. Denne zone 49 er fortrinsvis beliggende på det nærmeste direkte over skærpeaggregatet 5, selv om den, om ønsket, også kan 15 være beliggende noget bag ved dette aggregat. Yderligere forefindes en bageste reaktionszone beliggende mellem reaktionsorganets svingforbindelse 44,45 og bæreorganets sving-forbindelse 13,14, og i den viste udførelsesform bestemmes denne reaktionszone af to nedad forløbende fremspring 51 20 på reaktionsorganets overvæg 46, hvilke fremspring 51 kan bringes i indgreb med bæreorganets overflade 22, se fig. 4.In the illustrated embodiment, the reaction means 6 has one nearest to the other. U-shaped cross-section so that an upper wall 46 and two are formed from this projecting side walls 4j, see fig. 6 and 7. The front end 5 of the upper wall 46 is intended to rest on or be located close to the surface 22 of the carrier, preferably directly in front of the sharpening assembly 5 when the housing or sheath is in a resting or closed position; 2, and it may be formed with a downwardly extending lip 48 for said purpose. The upper wall 46 of the reaction member 6 has a forward reaction zone located behind the lip 48, and in the illustrated embodiment it is constituted by a downwardly bent portion 49 of the wall 46. This zone 49 is preferably located almost directly above the sharpening assembly 5, although it, if desired, may also be located somewhat behind this unit. Further, there is a rear reaction zone located between the swivel connection 44,45 of the reaction member and the swivel connector 13,14, and in the illustrated embodiment, this reaction zone is determined by two downwardly extending projections 51 20 on the reaction wall overlap 46, which projections 51 can be engaged with the support member. surface 22, see FIG. 4th
Reaktionsorganet 6's svingforbindelse 44,45 er beliggende bag ved de to reaktionszoner 49 og 51. Sådan en anbringelse medvirker til knivskedens effektive virkning, 25 idet den muliggør opnåelsen af en ønskelig reaktion mellem de virkende kræfter. En yderligere fordel ved svingforbindelsens nævnte anbringelse er, at den muliggør, at reak-tiansorganet 6's forreste ende kan bevæges et. væsentligt stykke mod og bort fra huset 2's bund 10 og derved mulig-30 gøre, at knivskeden kan optage knivblade 7 inden for et-stort bladbreddeområde, Når knivskeden er i sin lukkede stilling, fig. 2 og 4, vil den bageste reaktionszone 51 fortrinsvis være i indgreb med bæreorganets overflade 22 på et sted mellem 35 svingforbindelsen 13,14 og bæreorganet 4's bageste ende, og den forreste reaktionszone vil også være i indgreb med overfladen 22, men foran bæreorganet 4's svingforbindelse 145331 11 13,1¾. Under alle omstændigheder vil der være mindst en indgrebszone mellem reaktionsorganet 6 og bæreorganet 1+, og denne indgrebszone vil fortrinsvis befinde sig ved den bageste reaktionszone 51.Reacting member 44,45 of the swivel member 6, 45 is located behind the two reaction zones 49 and 51. Such an arrangement contributes to the effective action of the knife spoon 25, enabling a desirable reaction to be achieved between the acting forces. A further advantage of said pivot connection is that it allows the front end of the reactor 6 to be moved. substantially away from and away from the bottom 10 of the housing 2, thereby enabling the knife sheath to receive blade blades 7 within a large blade width range. When the knife sheath is in its closed position; 2 and 4, the rear reaction zone 51 will preferably engage the surface 22 of the support member at a location between the pivot joint 13,14 and the rear end of the carrier 4, and the forward reaction zone will also engage the surface 22, but in front of the pivot joint of the carrier 4. 13.13. In any case, there will be at least one engagement zone between the reaction member 6 and the carrier 1+, and this engagement zone will preferably be at the rear reaction zone 51.
5 Også i den lukkede stilling vil reaktionsorganet 6's overvæg 1+6 fortrinsvis danne en fremadgående forlængelse af huset 2's øverste væg 9, selv om den kan skråne nedad fra husvæggen 9's forkant 52, som det fremgår af fig. 2.5 Also in the closed position, the upper wall 1 + 6 of the reaction means 6 will preferably form a forward extension of the upper wall 9 of the housing 2, although it can slope downwards from the leading edge 52 of the housing wall 9, as can be seen in FIG. 2nd
Forkanten 52 af husets overvæg 9 er fortrinsvis beliggen-10 de i nogen afstand bag.ved hussidevæggen 8’s forkant til frembringelse af en åbning 53, fig. 1, gennem hvilken reaktionsorganet 6 kan svinges opad om sin svingningsforbindelse. I en sådan løftet stilling vil reaktionsorganets sidevægge 1+7, der er forskydelige mellem husets sidevægge 8, 15 imidlertid fortrinsvis strække sig nedenunder hussidevæggene 8's øverste kanter, således at der opretholdes et net udseende og på det nærmeste en fuldstændig indkapsling af et knivblad 7.The leading edge 52 of the housing wall 9 is preferably located at some distance behind the leading edge of the housing side wall 8 to produce an opening 53, FIG. 1 through which the reaction means 6 can be pivoted upward about its pivotal connection. However, in such a raised position, the side walls 1 + 7 of the reaction means slidable between the side walls 8, 15 of the housing will preferably extend below the upper edges of the housing side walls 8, so as to maintain a net appearance and, most closely, a complete enclosure of a knife blade 7.
I den viste foretrukne udførelsesform virker tryk-2o organerne direkte på reaktionsorganet 6 og afviger derved overfor tidligere kendte knivskeder af den omhandlede art, i hvilke trykorganerne virker på knivbladet eller på et svingeligt bæreorgan for skærpeaggregatet. Sædvanligvis er det at foretrække, at der som trykorganer anvendes 25 en blad- eller trådfjeder, og at en sådan fjeder anbringes således, at den indvirker på reaktionsorganet 6 foran for svingningsforbindelsen 1+1+,1+51 s akse, så at den svinger dette organs forende nedad mod huset 2's bund 10. Om det ønskes, kan trykorganerne omfatte to adskilte sektioner, der 30 uafhængigt af hinanden indvirker på henholdsvis bæreorganet 1+ og reaktionsorganet 6 og således, at disse to organer normalt holdes i en lukket stilling, som det fremgår af fig. 2. Trykorganerne virker imidlertid fortrinsvis mellem de to organer k og 6, til hvilket formål de kan omfat-35 te en i et stykke udformet på det nærmeste U-formet fjeder 5^, således som vist på tegningen. Om det ønskes, kan der anvendes en sådan fjeder i nærheden af hver af bæreorganet 1+' s sider.In the preferred embodiment shown, the pressure means act directly on the reaction means 6, thereby differing from prior art knife sheaths of the kind in which the pressure means act on the blade or on a pivotal support for the sharpening unit. Usually, it is preferable that a leaf or wire spring be used as pressure means and that such a spring be positioned to act on the reaction means 6 in front of the axis of vibration 1 + 1 +, 1 + 51 s axis so that it oscillates. the front end of said member downwardly toward the bottom 10 of the housing 2 If desired, the pressure means may comprise two separate sections which act independently on the support means 1+ and the reaction means 6 respectively, and so that these two members are normally held in a closed position which it can be seen from FIG. 2. However, the pressure means preferably operate between the two means k and 6, for which purpose they may comprise a one-piece formed on the nearest U-shaped spring 5, as shown in the drawing. If desired, such a spring can be used in the vicinity of each side of the carrier 1+.
U5331 12U5331 12
Den særlige viste trykfjeder 5^ har to ben 55 og 56, som er indbyrdes forbundne gennem en krum bugt 57, der, som det fremgår af tegningen, i fjederen 5^'s arbejdsstilling er beliggende i husets kanal 3 bag ved såvel bæreorganet ^ 5 som reaktionsorganet 6 med de to ben 55 og 5b strækkende sig fremad i kanalen 3's retning. Benet- 55' s forreste endedele 58 er i indgreb med bæreorganet U fortrinsvis direkte under skærpeaggregatet 5, medens benet 56's forreste endedel 59 er i indgreb med reaktionsorganet 6, også fortrins-.10 vis i. nærheden af skærpeaggregatet 5 og/eller i nærheden af reaktionszonen ^9· Sådan en trykfjeder er således anbragt , at den udøver nærmest en sakse-virkning mellem reaktionsorganet 6 og bæreorganet så at det førstnævnte presses nedad om sin svingningsforbindelse UU,U5, medens 15 den sidstnævnte presses opad om sin svingningsforbindelse 13,1U.The specially illustrated compression spring 5 ^ has two legs 55 and 56, which are interconnected through a curved bay 57, which, as will be seen in the drawing, in the working position of the spring 5 ^ is located in the channel 3 of the housing behind both the carrier means 5 as the reaction means 6 with the two legs 55 and 5b extending forward in the direction of the channel 3. The front end 58 of the leg 55 engages with the carrier U preferably directly below the sharpening assembly 5, while the front end 59 of the leg 56 engages the reaction member 6, also preferably in the vicinity of the sharpening assembly 5 and / or in the vicinity. such a compression spring is arranged to exert almost a scissor action between the reaction member 6 and the support member so that the former is pressed downward about its pivotal connection UU, U5, while the latter is pressed upward about its pivotal connection 13,1U .
Det er at foretrække, at huset 2 er således anbragt, at et knivblad 7 kan indsættes i kanalen til en sådan dybde, at dets hæl 61 er beliggende bag ved skærpeaggregatet 20 5, se fig. 5, således at det bliver muligt at skærpe på det nærmeste hele længden af knivbladets æg 2β. I denne fuldt indstukne stilling vil en del 62 af knivhåndtaget 28 hvile på bæreorganet ^'s skråflade 27, så at bladet holdes i en passende højde til at blive trukket bagud hen 25 over skærpeaggregatet 5· Skråfladen 27 er fortrinsvis hældende som vist, så at der under den sidste del af et knivblad 7's indsætning i huset 2 opnås en progressiv løftning af bladet 7 til muliggørelse af skærpning af en krum bladhæl 61.It is preferred that the housing 2 is arranged such that a knife blade 7 can be inserted into the channel to such a depth that its heel 61 is located behind the sharpening unit 20 5, see fig. 5, so that it is possible to sharpen at the nearest full length of the blade blade egg 2β. In this fully positioned position, a portion 62 of the knife handle 28 will rest on the bevel surface 27 of the support member so that the blade is held at an appropriate height to be pulled backwardly 25 over the sharpening assembly 5. The bevel surface 27 is preferably inclined as shown, so that during the latter part of the insertion of a knife blade 7 into the housing 2 a progressive lifting of the blade 7 is obtained to enable sharpening of a curved blade heel 61.
30 Når et knivblad 7 indsættes i den beskrevne skede, vil fortrinsvis dens øverste kant 63 komme i indgreb med reaktionsorganet 6's læbe U8 på det nærmeste samtidigt med, at dets æg 26 kommer i indgreb med skærpeaggregatet 5, således som det skematisk er vist i fig. 1^. I dette trin 35 vil fjederkraften S modsætte sig, at organerne U og 6 skilles fra hinanden, og organet k fastholdes i ligevægt om svingforbindelsen 13 af reaktionskræfterne og Rg ved indgrebszonerne mellem organerne k og 6.Preferably, when a knife blade 7 is inserted into the described sheath, its upper edge 63 engages the lip U8 of the reaction member 6 at the same time as its egg 26 engages the sharpening assembly 5, as schematically shown in FIG. . 1 ^. In this step 35, the spring force S will oppose that the members U and 6 are separated and the body k is maintained in equilibrium about the pivotal connection 13 of the reaction forces and Rg at the engagement zones between the means k and 6.
13 14533 1 Når bladet 7 bevæges længere ind i huset 2, vil bære-organet 4's forreste ende blive bragt til at· svinge nedad om svingforbindelsen 13, som følge af det tryk der udøves på skærpeaggregatet 5, og bladets øverste kant 63 vil kom-5 me i indgreb med reaktionsorganet 6's forreste reaktionszone k9, se fig. 15· På dette tidspunkt bringes reaktions-organet 6's forende til at svinge opad om dets svingforbindelse kk, som følge af indgrebet mellem zonen 1+9 og bladets øverste kant 63. Reaktionsorganet 6fs bageste reaktions-10 zone 51 er stadig i indgreb med bæreorganet U, og holder som følge heraf dette i en passende stilling i forhold til knivbladet 7«As the blade 7 moves further into the housing 2, the front end of the carrier 4 will be caused to pivot downward about the pivot joint 13, due to the pressure exerted on the sharpening assembly 5, and the upper edge 63 of the blade will 5 m in engagement with the reaction zone k9 of the reaction member 6, see fig. · At this point, the front end of the reactor 6 is pivoted upward about its pivotal connection kk, as a result of the engagement of zone 1 + 9 with the top edge of the blade 63. Reactor 6fs rear reaction zone 51 is still engaged with carrier U and, as a result, holds this in a suitable position relative to the blade 7 "
Ved den viste særlige udførelsesform for opfindelsen vil en fortsat bevægelse af knivbladet 7 ind i huset 2 med-15 føre, at bladets æg 26 kommer i indgreb med glidefladen 25 bag ved skærpeaggregatet 5, så at bladet 7 derpå er i indgreb med bæreorganet U på to steder beliggende på hver sin side af bæreorganets svingforbindelse 13, se fig. 16. På eller på det nærmeste på dette tidspunkt vil reaktionsorga-20 net 6's bageste reaktionszone 51 blive løftet fri af bæreorganet 1+ og knivbladet 7, så at skærpeaggregatet 5 kan virke til frembringelse af en på det nærmeste konstant skærevinkel på bladet 7's æg. Det kan imidlertid forekomme, at bæreorganet k og reaktionszonen 51 forbliver i indbyrdes 25 indgreb under hele skærpeoperationen.In the particular embodiment of the invention shown, a continued movement of the knife blade 7 into the housing 2 will cause the blade's eggs 26 to engage with the sliding surface 25 behind the sharpening assembly 5, so that the blade 7 then engages with the carrier U on two locations located on either side of the carrier member pivotal connection 13, see FIG. 16. At or near at this point, the rear reaction zone 51 of the reaction member 6 will be lifted free of the carrier 1+ and the blade 7 so that the sharpening assembly 5 can act to produce an almost constant cutting angle on the blade 7's egg. However, it may occur that the carrier k and the reaction zone 51 remain in engagement with each other throughout the sharpening operation.
Når den i fig. 16 viste stilling er nået, vil reaktionskræfterne være sådanne, at bæreorganet k og knivbladet 7 fastholder deres indbyrdes stilling uanset bladet 7's beliggenhed i forhold til huset 2. Reaktionskraften R^ fore- 30 kommer ikke længere som følge af, at zonen 51 er blevet skilt fra bæreorganet 1+, men reaktionskraften R^ mellem bladet 7 og bæreorganet stabiliserer dette ved afbalancering af reaktionskraften R^ på den modsatte side af svingforbindelsen 13. Antages det således, at knivbladet 7 fast-35 holdes i en særlig indsætningsstilling, og knivhåndtaget 28 bevæges opad eller nedad i forhold til huset 2, vil de relative stillinger mellem reaktionsorganet 6, bæreorganet h 145331 1¾ og knivbladet 7 vedligeholdes inden for bevægelsesgrænserne for de førstnævnte to organer 6 og 4.When in FIG. 16, the reaction forces will be such that the carrier k and the knife blade 7 maintain their mutual position irrespective of the position of the blade 7 relative to the housing 2. Reaction force R ^ no longer occurs as a result of zone 51 being separated from the carrier 1+, but the reaction force R ^ between the blade 7 and the carrier stabilizes this by balancing the reaction force R ^ on the opposite side of the pivot joint 13. Assuming that the blade 7 is held in a special insert position and the knife handle 28 is moved up or down relative to the housing 2, the relative positions between the reaction means 6, the carrier h 145331 1¾ and the knife blade 7 will be maintained within the limits of movement of the first two means 6 and 4.
Dette medfører, at de relative stillinger mellem bæreorganet k og knivbladet 7 styres på en sådan måde, at skær-5 peaggregatet 5 kan virke til frembringelse af en på det nærmeste konstant skærevinkel på bladæggen. Enhver ændring i disse relative stillinger, således som de naturligt vil forekomme som følge af ændringen af bladet 7's form, efterhånden som det skydes længere ind i huset 2, vil være sådanne, 10 at de på det nærmeste kompenserer for denne formændring, således at skærevinklen holdes på det nærmeste konstant.This causes the relative positions between the support member k and the knife blade 7 to be controlled in such a way that the cutting unit 5 can act to produce an almost constant cutting angle on the blade wall. Any change in these relative positions, as they will naturally occur as a result of the change in the shape of the blade 7 as it is pushed further into the housing 2, will be such as to compensate closely for this change of shape so that the cutting angle kept at near constant.
Figurerne 17 og 18 viser knivbladet 7 under progressiv yderligere indføring i huset 2. Linien CR^ i fig. 16 til 18 angiver retningen af den kraft, der frembringes mel-15 lem bladet 7 og skærpeaggregatet 5's skærpeorganer under bladet 7's indadgående bevægelse. Det vil ses, at vinkelforholdet mellem denne linie og bladet 7's længdeakse ikke ændrer sig væsentligt, hvorfor der kun vil forekommer små variationer i skærpemodstanden under hele operationen. Li-20 nien CR^ i fig. 18 angiver retningen for den af skærpeorganerne udøvede modstandskraft under bladet 7's udtrækning fra huset 2, og vinkelforholdet mellem linien CR^ og bladets længdeakse er på det nærmeste det samme, som vinkelforholdet mellem linien CR^ og knivbladets længdeakse.Figures 17 and 18 show the knife blade 7 during progressive further insertion into housing 2. The line CR ^ in FIG. 16 to 18 indicate the direction of the force produced between the blade 7 and the sharpening means 5 of the sharpening assembly 5 during the inward movement of the blade 7. It will be seen that the angular relationship between this line and the longitudinal axis of the blade 7 does not change significantly, which is why only small variations in the sharpening resistance will occur throughout the operation. The Li-CR 9 in FIG. 18 indicates the direction of the resistance exerted by the sharpening means during the extraction of the blade 7 from the housing 2, and the angular relationship between the line CR 2 and the longitudinal axis of the blade is almost the same as the angular relationship between the line CR 2 and the longitudinal axis of the knife blade.
25 Af det foregående fremgår, at der under bladet 7's bevægelse ind og ud af huset 2 opretholdes det rette stillingsforhold mellem knivbladet 7 og skærpeaggregatet 5-Dette skyldes det topunktsindgreb med bæreorganet b, som frembringes under i det mindste en del af bevægelsen som 30 følge af knivbladet 7's indgreb med reaktionsorganet 6 i adskilte zoner. I den særligt beskrevne udførelsesform vil under en del af knivbladets bevægelse det nævnte stillingsforhold blive opnået som følge af bæreorganet H's indgreb med to adskilte zoner af bladet 7- Det er også betydnings-35 fuldt, at de to indgrebszoner med bæreorganet ^ er beliggende på modsatte sider af bæreorganets svingforbindelse 13, så at bladet 7 og bæreorganet U vipper om svingforbindelsen 13, uden at det ønskede stillingsforhold går tabt, 145331 15 selv om knivhåndtaget 28 skulle blive bevæget op og ned i forhold til huset 2. Reaktionsorganet 6 vil naturligvis følge enhver sådan bevægelse af bæreorganet 1» og bladet 7 som følge af dets svingforbindelser kk og U5 og forspænding.25 It is apparent from the foregoing that during the movement of the blade 7 in and out of the housing 2 the correct positioning relationship between the blade blade 7 and the sharpening unit 5 is maintained. This is due to the two-point engagement with the support member b, which is produced during at least part of the movement as a result of of the blade blade 7's engagement with the reaction means 6 in separate zones. In the particularly described embodiment, during part of the blade blade movement, said positioning will be achieved as a result of the engagement of the support member H with two separate zones of the blade 7- It is also important that the two engagement zones with the support member are located opposite sides of the carrier member pivot connection 13 so that the blade 7 and the carrier U tilt the pivot connection 13 without losing the desired position, although the knife handle 28 should be moved up and down relative to the housing 2. The reaction means 6 will naturally follow any such movement of the carrier 1 'and the blade 7 as a result of its pivotal connections kk and U5 and bias.
5 Når knivbladet 7 trækkes ud af huset 2, vil opretholdes samme styring af stillingsforholdet mellem bladet 7 og skærpeaggregatet 5·5 When the blade 7 is pulled out of the housing 2, the same control of the positioning relationship between the blade 7 and the sharpening unit 5 will be maintained.
En knivskede af den beskrevne art medfører adskillige fordele sammenlignet med tidligere kendte skede-skær-10 per-kombinationer. Således giver den f.eks. mulighed for at opretholde en på det nærmeste konstant skærevinkel på knivbladet, således som det fremgår af det foran anførte.A knife sheath of the type described has several advantages compared to previously known sheath-cutter-10 per combinations. Thus, it provides e.g. the possibility of maintaining one at the nearest constant cutting angle on the blade, as shown in the foregoing.
I den særligt foretrukne beskrevne udførelsesform, ved hvilken bæreorganet og reaktionsorganet er forspændte ved 15 hjælp af den samme fjeder, bliver den nævnte virkning særlig udtalt som følge af den resulterende skærpemekanismes dynamiske natur. Det vil sige, at denne mekanisme, der omfatter bæreorganet, reaktionsorganet og forspændingsfjederen, er i stand til at bevæge sig i forhold til huset, uden 20 at der indvirkes på forspændingskraften, der udgøres af det tryk, der udøves mellem knivbladet og skærpeaggregatet, og uden at der influeres på den relative stilling mellem bladet og skærpeaggregatet.In the particularly preferred embodiment, in which the carrier and the reaction means are biased by the same spring, the said effect is particularly pronounced due to the dynamic nature of the resulting sharpening mechanism. That is, this mechanism comprising the carrier, the reaction means and the bias spring is able to move with respect to the housing without affecting the biasing force exerted by the pressure exerted between the knife blade and the sharpening assembly and without affecting the relative position between the blade and the sharpening unit.
En yderligere fordel skyldes det bagud beliggende 25 indgreb mellem reaktionsorganet og bæreorganet under begyndelsen af knivbladets indsætning. Beliggenheden af dette indgreb giver en passende udligning mellem den kraft, der virker mellem bladet og skærpeaggregatet, og den kraft, hvormed knivhåndtaget påvirkes af brugeren, og denne belig-30 genhed vil sædvanligvis i nogen grad være afhængig af profilen af det knivblad, der skal skærpes. Under alle omstændigheder vil denne kraft imidlertid indvirke mellem svingforbindelserne for bæreorganet og reaktionsorganet og bag ud for den førstnævnte.A further advantage is due to the backward engagement between the reaction means and the carrier during the beginning of insertion of the blade. The location of this engagement provides an appropriate equalization between the force acting between the blade and the sharpening assembly and the force with which the knife handle is actuated by the user, and this location will usually depend to some extent on the profile of the blade to be strengthened. In any case, however, this force will act between the pivotal connections of the carrier and the reactor and backward of the former.
35 En endnu yderligere fordel opstår som følge af to punkt s indgrebet mellem knivbladet og bæreorganet. Når knivbladet kommer i indgreb med glidefladen, der kan udgøres af en indsats af passende materiale, som er fastgjort· til 145331 16 bæreorganet, eller kan udgøre en integrerende del af bæreorganet, vil det også være i indgreb med skærpeaggregatet, og dette medfører en reduktion af den kraft·, hvormed dette påvirkes. I praksis kan denne reduktion andrage så 5 meget som 50 %. Det har vist sig, at belastningen på skærpeaggregatet sjældent er konstant som følge af svingninger i det tryk, der udøves af anvenderen, og den effektive reduktion i belastningen som følge af det nævnte arrangement, gør det muligt i større grad at styre skærpe-10 operationen.An even further advantage arises as a result of two point s engagement between the blade and the carrier. When the knife blade engages with the sliding surface, which may be an insert of suitable material attached · to the support member, or may form an integral part of the support member, it will also engage the sharpening assembly and this will result in a reduction. of the force by which this is affected. In practice, this reduction can amount to as much as 50%. It has been found that the load on the sharpening unit is rarely constant due to fluctuations in the pressure exerted by the user, and the effective reduction in the load due to said arrangement makes it possible to control the sharpening operation to a greater extent. .
Endnu en fordel skyldes den indføringsstyring, der frembringes af bladindføringsslidsens bund ved skærpeaggregatets forside, idet denne styring letter knivbladets indføring i skeden. Yderligere muliggør skråfladeind-15 grebet med knivhåndtaget, at skærpningsvirkningen kan fortsætte forbi bladhælen samtidig med, at det forhindres, at knivhåndtaget falder nedad ved afslutningen af den indadgående skærpningsoperation. Som følge heraf vil knivbladets udtrækning fra skeden ikke modvirkes, og den udad-20 gående skærpningsoperation kan gennemføres på hensigtsmæssig .og simpel måde.Yet another advantage is due to the insertion guide provided by the base of the blade insertion slot at the front of the sharpening assembly, as this guide facilitates the insertion of the blade into the sheath. Further, the bevel surface engagement with the knife handle allows the sharpening action to continue past the blade heel while preventing the knife handle from falling downward at the end of the inward sharpening operation. As a result, the blade blade extraction from the sheath will not be discouraged, and the outward sharpening operation can be carried out in an appropriate and simple manner.
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPC417975 | 1975-12-04 | ||
| AUPC417975 | 1975-12-04 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK541476A DK541476A (en) | 1977-06-05 |
| DK145331B true DK145331B (en) | 1982-11-01 |
| DK145331C DK145331C (en) | 1983-03-21 |
Family
ID=3766453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK541476A DK145331C (en) | 1975-12-04 | 1976-12-02 | KNIFE SHEATH |
Country Status (29)
| Country | Link |
|---|---|
| JP (1) | JPS6026665B2 (en) |
| AR (1) | AR211943A1 (en) |
| BE (1) | BE849015A (en) |
| BG (1) | BG29128A3 (en) |
| BR (1) | BR7608048A (en) |
| CA (1) | CA1046774A (en) |
| CH (1) | CH615613A5 (en) |
| DD (1) | DD129144A5 (en) |
| DE (1) | DE2653830C2 (en) |
| DK (1) | DK145331C (en) |
| ES (1) | ES454224A1 (en) |
| FI (1) | FI58271C (en) |
| FR (1) | FR2333614A1 (en) |
| GB (1) | GB1532548A (en) |
| GR (1) | GR61785B (en) |
| HK (1) | HK47479A (en) |
| HU (1) | HU177925B (en) |
| IE (1) | IE44235B1 (en) |
| IN (1) | IN145641B (en) |
| IT (1) | IT1072127B (en) |
| LU (1) | LU76322A1 (en) |
| NL (1) | NL183708C (en) |
| NZ (1) | NZ182686A (en) |
| PH (1) | PH15479A (en) |
| PL (1) | PL108751B1 (en) |
| RO (1) | RO85077B (en) |
| SE (1) | SE417582B (en) |
| SU (1) | SU751315A3 (en) |
| ZA (1) | ZA767052B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2111415B (en) * | 1981-11-26 | 1985-07-03 | Wilkinson Sword Ltd | Knife sharpeners |
| NZ206318A (en) * | 1982-11-24 | 1986-11-12 | Wiltshire Consolidated | Knife scabbard with integral sharpener |
| FR2576537B1 (en) * | 1985-01-30 | 1988-12-02 | Seb Sa | SHARPENING SLEEVE AND ITS COMBINATION WITH A KNIFE |
| AUPP749198A0 (en) * | 1998-12-04 | 1998-12-24 | Mcpherson's Limited | Blade sharpener |
| US10381226B2 (en) | 2016-07-27 | 2019-08-13 | Asm Ip Holding B.V. | Method of processing substrate |
| FR3109111B1 (en) * | 2020-04-14 | 2023-03-03 | Seb Sa | SHARPENER SHEATH ADAPTED TO RECEIVE A KNIFE AND COMBINATION OF SUCH A SHEATH AND A KNIFE |
| FR3109110B1 (en) * | 2020-04-14 | 2022-04-29 | Seb Sa | SHARPENER SHEATH ADAPTED TO RECEIVE A KNIFE AND COMBINATION OF SUCH A SHEATH AND A KNIFE |
| FR3109112B1 (en) * | 2020-04-14 | 2022-05-06 | Seb Sa | COMBINATION OF A SHEATH AND A KNIFE |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1023945A (en) * | 1973-03-26 | 1978-01-10 | Wiltshire Cutlery Company Proprietary Limited | Blade sharpening device |
| AU462886B2 (en) * | 1973-03-26 | 1975-07-10 | Wiltshire Cutlery Co. Pty. Ltd. | Sharpening device |
| IT1078633B (en) * | 1975-08-22 | 1985-05-08 | Wiltshire Cutlery Co Pty | KNIFE BLADE SHARPENER |
-
1976
- 1976-11-13 HU HU76WI276A patent/HU177925B/en unknown
- 1976-11-22 NZ NZ182686A patent/NZ182686A/en unknown
- 1976-11-24 ZA ZA767052A patent/ZA767052B/en unknown
- 1976-11-26 DE DE2653830A patent/DE2653830C2/en not_active Expired
- 1976-11-30 FI FI763441A patent/FI58271C/en not_active IP Right Cessation
- 1976-12-01 BR BR7608048A patent/BR7608048A/en unknown
- 1976-12-01 PH PH19183A patent/PH15479A/en unknown
- 1976-12-02 CH CH1520276A patent/CH615613A5/en not_active IP Right Cessation
- 1976-12-02 PL PL1976194111A patent/PL108751B1/en unknown
- 1976-12-02 FR FR7636354A patent/FR2333614A1/en active Granted
- 1976-12-02 DK DK541476A patent/DK145331C/en not_active IP Right Cessation
- 1976-12-02 BE BE172931A patent/BE849015A/en not_active IP Right Cessation
- 1976-12-03 NL NLAANVRAGE7613517,A patent/NL183708C/en not_active IP Right Cessation
- 1976-12-03 CA CA267,092A patent/CA1046774A/en not_active Expired
- 1976-12-03 LU LU76322A patent/LU76322A1/xx unknown
- 1976-12-03 SE SE7613623A patent/SE417582B/en not_active IP Right Cessation
- 1976-12-03 IT IT69893/76A patent/IT1072127B/en active
- 1976-12-03 DD DD7600196106A patent/DD129144A5/en unknown
- 1976-12-03 RO RO88624A patent/RO85077B/en unknown
- 1976-12-03 ES ES454224A patent/ES454224A1/en not_active Expired
- 1976-12-03 SU SU762427096A patent/SU751315A3/en active
- 1976-12-03 GR GR52309A patent/GR61785B/en unknown
- 1976-12-03 GB GB50525/76A patent/GB1532548A/en not_active Expired
- 1976-12-03 IE IE2651/76A patent/IE44235B1/en unknown
- 1976-12-03 BG BG7634827A patent/BG29128A3/en unknown
- 1976-12-04 IN IN2163/CAL/76A patent/IN145641B/en unknown
- 1976-12-04 JP JP51146058A patent/JPS6026665B2/en not_active Expired
- 1976-12-06 AR AR265731A patent/AR211943A1/en active
-
1979
- 1979-07-12 HK HK474/79A patent/HK47479A/en unknown
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| PUP | Patent expired |