NO174231B

NO174231B - Safety net for silos

Info

Publication number: NO174231B
Application number: NO920744A
Authority: NO
Inventors: Nd Magne Gl
Original assignee: Nd Magne Gl
Priority date: 1992-02-25
Filing date: 1992-02-25
Publication date: 1993-12-27
Also published as: SE9300483D0; FI930818A0; SE9300483L; NO920744D0; NO174231C; NO920744L; FI930818A

Description

Denne oppfinnelse vedrører et sikkerhetsnett for silo og beregnet for plassering på et nivå inne i siloen som befinner seg mellom nedre dørkarm og silobunnen. This invention relates to a safety net for a silo and intended for placement at a level inside the silo which is located between the lower door frame and the silo bottom.

Siloer med dørene stående åpne representerer en betydelig sikkerhetsrisiko ettersom avstanden mellom nedre dørkarm og silobunnen er betydelig henført .til et fritt fall fra dør-åpningen . Silos with the doors standing open represent a significant safety risk as the distance between the lower door frame and the bottom of the silo is significantly attributable to a free fall from the door opening.

Ifølge den foreliggende oppfinnelse har man derfor tatt sikte på å skaffe tilveie et sikkerhetsnett for plassering nedenfor nedre dørkarm og som i én ytterposisjon dekker hele åpningstversnittet, mens det i en annen ytterposisjon er snurpet slik sammen at det ikke i vesentlig grad hemmer til-førsel av silofor henholdsvis uttak av silofor. According to the present invention, the aim has therefore been to provide a safety net for placement below the lower door frame and which in one outer position covers the entire opening cross-section, while in another outer position it is snarled together in such a way that it does not significantly inhibit the supply of silo forage or withdrawal of silo forage.

Nevnte formål er ifølge oppfinnelsen realisert ved at sikkerhetsnettet er utformet, anordnet og innrettet slik som angitt i etterfølgende patentkrav. Said purpose is, according to the invention, realized by the safety net being designed, arranged and arranged as stated in subsequent patent claims.

Et eksempel på én mulig utførelsesform av sikkerhetsnettet ifølge oppfinnelsen forklares nærmere i det etterfølgende under henvisning til medfølgende tegninger, hvor: Fig. 1-3 viser planriss ovenfra av et sikkerhetsnett med An example of one possible embodiment of the safety net according to the invention is explained in more detail below with reference to the accompanying drawings, where: Fig. 1-3 shows a plan view from above of a safety net with

styreanordning montert i en silo, idet control device mounted in a silo, ie

Fig. 1 viser sikkerhetsnettet i én første mellomstilling hvor det dekker det meste av siloens åpningstversnitt; Fig. 2 viser sikkerhetsnettet i en andre mellomstilling hvor det dekker noe mindre av siloens åpningstversnitt enn i tilfelle ifølge fig. 1; Fig. 3 viser sikkerhetsnettet i fullstendig sammensnurpet tilstand hvor hele siloåpningstversnittet er blottlagt; og Fig. 1 shows the safety net in a first intermediate position where it covers most of the opening cross-section of the silo; Fig. 2 shows the safety net in a second intermediate position where it covers somewhat less of the silo's opening cross-section than in the case according to fig. 1; Fig. 3 shows the safety net in a completely shrunk state where the entire silo opening cross-section is exposed; and

Fig. 4 viser et vertikalsnitt etter linjen IV-IV i fig. 1, Fig. 4 shows a vertical section along the line IV-IV in fig. 1,

i større målestokk, og hvor sikkerhetsnettets styreskinne er illustrert i en posisjon hvor den overlapper seg selv i omkretsretningen over en relativt kort strekning. on a larger scale, and where the safety net's guide rail is illustrated in a position where it overlaps itself in the circumferential direction over a relatively short distance.

Det henvises til tegningene hvor henvisningstallet 1 beteg-nér en silovegg. Reference is made to the drawings where the reference number 1 denotes a silo wall.

Langs siloveggens 1 innside er det ifølge oppfinnelsen fastgjort en styreskinne 2 som strekker seg i det vesentlige i siloveggens 1 omkretsretning, men som kan overlappe seg selv et kort stykke i omkretsretningen. Denne overlappingsstrek-ning kan eksempelvis utgjør ca. 30 grader, og er på tegningene antydet ved avslutningen 2' for det underliggende skinneparti 2", jfr. fig. 4, idet begynnelsen for det underliggende skinneparti 2'<11> befinner seg omtrent ved et silofast styreorgan i form av en ring eller lignende 3. 3' betegner et lignende stasjonært, for eksempel ringformet styreorgan. Along the inside of the silo wall 1, according to the invention, a guide rail 2 is fixed which extends essentially in the circumferential direction of the silo wall 1, but which can overlap itself for a short distance in the circumferential direction. This overlapping section can, for example, amount to approx. 30 degrees, and is indicated in the drawings by the end 2' of the underlying rail section 2", cf. Fig. 4, the beginning of the underlying rail section 2'<11> being approximately at a silo-fixed control member in the form of a ring or the like 3. 3' denotes a similar stationary, for example ring-shaped control member.

Selve sikkerhetsnettet 4 er dimensjonert for å kunne dekke hele siloåpningstversnittet. Nettets omkretskant er betegnet med 4<1> . The safety net 4 itself is dimensioned to be able to cover the entire silo opening cross-section. The perimeter edge of the net is denoted by 4<1> .

I hovedsak jevnt fordelt langs nettets 4 omkretskant 4' Essentially evenly distributed along the net's 4 circumferential edge 4'

er fast anordnet styreorganer, generelt betegnet med 5, som er utformet til å kunne samvirke forskyvbart med styreskinnen 2 . are fixedly arranged control members, generally denoted by 5, which are designed to be able to interact displaceably with the guide rail 2.

Hvert styreorgan 5 omfatter derved et feste 5' for befes-tigelse til nettets omkretskant 4' og forankret til en hol-derdel 5" som er fortrinnsvis dreibart forbundet med et rulle- eller glideorgan 5'<11> som griper glidbart/forskyvbart inn i styreskinnen 2. Each control member 5 thereby comprises an attachment 5' for attachment to the circumferential edge of the net 4' and anchored to a holder part 5" which is preferably rotatably connected to a rolling or sliding member 5'<11> which grips slidably/displaceably into guide rail 2.

For effektiv styring av styreorganenes glide- eller rulle-organ 5<11>' er styreskinnen 2 utformet som liggende U-profil med motstående, korte flenser 2 for å hindre avsporing. For effective control of the guide members' sliding or rolling member 5<11>', the guide rail 2 is designed as a horizontal U-profile with opposite, short flanges 2 to prevent derailment.

I tillegg til festet 5' er styreorganene 5, eller de fleste av dem, utformet med et gjennomgående styrehull 5"". In addition to the attachment 5', the control members 5, or most of them, are designed with a continuous control hole 5"".

Gjennom de fleste styreorganers 5 styrehull 5"" er tredd Through most steering bodies' 5 steering hole 5"" is threaded

eri manøverline 6 som ved 6' er festet til ett 5a av styreorganene 5. For øvrig strekker manøverlinen 6 seg rundt hele sikkerhetsnettets 4 omkrets. eri maneuver line 6 which at 6' is attached to one 5a of the control members 5. Otherwise, the maneuver line 6 extends around the entire circumference of the safety net 4.

Manøverlinen 6 kan trekkes inn henholdsvis slippes ut ved The maneuver line 6 can be retracted or let out by

å betjene endepartiene 6",6' 11 for hånd, men det er mer hen-siktsmessig å benytte en ikke nærmere vist motor 7 med linetrommel for innhaling/utslipping. Det er enkelt å innrette en slik motordrift, idet den linelengde som hales inn ved den ene ende, for eksempel 6", ihvertfall tilnærmet må slippes ut ved den annen lineende 6''<1> . to operate the end parts 6", 6' 11 by hand, but it is more expedient to use a motor 7, not shown in detail, with a line drum for hauling in/discharging. It is easy to arrange such a motor drive, as the length of line that is hauled in by one end, for example 6", at least approximately must be released at the other line end 6''<1> .

Når manøverlinen 6 fra den i fig. 1 viste posisjon trekkes inn ved lineenden 6", forflyttes styreorganet 5a som linen 6 er festet til ved 6', i retning mot urviserne og tar med seg (i bevegelsesretningen) foranliggende styreorganer 5, hvor-ved nettet 4 begynner å snurpes sammen, jfr. fig. 2. When the maneuver line 6 from the one in fig. 1, the position shown is pulled in at the line end 6", the control member 5a to which the line 6 is attached at 6' is moved in a counter-clockwise direction and takes with it (in the direction of movement) the front control members 5, at which point the net 4 begins to be snarled together, cf. Fig. 2.

Dersom nå innhalingen av manøverlinen 6 fortsettes slik, hvorunder det spesielle styre- og lineforankringsorganet 5a tar med seg foranliggende styreorganer 5 ved sin bevegelse mot urviserne, vil man komme til en mellomposisjon hvor omtrent halvparten av siloåpningen er blottlagt. If now the pulling in of the maneuvering line 6 is continued in this way, during which the special steering and line anchoring member 5a takes with it the leading steering members 5 in its counter-clockwise movement, you will reach an intermediate position where approximately half of the silo opening is exposed.

Dersom det for en slik mellomposisjon ikke er truffet spesielle tiltak for å kunne føre styre- og lineforankringsorganet 5a tilbake ved forflytting med urviserne, vil det ikke være mulig å bringe sikringsnettet 4 tilbake i sikkerhets-stillingen hvor det dekker hele siloåpningstversnittet. If, for such an intermediate position, special measures have not been taken to be able to bring the steering and line anchoring member 5a back by moving clockwise, it will not be possible to bring the safety net 4 back into the safety position where it covers the entire silo opening cross-section.

Ifølge oppfinnelsen er derfor styre- og lineforankringsorganet 5a forbundet med en fordelingsline 8 for ytterligere styreorganer 9, som imidlertid ikke er forbundet med selve nettet 4, men som av form og opplagring svarer til de primære styreorganer 5. De ytterligere styreorganer 9 har likeledes styrehull for manøverlinen 6. According to the invention, the control and line anchoring member 5a is therefore connected to a distribution line 8 for further control members 9, which, however, are not connected to the net itself 4, but which in terms of shape and bearing correspond to the primary control members 5. The further control members 9 likewise have control holes for maneuver line 6.

De ytterligere styreorganer 9 er festet til fordelingslinen 8 med ens mellomrom. Det fremgår av tegningsfigurene at fordelingslinens 8 lengde mellom tilstøtende ytterligere styreorganer 9 noe overstiger avstanden mellom tilstøtende styreorganer 5 festet til nettkanten. The additional control members 9 are attached to the distribution line 8 at equal intervals. It appears from the drawings that the length of the distribution line 8 between adjacent additional control members 9 somewhat exceeds the distance between adjacent control members 5 attached to the net edge.

Fordelingslinen 8 for nevnte ytterligere styreorganer 9 har en samlet lengde som omtrent svarer til siloåpningens omkrets, slik at den ved helt sammensnurpet sikkerhetsnett 4, fig. 3, kan strekke seg over tilnærmet hele siloåpnings-omkretsen for jevn fordeling av nevnte ytterligere styreorganer 9 over nevnte omkrets. The distribution line 8 for said additional control means 9 has a total length which roughly corresponds to the circumference of the silo opening, so that when the safety net 4 is completely shrunk, fig. 3, can extend over almost the entire silo opening circumference for even distribution of said additional control means 9 over said circumference.

I en beredskapsstilling, fig. 1, befinner fordelingslinen 8 med de ekstra styreorganer 9 seg i en sammenfoldet tilstand, idet foreløpig kun ett ekstra styreorgan 9 er trukket ut. Fig. 2 viser en mellomposisjon hvor sikkerhetsnettet 4 er i ferd med å bli ført til sikkerhetsstilling. In a standby position, fig. 1, the distribution line 8 with the additional control members 9 is in a folded state, as for the time being only one additional control member 9 has been pulled out. Fig. 2 shows an intermediate position where the safety net 4 is in the process of being moved to the safety position.

Derved hales manøverlinen 6 inn ved enden 6'<1>', og det kom-binerte styre- og lineforankringsorgan 5a blir derved trukket langs siloåpningens indre omkrets i retning med urviserne. Herunder fører styre- og lineforankringsorganet 5a foran seg nevnte ekstra eller ytterligere styreorganer 9, slik at disse - liggende tett an mot hverandre (fig. 1) - blir liggende i beredskapsstilling i nærheten av motoren 7. Thereby, the maneuvering line 6 is pulled in at the end 6'<1>', and the combined guide and line anchoring device 5a is thereby pulled along the inner circumference of the silo opening in a clockwise direction. Below this, the steering and line anchoring member 5a leads the aforementioned additional or additional steering members 9 in front of it, so that these - lying close to each other (fig. 1) - are lying in a standby position near the engine 7.

I området for motoren 7 befinner seg en ekstra nettsektor 4", fig. 1 og 2, hvis to styreorganer 5 griper inn i styreskinnens 2 underliggende overlappingsparti 2". En slik anordning medfører at også nettet 4 får et sektorformet overlappingsparti i området for den ekstra nettsektor 4" In the area of the motor 7, there is an additional net sector 4", Fig. 1 and 2, whose two control members 5 engage in the underlying overlapping part 2" of the guide rail 2. Such a device means that the network 4 also gets a sector-shaped overlapping part in the area of the additional network sector 4"

i nærheten av motoren 7. near the engine 7.

Claims

1. Safety net for a silo and intended for essentially horizontal placement at a level inside the silo that is located between the lower silo door frame and the silo floor, characterized in that the safety net (4) at the perimeter (4<1>) is attached to mainly evenly distributed control devices ( 5) which is displaceably arranged, preferably in a guide rail (2) for fixed mounting to the inner silo wall and which extends over the latter's circumference, to one (5a) of which control devices (5) a maneuver line (6) is attached which has control in the other control members (5), which maneuvering line extends over at least the entire perimeter of the silo (1) at the inner wall, which one control member (5a) which constitutes the maneuvering line fastening means, is connected to a distribution line (8) for a number of similar control members (9) which are not connected to the safety net (4) but which serve as controls for said maneuvering line (6), which distribution line (8) to which said similar control means (9) are attached with essentially the same inb yrde's distances, have a length that essentially corresponds to the perimeter of the silo at the inner wall.

2. Safety net in accordance with claim 1, characterized in that the guide rail (2), in addition to extending 360° around the circumference at the inner silo wall surface, has a relatively short extension piece (2") that extends under the adjacent guide rail section, so that the latter guide rail section overlaps the mentioned underlying extension piece (2").

3. Safety net in accordance with claim 2, characterized in that said underlying guide rail extension piece (2") is connected to a relatively short piece of the safety net's (4) circumference (4<1>), preferably via a pair of stationary control elements (5) which is not connected to the maneuver line ( 6) .

4. Safety net in accordance with one or more of the preceding claims, characterized in that the maneuvering line (6) is assigned to a drive motor (7) with a double line drum designed to roll up one maneuvering line section while simultaneously unrolling another maneuvering line section of the same line.

5. Safety net in accordance with any of the preceding requirements, characterized in that the guide rail (2) has the form of a U-rail lying in the use position with inwardly directed flanges (2<I>,<!>) at the U-branches outer ends, and that each of the aforementioned control members (5) comprises a rolling or sliding part (5''') designed for sliding/displaceable mounting in the U-rail (2), and that each control member (5) has a fastening ( 5<1>) for attachment to a point on the net perimeter (4<1>) as well as a through guide hole (5"") for guiding the maneuvering line (6).