NO864903L

NO864903L - SLIP PROTECTION DEVICE FOR VEHICLE WHEELS.

Info

Publication number: NO864903L
Application number: NO864903A
Authority: NO
Inventors: Bengt Erland Ilon
Original assignee: Autotyp Sa
Priority date: 1985-12-20
Filing date: 1986-12-08
Publication date: 1987-06-22
Also published as: JPS62155110A; NO864903D0; FI865034A0; DE3545528A1; EP0226899A3; FI865034A7; DE8536091U1; EP0226899A2

Description

Foreliggende oppfinnelse vedrører en glidningsbeskyttelsesanordning for kjøretøyshjul, hvilken glidningsbeskyttelsesanordning fremviser en sentrumdel, et antall fra denne utgående armer, en snøkjetting som er anbrakt på armene og en inntrekkingsanordning for å trekke glidningsbeskyttelsesanordningen inn fra en monteringsstilling til en funksjonsstilling, hvor sentrumdelen og armene befinner seg utenfor en gavlside av kjøretøyshjulet, inntrekkingsanordningen er koplet til en felg av kjøretøyshjulet for å belaste glidningsbeskyttelsesanordningen i retning mot kjøretøyshjulet, snøkjettingen forløper rundt den periferiske løpeflate av et dekk som inngår i kjøretøyshjulet, og hver arm strekker seg fra sentrumdelen i retning ut mot dekkets løpeflate forløp-ende langs felgen og en utside av dekket. The present invention relates to a skid protection device for vehicle wheels, which skid protection device exhibits a central part, a number of arms extending from this, a snow chain which is placed on the arms and a retracting device for pulling the skid protection device in from a mounting position to a functional position, where the central part and the arms are located outside an end face of the vehicle wheel, the retracting device is connected to a rim of the vehicle wheel to load the skid protection device in the direction towards the vehicle wheel, the snow chain extends around the peripheral running surface of a tire included in the vehicle wheel, and each arm extends from the center part in the direction out towards the running surface of the tire - end along the rim and an outside of the tire.

Ved glidningsbeskyttelsesanordninger av innledningsvis angitte type har det vist seg å være vesentlig at sentrumdelen befinner seg i betydelig avstand fra felgen når glidningsbeskyttelsesanordningen inntar sin funksjonsstilling på kjøretøyshjulet. Herved blir det nemlig mulig å skape tilstrekkelig plass for inntrekkingsanordningen som er plassert mellom sentrumdelen og felgen. Armene som utgår fra sentrumdelen, må derimot ikke strekke seg for langt fra kjøretøyshjulet, ettersom man i så fall risikerer at de kan støte mot kjøretøyets hjulhus. In the case of skid protection devices of the type indicated at the outset, it has been shown to be essential that the central part is located at a considerable distance from the rim when the skid protection device assumes its functional position on the vehicle wheel. This makes it possible to create sufficient space for the retracting device which is placed between the center part and the rim. The arms that start from the central part, on the other hand, must not extend too far from the vehicle wheel, as in that case there is a risk that they may collide with the vehicle's wheel housing.

Et annet krav er at armene heller ikke strekker seg så pass nær dekkets utside at den del av dekket som ved kjøring bukter seg ut, støter mot armene. Another requirement is that the arms also do not extend so close to the outside of the tire that the part of the tire that bulges out when driving hits the arms.

Et tredje krav er at armene dessuten i alminnelighet fremviser en lagerdel som er slik utformet og plassert at armene kan forskyves i forhold til sentrumdelen. A third requirement is that the arms also generally present a bearing part which is designed and placed in such a way that the arms can be displaced in relation to the central part.

Formålet med foreliggende oppfinnelse har ved den innledningsvis angitte glidningsbeskyttelsesanordning i første rekke vært å oppnå at armene ikke slår mot kjøretøyets hjulhus, at utbuktende deler av dekkets utside ikke kan støte mot armene, og at armene fortrinnsvis fremviser en lagerdel som griper forskyvbart inn i sentrumdelen. Dette oppnås i hovedsak ved hjelp av de karakteristiske trekk som fremgår at etterfølgende patentkrav 1. The purpose of the present invention, with the skid protection device indicated at the outset, has primarily been to achieve that the arms do not hit the vehicle's wheel housing, that bulging parts of the tire's outside cannot collide with the arms, and that the arms preferably have a bearing part that engages displaceably in the center part. This is mainly achieved with the help of the characteristic features which appear that subsequent patent claim 1.

Oppfinnelsen skal nedenfor forklares nærmere med henvisning til vedføyde tegninger, hvor fig. 1 i snitt illustrerer deler av glidningsbeskyttelsesanordningen ifølge oppfinnelsen; fig. 2 i snitt illustrerer en sentrumdel som inngår i glidningsbeskyttelsesanordningen; fig. 3 i sideriss illustrerer en glidningsbeskyttelsesanordning ifølge oppfinnelsen anordnet i funksjonsstilling på et kjøretøyshjul; fig. 4 i perspektivriss illustrerer glidningsbeskyttelsesanordningen ifølge oppfinnelsen anordnet i en monteringsstilling på et kjøretøyshjul; fig. 5 i perspektivriss illusterere glidningsbeskyttelsesanordningen ifølge oppfinnelsen trukket inn fra monteringsstilling til funksjonsstilling på kjøretøys-hjulet; og fig. 6 i perspektivriss illustrerer glidningsbeskyttelsesanordningen ifølge oppfinnelsen i sammenlagt stand. The invention will be explained in more detail below with reference to the attached drawings, where fig. 1 in section illustrates parts of the slip protection device according to the invention; fig. 2 in section illustrates a central part which is part of the slip protection device; fig. 3 in side view illustrates a skid protection device according to the invention arranged in functional position on a vehicle wheel; fig. 4 in perspective view illustrates the skid protection device according to the invention arranged in a mounting position on a vehicle wheel; fig. 5 in a perspective view illustrating the skid protection device according to the invention retracted from the mounting position to the functional position on the vehicle wheel; and fig. 6 in perspective view illustrates the slip protection device according to the invention in its assembled state.

Den på tegningene illustrerte glidningsbeskyttelsesanordning 1 fremviser en sentrumdel 2, fire fra denne utgående armer 3a - 3d, en på armene anordnet snøkjetting 4 og en inntrek kingsanordning 5 for å trekke glidningsbeskyttelsesanordningen inn fra en monteringsstilling (M, se fig. 4) til en funksjonsstilling (F, se fig. 5), hvor dels sentrumdelen 2 og armene 3a - 3d befinner seg utenfor en gavlside 6 av kjøretøyshjulet 7 og dels inntrekkingsanordningen 5 er koplet til en felg 8 av kjøretøyshjulet 7 for å belaste glidningsbeskyttelsesanordningen 1 i retning mot kjøretøys-hjulet 7, slik at den trekker glidningsbeskyttelsesanordningen 1 inn fra sin monteringsstilling M til sin funksjonsstilling F når hjulet roterer. I funksjonsstilling F forløper snøkjettingen 4 rundt den periferiske løpeflate 9 av kjøretøyshjulets 7 dekk 10 og hver arm 3a - 3d strekker seg fra sentrumdelen 2 i retning ut mot dekkets 10 løpeflate 9 forløpende langs felgen 8 og en utside 11 av dekket 10. The skid protection device 1 illustrated in the drawings presents a central part 2, four arms 3a - 3d emanating from this, a snow chain 4 arranged on the arms and a retracting device 5 for pulling the skid protection device in from a mounting position (M, see Fig. 4) to a functional position (F, see Fig. 5), where partly the center part 2 and arms 3a - 3d are located outside a gable side 6 of the vehicle wheel 7 and partly the retracting device 5 is connected to a rim 8 of the vehicle wheel 7 to load the skid protection device 1 in the direction of the vehicle the wheel 7, so that it retracts the skid protection device 1 from its mounting position M to its functional position F when the wheel rotates. In functional position F, the snow chain 4 runs around the peripheral running surface 9 of the tire 10 of the vehicle wheel 7 and each arm 3a - 3d extends from the center part 2 in the direction out towards the running surface 9 of the tire 10 running along the rim 8 and an outside 11 of the tire 10.

Sentrumdelen 2 fremviser en første, en andre og en tredje lagerdel, henholdsvis 12, 13 og 14, og disse er i forhold til hverandre dreibart lagret på en aksel 15 som utgjøres av en bolt 16 med en mutter 17 og en på bolten 16 tredd hylse 18 som er like lang eller noe lengre enn de partier av alle tre lagerdeler 12 - 14 som er lagret på hylsen 18. Herved sikres at bevegelsen mellom lagerdelene 12 - 14 ikke kan hindres når mutteren 17 trekkes til. The central part 2 presents a first, a second and a third bearing part, respectively 12, 13 and 14, and these are rotatably mounted in relation to each other on a shaft 15 which consists of a bolt 16 with a nut 17 and a sleeve threaded on the bolt 16 18 which is as long or somewhat longer than the parts of all three bearing parts 12 - 14 which are stored on the sleeve 18. This ensures that the movement between the bearing parts 12 - 14 cannot be prevented when the nut 17 is tightened.

Den tredje lagerdel 14 er beregnet til å holde inntrekkingsanordningen 5. I dette øyemed fremviser denne lagerdel 14 fire forhøyninger som er rettet mot den andre lagerdel 13, men ender i liten avstand fra denne for ikke å motvirke dreining mellom lagerdelene 13 og 14. Hver forhøyning 19 danner innenfor seg et spor 20 hvorigjennom strekker seg en løkkeformet del 21 av en i inntrekkingsanordningen 5 inngående stropp 22 av elastisk materiale, fortrinnsvis gummi-materiale. Stroppen 20 fremviser et hakeorgan 23 som er haket fast ved kjøretøyshjulets 7 felg 8, idet stroppen er strukket ut når den er haket fast. The third bearing part 14 is intended to hold the retracting device 5. To this end, this bearing part 14 presents four elevations which are directed towards the second bearing part 13, but ends at a small distance from this so as not to prevent turning between the bearing parts 13 and 14. Each elevation 19 forms within itself a groove 20 through which extends a loop-shaped part 21 of a strap 22 included in the retracting device 5 made of elastic material, preferably rubber material. The strap 20 exhibits a hook member 23 which is hooked to the rim 8 of the vehicle wheel 7, the strap being stretched out when it is hooked.

Den første lagerdel 12 fremviser to parallelt forløpende spor 24, 25 for to armer 3c og 3d som utgår i motsatte retninger fra sentrumdelen 2. Den andre lagerdel 13 fremviser to parallelt forløpende spor 26, 27 for to armer 3a og 3b som utgår i motsatte retninger fra sentrumdelen 2. For at den første lagerdels 12 armer 3c, 3d ikke skal komme i kontakt med den andre lagerdels 13 armer 3a, 3b, er det mellom disse lagerdeler 12 og 13 plassert en brikke 28. Hvert spor 24 - 27 fremviser en langsgående renne 29 for å tillate at vann, snø, is og/eller smuss kan passere ut av sporene 24-27. The first bearing part 12 presents two parallel-running grooves 24, 25 for two arms 3c and 3d which emanate in opposite directions from the center part 2. The second bearing part 13 presents two parallel-running grooves 26, 27 for two arms 3a and 3b which emanate in opposite directions from the center part 2. In order that the arms 3c, 3d of the first bearing part 12 do not come into contact with the arms 3a, 3b of the second bearing part 13, a chip 28 is placed between these bearing parts 12 and 13. Each track 24 - 27 exhibits a longitudinal chute 29 to allow water, snow, ice and/or dirt to pass out of grooves 24-27.

Hver arm 3a - 3d fremviser en lagerdel 30 via hvilken armen er forskyvbart lagret i respektive spor 24 - 27. Each arm 3a - 3d exhibits a bearing part 30 via which the arm is displaceably stored in respective grooves 24 - 27.

Lagerdelen 30 har en utenfor sentrumdelen 2 liggende anslagsdel 31 som er beregnet til å hindre at lagerdelen 30 trekkes ut av sitt respektive spor 24 - 27. The bearing part 30 has a stop part 31 lying outside the center part 2 which is designed to prevent the bearing part 30 being pulled out of its respective groove 24 - 27.

Lagerdelen 30 er rett og slutter seg til et overgangsparti 32 som befinner seg utenfor felgen 8, og som er slik skrått-stilt at det nærmer seg denne sett i retning utover mot dekket 10. Overgangspartiet 32 går i sin tur, sett i retning utover mot dekket 10, over i en ytterdel 33 før respektive arm 3a - 3d passerer felgens 8 ytterkant 34. Ytterdelen 33 befinner seg på grunn av overgangspartiets 32 utforming betydelig nærmere kjøretøyshjulet 7 enn lagerdelen 30 og fremviser et i hovedsaken rett parti 35 som slutter seg til overgangspartiet 32 og går over i et bueformet parti 36 som i sin tur fremviser et anleggsparti 37, via hvilket respektive arm 3a - 3d ligger an mot dekkets 10 utside 11 i nærheten av dets løpeflate 9. The bearing part 30 is straight and joins a transition part 32 which is located outside the rim 8, and which is so slanted that it approaches it when seen in the outward direction towards the tire 10. The transition part 32 goes in its turn, seen in the outward direction towards the tire 10, over into an outer part 33 before the respective arms 3a - 3d pass the outer edge 34 of the rim 8. Due to the design of the transition part 32, the outer part 33 is located significantly closer to the vehicle wheel 7 than the bearing part 30 and presents an essentially straight part 35 which joins the transition part 32 and passes into an arc-shaped part 36 which in turn presents a contact part 37, via which respective arm 3a - 3d rests against the outside 11 of the tire 10 near its running surface 9.

Ytterdelens 33 bueformede parti 36 er slik utformet at ytterdelen 33 vil strekke seg i en avstand A fra slike deler 38 av dekkets utside 11 som bukter seg ut når dekket 10 belastes ved å stå på et underlag. Ved at ytterdelen 33 ligger vesentlig nærmere kjøretøyshjulet 7 enn lagerdelen 30, sikres at ytterdelen 33 ikke kan slå mot et hjulhus eller andre deler av kjøretøyet, og ved at det finnes en avstand A mellom ytterdelen 33 og for utbukting utsatte deler 38 av dekkets utside 11, sikres at dekket 10 ikke kan påvirke armene 3a - 3d og derved glidningsbeskyttelsesanordningen 1 på en ugunstig måte når nevnte deler 38 bukter seg ut. The arc-shaped part 36 of the outer part 33 is designed in such a way that the outer part 33 will extend at a distance A from such parts 38 of the outside 11 of the tire which bends out when the tire 10 is loaded by standing on a surface. By the fact that the outer part 33 is significantly closer to the vehicle wheel 7 than the bearing part 30, it is ensured that the outer part 33 cannot hit a wheel housing or other parts of the vehicle, and by the fact that there is a distance A between the outer part 33 and parts 38 of the tire's outside 11 exposed to deflection , it is ensured that the tire 10 cannot affect the arms 3a - 3d and thereby the slip protection device 1 in an unfavorable way when said parts 38 bend out.

Anleggspartiet 3 7 av respektive arm 3a - 3d er ombøyd og fremviser en dreibart lagret bøyle 39 som forløper langs løpeflaten 9 og holder snøkjettingen 4. The attachment part 3 7 of the respective arm 3a - 3d is bent over and presents a rotatably mounted hoop 39 which extends along the running surface 9 and holds the snow chain 4.

Oppfinnelsen er ikke begrenset til den ovenfor beskrevne og på tegningene illustrerte utførelse av oppfinnelsesgjen-standen, men kan variere innenfor rammen for etterfølgende patentkrav. Således kan sentrumdelen fremvise to, tre eller flere armer, selv om fire armer vanligvis er å foretrekke. Inntrekkingsanordningen kan fremvise et annet hensiktsmessig antall stropper enn fire, og armenes overgangsparti som nærmer seg kjøretøyshjulet suksessivt, kan være rett eller bueformet, likesom ytterdelens bueformede parti kan være rett. The invention is not limited to the embodiment of the invention described above and illustrated in the drawings, but may vary within the scope of subsequent patent claims. Thus, the center portion may exhibit two, three or more arms, although four arms are usually preferred. The retractor may present a suitable number of straps other than four, and the transition portion of the arms which successively approach the vehicle wheel may be straight or arcuate, just as the arcuate portion of the outer portion may be straight.

Claims

1. Skid protection device for vehicle wheels, which skid protection device (1) presents a central part (2), a number of arms (3a - 3d) extending therefrom, a snow chain (4) placed on the arms (3a - 3d), and a retracting device ( 5) to retract the skid protection device (1) from a mounting position to a functional position where the center part (2) and the arms (3a - 3d) are located outside a gable side (6) of the vehicle wheel (7), the retracting device (5) is connected to a rim (8) of the vehicle wheel (7) to load the skid protection device (1) in the direction of the vehicle wheel (7), the snow chain thing (4) extends around the peripheral running surface (9) of a tire (10) included in the vehicle wheel (7) ), and each arm (3a - 3d) extends from the center part (2) in the direction out towards the tire's (10) running surface (9) running along the rim (8) and an outside (11) of the tire (10), characterized in that each arm exhibits a transition portion (32) which, when the slip protection anor the valve (1) assumes its functional position on the vehicle wheel (7), is located outside the rim (8) and approaches this, whereby a bearing part (30) arranged on the center part (2) passes via the transition part (32) into an outer part ( 33) which extends significantly closer to the vehicle wheel (7) than the bearing part (30) and extends along the outside (11) of the tire (10) at a distance (A) from such parts (38) of the outside (11) which bend out when the tire ( 10) is charged.

2. Slip protection device in accordance with claim 1, characterized in that the outer part (33) of the arm (3a - 3d) via a contact part (37) rests against the outside (11) of the tire (10) in the vicinity of the running surface (9) of the tire (10) when the skid protection device (1) assumes its functional position on the vehicle wheel (7).

3. Slip protection device in accordance with claim 2, characterized in that the outer part (33) of the arm (3a - 3d), viewed in the direction of a contact part (37) which rests against the outside (11) of the tire (10), exhibits a part (36) which successively approaches the outside (11) of the tire (10) when the skid protection device (1) assumes its functional position on the vehicle wheel (7).

4. Slip protection device in accordance with one or more of the preceding claims, characterized in that at least one of the arms (3a - 3d) is longitudinally displaceable stored in a first bearing part (12) which is included in the central part (2), and at least one one of the arms (3a - 3d) is longitudinally displaceable stored in a second bearing part (13) which is part of the center part (2), the retracting device (5) being arranged on a third bearing part (14) which is part of the center part (2), and that all three bearing parts (12, 13 and 14) are mounted rotatably in relation to each other on a shaft (15).

5. Slip protection device in accordance with claim 4, characterized in that the third bearing part (14) which is part of the center part (2) exhibits a number of elevations (19) which are directed towards the second bearing part (13) part of the center part (2), that a strap (22) of elastic material included in the retracting device (5) extends through a groove (20) formed by each elevation (19), whereby the strap (22) is held firmly to the center part (2).

6. Slip protection device in accordance with claim 5, characterized in that the strap (22) has a hook member (23) for hooking the strap (22) onto the rim (8) of the vehicle wheel (7).

7. Slip protection device in accordance with claim 4, 5 or 6, characterized in that the first bearing part (12) of the central part (2) presents two parallel grooves (24, 25) in which two arms (3c and 3d) which proceed in opposite directions from the central part ( 2), is displaceably supported, and that the center part (2)'s second bearing part (13) exhibits two parallel grooves (26, 27) in which two arms (3a and 3b) which proceed in opposite directions from the central part (2), are displaceably supported.

8. Slip protection device in accordance with one or more of claims 4-7, characterized in that the arms (3c, 3d) in the first bearing part (12) of the central part (2) are separated from the arms (3a, 3b) of the second bearing part (13) by means of of a chip (28) which is arranged between the first and second bearing parts (12, 13).

9. Slip protection device in accordance with one or more of claims 4-8, characterized in that the grooves (24 - 27) in the center part (2) bearing parts (12, 13) for the arms (3a - 3d) exhibit longitudinal grooves (29).

10. Slip protection device in accordance with one or more of the preceding claims, characterized in that each arm (3a - 3d) has an essentially rectangular cross-section, a straight bearing part (30) which presents a stop part (31) that lies outside the center part (2), in that the transition part (32) which joins the bearing part (30) is directed towards the rim (8) when the skid protection device (1) assumes its functional position on the vehicle wheel (7), and the transition part (32) passes into the outer part (33) within the arm ( 3a - 3d) passes past an outer edge (34) of the rim (8).