DK142136B - Castor. - Google Patents

Castor. Download PDF

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Publication number
DK142136B
DK142136B DK406575A DK406575A DK142136B DK 142136 B DK142136 B DK 142136B DK 406575 A DK406575 A DK 406575A DK 406575 A DK406575 A DK 406575A DK 142136 B DK142136 B DK 142136B
Authority
DK
Denmark
Prior art keywords
furniture
wheels
shaft
bearing
roll
Prior art date
Application number
DK406575A
Other languages
Danish (da)
Other versions
DK406575A (en
Inventor
Carl Gottschalck Andersen
Original Assignee
Carl Gottschalck Andersen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Gottschalck Andersen filed Critical Carl Gottschalck Andersen
Priority to DK406575A priority Critical patent/DK142136B/en
Priority to DE19762640018 priority patent/DE2640018C2/en
Priority to SE7609887A priority patent/SE429423B/en
Publication of DK406575A publication Critical patent/DK406575A/da
Publication of DK142136B publication Critical patent/DK142136B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0036Castors in general; Anti-clogging castors characterised by type of wheels
    • B60B33/0042Double or twin wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0028Construction of wheels; methods of assembling on axle

Description

i 142136in 142136

Opfindelsen angår en møbelrulle af den art, som har to identiske hjul (tvillingehjul) med rørformede akseltappe, der er lejret i hver sin ende af en med et kørestel stift forbundet lejebøsning, og hvori kørestellet er udformet 5 med et leje for en om en lodret akse drejelig tap, som er forskudt i forhold til aksen for hjulenes lejebøsning.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a furniture roller of the type having two identical wheels (twin wheels) with tubular shaft pins, mounted at each end of a bearing bushing rigidly connected to a drive frame, in which the driving frame is formed with a bearing for one about a vertical axis pivot loss, which is offset relative to the axis of the bearing bushing.

Den i kørestellet monterede, lodrette tap tjener til at montere møbelrullen drejeligt i bundfladen af et møbel.The vertical tab mounted in the driving frame serves to mount the furniture roll pivotally in the bottom surface of a piece of furniture.

Den kendte teknik vedrørende fremstilling af sådanne 10 eller lignende møbelruller kan resumeres således:The prior art of making such 10 or similar furniture rolls can be summarized as follows:

Fra beskrivelsen til USA patent nr. 3.713.186 er det kendt at montere et par identiske tvillingehjul med rørformede akseltappe i hver sin ende af en i et kørestel fastsiddende akseltap og at udforme kørestellet med en 15 hjulene delvis omsluttende skærm for at beskytte hjulenes lejer mod indtrængen af støv eller urenheder. En sådan beskyttelsesskærm, som kun omslutter den øverste del af hjulene, men som er åben nedadtil i området omkring hjulenes berøringsflade med gulvet, kan imidler-20 tid kun beskytte hjullejerne mod urenheder, som falder ovenfra ned på gulvfladen, men ikke mod urenheder, som hvirvles op fra gulvfladen og trænger op gennem mellemrummet mellem hjulene og ind i de mellem disses akseltappe og kørestellet dannede, snævre spalter.From the specification of U.S. Patent No. 3,713,186, it is known to mount a pair of identical twin wheels with tubular shaft pins at each end of a axle shaft fixed to a drive frame and to design the drive frame with a 15-wheels partially enclosing screen to protect the wheels bearings from penetration of dust or impurities. However, such a protective screen, which encloses only the upper part of the wheels, but which is open downwards in the area around the wheels' contact surface with the floor, can only protect the wheel bearings from impurities falling from the bottom of the floor surface, but not from impurities such as are swirled up from the floor surface and penetrate through the gap between the wheels and into the narrow slits formed between their axle pins and the drive frame.

25 En lignende konstruktion er kendt fra USA patent nr.A similar construction is known from US Pat.

3.805*320, hvor de identiske tvillingehjul ligeledes er monteret drejeligt om en fastsiddende omdrejningstap, mellem hvilken og hjullejerne der findes spalteformede åbninger, som muliggør indtrængen af støv til lejerne.3,805 * 320, wherein the identical twin wheels are also mounted pivotally about a fixed pivot between which and the wheel bearings are provided with slit-shaped openings which allow the ingress of dust into the bearings.

30 Fra beskrivelsen til svensk fremlæggelsesskrift nr.30 From the description to Swedish submission no.

385.820, hvis indhold svarer til britisk patent nr.385,820, the content of which corresponds to British patent no.

142136 2 1.416.991 og tysk OS nr. 2.257.763, kendes en møbelrulle, ved hvilken de ovenfor nævnte ulemper er afhjulpet, idet hjullejerne er støvtæt indkapslet i en bøsning, som helt omslutter møbelrullens lejer. Denne møbelrulle er imid-5 letid væsentligt mere kompliceret end de to ovenfor nævnte møbelruller, bl.a. fordi de to hjul ikke er identiske, men har forskelligt udformede akseltappe og til hver af disse svarende, specielle koblingsorganer. Der kræves således flere hovedkomponenter til fremstilling 10 af en sådan møbelrulle, nemlig i hvert fald to forskellige hjulkomponenter.142136 2 1,416,991 and German OS No. 2,257,763, a roll of furniture is known in which the above-mentioned disadvantages are remedied, the wheel bearings being dust-tightly enclosed in a bushing which completely encloses the bearings of the furniture roll. However, this furniture roll is considerably more complicated than the two furniture rolls mentioned above, i.a. because the two wheels are not identical but have different shaft pins and for each of these corresponding, special coupling means. Thus, several major components are required for making such a roll of furniture, namely at least two different wheel components.

Det er nu formålet med den foreliggende opfindelse at tilvejebringe en møbelrulle af den indledningsvis beskrevne art, som i modsætning til de i USA patenterne 15 nr. 3.713.186 og nr. 3-805.320 beskrevne møbelruller har fuldstændig støvtæt indkapslede hjullejer og ikke har nogen i kørestellet fastsiddende tap, hvis fastgørelse komplicerer og fordyrer fremstillingen, og som i modsætning til den fra det svenske fremlæggelsesskrift 20 kendte møbelrulle kan fremstilles med identiske tvillin-gehjul og derfor med færre hovedkomponenter.It is now an object of the present invention to provide a roll of furniture of the type initially described which, unlike the U.S. Patent Nos. 3,713,186 and No. 3-805,320, rolls of furniture, has completely dust-tight enclosed wheel bearings and has no the fixed frame, whose fastening complicates and expensiveens the manufacture, and which, contrary to the Swedish rolling document 20 known as roll of furniture, can be made with identical twin-wheel wheels and therefore with fewer main components.

En møbelrulle, som forener den fra det svenske fremlæggelsesskrift kendte, støvfrie indkapsling af hjullejerne med den fra de nævnte USA patentskrifter kendte, simple 25 opbygning med benyttelse af de færrest mulige komponenter og uden anvendelse af de i kørestellet fastsiddende omdrejningstappe, er ifølge opfindelsen karakteriseret ved, at de identiske tvillingehjul er indbyrdes sammenkoblet ved, at der indvendig i den ved akseltappenes 30 lejring i bøsningen dannede, hule aksel er anbragt en i forhold til akseltappene og bøsningen frit drejelig, cylindrisk koblingstap, som ved begge ender har ringnoter, der er i indgreb med koblingsorganer indvendig i akseltappene .According to the invention, a furniture roller which combines the dust-free enclosure of the wheel bearings known from the Swedish publication specification with the simple structure known from the United States Patent Specifications, utilizing the fewest possible components and without the use of the pivots of rotation, is characterized by the invention. the identical twin wheels are mutually interconnected in that a hollow shaft formed in relation to the shaft pins and the bushing has a rotatable cylindrical coupling pin formed at the ends of the bearing 30 of the shaft pins 30 in the bush, engagement with coupling means inside the shaft pins.

142136 3142136 3

Det skal særligt fremhæves, at koblingstappen, som hindrer tvillingehjulene i indbyrdes aksial forskydning, adskiller sig væsentligt fra de kendte, i køre-stellet fastsiddende tappe derved, at den ikke bliver 5 påvirket af noget bøjningsmoment hidrørende fra belastningen på møbelrullen og derfor kan fremstilles af et materiale uden nævneværdig bøjningsstyrke, f.eks. i form af et cylindrisk formstoflegeme, som under montagen kan indlægges løst drejeligt indvendig 10 i den af akseltappene dannede, hule aksel. Det skal endvidere fremhæves, at denne aksel, som har i det væsentlige samme længde som kørestellets lejebøsning, i praksis kan udformes med en passende stor overflade til opnåelse af en gunstig belastningsfordeling og en 15 deraf følgende bedre materialeudnyttelse end ved de kendte møbelruller.It should be particularly emphasized that the coupling pin which prevents the twin wheels from mutually axial displacement differs substantially from the known pins in the drive frame in that it is not affected by any bending moment resulting from the load on the furniture roller and can therefore be produced by a material without appreciable bending strength, e.g. in the form of a cylindrical plastic body which can be inserted loosely pivotally inside the mounting 10 in the hollow shaft formed by the shaft pins. It should also be pointed out that this shaft, which is substantially the same length as the bearing bushing, can in practice be designed with a suitably large surface to achieve a favorable load distribution and consequent better material utilization than with the known furniture rollers.

Sidstnævnte virkning opnås ved, som angivet i krav 2, at udforme koblingstappen med i det væsentlige samme længde som lejebøsningen og akseltappene med den halve 20 længde af denne.The latter effect is obtained by, as stated in claim 2, forming the coupling pin of substantially the same length as the bearing bushing and the shaft pins with half the length thereof.

I en udførelsesform for opfindelsen består koblingsorganerne indvendig i akseltappene af deri udformede ringvulste, som er i indgreb med koblingstappens ring-noter, som angivet i krav 3.In one embodiment of the invention, the coupling means inside the shaft pins consist of annular beads formed therein which are in engagement with the ring grooves of the coupling pin as claimed in claim 3.

25 I stedet for ringvulste kan koblingsorganerne på kendt måde bestå af i ringvulstene indklemte fjederringe.Instead of ring beads, the coupling means may in known manner consist of spring rings clamped in the ring beads.

Opfindelsen forklares i den følgende beskrivelse under henvisning til tegningen, hvor 29 fig. 1 viser møbelrullens ene hjul, set i aksialt snit, 142136 4 fig. 2 viser det andet hjul, ligeledes i aksialt snit, og med en koblingstap indskudt i den hule akseltap,The invention is explained in the following description with reference to the drawing, in which 1 shows one wheel of the furniture roller, seen in axial section, FIG. 2 shows the second wheel, also in axial section, with a coupling pin inserted in the hollow shaft pin,

fig. 3 viser det som lejehus for hjulenes akseltappe 5 udformede stel, set i snit efter linien III-IIIFIG. 3 shows the bearing housing for the axle shaft 5 of the wheels, cut in section along the line III-III

i fig. 5, fig. 4 viser en ved samling af delene i fig. 1-3 dannet møbelrulle, fig. 5 viser møbelrullens stel, set fra den ene side, og 10 fig. 6 og 7 viser en ændret udførelsesform for møbelrullen, set henholdsvis fra den ene side og i aksialt snit efter linien VII-VII i fig. 6.in FIG. 5, FIG. 4 shows an assembly of the parts of FIG. 1-3 formed roll of furniture, fig. 5 is a side view of the furniture roll frame, and FIG. 6 and 7 show a modified embodiment of the furniture roll, seen from one side and axially, respectively, along line VII-VII in fig. 6th

I den på tegningen viste udførelsesform har møbelrullen to identiske tvillingehjul 20, fig. 1 og 2, med hule 15 akseltappe 21, som er lejret i en lejebøsning 11 i et stel 10, fig. 3, 4 og 5, hvori der er udformet et leje 12 for en om en lodret akse drejelig tap 13 til montering af møbelrullen på undersiden af et møbel, f.eks. endefladen af et bord- eller stoleben.In the embodiment shown in the drawing, the furniture roll has two identical twin wheels 20; 1 and 2, with hollow 15 shaft pin 21 housed in a bearing sleeve 11 in frame 10; 3, 4 and 5, in which a bearing 12 is formed for a pin 13 rotatable about a vertical axis for mounting the furniture roller on the underside of a furniture, e.g. the end surface of a table or chair leg.

20 Hjulene 20’s akseltappe 21 er lejret i hver sin halvdel af den tværs gennem stellet 10 forløbende lejebøsning 11 og er indbyrdes sammenkoblede ved hjælp af en i akseltappenes hulrum 22 indført koblingstap 23» fig. 2, der har ringformede noter 24, som er i indgreb med indvendig 25 i akseltappene 21 udformede vulste 25· 'Montagen af hjulene 20 på stellet 10 sker ved, at man først indskyder koblingstappen 23 i den hule akseltap 21 på det ene hjul, fig. 2. Når koblingstappen 23 er ført helt ind til bunden af hulrummet 22 i akseltappen 30 21, kommer vulsten 25 i indgreb med noten 24, hvorved 142136 5 koblingstappen fastholdes indvendig i akseltappen 21 på det i fig. 2 viste hjul 20. Derpå skydes begge hjulene fra hver sin ende af lejebøsningen 11 ind i denne, hvorved den frie ende af koblingstappen 23, fig. 2, føres 5 ind i hulrummet 22 i akseltappen 21 i det i fig. 1 viste hjul og fastholdes ved indgreb af dennes vulst 25 i koblingstappens yderste not 24.The shaft pins 21 of the wheels 20 are mounted in each half of the bearing bushing 11 which extends transversely through the frame 10 and are interconnected by means of a coupling pin 23 »fig. 2 having annular grooves 24 which engage beads 25 formed in the inner shaft 21 of the shafts 21 · The mounting of the wheels 20 of the frame 10 is effected by first inserting the coupling pin 23 into the hollow shaft pin 21 on one wheel; . 2. When the coupling pin 23 is inserted all the way to the bottom of the cavity 22 of the shaft pin 21, the bead 25 engages the groove 24, thereby holding the coupling pin internally of the shaft pin 21 of the embodiment shown in FIG. 2, then both wheels are pushed from each end of the bearing bush 11 into it, whereby the free end of the coupling pin 23, fig. 2, 5 is inserted into the cavity 22 of the shaft pin 21 in the embodiment of FIG. 1 and is retained by engagement of its bead 25 in the outer groove 24 of the coupling pin.

Når de to hjul på denne måde er monteret på stellet 10, som vist i fig. 4, kommer enderne af de to akseltappe 21 10 til at ligge an mod hinanden i lejebøsningens 11 lodrette midterplan, idet længden af akseltappene 21 er lig med den. halve længde af lejebøsningen 11, medens koblingstappen 23 har samme længde som lejebøsningen 11. De to ved enderne sammenstødende akseltappe 21 danner en gen-15 nemgående, hul aksel, som er sammenkoblet ved hjælp af den indvendige koblingstap 23, og som er støv- og trådtæt lejret i lejebøsningen 11.In this way, when the two wheels are mounted on the frame 10, as shown in FIG. 4, the ends of the two shaft pins 10 10 will abut against each other in the vertical center plane of the bearing bush 11, the length of the shaft pins 21 being equal to it. half the length of the bearing bush 11, while the coupling pin 23 is the same length as the bearing bush 11. The two shaft pins 21 at the ends form a continuous hollow shaft which is coupled by means of the inner coupling pin 23 and which is dust and thread tightly enclosed in the bearing bush 11.

I den i fig. 6 og 7 viste udførelsesform er stellet 10 på kendt måde udformet med en hjulene 20 delvis omslut-20 tende skærm 14, og hvert af hjulene 20 er yderligere udformet med en koaksialt med akseltappen 21 beliggende ringflange 26, hvis indvendige diameter passer til den udvendige diameter af lejebøsningen 11, så at flangen 26 omslutter og kan drejes i forhold til denne. Hjulene 25 20 kan derved lejres både indvendigt i og udvendigt på lejebøsningen 11, og flangerne 26 danner da en yderligere tætning, som fuldstændigt beskytter møbelrullens lejer mod indtrængen af urenheder.In the embodiment shown in FIG. 6 and 7, the frame 10 is formed in a known manner with a wheels 20 partially enclosing screen 14, and each of the wheels 20 is further provided with a coaxial ring flange 26 located on the shaft 21, the inside diameter of which corresponds to the outside diameter. of the bearing sleeve 11 so that the flange 26 encloses and can be rotated relative thereto. The wheels 25 20 can thereby be mounted both internally and externally on the bearing sleeve 11, and the flanges 26 then form an additional seal which completely protects the bearings of the furniture roll against the ingress of impurities.

I de viste og beskrevne udførelsesformer er stellet 10 30 eksempelvis udformet som et tilnærmelsesvis halvcirkulært, skiveformet legeme, hvori lejebøsningen 11 og taplejet 12 er udformet, men det kan i øvrigt have en hvilken som helst anden hensigtsmæssig form, som muliggør,For example, in the illustrated and described embodiments, the frame 10 is formed as an approximately semi-circular, disc-shaped body in which the bearing sleeve 11 and the stud bearing 12 are formed, but may otherwise have any other convenient shape which allows

DK406575A 1975-09-11 1975-09-11 Castor. DK142136B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DK406575A DK142136B (en) 1975-09-11 1975-09-11 Castor.
DE19762640018 DE2640018C2 (en) 1975-09-11 1976-09-06 Furniture castor
SE7609887A SE429423B (en) 1975-09-11 1976-09-07 MOBELRULLE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK406575A DK142136B (en) 1975-09-11 1975-09-11 Castor.
DK406575 1975-09-11

Publications (2)

Publication Number Publication Date
DK406575A DK406575A (en) 1977-03-12
DK142136B true DK142136B (en) 1980-09-08

Family

ID=8129810

Family Applications (1)

Application Number Title Priority Date Filing Date
DK406575A DK142136B (en) 1975-09-11 1975-09-11 Castor.

Country Status (3)

Country Link
DE (1) DE2640018C2 (en)
DK (1) DK142136B (en)
SE (1) SE429423B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA818122B (en) * 1980-12-12 1982-10-27 British Castors Ltd Twin wheeled castor
GB2171897B (en) * 1985-02-12 1989-01-18 Guy Raymond Eng Co Ltd Castor wheel
DK0386956T3 (en) * 1989-03-09 1994-10-10 Guy Raymond Eng Co Ltd castors
IT1398316B1 (en) * 2010-02-23 2013-02-22 O G T M Ohg S R L PIROETTING WHEEL STRUCTURE, PARTICULARLY FOR FURNITURE AND SIMILAR.
CN103851066A (en) * 2012-12-05 2014-06-11 夏爱棠 Wheel shaft of environment protection box

Also Published As

Publication number Publication date
DE2640018C2 (en) 1986-09-18
SE7609887L (en) 1977-03-12
DK406575A (en) 1977-03-12
SE429423B (en) 1983-09-05
DE2640018A1 (en) 1977-03-24

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