DE7441571U - Furniture castors are attached to the legs or supports of chairs, small upholstered armchairs, small carriages, containers and the like - Google Patents

Description

BERLIN-DAHLEM 33 PODSIELSKIALLEE OB a MUNICH 22 WIDENMAYERSTRASSE 49 ^

,. ,,. _ _, BERLIN: DIPL.-ING. R. MÜLLER-BORNER S.

ing. C. Olivetti & C., S.p.A. ,?

MUNICH: DIPL.-ING. HANS-H. WEY ^

25 683 I.

Si

Berlin, December 11, 1974 |

P i) t

I Furniture castors attached to legs or supports |

of chairs ^ small upholstered armchairs, small |

Trolleys, containers and the like r

The present innovation relates to a furniture castor attachment on the legs or supports of chairs, small upholstered armchairs, small carts, containers and the like, the roller being rotatable by means of a bolt on one side of the leg or support.

In a known fastening device of this type, a bolt is fastened to the support or to the leg. The role has a housing coaxial with the seat of the support, around the bolt and a fastening nut or snap ring of the bolt to prevent the roll from falling off the bolt. For aesthetic reasons, the case is closed A small cover is attached to the roller so that the view of the fastening element remains hidden. This device consists therefore consists of several parts and is therefore quite expensive «In addition When the chair is used, the body of the roller deforms and the pressure coupling between the small one is reduced Lid and the case, preventing falling dee small

m 2 -

SERLINi TELEFON (030) 031 2OQU M Ü N 0 H Ά NI TELGPON (00 11) ίΐά 00 OS KABELl PROPINDUS-TELEX 0104007 KABBLl P ¹ ROPINDUB · TELEiX 00 04244

Cover is promoted. It's difficult «not to say impossible to put the little lid back into the deformed case.

The technical problem «which is the present innovation represents »consists of a simple and inexpensive device For attaching castors to the supports of legs on chairs, small upholstered armchairs, small carriages, containers and the like, with rapid assembly feasible and also ensuring the aesthetics of the role is.

This object is achieved according to the invention in that a part of the roller directed against the support is coaxial with the Bolt is provided with a flange, a fastening element being provided which, in cooperation with the Flange blocks the roller axially with respect to the support, and that means are provided to attach the fastening element to attach the support.

Further details and advantages of the innovation are based on an embodiment shown in the drawing described in more detail below. Show it:

1 shows a section through the furniture castor attachment, viewed from the front on a leg or a support according to the innovation;

FIG. 2 shows a longitudinal view of the device according to FIG. 1; 3 shows a partial section along the line IXI-IIX in FIG. 1;

V441571 06/05/75

4 shows a partial section of a variant seen from the front to the device according to FIG. 1;

5 shows a partial section, seen from the front, of a second variant of the device according to FIG. 1; and

6 shows a partial section, seen from the front, of a third variant of the device according to FIG. 1.

The new device is indicated generally at 11 in Figures 1 and 2, each of two being substantially the same Rollers 12 and 13 have an outer peripheral surface 14 to support themselves on the ground when rolling. Each roll 12, is closed on one side with a side wall 16 and has a Nal> e 17 on the other side. The hub 17 has a cylindrical seat 18 which. concentric to the outside Circumferential surface 14 is arranged, and a circular groove 19 ″ which is machined from the outer circumference of the hub itself so that both delimit a flange 21.

A cylindrical bolt 22 is normally inserted into a support 23 which is made in one piece with a leg 24 a chair or a small upholstered armchair, which are not shown in the drawing. The bolt has two parts 26 which protrude from the sides of the support 23 and are designed to each fit in the seat 18 of the to store both rollers 12 and 13.

An element 27 consists of a profile disk in U-shape and is mainly formed from a flat part, the serves to cooperate with the corresponding lower wall surface 28 of the support 23 and the two small legs 29 which are substantially perpendicular to the flat part

run itself. The two small legs 29 (Fig. 3) have the corresponding ends 31 formed in a semicircular fork shape concentric to the bolt 22 to be stored in the grooves 19 (Fig. 1) of the rollers 12 and 13. The flat part of the profile disk 27 has in in the middle a hole 32 to fix a bolt 33 of the support 23. In addition, the support 23 has two shoulders 34 and 36 (Fig. 2) in order to prevent the chair or the small upholstered armchair from tipping over, in cooperation with the floor, when the user presses the support 23 tends too much towards the floor. The two shoulders 34 and 36 are located at the lower ends of the support 23, in order to define a space 37 for the passage of the element 27.

To mount the rollers 12 and 13 on the support 23, proceed as follows:

Assuming that the bolt 22 has already been attached to the support, the two rollers 12 and 13 are arranged in this way indicates that the parts 26 of the bolt 22 can be stored in the seat 18. With the element 27 you can now use the space from up to the arrangement of the ends 31 in the corresponding groove 19 and the bolt 33 in the hole 32. Now is with pressure (and with heat, if the material of the support 23 is made of thermoplastic) the end of the bolt 33 riveted in such a way that a head 38 is formed to prevent the element 27 from becoming detached.

The two small saw legs 29 with the corresponding ones Semicircular ends 31 supported by grooves 19 ensure that the rollers 12 and 13 run freely and independently

and prevent by means of the splashes 21 that the rollers

12 and 13 slide axially to bolt 22, '■',

4, 5 and 6 are variants of the above. described _;

Fastening device shown. The three, variants be I.

apply to fastening systems in which the element 27 j '

on the support 23 is removable. |

In Fig. 4, the bolt 33 of the support 23 is machined |

that it forms a head 44 and a collar 41 so that the |

elastic thin plates 42 of a clamp 43 together f

work. The assembly is carried out in the same way as the description above |

until element 27 is attached. Now the |

Clamp 43 by pressing it against element 27 and |

the head 44 through the elastic plates 42 so that |

these claim the federal government 41 and the dropping out of §

Element 27 prevent. |

I In Fig. 5, the support 23 has no bolt 33, and the | Element 27 is attached to this support with a threaded screw 1

is 46 attached.

In Fig. 6, the bolt 33 is the same as that in Fig. 4, the element 27 with an elastic clamp 47 against the wall 28 is held. This clamp has small springs 48 which are used to allow the head 44 to pass through » to be subsequently claimed against the federal government 41.

It is therefore clear that the fastening element 27 cooperates with the flange 21 of each roller 12 and 13 and the two rollers 12, 13 are fastened axially opposite the support 23. The bolt 33 of the support 23 is also used there, the element 27 to be attached to the support 23.

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F-s is understood that on this device for attachment a role on the legs or the supports of chairs »small upholstered armchairs, trolleys, containers and the like Changes and improvements may be made to the shape and arrangement of the various parts without leaving the area of innovation.

Protection claims ι

Claims (1)

Protection claims Furniture castors attached to a leg or a support of steels, small upholstered armchairs, small wagons, containers or the like, the roller being rotatable by means of a bolt on one side of the leg or the support, characterized in that a part of the roller (12; 13) directed against the support (23) is coaxial is provided for the bolt (22) with a flange (21) that a fastening element (27) is provided, wherein together; act with the flange (21), the roller is axially blocked with respect to the support, and that means (32,33; 46) are provided are to attach the fastening element (27) to the support (23). Fastening according to claim 1, wherein the support has two sides lying substantially parallel to one another, the bolt has two parts protruding from these sides, and a second one which is essentially the same on a roller Mated roller, and the first and second rollers are rotatably supported by the parts of the bolt, thereby characterized in that the fastening element (27) consists of a profile disk in U-shape and two legs (29) which is substantially perpendicular to the lower surface (28) and parallel to the sides of the support (23) extend, and that each of the legs (29) has an end (31) in the shape of a fork, which in the corresponding groove (19) intervene and with the. associated flange (21) work together. 7441571 06/05/75 G 7 ^ ^ i 571.7 ^{:> /} '"'"'' - * "" ■ " ^: '' * i8 _p February .1,975 3. Fastening according to claim 2, characterized daduroh, that the fork-shaped ends (3i) are semicircular and that the fastening means (33 | 38) of the element (27) contain a bolt (33) integral with the support (23). 4. Attachment according to claim 3, wherein the leg or the Supports are made of thermoplastic material, characterized in that the Bolt (33) is riveted. 5. Fastening according to claim 1, characterized in that the fastening element (27) on the Support (23) is attached to the customer. 6. Attachment naoh claim 5 »characterized that the fastening element (27) roit a screw (45) is attached to the support (23). 7. Attachment naoh claim 5 »characterized that the fastening element (27) by means of an elastic clamp (^ 3, ^ 7) is attached; through which the bolt (33) is connected to the support (23). 8. fastening naoh one of the preceding claims i to 7, characterized in that the Splash (21) is delimited by a radial groove (19) which consists of a hub (18) of each of the roller parts (12,13) is worked out. MB / Ma - 25 683