DE2829936A1 - Tubeless tyre fitting equipment - has angled work table and two rotating tool heads to suit wide tyres - Google Patents

Abstract

The improved fitting rig for tubeless tyres has a rotating work holder (8) which has two separate rotating heads (13, 14) which moves around the tyre and press it into the clamped wheel rim. The system uses angled heads to enable a wide profile tyre to be fitted without additional equipment. After fitting one side of the tyre the wheel rim is turned over and the other wall pressed home.

Description

Device for pulling up

Motor vehicle tires " The invention relates to a device for mounting car tires on disc wheels with a mounting system with a rotatable mounting head and mounting tools around the clamped on a holder Disc wheel is passed around.

Such tire fitting systems are known. From US-PS 28 16 604 a tire fitting system has also become known in which a disc wheel mount, can be clamped on the disc wheels, passed under a retractable winding head and the winding head is a winding system that can be guided along the rim flange, having.

The pull-up system itself consists of two separate pull-up arms. A pull-up runner is provided on each of the pull-up arms. When assembling the upper and lower tire bead over the disc wheel horn in one operation pressed. With such a known winding system, however, it is not possible or at least associated with major problems, very wide tires or low profile tires to mount, because the tire can not be deformed so much without the danger there is damage.

From the German Offenlegungsschrift 21 04 957 is also one Tire mounting device has become known, which consists of a machine stand with drive unit, a drive spindle with a rim holder and one made of a widening and a There is a pressing roller assembled assembly tool. At this facility the tire is placed diagonally on the rim. The following is done using the assembly tool the tire is rolled into the rim, with both tire beads on small tires be rolled up at the same time.

In the case of very wide tires, this known device is initially used the lower tire bead with a widening and a pressing roller, which is attached to a upper arm are arranged, rolled up. After that, the upper swivel arm Swiveled to the side or completely removed, so that subsequently then also the upper tire bead with the mounting tools attached to a lower swivel arm are attached, can be rolled into the disc wheel.

In this known device, two swivel arms are necessary, complete assembly is only achieved after two full rotations.

The object of the invention is now to be more simple and shorter Time to mount very wide tires.

This is achieved according to the invention in that on a mounting head two assembly tools and two additional assembly tools offset at an angle are arranged.

In an advantageous embodiment, the first two assembly tools designed as runners and the two rear mounting tools as rollers.

Another embodiment is on the two rear mounting tools a separate feed unit is provided, by means of which the assembly tools in the working position can be brought.

Furthermore, a control device can be provided that the Winding system, before it has made a full rotation, to a preset Amount raises and the rear assembly tools by means of a feed unit synchronously brings the same amount further to the clamped disc wheel.

The invention will now be explained in more detail using an exemplary embodiment.

They show: FIG. 1: a schematic partial view of a tire fitting system in starting position, with the winding head attached to the disk wheel already has approached.

FIG. 2: a plan view of part of a tire fitting system.

Figure 3: a view according to direction A, the lower and the upper Tire bead is rolled into the disc wheel.

The tire fitting system consists of a not shown in detail Conveyor with assembly carriage 20 on which the disk wheels 1 with known Clamping elements 2 can be clamped. The clamping elements can be horizontally be designed to be movable, so that this can also be easily adapted to the different disc wheel diameters can be customized. By means of a further feed conveyor, the tires 3 can be delivered to the Tire fitting system brought up and automatically on the clamped disc wheels be put on.

Since the entire system is known per se, a more detailed one was used Representation omitted. The actual assembly station consists of a machine frame 5 to which the aiming system 4 is attached. The winding system 4 is in bearings 6 guided and can be adjusted vertically by a feed unit 7. The guide bars 18 can be connected to the machine frame 5 via a cross member 19. The winding system 4 has a winding head 8 which is rotatably mounted in two bearings 9 and 10. The rotation of the winding head 8 around the spanned disks wheel 1 is carried out by means of of the drive unit 11. I) When the adjustment device 12 is actuated, the winding head 8 can be preset to the different disc wheel diameters. l) ie one step can also be done automatically if the disc wheels are in the so-called Mixl) etriel) be scanned by means of a suitable device.

According to the invention, two mounting tools 13 are attached to the mounting head 8 uiid 14 and around the Wit0kel cL veret'zt two further assembly tools 15 and 16 arranged one behind the other. The two front mounting tools 13 and 14 can be designed as runners, the first runner 13 over the lower tire bead the disc wheel horn presses and the rear runner 14 presses the tire bead holds down. The rear mounting tools 15 and 16 can preferably be used as rollers are carried out, the first roller 15 also over the upper tire bead the disc wheel horn rolls and the rear roller 16 rolls the rolled up tire bead holds down. The second mounting tools 15 and 16 can additionally by a separate feed unit 17 can be adjusted vertically. But it can also be a swivel device be provided, by means of which the assembly tools are brought into the working position from the outside can be.

The assembly of a tire 3, pushed onto the associated disc wheel 1 as follows.

After the disc wheel 1 clamped on the assembly carriage 20 with When the tire 3 is placed on top of the assembly station, the mounting system moves 4 down until the ironing tools 13 and 14 almost rest on the disc wheel 1. The feed movement is controlled by means of a separate scanning device, the but is not shown in detail. The two rear assembly tools 15 and 16 are in the starting position, i.e. H. these are still swiveled out of the work area.

After the mounting head 8 around the angle # around the disk wheel 1 is driven around the lier, the rear mounting tools 15 and 16 by means of the Feed unit 17 moved down or pivoted and brought into working position. The rioning process is now continued, with the first assembly tools 13 and 14 the lower tire bead and the subsequent mounting tools 15 and 16 den Tighten the upper tire bead.

At Sclll.lucllleiferl, the pulling head 8 is preferred it has driven around completely uni the disk wheel 1, by means of the feed unit 7 University increased by a presettable amount and synchronized the rear mounting tools 15 and 16 by means of the feed unit 17 around the same Amount moved down or swiveled lower.

This prevents possible damage to the valves from the front Mounting skids 13 and 14 avoided. Due to the runner-shaped design of the front Assembly tools 13 and 14 can move these upwards without problems after assembly be driven without the risk of the upper tire bead on the tools Keeps hanging.

The entire assembly process takes a single turn of the mounting head 8 completed because it has been shown that the assembly tools are not complete have to be guided around the disc wheel, since the tire bead has already been removed slips over the disc wheel horn.

The mounting system 4 is after the assembly process by the feed unit 7 moved all the way back to the starting position, so that the assembly carriage 20 is further conveyed and the next assembly trolley with a mounted disc wheel and attached tire can be conveyed into the assembly station.

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Claims (4)

Patent claims: (6 1. 1. Device for mounting vehicle tires on disk wheels with a winding system with a rotating winding head and Pulling tools led around the disc wheel clamped on a holder is, characterized in that two mounting tools on a mounting head (8) (13, 14) and two further assembly tools (15, 16) offset at an angle one behind the other are arranged. 2. Apparatus according to claim 1; characterized in that the first two assembly tools (13, 14) as runners and the two rear assembly tools (15, 16) are designed as rollers. 3. Apparatus according to claim 1, characterized in that the two rear mounting tools (15, 16) a separate feed unit (17) is provided is, by means of which the assembly tools (15; 16) are brought into working position can. 4. Apparatus according to claim 1, characterized in that a Control device is provided that the winding system (4) before this a full Rotation has been carried out, and raises the rear by a presettable amount Assembly tools (15, 16) by means of a feed unit (17) by the same amount synchronously down to the disk wheel (1).