DK156039B - DOUBLE WHEEL FOR A VEHICLE - Google Patents

Abstract

1. A dual wheel for a vehicle, having a vehicle wheel rim (4) and an outer rim (1), a coupling device (20) between the rims (1, 4), a complete spacer ring (2) which is secured to the outer rim (1), a ring fastener (6) which is secured to the inner face of an indented reinforcing groove (7) and a plurality of tightening devices (3) which are detachably secured to the ring fastener (6), characterised in that the reinforcing groove (7) is provided on the spacer ring (2), that the tightening devices (3) each comprise a tightening hook (15) suspended in the ring fastener (6) and a tightening device (3) in the form of a toggle lever and that the tightening hooks (15) are supported on the spacer ring (2) with spacing from the reinforcing groove (7).

Description

DK 156039B

in

The invention relates to a double wheel of the type specified in the preamble of claim 1.

It is known to equip vehicles with double wheels, so that double wheels have in practice proved suitable for reducing the pressure against the ground, improving traction and increasing the ability to pass slopes. The known coupling devices for joining the two wheel rims on the two single wheels usually consist of a flange-like screw with 10 radially extending arms, which are secured by means of locks to a T-ring welded to the wheel or welded into the double wheel. rim channel (Felgentiefbett). The T-rings are hereby welded to the flange in the rim. The locks are hung on the upper plane of the T-ring.

15

These coupling devices have the disadvantage that in the case of large vehicles, the flange of the T-ring is bent as a result of the heavy load and that the attachment of the outer wheel to the vehicle wheel can only take place at certain coupling positions.

20

From US Patent No. 3,3337,270, a double wheel is known which comprises several clamping screws which are attached at one end to the vehicle wheel rim and at the other end to the outer rim. The outer rim has an attachment ring which is welded to the inner surface of a groove and to which the clamping screws are attached. For mounting, tighten the screws individually by means of nuts.

From British Patent Application No. 2,031,351, a double-30 wheel with clamping devices is known which are attached to the two rims. Here, the clamping devices are knee arm locks which are fastened to a tube welded to the outer rim. For interconnection with the tube, the clamping devices must first be inserted into a slot in the tube, which appears to be time-consuming.

Finally, from U.S. Patent No. 4,030,753, a double wheel is known which, instead of a whole spacer ring, has several plates.

DK 156039B

there which is welded to the outer rim. On these plates, a ring is welded which stabilizes the plates and has bores for receiving tensioning screws. For mounting, tighten the screws using nuts.

Here, too, the outer wheel can only be engaged in certain interconnection paths.

The object of the invention is to provide a double wheel of the type mentioned at the outset, which does not have these disadvantages, and which, nevertheless, can be manufactured at low cost.

This is achieved by means of the features of claim 1. Further advantageous embodiments are apparent from the following subclaims.

15

The double wheel according to the invention has the advantage that the outer wheel can be coupled to the vehicle wheel in any position, so that even heavy wheels can be mounted easily.

20

A further advantage lies in the fact that the clamping devices can be designed very short, which causes the spacer to rotate very little with the outer wheel against the vehicle wheel, as the clamping devices, which in this process describe a correspondingly smaller radius, differ more rapidly from the tangent. fixing ring. This circumstance also brings greater stability.

The invention is described below with reference to the drawing, which in the form of a single figure shows a section in radial direction through a double wheel with coupling.

The double wheel shown in the figure consists of an outer rim 1 in which a shoulder 12 is welded to a spacer ring 2 by means of a welding location 9. Several axially extending detachable clamping devices 3 distributed along the circumference attach the outer rim 1 to the vehicle wheel rim 4. Clamping devices 3 is hung on the vehicle side in annular nuts 5 or weld 3

DK 156039B

brackets connected to the wheel washer and on the outer wheel side fixed in a fastening ring S. This fastening ring 6 is welded to a reinforcing groove 7 on the spacer ring 2 by means of a welding seam 8 that one side of the fastening ring 6 protrudes and forms a free space relative to the spacer ring 2 so that the clamping devices 3 can be secured to the fastening ring 6 by means of clamping hooks 15. As a result of the fastening ring 6 being welded by an endless welding, the clamping devices 3 can be hung 10 on any place. The outer wheel can hereby be fixed to the vehicle wheel in any position, since the clamping devices 3 can be secured to the fastening fixtures in the position radially located next to the annular nuts 5. Even very heavy double wheels can thereby cause trouble. attaches as no carrier lugs are required anymore. Since there are no knobs for the transmission of radial forces on the vehicle side, the spacer ring 2 is rotated with respect to the vehicle wheel while driving with load. As a result, the clamping devices 3 pull the outer wheel even more firmly 20 against the vehicle wheel via the spacer ring 2. By means of the described structure for hanging the clamping devices on the double wheel, a great rigidity is obtained. Since due to this special rigidity no drive knobs are required, even large double wheels are fitted, without the need to turn them into a clutch position,

The reinforcing groove 7, e.g. produced by rolling, serves as the attachment point of the attachment ring 6 and as a reinforcing element for the spacer ring 2. In the case of heavily loaded double wheels, several reinforcing bars 7 can be arranged on the spacer ring 7, which can bend outwards or inwards.

The number of clamping devices 3 can be adjusted to the expected load.

The spacer ring 2 is welded or screwed together with the outer rim 1. When driving with the vehicle, the outer wheel turns slightly

Claims (2)

1. Double wheels for a vehicle and with a vehicle wheel rim (4) and an outer rim (1), a coupling device (20) between these rims (1, 4), a complete spacer ring (2) fixed to the outer rim (1). , a fastening ring (6) secured to the inner surface of a reinforcing bar (7), and a plurality of clamping devices (3) removably fastened to the fastening ring (6), characterized in that the reinforcing bar (7) is arranged on the spacer ring that each clamping device (3) comprises a clamping hook (15) and a clamping member in the form of a knee arm, which is fixed to the securing ring (6) and that the clamping hooks (15) are arranged to support the spacer ring (2) in distance from the reinforcing groove (7). Double wheel according to Claim 1, characterized in that the clamping hooks (15) have within their support area an adjustable support (11) for adjusting the snap or overlap (10) of the clamping device. 30 35