Patent Application
20100252596
This invention relates to a truck mixer with at least one extension chute which for transport can be received on a holding means in a locked manner.
In the rear open region of their mixing drum, truck mixers have a discharge funnel below which a so-called swivel chute is arranged. This is a chute which is pivotally mounted to the truck mixer at the rear end of the vehicle. To extend this swivel chute arranged below the discharge funnel, one or more extension chutes are used. When unloading the drum contents of the truck mixer, the extension chute is hung into the end of the swivel chute. The extension chute can consist of several parts, which during transport usually are fixed on the rear fenders of the truck mixer. On the rear fenders, the extension chutes are retained on correspondingly provided chute supports. The chute supports are sheet metal strips firmly arranged on the rear fenders of the truck mixer, which partly are adapted to the outer shape of the extension chute, so that after correspondingly locking the same by a so-called chute holder, the extension chutes are firmly held in their position on the rear fenders.
This holding situation is shown in
For removing an extension chute 20, a number of working steps must now be performed:
1. First, the hook of the chute holder 24 must be lifted against the tension spring and must be deposited at the side.
2. For removal, the extension chute 20 must then be removed from the chute supports 22 and be rotated against the stop of the chute support in the chute support 22.
3. Thereafter, the extension chute must be removed from the chute support 22 by the operating personnel by a vertical upward movement.
4. For depositing the extension chute 20, these working steps must be performed in reverse order.
This handling of the extension chute is quite laborious. It should be considered that the mounting height of the chute support is dependent on the vehicle height and the fender attachment. This means that the chute support is located at a height of 1.30 m to 1.60 m. For supporting the chute on the fender, the operator must lift the extension chute with a weight of up to 20 kg to a height of 1.50 m to 1.80 m, so that he can position the extension chute in the extension chute holder. On a truck mixer, up to four extension chutes can now be supported on the fenders. For comparatively small or weaker operators, this means a considerable exertion.
Due to the open construction of the extension chute holder on the fender of the truck mixer, a high cleaning effort is necessary. In addition, the open construction of the chute support and chute holder on the fender is not optically appealing either.
Therefore, it is the object of the present invention to provide for an easier removal of the extension chutes from their transport position and an easier locking of the extension chutes in the transport position.
In accordance with the invention, this object is solved by a truck mixer with the features herein.
In a generic truck mixer with the features of the characterizing part of claim 1, a holding means for the extension chutes accordingly is provided, which can be swiveled rotatorily and/or translatorily between a transport position and a removal position. Via the rotatorily and/or translatorily movable holding means it thus becomes possible to move the extension chute from the transport position into a lower and hence comfortable removal position. As a result, it is possible to remove the extension chute at an ergonomic height.
Preferred aspects of the invention can be taken from the description herein.
Accordingly, the at least one holding means is guided in a guideway.
Advantageously, the holding means can be arranged on a rear fender of the truck mixer.
Particularly advantageously, the holding means can be moved and/or swiveled electrically, pneumatically or hydraulically. However, the holding means can of course also be moved by muscular power.
In accordance with a further advantageous aspect, each of the holding means arranged at a distance from each other has one extension chute each. The number of holding means here depends on the length of the respective extension chute.
In particular with regard to the optical appearance, but also with regard to the cleaning possibility it is advantageous when the holding means each consist of a section which is adapted to the shape of the extension chute to be received.
Furthermore, the holding means on one side can engage over the inserted extension chute by means of a hook-shaped protrusion, whereas the opposite side is locked by means of a manually releasable latching mechanism.
Further features, details and advantages of the invention will be explained in detail with reference to an embodiment illustrated in the drawing, in which:
For this purpose, the holding means 30 includes a swivel bolt 34 guidable in the guideway 32. Furthermore, additional bolts 36 are provided on the holding means, which can releasably be received in a bolt receptacle 38 movably arranged in the guideway. This releasable reception serves the purpose that the holding means 30 initially can translatorily be moved over a certain region in the guideway 32 (cf,
The bolt receptacle 38 can be formed in any desired way. It is only important that it can safely retain the bolts 36 in the guideway 32 during the translatory movement and will only release the same after reaching the end position as shown in
With reference to the sequence of representations shown in
In
In
As can be taken from the sequence of
For receiving the extension chute 20 in the holding means 30, the same have a hook-shaped protrusion 40 on the one side, whereas on the opposite side a non-illustrated locking mechanism is provided for locking the extension chute in the holding means 30.
| Number | Date | Country | Kind |
|---|---|---|---|
| UM202009004729.6 | Apr 2009 | DE | national |
