DD224553B1 - ARRANGEMENT FOR STORING AND LOCKING OF TILTING DRIVER HOUSES ON MOTOR VEHICLES - Google Patents

Description

For this 1 page drawing

Field of application of the invention

Field of application of the invention is the automotive engineering objects of the application are Kippfahrerhauser of commercial vehicles

Characteristic of the known technical solutions

There are storage and locking devices are known in which spacers are arranged, which in addition to the inner surface of the lower swing member and the outer end face of the rubber metal spring also still abuts the outer end face of the outer sleeve of the rubber metal spring and the inner diameter of such a solution is described in DD patent 156322 Although ensures a good leadership of the swing lower part, but has the disadvantage of a large body sound transmission, since the rubber metal spring is bridged by the spacer noise measure between the frame and cab side storage elements

Object of the invention

The aim of the invention is largely to reduce a caused by the spacer body sound transmission and the associated negative impact on ride comfort

Explanation of the essence of the invention

The technical object of the invention is then to provide a specially trained element instead of the spacer, which has no connection with the outer sleeve of the rubber-metal spring, has the smallest possible contact surfaces in terms of Linienberuhrung, between the contact surfaces has an optimized air cushion and which continues to be a good leadership Moreover, the material economy should be cheaper than that of a full spacer according to the invention, the spacer located between the rubber-metal spring and the lower part of the swing arm is pot-shaped

The outer bearing surface has a transition radius which is in the region of the inner and outer radii, but preferably at the radial transition of the A direct connection to the outer sleeve of the rubber-metal spring does not exist and the cup-like design of the spacer element a linear contact surface is formed to the lower swing part, while on the outer bearing surface to the outer end side of the rubber metal spring through the transition radii of the rubber-metal spring itself and the Distanzeiementes also a line-like on location surface is achieved This causes, together with the formed by the dew-like shape air cushion between the two contact surfaces of the spacer element a minimum n Body shell transition, the main components of which are already removed by the rubber-metal spring. Due to the exact bearing on the inner bushing of the rubber-metal spring in connection with the two contact surfaces, a good guidance of the lower part of the swingarm is achieved via the spacer element. The large transition radius protects the rubber-metal spring and provides a favorable wear behavior Both elements a simple installation is guaranteed By the cup-like design of the spacer element much less material is needed than if this element had to be made fully

embodiment

The invention will be explained in more detail below using an exemplary embodiment and is shown in the FIGURE. At a storage and locking device with a mounted in a bearing block 9 via a bolt 10 rubber metal spring 1, on the inner sleeve 7 via a stop surface 8, the divided swing lower parts 4 are stored, in which ei η swing upper 5 is screwed with grid pin 6, a spacer element 3 used.

The spacer element 3 is located at a horizontal distance a between the outer end surface of the rubber metal spring 1 and the inner surface of the swing lower part 4 and is guided over a receiving bore 3d on the outer diameter d _{3 of} the inner sleeve 7 of the rubber-metal spring 1.

The outer diameter d _{2 of} the spacer element 3 is at a distance Δί + s circumferentially to the inner diameter di the outer sleeve 2 of the rubber metal spring 1, wherein Δί is the spring travel of the rubber metal spring 1 andthe safety factor against hard stop, with the following relationship:

d ₂ = d, - 2 (Af + s).

This ensures that there is no direct connection between outer sleeve 2 and spacer element 3 and a noise-side bridging of the rubber-metal spring 1 can not occur.

The spacer element 3 is pot-shaped and lies with the open contact surface 3 a on the inner surface of the swing lower part 4, while the closed outer contact surface 3 b has a circumferential ÜbergangsradiusR-i and rests against the end face of the rubber metal spring 1. The transition radius R ₁ is in the range of the inner and outer radii R ₂ and R ₃ , preferably at the outer radius outlet of the radius R _{3 of} the end face of the rubber-metal spring 1, so that results for both contact surfaces 3aund3beine almost linear contact. Between the two contact surfaces 3 a and 3 b of the pot-like trained distance em entes3 is a vertical free space 3 c (bubble). By I inienförm ig n contact surfaces 3a and 3b in conjunction with the insulating acting air cushion in the free space 3c a minimum structure-borne sound transmission between the rubber metal spring 1 and the lower part of the rocker 4 via the spacer element 3 is ensured.

Claims (1)

Invention claim: Arrangement for the storage and locking of tiltable cabs on motor vehicles, with a rocker and a rubber-metal spring bearing, as well as a spacer arranged between two, characterized in that the spacer element (3) is designed topfpfig and with his current randform to form bearing surface (3 a ) abuts the inner surface of the rubber lower spring (4) and its closed outer abutment surface (3b) on the end face of the rubber-metal spring (1), the outer abutment surface (3b) having a transition radius (R ₁ ) in the region of the inner and outer radii (R ₂ , R3), preferably at the outer Radienubergang the outer radius (R ₃ ) of the end face of the rubber-metal spring (1) is applied.