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EP-4735825-A1 - DEVICE FOR CHECKING THE CHASSIS GEOMETRY OF A CHAIN- OR BELT-DRIVEN VEHICLE

EP4735825A1EP 4735825 A1EP4735825 A1EP 4735825A1EP-4735825-A1

Abstract

The invention relates to a device for checking the chassis geometry of a chain- or belt-driven vehicle, the device comprising a housing and means for emitting a first laser beam, said means being disposed in the housing. In order to provide a device according to the preamble that makes it possible to easily and quickly check the chassis geometry, according to the invention the housing comprises means for securing the device on a chain or a belt of the chain- or belt-driven vehicle. According to the present invention, the device is supported by the drive element of the chain- or belt-driven vehicle, i.e. by the chain or the belt. The housing is preferably mounted near the sprocket or pulley. The first laser beam exits the (for example, cylindrical) housing at an end of the housing and runs along the top side of the chain or belt on which the housing is mounted.

Inventors

  • BAYER, REINER

Assignees

  • Bayer, Reiner

Dates

Publication Date
20260506
Application Date
20240902

Claims (8)

  1. 1. Device for checking the chassis geometry of a chain- or belt-driven vehicle, the device comprising a housing (1) and means arranged therein for emitting a first laser beam (2a), characterized in that the housing (1) comprises means (5) for securing the device on a chain (3a) or a belt (3b) of the chain- or belt-driven vehicle (9).
  2. 2. Device according to claim 1, characterized in that the means (5) for securing the device on a chain (3a) or a belt (3b) of the chain- or belt-driven vehicle (9) are designed as magnets which are arranged on or in the housing (1).
  3. 3. Device according to claim 1 or claim 2, characterized in that the means (5) for securing the device on a chain (3a) or a belt (3b9 of the chain- or belt-driven vehicle 8)0 are designed as a holding element (5b).
  4. 4. Device according to one of claims 1 to 3, characterized in that the means (5) for securing the device on a chain or a belt of the chain- or belt-driven vehicle are designed as a recess (5a) in the housing (1) into which the chain or belt wheel (4a/4b) engages.
  5. 5. Device according to claim 1, characterized in that the housing (1) is divided into two parts, wherein one part of the housing (1) can be mounted on one side of the chain or belt wheel (4a/4b) and the two parts of the housing (1) can be connected to one another, wherein the connecting means simultaneously serve as means (5) for securing the device on a chain (3a) or a belt (3b) of the chain- or belt-driven vehicle (9).
  6. 6. Device according to one of claims 1 to 4, characterized in that that the device has means (6) for adjusting the chain tension.
  7. 7. Device according to claim 5, characterized in that the device has an L-shaped bracket (6a) on each side of the chain wheel (4a), the brackets (6a) extending in the assembled state from above the teeth of the chain wheel (4a) to below the chain (3a) and being connectable to one another below the chain (3a), and a rotatable adjusting screw (6b) for adjusting the chain tension being arranged in the region of the connection of the brackets (6a).
  8. 8. Device according to one of claims 1 to 6, characterized in that an attachment (7) is provided which can be connected to the means (6) for adjusting the chain tension and has the means for emitting a second laser beam (2b).

Description

DESCRIPTION Device for checking the chassis geometry of a chain- or belt-driven vehicle The invention relates to a device for controlling the chassis geometry of a chain- or belt-driven vehicle, wherein the device comprises a housing and means arranged therein for emitting a first laser beam. EP 1 537 379 B1 describes a method and device for checking the chassis geometry of a chain- or belt-driven vehicle. Without disassembling any parts of the vehicle, the chain or belt alignment is determined using a laser module that is applied to the side surface of the chain wheel or pulley, with its laser beam directed at the edge area of the chain or belt. The flat outer area of the laser module is placed against the flat side surface of the sprocket or pulley, so that the laser beam is directed onto the edge of the chain or belt. If the chain or belt is properly aligned, a series of laser points is created on the edge of the belt or chain over a large distance with a consistent edge distance. However, wheel alignment checks using such a laser line are only possible after prior testing of the secondary drive. The axle position of the drive wheel must be aligned exactly at an angle of 90° to the direction of travel. In modern vehicles and with the use of lightweight components, the installation of secondary drive measuring devices is becoming increasingly difficult and requires the time-consuming disassembly of vehicle components. Magnetic mounts are unsuitable for modern lightweight components such as aluminum, magnesium and carbon parts. The object of the present invention is to provide a device according to the preamble which enables a simple and quick control of the chassis geometry. This object is achieved according to the invention in that the housing has means for securing the device on a chain or a belt of the chain- or belt-driven vehicle. According to the present invention, the device is carried by the drive element of the chain- or belt-driven vehicle, i.e., the chain or belt. It is preferably mounted near the chain or belt pulley. The first laser beam exits the (e.g., cylindrical) housing at one end of the housing and travels along the top surface of the chain or belt onto which the housing is mounted. To protect against falling, the means for securing the device on a chain or belt of the chain- or belt-driven vehicle are used. In addition to the fact that no disassembly of parts of the vehicle is required, the invention has the further advantage that the user has both hands available for adjustment work on the chain or belt-driven vehicle. According to one embodiment of the present invention, the means for securing the device on a chain or belt of the chain- or belt-driven vehicle are designed as magnets which are arranged on or in the housing. The magnetic force acts on the mass of the steel chain pins, making the device suitable for vehicles with non-magnetic sprockets. An alternative embodiment of the present invention consists in that the means for securing the device on a chain or a belt of the chain- or belt-driven vehicle are designed as a holding element for positively or non-positively fastening the device on a chain or a belt of the chain- or belt-driven vehicle. The holding element can, for example, be designed as a clamp. A further embodiment of the invention consists in that the means for securing the device on a chain or belt of the chain- or belt-driven vehicle are designed as a recess in the housing into which the chain or belt wheel engages. The device is then placed on the chain or belt in the area of the chain or belt wheel and pushed towards the chain or belt wheel until the chain or belt wheel engages in the recess of the housing and thus secures the device. Using such a holding element, the device can also be secured on non-magnetic chains or belts. Of course, it is also possible for the device to have several of the above-described means for securing the device on a chain or belt, which can be combined with one another as desired. A further embodiment of the invention consists in that the housing is divided into two parts, wherein one part of the housing can be mounted on one side of the chain or belt wheel and the two parts of the housing can be connected to one another, wherein the connecting means simultaneously serve as a means for securing the device on a chain or belt of the chain- or belt-driven vehicle. A preferred development of the invention is that the device has means for adjusting the chain tension. Preferably, the device has an L-shaped bracket on each side of the chain wheel, wherein the brackets extend in the assembled state from above the teeth of the chain wheel to below the chain and can be connected to one another below the chain, and wherein a rotatable adjusting screw for adjusting the chain tension is arranged in the region of the connection of the brackets. This adjusting screw can be used to adjust the chain tension (or the desired chain slack) of a chain