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EP-4735300-A1 - ANGLE ADJUSTMENT MECHANISM, LIGHTING ASSEMBLY AND MOTOR VEHICLE

EP4735300A1EP 4735300 A1EP4735300 A1EP 4735300A1EP-4735300-A1

Abstract

The present invention provides an angle adjustment mechanism, which is configured to cause a mechanism to be adjusted (100) to rotate around a hinge axis, comprising an adjustment threaded rod (200) and an adjustment nut (300), the adjustment nut (300) being sleeved on the threaded rod (200), and the two being engaged by means of threads, such that rotational motion of the adjustment threaded rod (200) is converted into translational motion of the adjustment nut (300), wherein a hole-shaft fit (112, 320) is formed between the adjustment nut (300) and the mechanism to be adjusted (100) such that the translational motion of the adjustment nut (300) drives the mechanism to be adjusted (100) to rotate around the hinge axis, and wherein a clearance exists between the shaft (320) and the hole (112) such that the shaft (320) and the hole (112) can move relative to each other during the rotation of the mechanism to be adjusted (100) around the hinge axis.

Inventors

  • LI, Jingwen
  • MAI, Zhiwei
  • CHEN, WEIJIAN

Assignees

  • Valeo Vision

Dates

Publication Date
20260506
Application Date
20240628

Claims (13)

  1. An angle adjustment mechanism, which is configured to cause a mechanism to be adjusted (100) to rotate around a hinge axis, characterized in that, comprising an adjustment threaded rod (200) and an adjustment nut (300), the adjustment nut (300) being sleeved on the adjustment threaded rod (200), and the two being engaged by means of threads, such that rotational motion of the adjustment threaded rod (200) is converted into translational motion of the adjustment nut (300); a hole-shaft fit is formed between the adjustment nut (300) and the mechanism to be adjusted(100) , such that the translational motion of the adjustment nut (300) drives the mechanism to be adjusted (100) to rotate around the hinge axis, and a clearance exists between the shaft (320) and the hole (112), such that during the rotation of the mechanism to be adjusted (100) around the hinge axis, the shaft (320) and the hole (112) are able to move relative to each other.
  2. The angle adjustment mechanism according to Claim 1, characterized in that the shaft (320) is approximately tangential to the hole (112) in one direction, and this direction is transverse to the direction of relative movement.
  3. The angle adjustment mechanism according to Claim 1, characterized in that a dimension of the hole (112) in the direction of relative movement is related to a rotatable angle range of the mechanism to be adjusted (100).
  4. The angle adjustment mechanism according to any one of Claims 1 to 3, characterized in that the adjustment nut (300) comprises an engaging part (310), the engaging part (310) being sleeved on the adjustment threaded rod (200), and a thread for engaging with the adjustment threaded rod (200) being formed on an inner surface of the engaging part (310), wherein one of the hole (112) and the shaft (320) is arranged on an outer peripheral face of the engaging part (310).
  5. The angle adjustment mechanism according to Claim 4, characterized in that a housing of the mechanism to be adjusted (100) comprises a base (110) for mounting the adjustment nut (300), the base (110) comprising two support arms (111) that extend opposite each other, and the other of the hole (112) and the shaft (320) is formed on each of the support arms (111).
  6. The angle adjustment mechanism according to Claim 4, characterized in that a gap (330) is formed in the engaging part (310) in a circumferential direction, such that the engaging part (310) can open at a maximum adjustment position of the adjustment threaded rod (200).
  7. The angle adjustment mechanism according to Claim 5 or 6, characterized in that a cross section of the shaft (320) is polygonal.
  8. The angle adjustment mechanism according to Claim 5 or 6, characterized in that the adjustment nut (300) further comprises a positioning part (350), the positioning part (350) being configured to be able to interfere with the housing of the mechanism to be adjusted (100), when the adjustment nut (300) rotating around the shaft (320) before the adjustment nut (300) is sleeved on the adjustment threaded rod (200).
  9. The angle adjustment mechanism according to Claim 8, characterized in that the adjustment nut (300) comprises a side plate (340) that extends from the engaging part (310), the positioning part (350) extending transversely on at least one side surface of the side plate (340); and the mechanism to be adjusted (100) comprises a slot-like structure (114) for accommodating the positioning part (350), two opposite side walls (115) of the slot-like structure (114) forming a stop part for the positioning part (350), to prevent the adjustment nut (300) from over-rotating around the shaft (320).
  10. The angle adjustment mechanism according to Claim 9, characterized in that two positioning parts (350) respectively extend transversely from two opposite side surfaces of the side plate (340), the housing of the mechanism to be adjusted (100) comprising two slot-like structures (114) respectively located at two opposite sides of the side plate (340), and a space for accommodating the side plate (340) being formed between the two slot-like structures (114).
  11. The angle adjustment mechanism according to Claim 9, characterized in that the size of the slot-like structure (114) is greater than the size of the positioning part (350), and is related to a magnitude of translational motion of the adjustment nut (300).
  12. Lighting assembly, characterized by comprising: a mechanism to be adjusted (100) that is configured as a light-emitting module; and the angle adjustment mechanism according to any one of Claims 1 to 11.
  13. Motor vehicle, characterized by comprising: the lighting assembly according to Claim 12; and a vehicle body (1), the mechanism to be adjusted (100) being hinged to the vehicle body (1), the vehicle body (1) comprising a transparent window for transmitting light from the mechanism to be adjusted (100), and a mounting base (11) for mounting the adjustment threaded rod (200) of the angle adjustment mechanism.

Description

Angle adjustment mechanism, lighting assembly and motor vehicle Embodiments of the present utility model relate generally to the field of lighting and/or signalling, and in particular to an angle adjustment mechanism, a lighting apparatus and a motor vehicle. Summary of the Utility Model DESCRIPTION OF THE DRAWINGS Since motor vehicles all each have different vehicle body attitude angles, when a lighting apparatus, such as a welcome lamp or a projection lamp, is mounted on a motor vehicle, it is always necessary to adjust a mounting angle of the lighting apparatus, to obtain a light pattern that is clear and/or at a suitable position. Existing angle adjustment mechanisms comprise an adjustment threaded rod and an adjustment nut, wherein the adjustment nut and a lighting module are integrally formed by means of a two-step injection moulding process; during the adjustment process, the adjustment threaded rod and the adjustment nut mesh by means of threads, and rotational motion of the adjustment threaded rod is converted into translational motion of the adjustment nut, thereby causing the lighting module to rotate around a hinge axis. However, since the adjustment nut and the lighting module form an integral whole, rotation of the lighting module causes the adjustment nut to be displaced in a horizontal direction, thereby causing interference between the adjustment nut and the adjustment threaded rod, causing the adjustment mechanism to jam or parts to fracture. One purpose of the present utility model is to solve or overcome at least one of the above and other problems and shortcomings in the prior art. According to one aspect of the present utility model, an angle adjustment mechanism is provided, which is configured to cause a mechanism to be adjusted to rotate around a hinge axis, the angle adjustment mechanism comprising an adjustment threaded rod and an adjustment nut, the adjustment nut being sleeved on the adjustment threaded rod, and the two being engaged by means of threads, such that rotational motion of the adjustment threaded rod is converted into translational motion of the adjustment nut; a hole-shaft fit is formed between the adjustment nut and the mechanism to be adjusted, such that the translational motion of the adjustment nut drives the mechanism to be adjusted to rotate around the hinge axis, and clearance exists between the shaft and the hole, such that during the rotation of the mechanism to be adjusted around the hinge axis, the shaft and the hole can move relative to each other. In some embodiments, the shaft is approximately tangential to the hole in one direction, and this direction is transverse to the direction of relative motion. In some embodiments, a dimension of the hole in the direction of relative motion is related to a rotatable angle range of the mechanism to be adjusted. In some embodiments, the adjustment nut comprises a engaging part, the engaging part being sleeved on the adjustment threaded rod, and a thread that is used for engaging with the adjustment threaded rod being formed on an inner surface of the engaging part, wherein one of the hole and the shaft is arranged on an outer peripheral face of the engaging part. In some embodiments, a housing of the mechanism to be adjusted comprises a base for mounting the adjustment nut, the base comprising two support arms that extend opposite each other, and the other of the hole and the shaft is formed on each of the support arms. In some embodiments, a gap is formed in the engaging part in a circumferential direction, such that the engaging part can open at a maximum adjustment position of the adjustment threaded rod. In some embodiments, the cross section of the shaft is polygonal. In some embodiments, the adjustment nut further comprises a positioning part, the positioning part being configured, when rotating around the shaft before the adjustment nut is sleeved on the adjustment threaded rod, to be able to interfere with the housing of the mechanism to be adjusted. In some embodiments, the adjustment nut comprises a side plate that extends from the engaging part, the positioning part extending transversely at at least one side surface of the side plate; and the mechanism to be adjusted comprises a slot-like structure for accommodating the positioning part, two opposite side walls of the slot-like structure forming a stop part for the positioning part, to prevent the adjustment nut from over-rotating around the shaft. In some embodiments, two said positioning parts respectively extend transversely from two opposite side surfaces of the side plate, the housing of the mechanism to be adjusted comprising two slot-like structures respectively located at two opposite sides of the side plate, and a space for accommodating the side plate being formed between the two slot-like structures. In some embodiments, the size of the slot-like structure is greater than the size of the positioning part, and is related to a magnitude of tr