JPH0118429Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a new headlamp mounting device, and more specifically, the control of a so-called leveling mechanism that allows remote control of the irradiation angle of the headlight each time the vehicle is used, either manually or automatically. This is a headlamp mounting device equipped with a terminal, which can combine the initial aiming mechanism that is essential for the headlamp mounting device and the above-mentioned leveling device with a simple member and a compact shape. It is an object of the present invention to provide a novel headlamp mounting device in which the adjusting members in the mechanism can be adjusted separately through one movable member, and which also enables smooth leveling adjustment.

BACKGROUND ART In a headlamp for a vehicle, particularly for an automobile, it is necessary to obtain a light distribution in which the irradiation beam always has appropriate directivity and does not interfere with the safety of the driver of the vehicle and surrounding traffic. is important, and for this reason,
2. Description of the Related Art Vehicle headlamps are designed to improve the radiation directivity and to strictly control the radiation angle using a mounting device. The first stage of adjusting the irradiation angle is called initial aiming.
This is so that, for example, after installing the headlights on the vehicle body at a vehicle assembly plant or during periodic inspections, it is possible to obtain an irradiation angle that provides ideal light distribution under certain conditions. This adjusts the mounting angle of the headlight relative to the vehicle body. The certain condition is generally a no-load state (no one on board or a state where only one driver is on board). In addition, the second stage adjustment of the irradiation angle is as follows:
This is called leveling, which is performed every time a vehicle is used.When a vehicle is loaded with people or luggage, the suspension mechanism causes the front and rear of the vehicle to rise and fall due to the load. However, as a result of this, the irradiation angle of the headlight changes up and down, so the irradiation angle of the headlight is adjusted each time it is used. Therefore, this leveling adjustment mechanism is either automatically adjusted by measuring the inclination of the vehicle body, or it can be easily adjusted remotely using a leveling operation section installed on the operation panel in front of the driver's seat. A structure that can be operated is required, and a hydraulically controlled type, a motor controlled type, etc. are used as a power transmission mechanism for this remote control.

Problems to be Solved by the Invention However, when the initial aiming mechanism and the leveling mechanism are related to the headlamp, the mechanism of the adjusting member becomes extremely complicated. This is because, as mentioned above, although the initial aiming mechanism and the leveling mechanism are adjusted to a common component, the headlight, they are adjusted at completely different times and under different conditions. Therefore, for example, if a leveling mechanism is integrated with the aiming mechanism, the ideal irradiation angle obtained by initial aiming will be lost due to leveling, and in order to prevent this, A separate mechanism is required to temporarily lock the initial aiming adjustment state, and
If both mechanisms are equipped with completely separate mechanisms,
This is because it becomes extremely large and the number of parts increases. Furthermore, since modern automobiles have an extremely wide variety of mechanisms mounted in their engine compartments, it is difficult to practically adopt a structure in which the headlamp mounting device occupies a large amount of space.

Means for Solving the Problems The present invention is an attempt to solve the various problems in the headlight mounting device as described above. A new headlamp mounting device that can be equipped with both mechanisms, and that allows the adjusting members of both mechanisms to be adjusted individually via one movable member, as well as smooth leveling adjustment. A headlamp in which the holding member of the headlamp unit is attached to the vehicle body or a base member fixed to the vehicle body so as to be adjustable in angle, so that the direction of illumination of the headlight relative to the vehicle body can be changed. In the mounting device, the movable holding member is held on the vehicle body or a base member fixed to the vehicle body so that the angle can be adjusted horizontally and in the vertical direction, and the movable holding member is held on both sides above the side wall portion of the holding member of the headlamp unit. Drill insertion holes at corresponding positions on both sides of the upper peripheral wall of the headlight unit, fit resin nuts into the insertion holes of the holding member of the headlamp unit, and fit resin collars into the insertion holes of the movable holding member. The retaining member of the headlamp unit is secured by inserting the bolt through the collar and bringing the inner end into contact with the nut, and inserting the bolt from the outside of the peripheral wall of the movable retaining member into the collar and screwing it into the nut. is pivotally supported to be rotatable in the vertical direction relative to a movable holding member, and an operating terminal of the leveling device is fixedly attached to a part of the movable holding member, and the movable member of the operating terminal is connected to the headlamp unit. The present invention is characterized in that the holding member of the headlamp unit is held with respect to the movable holding member so as to be adjustable in angle by being connected to the lower part of the holding member.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Details of the headlamp mounting device of the present invention will be described below with reference to embodiments shown in the accompanying drawings.

Embodiment 1 FIGS. 1 and 4 show an example of the implementation of the headlamp mounting device of the present invention. The main components of the headlamp mounting device in this embodiment are a sub-mounting ring as a holding member that holds the headlamp unit fixedly by an appropriate means, and an angle adjustment mechanism for adjusting the angle of the holding member of the headlamp unit. A mounting ring as a movable holding member that holds the headlamp unit freely; a housing that serves as a base member that holds the movable holding member in a locking type manner so that the angle can be adjusted freely; It consists of an operation terminal of a leveling mechanism that rotates in the vertical direction with respect to the holding member. Since the lens of the headlamp unit in this embodiment has a rectangular front shape, the front shapes of each of the above-mentioned members are also approximately rectangular accordingly.

HL is a headlamp unit such as a headlamp, and a lens 2 is attached to the front opening of a reflecting mirror 1, and the area defined by the reflecting mirror 1 and the lens 2 is such that the reflecting mirror 1 inside the lamp chamber is Light source on the optical axis (not shown)
A mounting flange 3 is formed at the joint periphery of the reflecting mirror 1 and the lens 2, and locating bosses 4, 4 are formed rearward from the four corners of the back surface of the flange 3.
...is formed protrudingly.

Reference numeral 5 designates a sub-mounting ring as a member for holding the headlamp unit HL in this embodiment. This sub-mounting ring 5 includes a bottom plate part 7 having a large opening 6 for allowing the reflector 1 of the headlamp unit HL to protrude rearward, and a flange part 8 formed on the front periphery so as to protrude outward. , consists of a side wall part 9 between the bottom plate part 7 and the flange part 8, and the upper and lower edges of the flange part 8 have coupling pieces 11, 11, . . . formed with screw holes 10, 10, . Protrudes upward and downward, and
Horizontally extending insertion holes 12 and 13 are formed on both upper and lower sides of the side wall portion 9, and an operating leg 14 is provided at the center of the lower edge of the flange portion 8 to project downward. This operating leg 14 is provided with a connecting hole 15 to which an operating element of a leveling operation terminal, which will be described later, is connected with a screw or the like.

Reference numeral 16 is called a retaining ring, and serves as a reinforcing member for holding the headlamp unit HL on the sub-mounting ring 5. This retaining ring 16 is approximately in the shape of a picture frame, and has a large opening 17 on its front edge for allowing the lens 2 of the headlamp unit HL to face forward, and a bent locking edge 18. , the upper and lower edges of the locking edge 18 are provided with screw holes 10, 1 drilled in the coupling pieces 11, 11, . . . of the sub-mounting ring 5.
Screw insertion holes 1 at the positions corresponding to 0, ...
9, 19, ... are formed on the connecting pieces 20, 20,
...is installed protrudingly.

The tips of the locating bosses 4, 4, . each coupling piece 20 of the retaining ring 16,
Each screw insertion hole 19,1 drilled in 20,...
9, . . . and insert the connecting screws 21, 21, . . . into the connecting pieces 11, 11, .
By screwing into the screw holes 10, 10, . . . , the headlamp unit HL is fixedly held on the sub-mounting ring 5.

Reference numeral 22 denotes a mounting ring as a movable holding member that holds the holding member of the headlamp unit in this embodiment so as to be able to adjust the angle freely.This mounting ring 22 has a bowl-like shape with a hole in the bottom. Eggplant. That is, as seen in FIG. 2, the peripheral wall portion 23 that receives the sub-mounting ring 5 almost completely has a large opening 24 at the front thereof, and the opening 24 gradually narrows toward an opening 25 at the rear bottom. A curved surface, specifically a curved surface whose cross section forms part of a spherical surface with a constant curvature, and an outer circumferential surface 2 forming a curved surface.
6 has several small protrusions 27, 2 along the curved surface.
7,... are formed. And front opening 2
Leg pieces 30 and 31 protrude from the center of the upper edge and the center of one side edge of 4 and have holes 28 and 29 through which adjusting screws, which will be described later, are inserted. The hole 28 in the leg piece 30 on the upper edge and the hole 29 in the leg piece 31 on the side edge are located on one orthogonal axis passing through the center of the mounting ring 22, and are located at one corner of the front opening deviating from this orthogonal axis. A locking hole 32 is formed in which locks a locking claw of a spring, which will be described later. Further, in the upper both sides of the peripheral wall portion 23, insertion holes 33 and 34 are opened correspondingly in the horizontal direction.
A bracket 35 is provided to protrude downward from the center of the lower surface of the peripheral wall portion 23.

The above-described sub-mounting ring 5 is held at three points on the mounting ring 22 so as to be able to adjust its angle. One of the three points of support is supported by an operation terminal of a leveling mechanism, which will be described later, and the other two points are supported by leveling fulcrum rods, which will be described later.

36 is an operating terminal for the leveling mechanism;
In this embodiment, a hydraulic type, such as a hydraulic type, is shown. As shown in detail in FIG. 4, this operation terminal has a cylinder 37, a piston 38, and an actuator 39. Although not shown, the cylinder 37 is connected to an automatic or manual operation section provided on the vehicle body and an oil hose. The piston 3 is pressure-coupled, and the piston 3
8 moves forward or backward. This operation terminal 36 is fixedly attached to the bracket 35 of the mounting ring 22 with a protrusion 40 as appropriate, and an actuator 39 protruding from the tip of the piston 38 via a ball joint 41 is attached to the sub-mounting ring. The operating leg 14 of No. 5 is bored and connected to the connecting hole 15 with a screw 42.

On the other hand, reference numerals 43, 44, 45, and 46 indicate the members constituting the leveling fulcrum, and as shown in detail in Figure 3, 43 is a bolt that becomes a leveling fulcrum, and 44 is a resin A washer, 45 is a resin collar, 46 is a resin nut, and the insertion holes 12 and 13 are formed on both sides of the side wall of the sub-mounting ring 5, and the insertion holes 12 and 13 are formed on both sides of the peripheral wall of the mounting ring 22. Insertion hole 3
3 and 34 respectively, a collar 45 is interposed between the corresponding ones, and nuts 46 are fixed in the insertion holes 12 and 13 of the sub-mounting ring.
In this manner, the bolt 43 is inserted from the outside of the peripheral wall of the mounting ring through the collar 45 and screwed into the nut 46. Although only one leveling fulcrum is shown in FIG. 3, it goes without saying that such fulcrums may be provided on both sides of the sub-mounting ring and the mounting ring.

In this way, the sub-mounting ring 5, that is, the holding member of the headlamp unit HL, is pivotally supported at two points on both sides in the horizontal direction with respect to the mounting ring 22, that is, the movable holding member, so that it can rotate vertically, and By being connected to the operating terminal of the leveling mechanism at one point below so that it can move forward and backward,
The angle can be adjusted freely.

Reference numeral 47 denotes a housing as a base member in this embodiment, and the mounting ring 22 is held with respect to this housing 47 so as to be adjustable in angle. This housing 47 is shaped like a dish with an open bottom. That is, the peripheral wall part 48 that receives the mounting ring 22 has a front opening 49 and a bottom opening 50 that allows the bottom of the headlamp unit HL to face rearward, and the peripheral wall part 48 has an inner surface on both sides. Step portions 51, 51 are formed to protrude inward, and an upper edge leg piece 30 of the mounting ring is provided at the center of the upper edge of the front opening 49.
A leg piece 53 with a hole 52 bored therein at a position corresponding to the front opening 49 is provided protrudingly, and a side edge leg piece of the mounting ring is also provided at the center of a mounting flange portion 54 formed on one side of the front opening 49. A hole 55 is formed at a position corresponding to 31, and a spring locking hole 56 is formed at one corner of the front opening 49 at a position corresponding to spring locking hole 32 formed in the mounting ring. ing. 57, 57,...
is an insertion hole for inserting a bolt for fixing this housing 47 to the vehicle body frame.

Then, the adjusting screw 58 is inserted into the adjusting screw insertion holes 28 and 29 of the mounting ring 22 and the adjusting screw insertion holes 52 and 55 of the housing 47. That is, the head of the adjusting screw 58 is locked to the leg pieces 30 and 31 of the mounting ring 22, and the tip thereof is inserted into the hole 5 for inserting the adjusting screw in the housing.
It is screwed into a self-locking type nut 59 made of resin, for example, which is fixed to 2 and 55. Furthermore, the mounting ring 22 and the housing 47
The locking claws 61, 61 on both sides of the tension coil spring 60 are respectively locked between the spring locking holes 32 and 56 formed at one corner of the front opening of each of the tension coil springs 60, and the tension coil spring 60 is suspended.

In this way, the mounting ring 22 as a movable holding member has its outer circumferential surface 26, especially the protrusions 2
7, 27, . It is held by the staying screws 58 and 58 so that the angle can be adjusted freely.

In the headlamp mounting device formed as described above, the mounting ring 22 can be fixed by screwing the adjusting screws 58 and 58 into the nuts 59 and 59 and by unscrewing them. , its outer peripheral surface 26 is connected to the housing 47
The angle can be freely adjusted horizontally and vertically with respect to the housing 47 while finely sliding while resiliently abutting against the step portions 51, 51 of the housing 47. This adjustment is mainly done during the initial aiming mentioned at the beginning. In other words, after installing this headlamp mounting device on the vehicle body, the headlamp unit
When the HL is turned on and trial irradiation is performed, the directivity of the irradiation beam is VH as shown in the light distribution 62 shown in Figure 5.
If it is not at the desired position with respect to the line, adjust the illumination directivity by operating the adjusting screws 58, 58 as described above to obtain a proper light distribution 63.

Also, operate the leveling mechanism and use its operating terminal 3.
By adjusting the hydraulic pressure in the cylinder 37 of 6, the piston 3
8 is moved forward or backward, the sub-mounting ring 5 is moved to the leveling fulcrum parts on both sides of the sub-mounting ring 5,
Specifically, the angle can be adjusted in the vertical direction using the bolt 43 as a fulcrum rod as a rotation fulcrum. This adjustment is mainly carried out manually or automatically at any time during leveling. As shown in the light distribution 64 shown in FIG. 2, if the irradiation is far above the line H-H, the angle of the sub-mounting ring 5 can be changed downward by moving the actuator 39 back toward the cylinder. Proper light distribution65
Adjust the irradiation directivity to obtain

Effects As is clear from the above description, the headlamp mounting device of the present invention holds the holding member of the headlamp unit with respect to the movable member in a freely adjustable angle, and furthermore, the movable holding member is attached to the vehicle body or the vehicle body. Since it is held in a fixed base member in a so-called locking type support manner so that the angle can be adjusted freely, initial aiming and leveling can be adjusted separately through one movable member. The ideal irradiation directivity adjusted by the initial aiming will not be lost.

On the other hand, the leveling mechanism can be related to the headlamp unit by simply attaching its operating terminal to a semi-fixed movable member and connecting the actuator to the holding member of the headlamp unit. , its structure can be extremely simple and compact.

Furthermore, since a resin nut and collar are used for the leveling fulcrum, conventionally this kind of fulcrum would become unrotatable or loose due to rust or loosening. This eliminates the inconvenience caused by the conventional method, and allows smooth leveling adjustment at all times.

[Brief explanation of the drawing]

1 to 4 show an example of the implementation of the headlamp mounting device of the present invention, in which FIG. 1 is an exploded perspective view of the whole, FIG. 2 is a partially cutaway bottom view, Third
The figure is a cross-sectional view of the main part showing the leveling fulcrum part.
The figure is a side view with the center of the headlamp unit cut out and showing only the longitudinally cut end surfaces of other parts, Figure 5 is a light distribution diagram for explaining aiming adjustment, and Figure 6 is a
FIG. 4 is a light distribution diagram for explaining leveling adjustment. Explanation of symbols, HL...Headlight unit, 5...
Holding member of headlamp unit, side wall portion of 9...5,
12...Insertion hole, 22...Movable holding member, 23...
... Peripheral wall portion of 22, 33 ... Insertion hole, 36 ... Operation terminal, 38 ... Moving member, 43 ... Bolt, 45
... Resin collar, 46 ... Resin nut, 47
...Base member.

Claims (1)

[Scope of Claim for Utility Model Registration] A headlamp in which the holding member of the headlamp unit is attached to the vehicle body or a base member fixed to the vehicle body so that the angle can be adjusted freely, so that the irradiation direction of the headlight can be changed with respect to the vehicle body. In the light mounting device, the movable holding member is held on the vehicle body or a base member fixed to the vehicle body so as to be adjustable horizontally and vertically, while the movable holding member is held on both sides above the side wall portion of the holding member of the headlamp unit and on the movable holding member. Drill insertion holes at corresponding positions on both sides of the upper peripheral wall of the headlight unit, fit resin nuts into the insertion holes of the holding member of the headlamp unit, and fit resin collars into the insertion holes of the movable holding member. The retaining member of the headlamp unit is secured by inserting the bolt through the collar and bringing the inner end into contact with the nut, and inserting the bolt from the outside of the peripheral wall of the movable retaining member into the collar and screwing it into the nut. is pivotally supported to be rotatable in the vertical direction relative to a movable holding member, and an operating terminal of the leveling device is fixedly attached to a part of the movable holding member, and the movable member of the operating terminal is connected to the headlamp unit. A headlamp mounting device characterized in that the holding member of the headlamp unit is held with respect to the movable holding member so as to be adjustable in angle by being connected to the lower part of the holding member.