JP7469950B2 - Vehicle parts and vehicle headlights - Google Patents

Description

The present invention relates to the technical field of vehicle parts used in optical axis adjustment mechanisms and vehicle headlamps having the same.

Some vehicle headlamps, for example, have a lamp unit with a light source etc. arranged inside a lamp housing that is made up of a cover and a lamp housing, and such vehicle headlamps are provided with an aiming adjustment mechanism that performs aiming adjustment, which is the initial adjustment of the direction of the light axis (see, for example, Patent Document 1).

The lamp unit is supported on the lamp housing via an aiming adjustment mechanism, and the lamp unit is rotated (tilted) relative to the lamp housing by the operation of the aiming adjustment mechanism.

Aiming adjustments are performed in two perpendicular directions by rotating the lamp unit vertically and horizontally relative to the lamp housing. Two adjusting screws extending in the front-to-rear direction are used for these vertical and horizontal aiming adjustments; rotating one adjusting screw around the axis rotates the lamp unit vertically, and rotating the other adjusting screw around the axis rotates the lamp unit horizontally.

Vehicle parts for performing aiming adjustments include various parts such as ball bearings (ball bearing members) and nut members, but some vehicle parts are connected by various means to a connecting part provided on the reflector of the lamp unit, which rotates (tilts) relative to the lamp housing.

One such connection method is to connect a vehicle part such as a ball bearing member to a connecting part by a bayonet connection (see, for example, Patent Document 2). The bayonet connection is performed by inserting multiple engagement protrusions (bayonet claws) into the grooves of a connecting hole formed in the connecting part, and rotating the vehicle part relative to the connecting part to engage the engagement protrusions with the connecting part.

JP 2007-55600 A Japanese Utility Model Application Publication No. 2-23236

However, in vehicle headlamps, as described above, the lamp unit is supported on the lamp housing via the aiming adjustment mechanism. If the connection state of the vehicle parts that make up the aiming adjustment mechanism to the connecting parts is unstable, rattling or the like is likely to occur in the connecting parts of the vehicle parts, and it becomes impossible to ensure a stable support state of the lamp unit to the lamp housing.

If the connection state of the aiming adjustment mechanism to the connecting part is unstable, there is a risk of problems such as unnecessary vibrations being generated in the vehicle headlamp or the preset light distribution pattern not being formed when the light is emitted from the light source of the lamp unit.

The vehicle component and vehicle headlamp of the present invention aim to ensure a stable connection state of the ball bearing member to the connecting portion of the lamp unit.

First, the vehicle part of the present invention comprises a nut member into which an adjusting screw that rotates relative to a lamp housing is screwed and which moves in a front-to-rear direction relative to the lamp housing depending on the rotation direction of the adjusting screw, and a ball bearing member that is connected to a connecting portion of a lamp unit that is rotatable relative to the lamp housing and is displaced relative to the nut member in accordance with the front-to-rear movement of the nut member, the ball bearing member is provided with an insertion portion that is inserted into a connecting hole formed in the connecting portion, and a pressing portion that protrudes outwardly from the outer circumferential surface of the insertion portion and is pressed against the opening edge of the connecting hole , and the ball bearing member is provided with a plurality of receiving portions positioned circumferentially spaced apart and an elastic deformation portion that is deformable in the front-to-rear direction in front of and behind the pressing portion, and the ball bearing member is connected to the connecting portion in a state in which the elastic deformation portion is elastically deformed and the connecting portion is clamped from the front and rear by the receiving portion and the elastic deformation portion .

As a result, the ball bearing member is connected to the connecting portion with the pressing portion formed on the insertion portion pressed against the connecting portion, and the ball bearing member is connected to the connecting portion with the elastically deformed elastic portion pressed against the connecting portion and the receiving portion and the elastically deformable portion sandwiching the connecting portion.

Secondly, in the vehicle component according to the present invention described above, it is preferable that the pressing portion is formed in a plurality of portions spaced apart in the circumferential direction.

This causes multiple pressing parts to be pressed against positions spaced apart circumferentially around the opening edge of the connecting hole.

In the vehicle component according to the present invention described above , it is preferable that the elastic deformation portion is formed in an annular shape.

This causes the elastically deformed elastic portion to be pressed against the entire periphery of the connecting hole, increasing the contact area of the elastic portion with the connecting portion.

In the vehicle component according to the present invention described above , it is preferable that an engagement recess is formed in the connecting portion, and an engagement protrusion is provided in the receiving portion, protruding toward the elastically deforming portion and inserted into the engagement recess.

As a result, when the receiving portion and the elastic deformation portion sandwich the connecting portion and the ball bearing member is connected to the connecting portion, the engaging protrusion is inserted into the engaging recess, so that when the ball bearing member is connected to the connecting portion, rotation of the ball bearing member relative to the connecting portion is restricted.

The vehicle headlamp of the present invention comprises a lamp housing having an opening on at least one side, a lamp unit having a connecting part with a connecting hole formed therein and rotatable relative to the lamp housing, an adjusting screw that rotates relative to the lamp housing, a nut member into which the adjusting screw is screwed and which moves in a front-to-rear direction relative to the lamp housing depending on the rotation direction of the adjusting screw, and a ball bearing member that is connected to the connecting part and displaced relative to the nut member in accordance with the front-to-rear movement of the nut member, wherein the ball bearing member is provided with an insertion part that is inserted into the connecting hole, and an abutment part that protrudes outwardly from the outer circumferential surface of the insertion part and is pressed against the opening edge of the connecting hole, and a plurality of receiving parts positioned circumferentially spaced apart and an elastic deformation part that is deformable in the front-to-rear direction are provided in front of and behind the abutment part of the ball bearing member, and the ball bearing member is connected to the connecting part in a state in which the elastic deformation part is elastically deformed and the connecting part is clamped from the front and rear by the receiving part and the elastic deformation part ,

As a result, the ball bearing member is connected to the connecting portion with the pressing portion formed on the insertion portion pressed against the connecting portion, and the ball bearing member is connected to the connecting portion with the elastically deformed elastic portion pressed against the connecting portion and the receiving portion and the elastically deformable portion sandwiching the connecting portion.

According to the present invention, the ball bearing member is connected to the connecting portion with the pressing portion formed on the insertion portion pressed against the connecting portion, preventing the ball bearing member from rattling against the connecting portion and ensuring a stable connection state of the ball bearing member to the connecting portion of the lamp unit.

2 to 11 show an embodiment of a vehicle part and a vehicle headlamp according to the present invention, and this figure is a cross-sectional view of the vehicle headlamp. FIG. 13 is a perspective view showing a connecting structure and a part of an adjusting screw together with a connecting portion. FIG. 2 is a perspective view showing a ball bearing member and a nut member in a separated state together with a connecting portion. 4 is a perspective view showing the ball bearing member and the nut member as viewed from a different direction than in FIG. 3 . 11 is a cross-sectional view showing a state in which the joint structure is connected to the connecting portion. FIG. FIG. 2 is a perspective view of the ball bearing member showing the first and second parts in an open state. FIG. 13 is a front view showing a state in which the ball bearing member is inserted into the connecting hole of the connecting portion from the rear. FIG. 13 is a cross-sectional view taken at a position where a protrusion of the ball bearing member is provided, showing a state in which the ball bearing member is inserted into a connecting hole of a connecting portion from behind. FIG. 13 is a front view showing a state in which the ball bearing member inserted into the connecting hole of the connecting portion is rotated and connected to the connecting portion. FIG. 13 is a cross-sectional view taken at a position where a protrusion of the ball bearing member is provided, showing a state in which the ball bearing member inserted into the connecting hole of the connecting portion is rotated and connected to the connecting portion. FIG.

Below, the vehicle part and vehicle headlamp of the present invention will be described with reference to the attached drawings.

The vehicle headlights 1 are mounted on both the left and right ends of the front end of the vehicle body.

The vehicle headlamp 1 comprises a lamp housing 2 with a recess that opens forward, and a cover 3 that closes the opening of the lamp housing 2 (see Figure 1). The lamp housing 2 and the cover 3 form a lamp housing 4, and the internal space of the lamp housing 4 is formed as a lamp chamber 5.

The lamp housing 2 is provided with a support protrusion 6, for example, extending from the upper surface portion 2a to the rear surface portion 2b. The support protrusion 6 is formed with a guide slit 6a that opens forward and extends back and forth. The lamp housing 2 is also provided with a support protrusion, for example, on one side surface portion, although this is not shown. The lamp housing 2 is formed with shaft insertion holes 7, 7 that penetrate back and forth on the rear surface portion 2b (only one of the shaft insertion holes 7 is shown in FIG. 1). The lamp housing 2 is provided with a shaft attachment portion 8 on the rear surface portion 2b. The shaft attachment portion 8 is located below the support protrusion 6. The other shaft insertion hole 7 is located to the side of the shaft attachment portion 8.

A pivot shaft 9 is attached to the shaft mounting part 8. The pivot shaft 9 has a mounting shaft part 9a that extends forward and backward and a spherical part 9b that is connected to the front end of the mounting shaft part 9a. The mounting shaft part 9a is attached to the shaft mounting part 8, and the spherical part 9b is located in front of the shaft mounting part 8 in the lamp chamber 5.

A lamp unit 10 is disposed in the lamp chamber 5. The lamp unit 10 is configured to have, for example, a reflector 11 and a light source (not shown). Note that the lamp unit 10 is not limited to having a reflector 11 and a light source, and may have other components, such as a projection lens or a shade. In the lamp unit 10, light emitted from the light source is reflected by the reflector 11, made into parallel light, transmitted through the cover 3, and irradiated forward.

The reflector 11 is provided with an attachment portion 12 and connecting portions 13, 13 that protrude rearward (only one connecting portion 13 is shown in FIG. 1). One connecting portion 13 is positioned above the attachment portion 12, and the other connecting portion 13 is positioned to the side of the attachment portion 12.

A pivot holder 14 is attached to the mounting portion 12, and the pivot holder 14 is provided with a holding portion 14a. The holding portion 14a of the pivot holder 14 holds the spherical portion 9b of the adjusting screw 9, and the pivot holder 14 can rotate in any direction with the spherical portion 9b as a fulcrum. The pivot holder 14 and the pivot shaft 9 are components that constitute part of the aiming adjustment mechanism, and the reflector 11 is supported by the lamp housing 2 via the pivot holder 14 and the pivot shaft 9 that constitute the aiming adjustment mechanism, and is integral with the pivot holder 14 and can rotate (tilt) relative to the lamp housing 2 with the spherical portion 9b as a fulcrum.

The connecting portion 13 is provided as a connecting surface portion 15 whose rear end faces approximately in the front-rear direction, and a connecting hole 16 is formed in the connecting surface portion 15, penetrating from front to rear (see FIG. 2). The connecting hole 16 is composed of a circular through portion 16a and groove portions 16b, 16b, 16b positioned radially outward of the through portion 16a, and the groove portions 16b, 16b, 16b are positioned at a distance from each other in the circumferential direction.

Guide inclined surfaces 15a, 15a, 15a are formed on the front opening edges of the grooves 16b, 16b, 16b at one end in the circumferential direction. The guide inclined surfaces 15a are inclined so as to displace forward and backward as they go in the circumferential direction. An engagement recess 15b is formed on the front side of the connection surface 15, and the engagement recess 15b opens forward and toward the through portion 16a.

The connecting surface portion 15 has restricting protrusions 17, 17, 17 spaced apart in the circumferential direction around the through portion 16a. The restricting protrusions 17 protrude forward and are located adjacent to the groove portion 16b in the circumferential direction.

Connecting structures 18, 18 are connected to the connecting surfaces 15, 15 of the connecting parts 13, 13, respectively (see Figure 1). Each connecting structure 18 is composed of a ball bearing member 19 made of a resin material and a nut member 20 (see Figures 2 to 4).

The ball bearing member 19 is constructed such that the first part 21 and the second part 22 can be opened and closed with the hinge parts 23, 23 as a fulcrum, and the first part 21 and the second part 22 are connected by closing the first part 21 and the second part 22 with the hinge parts 23, 23 as a fulcrum (see Figures 3, 4 and 6). The first part 21 and the second part 22 are positioned above and below when the ball bearing member 19 is constructed, and the hinge parts 23, 23 are positioned at the front end apart from each other on the left and right (see Figures 3 to 5).

The first part 21 and the second part 22 are each provided with various parts for connection (see FIG. 6). The first part 21 has locking protrusions 21a, 21a, positioning pins 21b, 21b, and engaging claws 21c, 21c, each positioned at a distance from the left and right, while the second part 22 has locking claws 22a, 22a, positioning holes 22b, 22b, and engaging edges 22c, 22c, each positioned at a distance from the left and right.

When the first part 21 and the second part 22 are closed, the locking protrusions 21a, 21a are locked to the locking claws 22a, 22a, respectively, the positioning pins 21b, 21b are inserted into the positioning holes 22b, 22b, respectively, and positioned, and the engaging claws 21c, 21c are engaged with the engaging edges 22c, 22c, respectively, to form the ball bearing member 19 (see Figures 3 to 5).

The ball bearing member 19 has a base tube portion 24 formed in a substantially cylindrical shape, receiving portions 25, 25, 25 protruding radially outward from a position near the front end of the base tube portion 24, and elastic deformation portions 26 protruding radially outward from the base tube portion 24 on the rear side of the receiving portions 25, 25, 25.

The inner space in the rear half of the base cylinder 24 is formed as the insertion space 24a, and the wall surface that forms the insertion space 24a is formed in a spherical shape. A restriction hole 24b that opens upward is formed at the lower end inside the base cylinder 24, and the restriction hole 24b is connected to the insertion space 24a.

The portion between the receiving portion 25, 25, 25 and the elastic deformation portion 26 in the base tube portion 24 is provided as the insertion portion 27. The insertion portion 27 is provided with protruding portions 28, 28, 28 that protrude slightly outward in the radial direction from other portions and are spaced apart in the circumferential direction (see Figures 4, 5, and 7). The outer surface of the protruding portion 28 is formed with inclined portions 28a, 28a on both sides in the circumferential direction, and the portion between the inclined portions 28a, 28a is formed as a pressing portion 28b. The inclined portions 28a, 28a are inclined so as to be displaced radially outward of the insertion portion 27 as they approach each other in the circumferential direction, and the pressing portion 28b is formed as a gentle arc surface based on the central axis of the base tube portion 24. Therefore, the pressing portion 28b is located on the outermost side of the insertion portion 27.

The receiving portion 25 is formed as a flat receiving surface 25a with the central portion in the circumferential direction of the rear surface facing directly rearward. One of the receiving portions 25, 25, 25, is provided with an engagement protrusion 25b that protrudes rearward.

The elastic deformation portion 26 is provided as a disc spring, and is composed of a protruding portion 26a connected to the base tube portion 24 and a pressing portion 26b connected to the outer periphery of the protruding portion 26a. The elastic deformation portion 26 is inclined so that the protruding portion 26a displaces forward as it approaches the outer periphery, and the protruding portion 26a is elastically deformable in the front-rear direction.

The nut member 20 is composed of a cylindrical support portion 29 with the axial direction in the front-to-rear direction, an intermediate portion 30 protruding upward from the rear half of the support portion 29, and a supported portion 31 connected to the upper end of the intermediate portion 30 (see Figures 2 to 5).

The internal space of the insertion support part 29 is formed as a screw insertion hole 32. The front half of the insertion support part 29 is provided as a pivot point part 33, and the rear half is provided as an insertion part 34.

The outer surface of the pivot point 33 is formed spherically, except for the front surface. The pivot point 33 is provided with a regulated shaft 33a that protrudes downward, and the outer diameter of the regulated shaft 33a is smaller than the diameter of the regulated hole 24b formed in the base cylinder portion 24 of the ball bearing member 19. The insertion portion 34 is formed in a shape that increases in diameter toward the rear.

The screw insertion hole 32 has a portion with the smallest diameter inside the pivot point 33, and a screw groove 32a is formed on the wall surface that forms this portion with the smallest diameter.

The supported portion 31 has a flat base surface portion 31a facing the vertical direction, a partition portion 31b protruding upward from the center in the horizontal direction of the base surface portion 31a, leaf spring portions 31c, 31c positioned on the left and right of the partition portion 31b, and guided protrusions 31d, 31d protruding downward from positions near both the left and right ends of the base surface portion 31a. The outer ends of the leaf spring portions 31c, 31c in the horizontal direction are connected to both the left and right ends of the base surface portion 31a, and are formed into an upwardly convex arc surface. The leaf spring portions 31c, 31c are elastically deformable in the vertical direction. The guided protrusions 31d are formed in a shape that extends forward and backward.

The nut member 20 is connected to the ball bearing member 19 by inserting the pivot point portion 33 into the insertion space 24a (see Figures 2 and 5). The pivot point portion 33 is inserted into the insertion space 24a by placing the pivot point portion 33 on the second part 22 while the first part 21 and the second part 22 are open, and then closing the first part 21 and the second part 22.

When the nut member 20 is connected to the ball bearing member 19, the rear end portion of the base tube portion 24 is allowed to slide relative to the pivot fulcrum portion 33, and the ball bearing member 19 is allowed to rotate in any direction with the pivot fulcrum portion 33 as a fulcrum. When the nut member 20 is connected to the ball bearing member 19, the regulated shaft 33a of the nut member 20 is inserted into the regulated hole 24b of the ball bearing member 19. Therefore, when the ball bearing member 19 is rotated with the pivot fulcrum portion 33 as a fulcrum, the regulated shaft 33a comes into contact with the wall surface that forms the regulated hole 24b, thereby restricting excessive rotation of the ball bearing member 19 relative to the nut member 20.

The ball bearing member 19 of the connecting structure 18 is connected to the connecting surface portion 15 provided on the connecting portion 13 of the reflector 11 by a bayonet connection as follows (see Figures 5, 8, 9, 10, and 11).

First, the portion of the ball bearing member 19 in front of the elastic deformation portion 26 is inserted into the connecting hole 16 from the rear (see Figures 8 and 9). At this time, the base tube portion 24 is inserted into the through portion 16a, and the receiving portions 25, 25, 25 are inserted into the grooves 16b, 16b, 16b, respectively. When the portion of the ball bearing member 19 in front of the elastic deformation portion 26 is inserted into the connecting hole 16, almost the entire receiving portions 25, 25, 25 are positioned in front of the connecting surface portion 15, and the elastic deformation portion 26 is in contact with the rear surface of the connecting surface portion 15.

Next, the ball bearing member 19 is rotated in one direction around the axis relative to the connecting surface portion 15 (see Figures 10 and 11). When the ball bearing member 19 is rotated relative to the connecting surface portion 15, the inclined portions 28a, 28a, 28a of the receiving portions 25, 25, 25 slide against the guide inclined surfaces 15a, 15a, 15a, respectively, displacing the ball bearing member 19 slightly forward, and the receiving portions 25, 25, 25 ride up onto the front surface of the connecting surface portion 15.

In this way, when the ball bearing member 19 rotates relative to the connecting surface portion 15, the inclined portion 28a of the ball bearing member 19 slides along the guide inclined surface 15a, displacing it slightly forward, causing the receiving portion 25 to ride up onto the front surface of the connecting surface portion 15, and the ball bearing member 19 is guided by the guide inclined surface 15a and rotates relative to the connecting surface portion 15. Therefore, the operation of connecting the ball bearing member 19 to the connecting surface portion 15 can be performed easily and accurately.

The ball bearing member 19 is rotated to a position where the receiving portions 25, 25, 25 contact the restricting protrusions 17, 17, 17, and the rotation of the ball bearing member 19 relative to the connecting surface portion 15 is restricted by the receiving portions 25, 25, 25 contacting the restricting protrusions 17, 17, 17 (see FIG. 10). When the receiving portions 25 contact the restricting protrusions 17, the engaging protrusions 25b of the receiving portions 25 are inserted into and engaged with the engaging recesses 15b of the connecting surface portion 15 (see FIG. 5).

In this way, an engagement recess 15b is formed in the connecting portion 13, and an engagement protrusion 25b is provided in the receiving portion 25, which protrudes toward the elastic deformation portion 26 and is inserted into the engagement recess 15b.

Therefore, when the receiving portion 25 and the elastic deformation portion 26 sandwich the connecting portion 13 and the ball bearing member 19 is connected to the connecting portion 13, the engaging protrusion 25b is inserted into the engaging recess 15b, so that when the ball bearing member 19 is connected to the connecting portion 13, the rotation of the ball bearing member 19 relative to the connecting portion 13 is restricted, and it is possible to prevent the ball bearing member 19 from falling off the connecting portion 13 due to vibration, etc.

When the ball bearing member 19 is rotated in one direction around the axis relative to the connecting surface portion 15, the inclined portions 28a, 28a, 28a of the protrusions 28, 28, 28 slide against the wall surface (the opening edge of the connecting hole 16) that forms the connecting hole 16, and the pressing portions 28b, 28b, 28b are pressed against this wall surface (see FIG. 11). Therefore, the pressing portions 28b, 28b, 28b are in close contact with the connecting surface portion 15 from the connecting hole 16 side.

When the ball bearing member 19 is rotated relative to the connecting surface portion 15 as described above, the ball bearing member 19 is displaced slightly forward, so that the elastic deformation portion 26 is elastically deformed and the pressing portion 26b is pressed against the rear surface of the connecting surface portion 15, and the receiving surfaces 25a, 25a, 25a of the receiving portions 25, 25, 25 are tightly attached to the front surface of the connecting surface portion 15.

In this way, a plurality of receiving portions 25 positioned at a distance in the circumferential direction and an elastic deformation portion 26 that can deform in the front-rear direction are provided in front of and behind the pressing portion 28b of the ball bearing member 19, and the ball bearing member 19 is connected to the connecting portion 13 in a state in which the elastic deformation portion 26 is elastically deformed and the connecting portion 13 is sandwiched from the front and rear by the receiving portions 25 and the elastic deformation portion 26.

As a result, the elastically deformed elastic deformation portion 26 is pressed against the connecting portion 13, and the ball bearing member 19 is connected to the connecting portion 13 in a state in which the receiving portion 25 and the elastic deformation portion 26 sandwich the connecting portion 13. This prevents the ball bearing member 19 from rattling relative to the connecting portion 13, and allows the ball bearing member 19 to be stably connected to the connecting portion 13.

In addition, because the elastically deformable portion 26 is formed in a ring shape, the elastically deformed elastically deformable portion 26 is pressed against the entire periphery of the connecting hole 16, so the contact area of the elastically deformable portion 26 with the connecting portion 13 is large, allowing the ball bearing member 19 to be connected to the connecting portion 13 in a more stable state.

The connecting structure 18, in which the ball bearing member 19 is connected to the connecting portion 13, is supported by the nut member 20 on the support protrusion 6 of the lamp housing 2 in a state in which it can move in the forward and backward directions (see FIG. 1).

The supported portion 31 of the nut member 20 is inserted, for example, from the front between the upper surface 2a of the lamp housing 2 and the support protrusion 6, the leaf spring portions 31c, 31c are in contact with the underside of the upper surface 2a, and the guided protrusions 31d, 31d are in contact with or close to the left and right opening edges of the guide slit 6a formed in the support protrusion 6. Therefore, the leaf spring portions 31c, 31c prevent rattling with respect to the lamp housing 2, and the guided protrusions 31d, 31d are guided by the support protrusion 6, allowing the nut member 20 to move smoothly in the forward and backward directions relative to the support protrusion 6.

An adjusting screw 35 is inserted into the connecting structure 18 and assembled (see Figures 1, 2, and 6). The adjusting screw 35 has a shaft portion 36 that extends forward and backward and a flange portion 37 that protrudes outward from the rear end of the shaft portion 36. The front half of the shaft portion 36 is provided as a screw-in portion 36a.

The adjusting screw 35 has its shaft portion 36 inserted from the rear into the shaft insertion hole 7 formed in the rear surface portion 2b of the lamp housing 2, with the flange portion 37 abutting against the rear surface portion 2b (see FIG. 1). The adjusting screw 35 is immovable in the axial direction (front-to-back direction) relative to the lamp housing 2, but rotatable about the axis. The adjusting screw 35 has its shaft portion 36 inserted into the insertion support portion 29 of the nut member 20 and the base tube portion 24 of the ball bearing member 19, and the threaded portion 36a is threaded into the screw groove 32a formed in the insertion support portion 29.

The connecting structures 18, 18 and the adjusting screws 35, 35 are components that, together with the pivot holder 14 and the pivot shaft 9, form part of the aiming adjustment mechanism, and the reflector 11 is supported on the lamp housing 2 via the connecting structures 18, 18 and the adjusting screws 35, 35 that form the aiming adjustment mechanism.

When one of the adjusting screws 35 is rotated, the screw groove 32a is advanced with the rotation of the adjusting screw 35, and the connecting structure 18 is moved in the front-to-rear direction relative to the support protrusion 6, and with the forward-to-rear movement of the connecting structure 18, the reflector 11 is rotated (tilted) in the vertical direction around the spherical portion 9b of the pivot shaft 9 as a fulcrum, and aiming adjustment in the vertical direction is performed. At this time, the ball bearing member 19 is rotated relative to the nut member 20 with the rotation fulcrum portion 33 as a fulcrum, and the load applied to the ball bearing member 19 with the movement of the nut member 20 is absorbed, and the reflector 11 is rotated smoothly.

When the other adjusting screw 35 is rotated, the screw groove 32a is advanced with the rotation of the adjusting screw 35, and the connecting structure 18 is moved in the front-rear direction relative to the support protrusion 6, and the reflector 11 is rotated (tilted) in the left-right direction around the spherical portion 9b of the pivot shaft 9 as a fulcrum with the connecting structure 18 moving in the front-rear direction, and aiming adjustment in the left-right direction is performed. At this time, the ball bearing member 19 is rotated (pivoted) relative to the nut member 20 with the rotation fulcrum portion 33 as a fulcrum, and the load applied to the ball bearing member 19 with the movement of the nut member 20 is absorbed, and the reflector 11 is rotated smoothly.

As described above, in the vehicle headlamp 1, the ball bearing member 19 is provided with an insertion portion 27 that is inserted into the connecting hole 16 formed in the connecting portion 13, and the outer peripheral surface of the insertion portion 27 is formed with a pressing portion 28b that protrudes outward and is pressed against the opening edge of the connecting hole 16.

As a result, the ball bearing member 19 is connected to the connecting portion 13 with the pressing portion 28b formed on the insertion portion 27 pressed against the connecting portion 13, preventing the ball bearing member 19 from rattling relative to the connecting portion 13 and ensuring a stable connection state of the ball bearing member 19 to the connecting portion 13 of the lamp unit 10.

In addition, since the pressing portions 28b are formed at intervals in the circumferential direction, the pressing portions 28b are pressed against the opening edge of the connecting hole 16 at positions spaced apart in the circumferential direction, so that the ball bearing member 19 is connected to the connecting portion 13 in a stable state, and rattling of the ball bearing member 19 relative to the connecting portion 13 can be reliably prevented.

The number of pressing parts 28b provided on the ball bearing member 19 is arbitrary, but it is preferable to provide multiple pressing parts spaced apart in the circumferential direction to ensure a stable connection state of the ball bearing member 19 to the connecting part 13.

1...vehicle headlamp, 2...lamp housing, 10...lamp unit, 14...connecting portion, 15b...engagement recess, 16...connecting hole, 19...ball bearing member, 20...nut member, 25...receiving portion, 25b...engagement protrusion, 26...elastic deformation portion, 27...insertion portion, 28b...pressing portion, 35...adjusting screw

Claims (5)

a nut member into which an adjusting screw that is rotated relative to a lamp housing is screwed and which is moved in a forward and backward direction relative to the lamp housing in accordance with a rotation direction of the adjusting screw;
a ball bearing member connected to a connecting portion of a lamp unit that is rotatable relative to the lamp housing and displaced relative to the nut member in response to movement of the nut member in the forward and backward directions,
The ball bearing member is provided with an insertion portion that is inserted into a connection hole formed in the connection portion,
a pressing portion is formed on an outer peripheral surface of the insertion portion so as to protrude outward and be pressed against an opening edge of the connection hole ;
A plurality of receiving portions spaced apart from each other in a circumferential direction and an elastic deformation portion deformable in a front-rear direction are provided in front and rear of the pressing portion of the ball bearing member,
The elastic deformation portion is elastically deformed, and the ball bearing member is connected to the connecting portion in a state in which the connecting portion is sandwiched from the front and rear by the receiving portion and the elastic deformation portion.
Vehicle parts. The vehicle component according to claim 1 , wherein the pressing portion is formed in a plurality of portions spaced apart from each other in a circumferential direction. The elastic deformation portion is formed in an annular shape.
The vehicle part according to claim 1 or 2 . An engagement recess is formed in the connecting portion,
The receiving portion is provided with an engaging protrusion that protrudes toward the elastically deforming portion and is inserted into the engaging recess.
The vehicle part according to claim 1, claim 2 or claim 3 . a lamp housing having an opening on at least one side;
a lamp unit having a connecting portion with a connecting hole formed therein and being rotatable with respect to the lamp housing;
an adjusting screw that is rotated relative to the lamp housing;
a nut member into which the adjusting screw is screwed and which is moved in a forward and backward direction with respect to the lamp housing in accordance with a rotation direction of the adjusting screw;
a ball bearing member connected to the connecting portion and displaced relative to the nut member in response to movement of the nut member in the front-rear direction,
the ball bearing member is provided with an insertion portion that is inserted into the connecting hole,
a pressing portion is formed on an outer peripheral surface of the insertion portion so as to protrude outward and be pressed against an opening edge of the connection hole ;
A plurality of receiving portions spaced apart from each other in a circumferential direction and an elastic deformation portion deformable in a front-rear direction are provided in front and rear of the pressing portion of the ball bearing member,
The elastic deformation portion is elastically deformed, and the ball bearing member is connected to the connecting portion in a state in which the connecting portion is sandwiched from the front and rear by the receiving portion and the elastic deformation portion.
Vehicle headlights.

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