JP3163474B2 - Mounting structure for automotive headlights - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automotive headlamp mounting structure which can eliminate the effects of molding distortion and errors occurring at the mounting location when the automotive headlamp is mounted on a vehicle body. It is about.

[0002]

2. Description of the Related Art In a structure for mounting a headlight for an automobile on a vehicle body side member, a bolt supported by a lamp body is inserted into a bolt insertion hole formed in the vehicle body side member and protrudes from the bolt insertion hole. It is common to mount a vehicle headlight on a vehicle body-side member by screwing a nut to a portion.

FIGS. 8 to 10 show an example of such a mounting structure of a conventional automotive headlamp.

In FIG. 1, reference numeral a denotes an automotive headlamp, which has a lamp body b and a lens c fixed so as to cover the front surface of the lamp body b.

[0005] d ₁ and d ₂ are support pieces protruding from the lamp body b, and the support pieces d ₁ and d ₂ are provided with through bolts e ₁ and e _2.
Are formed through holes f ₁ and f ₂ .

G ₁ and g ₂ are support protrusions, and the support protrusions g
_1, foundation bolts h ₁ by appropriate means in thermal press-fitting to the g _2,
h ₂ is fixed so as to protrude rearward.

Reference symbol i denotes a vehicle body. The vehicle body i has mounting portions j ₁ and j _{2 at} positions corresponding to the support pieces d ₁ and d ₂ , and mounting portions at positions corresponding to the support protrusions g ₁ and g _2. k ₁ and k ₂ are provided protruding respectively.

The mounting portions j ₁ and j ₂ are formed with screw holes l ₁ and l ₂ through which through bolts e ₁ and e ₂ are screwed.
The mounting portion k _1, k ₂ insertion holes m _1, m ₂ for foundation bolts h _1, h ₂ is inserted is formed.

In order to mount the automotive headlamp a on the vehicle body i, the base bolt h fixed to the support projections g ₁ and g ₂ is used.
_1, projecting a h ₂ is inserted into the insertion hole m _1, m ₂ of the mounting portion k _1, k ₂ formed in the body i, from the insertion hole m _1, m ₂ of foundation bolts h _1, h ₂ in this state Nuts n ₁ and n ₂ are screwed into the set portions.

[0010] Then, the insertion of the support piece d _1, d ₂ holes f _1, f ₂
Then, the bolts e ₁ and e ₂ are inserted through the holes and screwed into the screw holes l ₁ and l ₂ of the mounting portions j ₁ and j ₂ .

[0011]

The above-described conventional headlamp mounting structure for a vehicle has the following problems in the mounting operation.

That is, when the vehicle headlamp a is mounted on the vehicle body i, the supporting pieces d ₁ and d ₂ formed on the vehicle headlamp a.
And the surface facing the upper side of the mounting portions j ₁ and j ₂ and the surface facing the rear of the support projections g ₁ and g ₂ and the mounting portions k ₁ and k _2.
Must be in contact with the front-facing surface.

[0013] However, if there is an error on the pre-molding for automobile headlight a or vehicle i, for example, the distance o between the support protrusions g ₂ and the mounting portion k ₂ as shown in FIG. 9 (a) In some cases, the vehicle headlight a could not be attached to the vehicle body i.

If the nut n ₂ is forcibly fastened to the base bolt h ₂ , the support projection g ₂ will be attracted to the mounting portion k by the distance o as shown in FIG. 9 (b). 10, the vehicle headlight a attached to the vehicle body i as shown by the solid line is twisted and attached as shown by the two-dot chain line, and the vehicle headlight a may be damaged.

[0015]

According to the present invention, there is provided an automotive headlamp mounting structure for mounting an automotive headlamp on a vehicle body via a joint member having stud bolts in order to solve the above-mentioned problems. In the headlight mounting structure, the joint member includes a main bracket supported by the vehicle body, and the main bracket and a strip-shaped thin connecting piece.
A sub-bracket which is integrally formed and slidably supports the main bracket and embeds the stud bolt, wherein the sub-bracket slides relative to the main bracket only in one direction in the axial direction of the stud bolt. And sliding in the opposite direction is prevented.

Therefore, according to the vehicle headlight mounting structure of the present invention, when the vehicle headlamp or vehicle body is distorted or distorted when it is molded, the joint member is attached to the support in the axial direction of the bolt. By moving the headlight to the vehicle, the vehicle headlight is not attached to the vehicle body in a defective manner, or the vehicle headlight is not twisted and mounted on the vehicle body.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a headlamp mounting structure according to an embodiment of the present invention;

Reference numeral 1 denotes an automobile headlamp, which is a lamp body 2 which is opened forward (the left side in FIG. 1 is the right side, the right side is the left side, the lower side is the front side, and the upper side is the rear side), a transparent material and the like. And a lens 3 formed by:

A space 4 is formed by covering the front surface of the lamp body 2 with the lens 3, and the reflecting mirrors 5, 5 are separately supported in the space at three places with respect to the lamp body 2 respectively. The distance between the lamp body 2 and the reflecting mirror 5 is made variable, whereby the reflecting mirrors 5, 5 are supported so as to be tiltable with respect to the lamp body 2, respectively.

The vehicle headlamp 1 is supported at four positions with respect to the vehicle body 6. That is, four portions of the lamp body 2 including a lower left rear portion, an upper left rear portion, a lower right rear portion, and an upper right rear portion are respectively supported by the vehicle body 6, and the lower left rear portion, the upper left rear portion, and the upper right rear portion of the support are supported. In three places, the lamp body 2 is fixedly supported with respect to the vehicle body 6, and the remaining 1
The lamp body 2 is variably supported by being attached to the vehicle body 6 via a joint member described later.

Hereinafter, the support of the vehicle headlamp 1 to the vehicle body 6 will be described. First, the fixed support will be described. The fixed support at the lower left rear portion, the upper left rear portion, and the upper right rear portion has almost the same configuration. Therefore, only one of them (lower left lower portion) will be described.
Of the two (upper left rear, upper right rear), the description of the upper left rear is omitted by adding “′” to the reference numerals assigned to the same members or parts, and the other upper right rear is described. Are not shown and described.

Reference numeral 7 denotes a support piece protruding leftward from the lower left rear portion of the lamp body 2. A stud bolt 8 is threaded on the support piece 7 by an appropriate means such as insert molding or heat press fitting. Is buried so as to protrude rearward.

The stud bolt 8 of the support piece 7 is inserted from the front into the insertion hole 10 of the mounting portion 9 formed in the vehicle body 6, and a nut 11 is screwed into a portion projecting rearward from the insertion hole 10 of the stud bolt 8. By being combined, the surface facing the rear of the support piece 7 and the surface facing the front of the mounting portion 9 are connected in a state of contact.

Next, the variable support of the lamp body 2 with respect to the vehicle body 6 will be described.

Reference numeral 12 denotes a support tube for supporting a joint member described later. The support tube 12 is formed at the lower right side of the lamp body 2 toward the rear.

The support cylinder 12 has a substantially rectangular cross section in a vertical cross section, and the upper and lower side walls 13, 13 constituting the support cylinder 12 have their rear end portions located at approximately intermediate positions in the front-rear direction. Step 1 so that
4 and 14 are formed, and the cross-sectional shape of the portion behind the steps 14 and 14 is formed to be substantially square.

Reference numeral 15 denotes a joint member formed of a synthetic resin material. The joint member 15 surrounds the sub-bracket 16 in the form of a square tube which is slightly smaller than the support tube 12 of the lamp body 2. The main bracket 17 is provided slidably with respect to the sub-bracket 16, and a stud bolt 19 embedded in a boss portion 18 formed substantially at the center of the sub-bracket 16.

The rear end face of the sub-bracket 16 is closed, and the sub-bracket 16 is closed from the inner side of
6), and the ribs 21, 21,... Are formed between the outer peripheral surface of the boss portion 18 and the inner surface of the sub-bracket 16, whereby the boss portion is formed. The portion 18 is stably supported on the sub-bracket 16.

The outer walls 22, 22,.
.. Are formed at substantially the center of the left and right side walls 22, 22 in the front-rear direction and slightly apart from the center in the vertical direction in the vertical direction, respectively. The pieces 23, 23 are surfaces facing each other (inner surfaces) 23.
a, 23a are formed substantially at right angles to the side wall 22, and the surfaces (outer surfaces) 23b, 23 facing upward or downward.
b are inclined so that they approach each other in the projecting direction, whereby the cross-sectional shape of the protruding pieces 23 is substantially triangular (see FIG. 6).

Upper and lower side walls 24, 24 of sub-bracket 16
In the part slightly rearward from the middle in the front-rear direction, the vertical vertical cross-sectional shape is formed with sawtooth-shaped pawl surfaces 25, 25, and the pawl surface 25 is viewed in the vertical vertical cross-section.
Are inclined so that their heights decrease as they go rearward, and these inclined surfaces 2a, 25a,.
A surface 25b (vertical surface) connecting 5a and 25a is formed almost vertically (see FIG. 6).

The stud bolt 19 has a screw portion 19a projecting rearward from the closing plate 20 of the sub-bracket 16, and a buried portion 19b is fixed to the boss portion 18 by an appropriate means such as insert molding or heat press fitting. , A flange portion 19c between the screw portion 19a and the buried portion 19b
The rear surface of the sub-bracket 16 is substantially flush with the rear surface of the closing plate 20. In addition, sub bracket 1
6 and hollow stud bolts 1
9 can be smoothed during cooling after insert molding by dividing the outer walls 22, 22,...

The main bracket 17 is the sub bracket 1
The main bracket halves 26 and 2 each having a U-shaped vertical cross-sectional shape surrounding the upper and lower portions 6 respectively.
Consists of six. These two main bracket halves 26
And 26 have almost the same shape, so the upper one will be described, and the lower one will be described only for parts different from the upper one, and the other description will be omitted.

The upper main bracket half 26 has a U-shaped vertical transverse cross section opened downward, and the space between the left and right side walls 27 is almost the same as or slightly larger than the left and right width of the sub bracket 16. The length in the front-rear direction is substantially the same as or slightly smaller than the length of the support tube 12 of the lamp body 2.

At the left and right ends of the rear edge 28a of the upper wall 28 of the main bracket half 26, a piece 2 projecting upward is provided.
Projections 9 and 29 are provided, and between the projecting pieces 29 and 29, an elastic contact piece 30 is provided which is inclined slightly forward and extends upward.

A U-shaped notch 31 is formed slightly forwardly of the elastic contact piece 30 of the upper wall 28 of the main bracket half 26 when viewed from the top, and a portion surrounded by the notch 31 is formed up and down. And a ratchet tooth 33 corresponding to the ratchet surface 25 of the upper side wall 24 of the sub-bracket 16 at the rear end of the lower surface of the ratchet tooth contact piece 32. Are formed. The ratchet teeth 33, 33,... Slightly protrude downward from the inner surface (lower surface) of the upper wall 28 of the main bracket half 26.

The ratchet teeth 33, 33,... Are inclined so that the inclined surfaces 33a, 33a,.
A surface 33b (vertical surface) connecting these inclined surfaces 33a and 33a is formed almost vertically (see FIG. 6). Are engaged with the pawl surface 25, the ratchet teeth 33, 33,.
Are movable forward with respect to the pawl surface 25, and are not movable in the opposite direction (the ratchet teeth 33, 33... Are rearward with respect to the pawl surface 25).

The ratchet contact piece 32 is formed such that the portion behind the base edge is thinner than the thickness of the upper wall 28, and the ratchet teeth 33, 33,. The thickness including 33, 33,... Is formed to be almost the same as the thickness of the upper wall 28.

A slightly U-shaped notch 34 is formed slightly forwardly of the pawl contact piece 32 on the upper wall 28 of the main bracket half 26 so as to open forward when viewed from a plane.
The portion surrounded by 4 is a vertically flexible locking piece 35. The locking piece 35 is inclined so that its rear end protrudes upward when no external force is applied, and its rear edge is Projecting slightly upward from the upper surface of the upper wall 28, and
It has become.

The distance between the locking edge 36 and the elastic piece 30 is substantially the same as the distance between the rear end edge of the support cylinder 12 of the lamp body 2 and the step 14 thereof. Yes,
As a result, the joint member 15 assembled as will be described later is sandwiched between the engaging edge 36 of the main bracket half 26 and the elastic piece 30 from the step portion 14 of the support cylinder 12 so that the lamp body 2 Attached to.

The left and right side walls 27, 27 of the main bracket half 26 are formed so that the length in the vertical direction is substantially half the length in the vertical direction of the sub-bracket 16, whereby the two main bracket halves 26 26, the vertical cross-sectional shape of the space formed between the halves 26 and 26 becomes substantially the same as the vertical cross-sectional shape of the sub-bracket 16. I have.

Each of the left and right side walls 27 has a slit 37 extending in the front-rear direction.
37 are formed corresponding to the projecting pieces 23 of the sub-bracket 16, respectively, so that when the main bracket half 26 is fitted to the sub-bracket 16 from above, the projecting pieces 23 of the sub-bracket 16 are formed. Are fitted in the slits 37 of the main bracket half 26.

The slits 3 in the left and right side walls 27, 27
The inside of the lower edge corresponding to 7, 37 is a tapered surface 27a,
27a are formed, and when the main bracket halves 26, 26 are rotated with respect to the sub-bracket 16, the tapered surfaces 27a, 27s come into contact with the inclined surfaces 23b, 23b of the projecting pieces 23, 23. Become.

A small recess 38 is formed in the lower edge of one side wall 27 of the upper main bracket half 26, and one side wall 2 of the lower main bracket half 26 is formed.
7, a convex portion 39 corresponding to the concave portion 38 is formed on the upper edge, and the two main bracket halves 26, 26
When the sub-bracket 16 is sandwiched from above and below, the projection 39 fits into the recess 38.

The front end of the main bracket half 26 and the front end of the sub-bracket 16 are connected via two thin strips 40, 40. 16 and the main bracket halves 26, 26 are integrally formed.
When the sub-bracket 16 and the main bracket halves 26, 26 are integrally formed, FIGS.
The main bracket halves 26, 26 are formed in a state of being opened at right angles to the sub-bracket 16, respectively.

Then, the sub bracket 16 and the main bracket halves 26, 26 formed as described above are fitted and assembled by sandwiching the main bracket halves 26, 26 with the sub bracket 16 from above and below. The two main bracket halves 26, 26 are used as a main bracket 17, and the main bracket 17, the sub-bracket 16, and the stud bolt 19 are used.
Thus, the joint member 15 is configured.

When the main bracket half 26 is fitted to the sub-bracket 16,
The lower edges of the left and right side walls 27, 27
Abut on the protruding pieces 23 of the left and right side walls 22. At this time, the tapered surfaces 27a, 2a of the left and right side walls 27, 27
Since 7a contacts the inclined surfaces 23b, 23b of the protruding pieces 23, 23, the left and right side walls 27, 27 can easily get over the protruding pieces 23, 23.

The left and right side walls 27, 27
When the main bracket half 26 is lowered when the vehicle goes over the third and the third 23, and the main bracket half 26 is further lowered, the protruding pieces 23 and 23 are fitted into the slits 37 and 37 of the left and right side walls 27 and 27. The two side walls 27, 27 return to their original state due to their elastic force, and the fitting of the main bracket half 26 to the sub bracket 16 is completed.

In this state, the main bracket half 26 is prevented from falling off the sub bracket 16 upward. When the main bracket half 26 is placed over the sub-bracket 16 from above, the thin connecting pieces 40, 40 are looped due to their flexibility and are not broken.

When the lower main bracket half 26 is similarly fitted to the sub bracket 16 from below,
The convex portion 39 of the lower main bracket half 26 fits into the concave portion 38 of the upper main bracket half 26, and the two main bracket halves 26, 26 are integrated in the front-rear direction.

Since the ratchet contact piece 32 has its ratchet teeth 33, 33,... Protruding slightly downward from the inner surface of the upper wall 28 of the main bracket half 26, the ratchet teeth 33, 33,. Are elastically contacted with the pawl surface 25 formed on the upper surface of the sub-bracket 16, and the ratchet teeth 33, 33,.

The ratchet teeth 33, 33,... Can move forward with respect to the pawl surface 25, and can move in the opposite direction (rearward).
The main bracket half 26 can move forward with respect to the sub-bracket 16 and cannot move backward because the main bracket half 26 cannot move. The movement range is regulated by the engagement between the protruding pieces 23, 23 and the slits 37, 37. That is, the state in which the protruding piece 23 is located at the front end of the slit 37 is the starting end of the movable state of both. In a certain state (hereinafter, referred to as an “initial state”), a state in which the protruding piece 23 is located at the rear end of the slit 37 is a state in which the movement of the both is disabled.

When assembling the main bracket halves 26, 26 to the sub-bracket 16, the main bracket halves 26, 26 are in an initial state with respect to the sub-bracket 16.

The joint member 15 thus assembled is inserted into the support cylinder 12 of the lamp body 2 from behind.

At this time, the locking piece 35 of the upper wall 28 of the main bracket half 26 has its upper surface
The elastic piece 30 of the main bracket half 26 abuts on the rear end edge of the support cylinder 12 while being pressed by the part behind the step portion 14 and bent.
The engaging edge 36 of the engaging member 35 passes over the step portion 14 and returns to its original state by the resilience thereof, so that the engaging piece 35 engages with the step portion 14. Movement to is blocked.

The procedure for attaching the joint member 15 attached to the lamp body 2 to the vehicle body 6 will be described below.

Reference numeral 41 denotes a mounting portion formed on the vehicle body 6,
The mounting portion 41 is formed with an insertion hole 42 for inserting the stud bolt 19 of the joint member 15, the screw portion 19 a of the stud bolt 19 is inserted from the front through the insertion hole 42, and the nut 43 is inserted into the screw portion 19 a. The stud bolt 19 is fixed to the mounting portion 41 by screwing in.

The flange 19 of the stud bolt 19
When c protrudes slightly from the rear surface of the sub-bracket 16, the flange portion 19c contacts the mounting portion 41, and when the flange portion 19c is slightly retracted from the rear surface of the sub-bracket 16, the sub-bracket 16 Will come into contact with the mounting portion 41. Then, when the mounting portion 41 comes into contact with the rear surface of the sub bracket 16,
The two are in elastic contact with each other, so that the nut 43 is not easily loosened.

At this time, when there is no gap between the joint member 15 attached to the lamp body 2 of the vehicle headlamp 1 and the mounting portion 41 of the vehicle body 6, that is, the vehicle headlamp 1
And the vehicle body 6 is in a normal positional relationship, and even if the nut 43 is screwed into the screw portion 19a of the stud bolt 19, the sub-bracket 16 of the joint member 15
Never move against.

If there is a gap between the joint member 15 and the mounting portion 41 of the vehicle body 6, the nut 43 is screwed into the stud bolt 19, so that the sub bracket 16 of the joint member 15 is Bracket 17
, Whereby the vehicle headlamp 1 is not twisted and mounted.

When the sub-bracket 16 moves rearward with respect to the main bracket 17, the movement in the reverse direction (forward) is prevented. The distance is not narrowed, the positional relationship between the two is fixedly held, and the automotive headlamp 1 is fixed to the vehicle body 6.

[0061]

As is apparent from the above description, the mounting structure of the vehicle headlight according to the present invention is a vehicle headlight for mounting the vehicle headlight to the vehicle body via a joint member having stud bolts. In the mounting structure, the joint member is integrally formed by the main bracket supported by the vehicle body and the main bracket and a strip-shaped thin connecting piece.
A sub-bracket that is slidably supported on the main bracket and has a stud bolt embedded therein, and the sub-bracket slides on the main bracket only in the axial direction of the stud bolt and in one direction,
The sliding in the opposite direction is prevented.

Therefore, according to the vehicle headlight mounting structure of the present invention, when mounting the vehicle headlamp or the vehicle body, distortion or error or the like generated at the time of molding is caused by the joint member being attached to the support in the axial direction of the bolt. By moving the headlight to the vehicle, the vehicle headlight is not attached to the vehicle body in a defective manner, or the vehicle headlight is not twisted and mounted on the vehicle body.

It should be noted that the specific shapes and structures shown in the above-described embodiments are merely examples of the embodiments for carrying out the present invention, and the technical scope of the present invention is limited thereby. Is not to be interpreted.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a mounting structure of a headlamp for a vehicle according to the present invention together with FIGS. 2 to 7, and FIG. 1 is a front view of the headlamp for a vehicle.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is an enlarged sectional view taken along line III-III of FIG.

FIG. 4 is an enlarged perspective view of the joint member as unfolded and viewed obliquely from the upper rear.

FIG. 5 is an enlarged perspective view of the unfolded joint member as viewed obliquely from the upper front.

FIG. 6 is an enlarged vertical vertical sectional view showing a main part in a state where the positional relationship between the vehicle headlamp and the vehicle body is normal.

FIG. 7 is an enlarged vertical longitudinal sectional view showing a main part in a state where a gap is formed between a vehicle headlamp and a vehicle body.

8 shows an example of a conventional mounting structure of a headlight for a vehicle together with FIGS. 9 and 10, and FIG. 8 is an overall perspective view.

FIG. 9A shows a state of a main part at the time of attachment to a vehicle body.
It is an expanded sectional view of a mounting part explained by (b).

FIG. 10 is an overall perspective view showing a state where a vehicle headlamp is mounted on a vehicle body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automobile headlamp 6 Body 15 Joint member 16 Sub bracket 17 Main bracket 18 Boss part 19 Stud bolt 22 Outer wall 25 Claw surface 30 Elastic piece 32 Claw elastic contact piece 33 Ratchet tooth 35 Lock piece 40 Thin connecting piece 43 Nut

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60Q 1/04

Claims (6)

(57) [Claims] 1. A mounting a automobile headlamp on a vehicle body via a joint member having a stud bolt before automotive headlamp mounting structure, the joint member main bracket and said main that is supported on the vehicle body Integrated with bracket and strip-shaped thin connecting piece
And a sub bracket in which the stud bolt is embedded and slidably supported on the main bracket, and the sub bracket slides on the main bracket only in one direction in the axial direction of the stud bolt. Characterized in that sliding is prevented in the opposite direction. 2. The main bracket is above the sub-bracket.
Hold the sub bracket so as to surround the lower left and right sides
2. The mounting structure for a vehicle headlight according to claim 1, wherein the headlight is mounted on a vehicle. 3. The vehicle according to claim 1, wherein the vehicle body is a joint member and a stud body.
Between the nut screwed to the
The vehicle headlight mounting structure according to claim 1, wherein the headlight is mounted on a vehicle body . 4. A sub-bracket for a main bracket.
The slide in only one direction is formed on the outer wall of the sub bracket.
Formed on the serrated serrated surface and main bracket
Of the resilient contact piece with the ratchet teeth
The headlamp mounting structure for a vehicle according to claim 1, wherein: 5. The sub-bracket has a cylindrical outer wall and a boss formed substantially concentrically with the outer wall, and the stud bolt is embedded in the boss. 2. The mounting structure for a headlight for an automobile according to claim 1. 6. The joint member is formed in a main bracket.
By sandwiching between the formed elastic piece and the engaging piece
2. The mounting structure for a headlight for an automobile according to claim 1, wherein the mounting structure is attached to a support cylinder of the lamp body .