JPH078390Y2 - Headlamps for motorcycles - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a headlamp for a motorcycle (including a bicycle with a motor), and particularly a reflector unit in which a bulb, a reflector and a lens are integrated into a lamp body. The present invention relates to a headlamp for a motorcycle, which is swingably supported with respect to which the irradiation angle of the headlamp can be adjusted (hereinafter referred to as aiming adjustment).

[Prior art]

As an example of a headlamp for a motorcycle capable of aiming adjustment, as shown in FIG. 6, a reflector unit 2 has two adjusting screws 6a and 6b and a ball joint structure bearing 6c in a lamp body 4. Is supported by three points (the adjusting screw 6b is located behind the bearing 6c and is not visible in the figure), and by rotating the adjusting screws 6a and 6b, the reflector unit 2 is swung about the horizontal axis and the vertical axis, respectively. It has a movable structure. Further, the cowling 7 is provided on the peripheral portion 5 of the lamp body 4.
The opening peripheral edge portion 8 is disposed close to each other, and a light leakage prevention member 9 is interposed between the peripheral edge portions 5 and 8 to prevent the light of the headlamp from leaking to the vehicle body side.

[Problems to be solved by the invention]

However, in the above-described conventional headlamp, after mounting the headlamp body in which the reflector unit 2 and the lamp body 4 are assembled and the cowling 7 on the vehicle body (not shown), the light leakage prevention member 9 is attached by an appropriate method such as bonding. It is supposed to be pasted. Therefore, it is troublesome to mount the light leakage prevention member 9, and it takes a long time to assemble the headlamp to the vehicle body.

The present invention has been made in view of the above-mentioned problems of the prior art,
It is an object of the present invention to provide a motorcycle headlamp which is easy to mount on a vehicle body.

[Means for Solving the Problems]

In order to achieve the above object, in a motorcycle headlamp according to the present invention, a reflector unit in which a bulb, a reflector and a lens are integrated is rocked with respect to a container-shaped lamp body mounted and fixed to a vehicle body. A lamp accommodating portion that is movably supported and faces the opening peripheral edge of the lamp body and is formed in the vehicle body is disposed between the opening peripheral edge of the lamp accommodating portion and the peripheral edge of the lamp body. In a motorcycle headlamp in which a light leakage prevention member that closes a gap between peripheral portions is interposed, an engagement groove that can engage with a peripheral portion of a lamp body is formed in the light leakage prevention member, and the engagement groove is formed in the peripheral portion of the lamp body. The light leakage prevention member is assembled to the peripheral portion of the lamp body by engaging with the lamp body, and the inner peripheral surface region of the light leakage prevention member is extended inward to reflect the reflector In which it was in contact with the outer peripheral surface of the bets.

[Action]

Since the light leakage prevention member can be engaged and attached to the peripheral portion of the lamp body, it can be assembled in advance to the headlamp body in which the lamp body and the lamp unit are integrated, and it is not necessary to attach the light leakage prevention member afterwards. In addition to the function of preventing the headlamp from leaking light toward the vehicle body, the light leakage prevention member also has a vibration absorbing function of absorbing vibration between the reflector unit and the vehicle body.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the drawings.

1 to 5 show an embodiment of the present invention.
The figure is a front view of a headlamp for a motorcycle, FIG. 2 is its rear view, FIG. 3 is a sectional view taken along line III-III shown in FIG. 1, and FIG. 4 is line IV- shown in FIG. Sectional view along IV, No. 5
The drawing is a sectional view taken along the line VV shown in FIG.

In these figures, reference numeral 10 is a reflector unit, which is a lens 12 assembled on the front surface of a reflector 12 having a bulb 14 mounted thereon. Reference numeral 15 is a rubber socket cover. On the other hand, reference numeral 20 denotes a container-shaped lamp body, which is attached and fixed to a vehicle body (not shown) by brackets 22 (22a to 22d) protruding from the opposite sides of the lamp body 20 in the left-right direction. Reference numeral 21
Is a back cover that is detachably attached to the opening on the back side of the lamp body 20.

The reflector unit 10 is supported on the lamp body 20 by three points of a swinging fulcrum 24 and two aiming points 26 and 28. The vertical aiming point 26 and the horizontal aiming point 28 are arranged orthogonally to the swing fulcrum 24 when viewed from the front, as shown in FIG.
By rotating the adjusting screws 27 and 29 described later, the reflector unit 10 swings around the horizontal axis Lx and the vertical axis Ly, respectively, which allows the aiming adjustment of the headlamp.

The swing fulcrum 24 is a reflector unit support mechanism having a ball joint structure. The aiming points 26 and 28 are shown in FIGS.
As shown in the drawing, by the rotation of the adjusting screws 27, 29, the bearings 27a, 29a supporting the screws 27, 29 are a reflector support mechanism of a bearing structure that can move in the axial direction (axial direction of the screw). Reference numerals 27b and 29b are metal brackets fixedly attached to the back side of the reflector 12,
Bearings 27a and 29a are supported respectively.

Further, as shown in FIG. 5, the swing fulcrum 24 is such that the spherical portion 25b of the pivot shaft 25a protruding inward of the lamp body 20 is supported by the spherical seat 25c of the spherical step bearing 25 made of synthetic resin such as nylon. The bearing 25 is supported by a metal bracket 25d fixed to the back side of the reflector 12. The portion of the bearing 25 fitted into the bracket 25d is constricted, and the bulging portion 25f on the tip side of the constricted portion 25e is fitted into the bearing support wall 25g of the bracket 25d. Further, a rubber damper 25h is interposed between the bearing support wall 25g and the ball seat forming portion.

In the conventional bearing support structure that constitutes the swing fulcrum, the code 25h
The damper shown by is not provided, and due to the vibration between the vehicle body and the reflector unit 10, the constricted part 25e of the bearing is
Has been scraped at the corner portion of the constricted portion insertion hole of the metal bearing support wall 25g, which causes play, and if this play becomes large, there is a problem that proper aiming adjustment cannot be performed.
However, in this embodiment, since the damper 25h interposed in the constricted portion 25e of the bearing absorbs the vibration between the reflector unit 10 and the vehicle body, there is little relative sliding between the constricted bearing portion 25e and the bearing support wall 25g, As a result, the amount of the constricted portion 25e cut is reduced. Therefore, there is little backlash, and accurate aiming adjustment is possible.

An opening peripheral edge portion 32 of a cowling 30 mounted and fixed to a vehicle body (not shown) is arranged close to a peripheral edge portion 20a of the lamp body 20. A rubber light leakage prevention member 34 is interposed between the peripheral edge portion 20a of the lamp body and the cowling peripheral edge portion 32 to prevent light leakage from the gap between the peripheral edge portions 20a and 32. The light leakage prevention member 34 is formed with a continuous engagement groove 36 that can be fitted to the peripheral edge portion 20a of the lamp body. The lamp body peripheral edge portion 20a is fitted into the engagement groove 36, and the lamp body 20 A light leakage prevention member 34 is attached to the.
The inner peripheral surface area 35 of the light leakage prevention member 34 extends to a position where it can come into contact with the outer peripheral surface of the reflector unit 10, and is pressed against the outer peripheral surface of the reflector unit 10 excluding the swing fulcrum 24, aiming points 26, 28. Then, the vibration between the reflector unit 10 and the vehicle body is absorbed.

Next, a procedure for assembling this headlamp to the vehicle body will be described.

First, the engagement groove 36 of the light leakage prevention member 34 is fitted to the peripheral edge portion 20a of the lamp body, and the light leakage prevention member 34 is assembled to the lamp body peripheral edge portion 20a. Then, the reflector unit 10 and the lamp body 20 are connected to each other through the respective supporting mechanisms forming the swinging fulcrum 24 and the aiming points 26 and 28 to be integrated as a headlamp body. Then, the bracket 22 is screwed to the vehicle body to attach and fix the headlamp body to the vehicle body. In addition, the cowling opening peripheral portion 32
The cowling 30 is attached and fixed to the vehicle body by bringing the cowling 30 into contact with the light leakage prevention member 34.

[Advantages of the Invention] As is apparent from the above description, according to the motorcycle headlamp of the present invention, the light leakage prevention member can be engaged and attached to the peripheral edge of the lamp body, so that the lamp body and the lamp unit are integrated. The headlamp body can be assembled in advance, and the troublesome work of retrofitting the light leakage prevention member as in the past can be eliminated.

In addition to the function of preventing light leakage to the vehicle body side, the light leakage prevention member also has a vibration absorbing function of absorbing the vibration between the reflector unit and the vehicle body, thus providing a headlamp with excellent earthquake resistance.

[Brief description of drawings]

FIG. 1 is a front view of a motorcycle headlamp according to an embodiment of the present invention, FIG. 2 is a rear view thereof, FIG. 3 is a longitudinal sectional view thereof, and FIGS. 4 and 5 are horizontal sectional views thereof. , FIG. 6 is a vertical sectional view of a conventional headlamp. 10 …… Reflector unit, 12 …… Reflector, 14
...... Bulb, 16 ...... Lens, 20 ...... Lamp body, 20a
...... Lamp body peripheral edge, 24 ...... Rotation fulcrum, 26 ...... Up and down aiming point, 28 ...... Left and right aiming point, 30
...... Cowling forming a part of the vehicle body, 32 ...... Perimeter of opening of cowling forming lamp housing, 34 ...... Light leakage prevention member, 35 ...... Inner peripheral surface area of light leakage prevention member, 36 ...... Ditch.

Claims (1)

[Scope of utility model registration request] 1. A reflector unit, in which a bulb, a reflector and a lens are integrated, is swingably supported on a container-shaped lamp body mounted and fixed to a vehicle body, and an opening peripheral edge portion is formed at a peripheral edge portion of the lamp body. The lamp housing portion formed on the vehicle body is disposed so as to face the vehicle body, and a light leakage prevention member that closes a gap between the lamp housing portion and the peripheral edge portion of the lamp body is interposed. In this motorcycle headlamp, the light leakage prevention member is formed with an engagement groove that can be engaged with the peripheral edge portion of the lamp body, and the peripheral edge portion of the lamp body is engaged with this engagement groove to cause light leakage to the peripheral edge portion of the lamp body. A headlamp for a motorcycle, wherein a prevention member is assembled, an inner peripheral surface region of the light leakage prevention member extends inward, and is in contact with an outer peripheral surface of the reflector unit.