JP3583710B2 - Motorcycle headlamp mounting structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a headlamp mounting structure for mounting a lamp unit in which a pair of left and right headlamps are integrated with a cowling mounted on a motorcycle body.
[0002]
[Prior art]
Some motorcycles have a pair of left and right headlamps for front illumination mounted on a cowling mounted to cover a front part of a vehicle body. It is known that a pair of left and right headlamps is formed as an integrated lamp unit by combining a body portion to which a pair of left and right light emitting sources are attached, and a lens portion covering the front surface with a lens surface facing each light emitting source. (See Japanese Patent Application No. 11-270402). The lamp unit is mounted on the cowling by connecting a plurality of mounting portions provided on the body portion to a plurality of mounting portions formed on the back side of the cowling with bolts, and in this state, the lens surface of the lamp unit is mounted on the cowling. Forming part of the front face of The cowling to which the lamp unit is attached is fixed to a cowl bracket previously attached to the vehicle body.
[0003]
[Problems to be solved by the invention]
By the way, since the cowling is generally a large thin molded product made of synthetic resin, the shape is easily deformed. On the other hand, the lamp unit has a considerably large weight because a pair of left and right headlamps are integrated.
[0004]
When attaching the lamp unit to the cowling, hold the heavy lamp unit with one hand and align the mounting holes of this lamp unit with the screw holes of the cowling, whose shape is easily deformed. While maintaining the alignment, the bolt is inserted into the mounting hole with the other hand and screwed into the screw hole. Therefore, the work of positioning the mounting hole in the screw hole and the work of screwing the bolt are time-consuming and inefficient.
[0005]
In particular, in recent years, there has been a cowling divided into two parts into left and right side cowls and a part divided into three parts into left and right side cowls and a center cowl. In the case of such a cowling, the shape tends to change. In addition, the mounting of the lamp unit is more troublesome. Therefore, conventionally, for the purpose of facilitating the alignment of the mounting hole with the screw hole, the mounting hole is also made to be a long hole larger than the screw hole. Is required for a long period of time, it is necessary to fix it so as not to generate a positional shift due to the long hole.
[0006]
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has a headlamp mounting structure for a motorcycle in which a mounting hole of a lamp unit can be easily aligned with a screw hole of a cowling and the lamp unit can be quickly mounted on the cowling. The purpose is to provide.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a motorcycle headlamp mounting structure according to the present invention is a mounting structure for mounting a lamp unit on a cowling mounted on a front portion of a vehicle body, and is provided on one of the cowling and the lamp unit. On the other hand, a knock hole is provided on the other side, which is inserted into the knock pin and temporarily fixes the lamp unit to the cowling, and a mounting flange formed with a mounting hole through which the fastening member is inserted is provided in the lamp unit. The knock pin or the knock hole is formed in the vicinity of the mounting hole of the mounting flange, and the lamp unit is fastened to the cowling by a fastening member while being temporarily fixed to the cowling.
[0008]
In this motorcycle headlamp mounting structure, by inserting a knock pin into a knock hole, accurate positioning of a fastening member such as a fixing screw is performed, and a lamp unit is temporarily fixed to a cowling. The lamp unit can be fixed to the cowling by the fastening member. Therefore, in the headlamp mounting structure, even if the lamp unit is heavy, the lamp unit can be easily positioned and quickly mounted on the easily deformable cowling.
[0009]
In a preferred embodiment of the present invention, the knock pin protruding rearward is provided at least at two places on the inner surface of the cowling. According to this configuration, when the lamp unit is attached to the cowling from behind, when the knock pins are inserted into the two knock holes of the lamp unit, the knock pins can be visually recognized from the rear, so that the lamp unit is temporarily fixed to the cowling. After that, the holding of the lamp unit by hand can be released and the fastening operation of the fastening member can be easily performed.
[0010]
Furthermore, in a preferred embodiment of the present invention, a mounting flange through which the fastening member is inserted is provided in the lamp unit, and the knock pin or the knock hole is formed in the mounting flange. According to this configuration, since the common mounting flange is provided with, for example, a mounting hole through which the fastening member is inserted and the knock pin or the knock hole, the number of mounting flanges can be reduced, and the positioning means including the knock pin and the knock hole is provided. Since the mounting hole is present in the vicinity, a dimensional error in manufacturing between the positioning means and the mounting hole is reduced. Therefore, there is an advantage that it is easy to insert a fixing screw or the like into the mounting hole after confirming the positioning.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view of a main part of a motorcycle having a motorcycle headlamp mounting structure according to an embodiment of the present invention. In FIG. Is shown in FIG. In this motorcycle, a front fork 4 supporting a front wheel (not shown) is rotatably mounted around a steering shaft 2 supported by a head pipe 3 at a front end of a body frame F. The steering wheel 7 is configured to be steered by a handle 7 fixed to an upper bracket 15 that supports the upper end of the second bracket 2. A main pipe 5 and a down tube 6 are fixed to the head pipe 3, and an engine 8 is supported by the main pipe 5 and the down tube 6.
[0012]
In this embodiment, the cowling support member includes a cowl stay 9 connected to the vehicle body frame F, and a sub stay 10 connected to the cowl stay 9. It has a configuration corresponding to the divided one. In this cowling mounting structure, a lamp unit 11 and a side mirror 13 are mounted on the cowling 1, respectively, and the cowling 1 is mounted on a sub-stay 10, a sub-assembly 14 is formed in advance, and the sub-stay 10 of the sub-assembly 14 is mounted on the vehicle body. It is configured to be attached to the cowl stay 9 fixed to the frame F.
[0013]
As shown in FIG. 2, the cowl stay 9 has a pair of left and right support pipes 18 extending in the front-rear direction and a front end and a vicinity of the front end of the pair of support pipes 18, 18 connected to each other by a connection pipe 19 and an auxiliary pipe 20 extending in the left-right direction. A center bracket 21 that is connected and extends rearward is joined to the center of the connecting pipe 19. In the cowl stay 9, the rear end of the center bracket 21 is fitted to the outside of the support bracket 30 of the head pipe 3, and the fixing screws 31A, 31A are attached to the mounting holes 21a, 21a of the center bracket 21 and the mounting holes of the support bracket 30. The center bracket 21 is fixed to the head pipe 3 by being inserted through 3a and screwed into the nuts 32,32. Also, the cowl stay 9 is screwed into a mounting bracket 34 provided on the down tube 6 of the vehicle body frame F of FIG. 1 by screwing a fixing screw 31B inserted through a pair of mounting pieces 27 provided on the support pipe portions 18, 18. It is fixed to the body frame F. The connecting pipe portion 19 of the cowl stay 9 is provided with a support plate portion 22 for attaching the sub stay 10, and positioning projections 24 are provided at predetermined intervals on both sides of the support plate portion 22 in the connecting pipe portion 19. It is attached with.
[0014]
In this embodiment, as shown in FIG. 2, the cowling 1 is divided into left and right side cowls 38, 39, and both side cowls 38, 39 have a left-right symmetric shape. The side cowls 38, 39 are provided with mounting recesses 41, 41 for the side mirror 13 (FIG. 1) on the front end upper surface, and a windshield ( FIG. 1) A pair of mounting holes 36, 36 for screwing 17 are formed. Mounting brackets (only the right side cowl 39 is shown) 42 and 43 are integrally formed at upper and lower portions on the inner surface side of each of the side cowls 38 and 39, and are mounted on the upper mounting bracket 42. A hole 42a and a small-diameter knock hole 42b are formed, and a knock pin 43b projecting rearward and a mounting hole 43a are provided in the lower mounting bracket 43 so as to be positioned vertically. As will be described later, a welding nut portion is provided on the front side of each of the mounting brackets 42 and 43 so as to match the mounting holes 42a and 43a.
[0015]
The sub stay 10 has a main body 10a formed with a pair of mounting holes 10b, 10b for screwing to the support plate 22 of the cowl stay 9. Further, mirror support portions 10c, 10c are provided at both ends of the main body portion 10a, and a pair of female screw members 37, 37 are fixed to the mirror support portions 10c, 10c, respectively.
[0016]
Next, the procedure for assembling the sub-assembly 14 will be described. The female screw members 37 of the mirror support portions 10c of the sub stay 10 are inserted from below into a pair of insertion holes 36 provided in the mounting recesses 41 of the side cowls 38 and 39 of FIG. The lower part of the side mirror 13 is fitted into the mounting recess 41 of FIG. 2, and a fixing screw (not shown) is screwed into the female screw member 37. Thereby, both side cowls 38 and 39 and side mirror 13 are attached to sub stay 10. Further, the center cowl 12 is attached to the lower front portion of each of the side cowls 38 and 39 attached to the sub stay 10 using a fixing screw 31D, a washer 48, and a rubber nut 49. Furthermore, a transparent or lightly colored windshield 17 (FIG. 1) is attached to a plurality of mounting holes 25 on the upper front part of each of the side cowls 38 and 39 using the same fixing means as the center cowl 12. Can be Finally, the lamp unit 11 is attached to both side cowls 38 and 39, and the sub-assembly 14 is assembled. The attachment of the lamp unit 11 will be described later. Further, the sub-stay 10 of the sub-assembly 14 is fixed to the cowl stay 9, and both side cowls 38, 39 are fixed to the vehicle body, which will also be described later.
[0017]
3 (a) to 3 (c) show a partially cut plan view, a front view and a right side view of the lamp unit 11, respectively. FIG. 4 shows a rear view of the lamp unit 11 corresponding to the mounting positional relationship with the cowling. It is. The lamp unit 11 shown in FIGS. 3A to 3C is a two-lamp type in which two head lamps 40, 40 are integrated, and is a front lens having two left and right lens surfaces 44, 44. And a rear body portion 46 coupled to the lens portion 45. Light emitting sources 35 are attached to the body part 46 of FIG.
[0018]
As shown in FIG. 4, upper mounting flanges 52, 52 are provided at upper corners of the upper portion of the body portion 46, respectively. Are provided with lower mounting flanges 53, 53, respectively. As shown in FIG. 3 (b), the upper mounting flanges 52, 52 are formed with mounting holes 52a, 52a and knock pins 54, 54 projecting forward. On the other hand, mounting holes 53a, 53a and knock holes 57, 57 are formed in the lower mounting flanges 53, 53. The knock pins 54, 54 of the upper mounting flanges 52, 52 shown in FIG. 4 are inserted into the knock holes 42b, 42b of the mounting brackets 42, 42 above the side cowls 38, 39, and the mounting holes 52a, 42b of the upper mounting flanges 52, 52. 52a is fitted to the mounting holes 42a, 42a of the mounting brackets 42, 42. The rearwardly projecting knock pins 43b provided on the mounting brackets 43, 43 below the side cowls 38, 39 are inserted into the knock holes 57, 57 of the lower mounting flanges 53, 53, respectively. The mounting holes 53a are matched with the mounting holes 43a of the mounting brackets 43. Further, the body part 46 has two hooks having insertion holes 59, 59 shown in FIG. 4 in which the positioning projections 24 of the cowl stay 9 of FIG. 1 are inserted between the upper mounting flanges 52, 52 on the upper end surface. Stop pieces 58, 58 project upward.
[0019]
FIG. 5 is a horizontal sectional view taken along the upper mounting bracket 42 of the left side cowl 38, FIG. 6A is a horizontal sectional view taken along the lower mounting bracket 43 of the left side cowl 38, and FIG. FIG. 7B is a sectional view taken along line BB of FIG. A U-shaped fitting 51 having a welding nut portion 50 is fitted to the mounting brackets 42 and 43 shown in FIGS. 5 and 6, respectively, in such an arrangement that the welding nut portion 50 matches the mounting holes 42a and 43a.
[0020]
Next, a procedure for attaching the lamp unit 11 of FIG. 2 to the cowling 1 integrated by the side cowls 38 and 39 and the sub stay 10 will be described. The operator positions the cowling 1 from behind so that the knock pins 43b, 43b of the cowling 1 are inserted into the knock holes 57, 57 on both lower sides while holding the lamp unit 11 by hand. Here, as shown in FIG. 6B, when the worker visually recognizes that the respective pin heads of the two knock pins 43b, 43b come out of the knock holes 57, 57, the lamp unit 11 After confirming that the lamp unit 11 is temporarily fixed to the cowling 1 at two places, the holding of the lamp unit 11 can be released, and the subsequent mounting operation can be easily performed. If the dowel pins 43b, 43b are colored in a different color from the mounting flange 53 of the lamp unit 11, the temporarily fixed state can be more easily visually recognized.
[0021]
At this time, the knock pins 54 on both sides of the upper part of the lamp unit 11 in FIG. 4 are positioned by inserting the lower knock pins 43b, 43b into the knock holes 57, 57, as shown in FIG. 42b, 42b is securely inserted. At the same time, the mounting holes 53a, 53a on the lower side of the lamp unit 11 shown in FIG. 2 are accurately positioned on the mounting holes 43a, 43a of the cowling 1, and the mounting holes 52a, 52a on the upper side are correctly positioned on the mounting holes 42a, 42a of the cowling 1, respectively. Is consistent with In this state, by inserting the fixing screws 31E and 31F into the fitting nuts 53a, 43a, 52a and 42a and screwing them into the welding nut portion 50 (FIG. 5), the lamp unit 11 is attached to both side cowls 38 and 39. It is attached. When the fixing screws 31E and 31F are fastened, since the lamp unit 11 is securely fixed to the cowling 1 as described above, it is not necessary to hold the lamp unit 11, and the lamp unit 11 is lightly attached to the cowling 1. Since it is only necessary to press, the screwing operation can be easily performed. The fixing screws 31E and 31F constitute a fastening member of the present invention.
[0022]
Therefore, in the headlamp mounting structure, even if the pair of left and right headlamps 40, 40 is integrated and the weight of the lamp unit 11 is increased, the lamp unit 11 can be easily attached to the cowling 1 which is easily changed. Can be positioned and mounted quickly. 3B, mounting holes 52a, 52a and knock pins 54, 54 are formed in the upper mounting flanges 52, 52, and mounting holes 53a, 53a and knock holes 57, Since the mounting flanges 57 are formed, there is an advantage that the number of mounting flanges to be formed can be reduced as compared with the case where one mounting flange is assigned to each mounting hole and knock pin. Furthermore, since the mounting holes 52a, 53a of the lamp unit 11 shown in FIG. 4 and the mounting holes 42a, 43a of the cowling 1 are accurately matched by inserting the knock pins 43b, 54 into the knock holes 57, 42b, the conventional art is used. It is not necessary to form it as large as shown in FIG. As a result, the lamp unit 11 is held by the cowling 1 even when the vibration during traveling is received for a long period of time, and the displacement is suppressed.
[0023]
The sub-assembly 14, in which the lamp unit 11 is mounted on the cowling 1 of FIG. 2 as described above, is mounted on the vehicle body frame F as follows. That is, the subassembly 14 first inserts the positioning projections 24 of the cowl stay 9 into the insertion holes 59 of the pair of hooking pieces 58 on the upper part of the lamp unit 11, so that the cowl stay 9 is inserted into the cowl stay 9. It is temporarily stopped. In a state where the sub-assembly 14 does not need to be held, the sub-stay 10 of the sub-assembly 14 includes the collar 60 and the rubber grommet (vibration-proof member) fitted in the pair of mounting holes 10b, 10b in FIG. The fixing screw 31 </ b> G, which is a fixing member, is inserted through 61 and screwed into the screw hole 66 of the cowl stay 9, thereby being screwed to the cowl stay 9.
[0024]
In this way, since the sub-assembly 14 is connected to the cowl stay 9 via the vibration damping grommet 61, even if the vehicle body vibration mainly due to engine vibration is transmitted to the cowl stay 9, the vehicle body vibration is absorbed by the grommet 61, Since the transmission to the cowling 1 and the lamp unit 11 is suppressed, the lamp unit 11 is held by the cowling 1, and the displacement is more effectively suppressed.
[0025]
The center of each side cowl 38, 39 is aligned with the mounting hole 62 and the female screw 68 of the radiator cover 67 fixed to the radiator 63 shown in FIG. It is fixed by screwing a fixing screw (not shown) into the female screw portion 68. Further, the rear ends of the side cowls 38 and 39 in FIG. 2 are aligned with the mounting holes 69 and the insertion holes 29 at the rear end of the cowl stay 9, and the fixing screws (not shown) are attached to the cowl stays 9. Is fixed by screwing it into a welding nut (not shown). Thus, the mounting of the sub-assembly 14 to the cowl stay 9 is completed.
[0026]
【The invention's effect】
As described above, the motorcycle headlamp mounting structure according to the present invention can accurately align the fastening member by inserting the knock pin into the knock hole, and can temporarily fix the lamp unit to the cowling, In this state, the lamp unit can be fixed to the cowling by the fastening member. Therefore, in the headlamp mounting structure, even if the lamp unit is heavy in weight, the lamp unit can be easily positioned on the cowling and quickly mounted.
[Brief description of the drawings]
FIG. 1 is a side view of a main part of a motorcycle equipped with a motorcycle headlamp mounting structure according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view showing the headlamp mounting structure according to the first embodiment.
FIGS. 3A to 3C are a partially cut plan view, a front view, and a right side view, respectively, showing a lamp unit in the headlamp mounting structure according to the first embodiment.
FIG. 4 is a rear view showing a state where the lamp unit is attached to a cowling.
FIG. 5 is a horizontal cross-sectional view of the left side cowl in the headlamp mounting structure according to the first embodiment, taken along an upper mounting bracket.
6A is a horizontal cross-sectional view of the left side cowl of the above, cut along the lower mounting bracket 3, and FIG. 6B is a cross-sectional view taken along line BB of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Cowling, 11 ... Lamp unit, 42b, 57 ... Knock hole, 43b, 54 ... Knock pin, 52, 53 ... Mounting flange, 31E, 31F ... Fixing screw (fastening member), F ... Body frame (body)

Claims (2)

A headlamp mounting structure for mounting a lamp unit on a cowling mounted on the front of the vehicle body,
A knock pin is provided on one of the cowling and the lamp unit, and on the other, a knock hole is provided which is inserted into the knock pin and temporarily fixes the lamp unit to the cowling,
A mounting flange provided with a mounting hole through which the fastening member is inserted in the lamp unit is provided, and the knock pin or the knock hole is formed near the mounting hole of the mounting flange,
A headlamp mounting structure for a motorcycle, wherein the lamp unit is fastened to the cowling by the fastening member while being temporarily fixed to the cowling. The motorcycle headlamp mounting structure according to claim 1, wherein the knock pin protruding rearward is provided at at least two places on an inner surface of the cowling.

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