JP2019064298A - Headlight support structure for straddle type vehicles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a headlight support structure of a saddle-mounted vehicle capable of improving the appearance around a headlight attached to an upper part of a bottom bridge. SOLUTION: A headlight (11) arranged in front of a head pipe (10) provided at a front end of a vehicle body frame (3) of a saddle-mounted vehicle (1) and a front wheel (WF) are rotatably shafted. It has a bottom bridge (12) that supports the supporting front fork (15) and is disposed below the head pipe (10). The legs (52) extending downward from the headlight (11) and the recesses (61) formed on the upper surface (57) of the bottom bridge (12) are provided. A cylindrical shaft (60) for fixing the headlight (11) to the bottom bridge (12) is provided at the lower end (52c) of the leg (52), and the headlight (11) is fixed to the bottom bridge (12). The cylindrical shaft (60) fits in the recess (61). [Selection diagram] FIG. 10

Description

  The present invention relates to a headlight support structure for a saddle-ride type vehicle, and more particularly to a headlight support structure for a saddle-ride type vehicle applied to a headlight located in front of a head pipe provided at a front end of a vehicle body frame.

  2. Description of the Related Art Conventionally, there is known a configuration in which a headlight of a straddle-type vehicle is disposed in front of a head pipe which is provided at the front end of a vehicle body frame and supports a front wheel suspension device in a steerable manner.

  According to Patent Document 1, in a motorcycle having a bottom bridge that supports upper portions of a pair of left and right front forks that pivotally supports front wheels rotatably, and has a bottom bridge that is pivotally supported by head pipes, A headlight support structure is disclosed that fixes a pair of extending left and right mounting stays on the top surface of the bottom bridge.

  Further, Patent Document 2 discloses a configuration in which one mounting stay extending downward from the center in the vehicle width direction of a headlight of a motorcycle is fixed to the upper surface of a bottom bridge.

JP 2009-220677 A JP 2005-119485 A

  However, the configurations of Patent Documents 1 and 2 both fix the fastening portion provided at the lower end portion of the mounting stay to the upper surface of the bottom bridge, so that the fastening portion is visually recognized from the outside. There is a problem that the appearance is reduced.

  It is an object of the present invention to provide a headlight support structure for a straddle-type vehicle that can solve the problems of the prior art and improve the appearance around the headlight fixed to the top of the bottom bridge. .

  In order to achieve the above object, the present invention provides a headlight (11) disposed in front of a head pipe (10) provided at the front end of a vehicle body frame (3) of a straddle-type vehicle (1) A headlight support structure for a saddle-ride type vehicle, comprising: a front fork (15) for rotatably supporting (WF) and a bottom bridge (12) disposed below the head pipe (10) A leg (52) extending downward from the headlight (11) and a recess (61) formed on an upper surface (57) of the bottom bridge (12); the leg (52) A fastening member (60) for fixing the headlight (11) to the bottom bridge (12) is formed at the lower end portion (52c) of the bottom bridge (12). To upon fixing, the fastening member (60) there is a first feature that can fit in the recess (61).

  The headlight (11) is provided with a lid member (58) covering the upper portion of the fastening member (60) by fastening the lid member (58) to the bottom bridge (12). The second feature is that it is fixed to 12).

  In addition, when the headlight (11) is fixed to the bottom bridge (12), the top surface of the lid member (58) is flush with the top surface (57) of the bottom bridge (12). There are 3 features.

  The fourth feature is that the leg (52) is a single member located at the center in the vehicle width direction.

  The fastening member (60) is a cylindrical shaft extending in the vehicle width direction from the leg (52), and the length dimension (W2) of the fastening member (60) is the car of the leg (52) A fifth feature lies in the fact that it is longer than the widthwise dimension (W1).

  In addition, a rear surface (68), in which the recess (61) is directed substantially perpendicularly to the upper surface (57) of the bottom bridge (12), and an inclination, which is inclined to the vehicle front side with respect to the rear surface (68) A rear surface (63) of the recess (61) and an inclined surface (63) when the headlight (11) is fixed to the bottom bridge (12), and the leg (52). A sixth feature of the present invention is that a gap is formed between the front and rear surfaces of the headlight so as to allow the headlight (11) to swing back and forth.

  Further, a front surface (52a) substantially parallel to the vertical direction of the headlight (11), left and right side surfaces (52b) perpendicular to the front surface (52a), and the front surface (52a) The lower surface (52c) of the leg (52) has a lower surface surrounded by a rear surface (52d) which is inclined backward with respect to the rear surface and the thickness dimension in the longitudinal direction of the vehicle body decreases toward the lower side of the vehicle. , And a seventh feature in that it is shaped to have an arc cross section.

  Furthermore, when the headlight (11) is fixed to the bottom bridge (12), the back surface (52d) of the leg (52) is substantially perpendicular to the top surface (57) of the bottom bridge (12) There is an eighth feature in that it points in a direction.

  According to the first feature, the headlight (11) disposed in front of the head pipe (10) provided at the front end of the vehicle body frame (3) of the straddle-type vehicle (1) and the front wheel (WF) A headlight support structure for a saddle-ride type vehicle, comprising a front fork (15) rotatably supported rotatably and a bottom bridge (12) disposed below the head pipe (10). (11) and a recess (61) formed on the upper surface (57) of the bottom bridge (12), and a lower end portion of the leg (52) 52c), a fastening member (60) for fixing the headlight (11) to the bottom bridge (12) is formed, and when the headlight (11) is fixed to the bottom bridge (12) To Since the fastening member (60) is housed in the recess (61), when the headlight is fixed to the bottom bridge, the fixed portion becomes difficult to visually recognize from the outside, and it is possible to improve the appearance around the headlight Become.

  According to a second feature, the headlight (11) is provided with a lid member (58) covering the upper part of the fastening member (60), and the lid member (58) is fastened to the bottom bridge (12). Is fixed to the bottom bridge (12), the fastening member side can be made simple by giving a function of fixing the headlight to the bottom bridge on the lid member side.

  According to the third feature, when the headlight (11) is fixed to the bottom bridge (12), the upper surface of the lid member (58) faces the upper surface (57) of the bottom bridge (12) Since the head light is fixed to the bottom bridge, the cover member does not protrude from the upper surface of the bottom bridge, and only the outer diameter line of the cover member is visually recognized around the leg. It is possible to further enhance the appearance of the surroundings.

  According to the fourth feature, since the leg (52) is a single member located at the center in the vehicle width direction, the headlight can be fixed by the leg having a simple appearance.

  According to the fifth feature, the fastening member (60) is a cylindrical shaft extending in the vehicle width direction from the leg (52), and the length dimension (W2) of the fastening member (60) is the leg Since the length (W1) of the part (52) in the vehicle width direction is longer, securing the length of the fastening member sufficiently enables the headlight to be stably fixed.

  According to a sixth feature, a rear surface (68) in which the recess (61) is directed substantially perpendicularly to the upper surface (57) of the bottom bridge (12), and a vehicle body relative to the rear surface (68) And an inclined surface (63) inclined to the front side, and when the headlight (11) is fixed to the bottom bridge (12), the rear surface (68) of the recess (61) and the inclined surface (63) A gap is formed between the front and rear surfaces of the leg portion (52) so that the headlight (11) can be rocked back and forth, so that the cylindrical shaft can be formed without interfering with parts such as a head pipe. Optical axis adjustment can be performed by rocking the headlight as the rocking axis in the longitudinal direction of the vehicle body.

  According to a seventh feature, the leg (52) has a front surface (52a) substantially parallel to the vertical direction of the headlight (11), left and right side surfaces (52b) perpendicular to the front surface (52a) The lower end portion of the leg portion (52) is surrounded by a rear surface (52d) inclined backward with respect to the front surface (52a), and has a wedge shape in which the thickness dimension in the vehicle longitudinal direction becomes smaller toward the lower side of the vehicle body. Since the lower surface of (52c) has a shape having an arc cross section, the shape of the leg can be made a shape suitable for forward and backward rocking motion while securing the support rigidity of the headlight. .

  According to an eighth feature, when the headlight (11) is fixed to the bottom bridge (12), the back surface (52d) of the leg (52) is the top surface (57) of the bottom bridge (12). Since it points in a direction substantially perpendicular to), when the fixed part of the leg is viewed, an impression can be given that it is a natural structure in which straight lines are orthogonal to each other.

FIG. 1 is a left side view of a motorcycle to which a headlight support structure for a straddle-type vehicle according to an embodiment of the present invention is applied. It is a partially enlarged front view of a motorcycle. FIG. 2 is a rear view of a steering system of the motorcycle. It is the enlarged view which looked at the fastening part of the headlight from the vehicle width direction right side. It is a perspective view of a headlight. It is a perspective view of a bottom bridge. It is a perspective view of a lid member. It is the enlarged view which looked at the fastening part of the headlight from the vehicle width direction right side. It is the IX-IX sectional view taken on the line of FIG. It is XX sectional drawing of FIG.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a left side view of a motorcycle 1 to which a headlight support structure for a straddle-type vehicle according to an embodiment of the present invention is applied. A vehicle body frame 3 of a motorcycle 1 as a straddle-type vehicle includes a main frame 5 extending in the rearward direction of the vehicle body from a head pipe 10 and curving downward, in the vehicle width direction center. A pair of left and right underframes 16 extend downward from the vehicle body from a lower position of the head pipe 10, and a pair of left and right connecting pipes 6 are bridged between the middle portion of the underframe 16 and the main frame 5. It has been passed.

  At the lower end portion of the main frame 5, a pair of left and right pivot plates 19 provided with pivots 18 pivotally supporting the swing arm 23 are connected. A steering stem (see FIG. 3) is rotatably supported on the head pipe 10. A top bridge 9 and a bottom bridge 12 for supporting a pair of left and right front forks 15 are fixed to the upper and lower sides of the steering stem. There is. A steering handle 7 and a meter unit 8 are fixed to the top bridge 9. The headlight 11 is disposed in front of the head pipe 10. A front wheel WF is rotatably supported at a lower end portion of the front fork 15, and a front fender 14 covering an upper portion of the front wheel WF is supported at an intermediate position of the front fork 11.

  Below the main frame 5, a power unit P in which a parallel 4-cylinder 4-cycle engine and a transmission are integrally formed is fixed. The swing arm 23 pivotally supported by the pivot 18 is suspended by the rear cushion 30 from the vehicle body frame 3. The rotational driving force of the power unit P is transmitted to the rear wheel WR via the drive chain 24. A chain cover 99 covering the upper side of the drive chain 24 is attached to the upper part of the swing arm 23. A throttle body 4 including a throttle valve and a fuel injection device is attached to the back side of the power unit P, and combustion gas of the power unit P is guided to a muffler at the rear of the vehicle body via an exhaust pipe 17. A cooler 13 is disposed in front of the power unit P, and a horn 44 is disposed above the cooler 13.

  A fuel tank 2 is disposed on the top of the main frame 5. A seat 31 in which a front seat and a rear seat are integrally formed is disposed at the rear of the fuel tank 2. A rear frame unit F including a pair of left and right upper rear frames 28 and a lower rear frame 29 is attached to the rear of the main frame 5, and the seat 31 is disposed close to the upper portion of the upper rear frame 28. An ABS modulator 27 is disposed between the left and right lower rear frames 29 for controlling the brake hydraulic pressure by an electric actuator. A pair of side covers 98 is disposed between the throttle body 4 and the ABS modulator 27 in the vehicle width direction.

  At the rear of the pivot plate 19 is fixed a step plate 21 which supports the driver's step 20 and a support frame 78 which supports the pillion step 79 for the passenger. At the lower part of the pivot plate 19, a side stand 22 is pivotally supported. A rear fender 26 that supports the taillight 25 is disposed behind the seat 31.

  FIG. 2 is a partially enlarged front view of the motorcycle 1. Handle switches 32 and 36 are attached to both sides of the handle pipe 38 constituting the steering handle 7. A front wheel brake lever 37 is supported on the right side in the vehicle width direction of the steering wheel pipe 38 so as to be able to swing, and a clutch lever 35 is supported on the left side in the vehicle width direction to be swingable. Reservoir tanks 33 of hydraulic master cylinders are disposed on the inner side in the vehicle width direction of the steering wheel switches 32, 36, respectively. Below the left and right reservoir tanks 33, flashers 34 are respectively disposed.

  The meter unit 8 including the large diameter first meter 40 and the small diameter second meter 41 is supported by the mounting stay 39 on the top bridge 9. The headlight 11 is fixed to the top of the bottom bridge 12.

  FIG. 3 is a rear view of the steering system of the motorcycle 1. A so-called triple tree, which is a component for supporting the left and right front forks 15 on the vehicle body frame 3 in a steerable manner, has front forks 15 above and below the steering stem 49 pivotally supported by the head pipe 10. And a bottom bridge 12 are attached. The top bridge 9 supporting the upper end of the front fork 15 with the clamp portion 48 has a pair of left and right handle holders 45 attached to the upper portion of the main body 47 and is fixed to the upper end portion of the steering stem 49 by the stem nut 46 There is.

  The bottom bridge 12 having the fixing portion 56 for fixing the lower end portion of the steering stem 49 is provided with the clamp portion 54 forming the through hole 59 of the front fork 15 at the left and right end portions of the main body portion 55. . A connection port 53 of the power supply harness is provided on the back side of the housing 50 of the headlight 11. The headlight 11 is fixed to the top of the bottom bridge 12 by a leg 52 at the center in the vehicle width direction extending downward of a housing 50 made of synthetic resin or the like. The lower end portion of the leg portion 52 is embedded in the upper portion of the bottom bridge 12, and a lid member 58 (dotted portion) which is flush with the upper surface 57 of the bottom bridge 12 is provided on the left and right in the vehicle width direction.

  FIG. 4 is an enlarged view of the fastening portion of the headlight 11 as viewed from the right side in the vehicle width direction. FIG. 5 is a perspective view of the headlight 11. The leg 52 extending downward from the housing 50 of the headlight 11 has a front surface 52a substantially parallel to the vertical direction of the headlight 11, left and right side surfaces 52b perpendicular to the front surface 52a, and a back surface 52d inclined backward to the front surface 52a. Thus, the thickness dimension in the longitudinal direction of the vehicle body is a wedge shape which becomes smaller as it goes downward. The lower surface of the lower end portion 52c of the leg portion 52 is shaped to have an arc cross section.

  The head pipe 10 pivotally supporting the steering stem 49 is inclined rearward with respect to the horizontal surface so that the upper end side is positioned rearward of the vehicle body from the lower end side. When the steering stem 49 is pivotally supported by the head pipe 10, the upper surface 57 of the bottom bridge 12 is inclined rearward so that the rear side of the vehicle body is located lower than the front side of the vehicle body. Thereby, when the headlight 11 is fixed to the bottom bridge 12, the front surface 52 a of the leg 52 is directed substantially in the vertical direction, and the back surface 52 d of the leg 52 is substantially perpendicular to the upper surface 57 of the bottom bridge 12. It will be oriented.

  When the headlight 11 is attached to the bottom bridge 12, the lower end 52c of the leg 52 embedded in the bottom bridge 12 is provided with a cylindrical shaft 60 as a fastening member extending in the lateral direction of the vehicle. . The cylindrical shaft 60 not only functions as a fastening member for fixing the headlight 11 to the bottom bridge 12 but also functions as a swing axis when the housing 50 is tilted back and forth to adjust the optical axis of the headlight 11. . The dimension W2 obtained by adding the lengths Wa of the left and right cylindrical shafts 60 can be set larger than the dimension W1 in the vehicle width direction of the leg portion 52. As a result, the headlight 11 can be stably fixed by securing a sufficient tightening length. The cylindrical shaft 60 may be formed integrally with the leg portion 52, may be a pipe member, or may be a separate part penetrating the leg portion 52.

  FIG. 6 is a perspective view of the bottom bridge 12. 7 is a perspective view of the lid member 58, and FIG. 8 is an enlarged view of a fastening portion of the headlight 11 as viewed from the right side in the vehicle width direction. FIG. 6 shows a state in which only the left side of the lid member 58 having a symmetrical shape is removed, and FIG. 7 shows only the lid member 58R on the right side. Further, FIG. 8 shows a state in which the leg portions 52 of the headlight 11 are removed, and the left and right cover members 58L and 58R are respectively stored in predetermined positions.

  As shown in FIG. 6, on the front side of the fixing portion 56 of the bottom bridge 12, a recess 61 in which the lower end 52c of the leg 52, the cylindrical shaft 60 and the lid member 58 are accommodated is formed. A central bottom surface 62 corresponding to the lower end portion 52 c of the leg 52 and an inclined surface 63 corresponding to the front surface 52 a of the leg 52 are provided at the center of the recess 61 in the vehicle width direction. On the outer side in the vehicle width direction, a bottom surface 67 of an arc section contacting the lower surface side of the cylindrical shaft 60 and an opposing surface 65 located on the front and rear of the bottom surface 67 and facing the lid member 58 are formed. Through holes 66 through which bolts inserted from the back surface side of the bottom bridge 12 pass are formed in the front and rear opposing surfaces 65.

  Referring to FIG. 7, on the lower surface side of lid member 58 (58 R), a ceiling surface 58 a of an arc section contacting with the upper surface side of cylindrical shaft 60 and an abutment surface 58 b abutting on opposing surface 65 on the front side of recess 61. An opposite surface 58c opposite to the opposite surface 65 on the rear side of the recess 61 and a screw hole 58d into which a bolt is screwed are formed. As a result, when the leg portion 52 is stored in the recess 61 and the lid member 58 is fastened with a bolt, the movement of the cylindrical shaft 60 sandwiched by the recess 61 and the lid member 58 is restricted. As shown in FIG. 8, between the opposing surface 65 on the rear side of the recess 61 and the opposing surface 58c of the lid member 58, a gap as an interference of a bolt is formed, and adjustment of tightening strength is made possible. There is.

  The bottom bridge 12 and the lid member 58 can be made of metal or the like of the same color. As a result, the outer diameter line of the lid member 58 is only visually recognized around the leg 52, and the appearance of the fixed portion of the headlight 11 can be further enhanced.

  FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 10 is a cross-sectional view taken along line X-X of FIG. As shown in FIG. 9, when the leg 52 is housed in the recess 61 and the lid member 58 is fixed, the rear surface 68 of the recess 61 corresponding to the back surface 52 d of the leg 52 is against the upper surface 57 of the bottom bridge 12. It is oriented in a substantially vertical direction. The recess 61 formed by the rear surface 68 and the inclined surface 63 has a gap between the back surface 52d and the front surface 52a of the leg 52 so that the leg 52 can be slightly rocked in the vehicle longitudinal direction. Thus, even after the headlight 11 is fixed to the bottom bridge 12, the headlight 11 is swung back and forth by loosening the bolt for fixing the lid member 58 a little (about 4 degrees in this embodiment). It becomes possible to perform axis adjustment.

  Further, the back surface 52 d of the leg portion 52 is a curved surface convex toward the front side of the vehicle body so as to correspond to the shape of the head pipe 10. As a result, even when an external force is applied to the headlight 11 from the front of the vehicle body and the leg 52 is inclined backward, the back surface 52 d of the leg 52 is less likely to contact the head pipe 10.

  As shown in FIG. 10, while the width dimension of the leg portion 52 is smaller than the width dimension of the head pipe 10, the contact length effective for fastening is obtained by extending the cylindrical shaft 60 as the fastening member laterally in the vehicle width direction. Can be secured to the bottom bridge 12 in a stable manner. Further, the bottom bridge 12 has a structure in which the bottom surface is lightened for weight reduction, and a bolt passed through the through hole 66 for fixing the lid member 58 is not visually recognized from the front of the vehicle body, and further appearance Sex is enhanced. Further, as shown in FIG. 3, in the front view of the vehicle body, the leg portion 52 of the headlight 11 is only visible from a slight gap between the outer diameter of the headlight 11 and the bottom bridge 12. It can give a clear impression on the appearance of the surroundings.

  As described above, according to the headlight support structure of the saddle-ride type vehicle according to the present invention, the leg portion 52 extending from the headlight 11 to the lower side of the vehicle body and the recess 61 formed on the upper surface 57 of the bottom bridge 12 The lower end 52c of the leg 52 is provided with a cylindrical shaft 60 for fixing the headlight 11 to the bottom bridge 12. When the headlight 11 is fixed to the bottom bridge 12, the cylindrical shaft 60 has a recess 61. When the headlight 11 is fixed to the bottom bridge 12, it is difficult to visually recognize from the outside when the headlight 11 is fixed to the bottom bridge 12, and the appearance around the headlight 11 can be improved.

  Note that the form of the motorcycle, the structure of the headlights and the housing, the shape and material of the legs and cylindrical shaft, the shape and material of the bottom bridge, the shape and structure of the recess, the shape and material of the lid member, etc. Various modifications are possible without limitation. The headlight support structure for a straddle-type vehicle according to the present invention is not limited to motorcycles, and can be applied to straddle-type vehicles such as three-wheeled vehicles and four-wheeled vehicles.

  DESCRIPTION OF SYMBOLS 1 ... Motorcycle (striking type vehicle), 3 ... Body frame, 9 ... Top bridge, 10 ... Head pipe, 11 ... Head light, 12 ... Bottom bridge, 15 ... Front fork, 49 ... Steering stem, 52 ... Leg part , 52a: front surface, 52b: left and right side surfaces, 52c: lower end portion, 52d: back surface, 57: upper surface, 61: concave portion, 60: cylindrical shaft (fastening member), 63: inclined surface, 68: rear surface, W1: leg portion Dimension in the width direction of the vehicle, W2: Length of the cylindrical shaft, WF: front wheel

Claims (8)

A headlight (11) disposed in front of a head pipe (10) provided at the front end of a vehicle body frame (3) of a saddle-ride type vehicle (1) and a front fork rotatably supporting a front wheel (WF) A headlight support structure for a saddle-ride type vehicle, comprising: a bottom bridge (12) supporting (15) and disposed below the head pipe (10);
A leg (52) extending downward from the headlight (11);
And a recess (61) formed on the upper surface (57) of the bottom bridge (12);
A fastening member (60) for fixing the headlight (11) to the bottom bridge (12) is formed at the lower end (52c) of the leg (52),
A headlight support structure for a saddle-ride type vehicle, wherein the fastening member (60) is accommodated in the recess (61) when the headlight (11) is fixed to the bottom bridge (12). A lid member (58) covering an upper portion of the fastening member (60);
The saddle-ride type according to claim 1, wherein the headlight (11) is fixed to the bottom bridge (12) by fastening the lid member (58) to the bottom bridge (12). Vehicle headlight support structure.   When the headlight (11) is fixed to the bottom bridge (12), the top surface of the lid member (58) is flush with the top surface (57) of the bottom bridge (12). The headlight support structure for a straddle-type vehicle according to claim 1.   The headlight support structure for a straddle-type vehicle according to any one of claims 1 to 3, wherein the leg (52) is a single member located at the center in the vehicle width direction. The fastening member (60) is a cylindrical shaft extending in the vehicle width direction from the leg (52),
The power supply according to any one of claims 1 to 4, wherein a length dimension (W2) of the fastening member (60) is longer than a dimension (W1) of the leg portion (52) in the vehicle width direction. Headlight support structure for conventional vehicles. A rear surface (68) in which the recess (61) is directed substantially perpendicularly to the upper surface (57) of the bottom bridge (12), and an inclined surface (inward of the vehicle front side with respect to the rear surface (68) 63) and
When the headlight (11) is fixed to the bottom bridge (12), the space between the rear surface (68) and the inclined surface (63) of the recess (61) and the front and rear surfaces of the leg (52) The headlight support structure for a saddle-ride type vehicle according to claim 5, characterized in that a gap is formed to allow the headlight (11) to swing back and forth. The leg portion (52) has a front surface (52a) substantially parallel to the vertical direction of the headlight (11), left and right side surfaces (52b) perpendicular to the front surface (52a), and the front surface (52a) Surrounded by a rear surface (52d) that is inclined backwards, and has a wedge shape in which the thickness dimension in the longitudinal direction of the vehicle body decreases toward the lower side of the vehicle body,
The headlight support structure for a saddle-ride type vehicle according to claim 5 or 6, wherein a lower surface (52c) of the lower end portion (52) of the leg portion (52) is shaped to have an arc cross section.   When the headlight (11) is fixed to the bottom bridge (12), the back surface (52d) of the leg (52) is substantially perpendicular to the top surface (57) of the bottom bridge (12) The headlight support structure for a straddle-type vehicle according to claim 7, characterized in that it is directed.

Images