JP3282838B2 - Front fender stay mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stay for a front fender attached to a front fork of a motorcycle.

[0002]

2. Description of the Related Art A semicircular portion which fits into a groove formed in the upper portion of left and right bottom cases constituting a front fork, and supports provided at both ends of the semicircular portion and protruding to the side of the front fender. The front fender stay, consisting of a pair of front and rear ears that are connected to each other and
It is publicly known from JP-A-114589.

[0003]

However, before and after the bottom case, it is necessary to overlap and connect the front fender support pieces to the ears of the front fender stay, that is, to attach the front and rear support pieces to the sides of the front fender. When the front fender is inserted or pulled out between the left and right bottom cases, the front and rear support pieces become obstacles, which requires troublesome work such as deforming the front fender. Was.

Accordingly, an object of the present invention is to provide a front fender stay which can be fitted into a groove in an upper portion of a bottom case of a front fork and directly connected to a side surface of a front fender, thereby facilitating attachment / detachment work of the front fender. It is in.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, according to the present invention, a stay fitting groove is formed on an outer peripheral surface of a bottom case of a front fork, and a front fender stay is fitted into the stay fitting groove. In the front fender stay mounting structure in which the front fender stay is mounted on the front fender stay, the front fender stay is a horseshoe-shaped cross-section where a part of a cylinder is cut out, and is inserted into the stay fitting groove from the radial direction of the bottom case. A pair of front and rear connecting portions having a vertical connecting surface directly connected to the side surface of the front fender is integrally provided with the extended circular portion, and the outer periphery of the bottom case is perpendicular to the vertical portion.
It is characterized by being arranged so as not to intersect with a plane including a face .

[0006]

The front fender stay can be mounted by fitting the stay into the stay fitting groove from the radial direction of the bottom case while expanding the missing circle. In addition, flow
On the front fender stay, on the side of the front fender
A pair of front and rear joints with the direct joining surface as the vertical surface
Integrally provided, the outer periphery of the bottom case includes the vertical surface
Since it is arranged so as not to intersect with the plane, it can be directly connected to the front fork side surface on the vertical connecting surface of the pair of front and rear connecting parts, so that the insertion or pulling out of the front fender between the left and right bottom cases is easy I can do it.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 showing an example of a motorcycle to which the present invention is applied, 1 is a head pipe, 2 is a main frame, 3 is a subframe, 4 is an upper seat rail, 5
Is a lower seat rail, 6 is an engine, 7 is a radiator, 8 is a swing arm, 9 is a rear wheel, 11 is a fuel tank, 12 is a seat, 13 is a seat cowl, 14 is a steering wheel, 15 is a front fork, 16 is a front wheel, 17 is a meter unit, 18 is a headlight, 19 is a front blinker light, 21 is a main cowl, and 26 is a front fender.

The upper seat rail 4 and the lower seat rail 5 are formed by extruded rectangular aluminum pipes. In the example shown in FIG. 6, an arrow A is provided at the end of the extruded rectangular aluminum pipe P. As shown in the figure, an aluminum spacer 61 formed by extrusion in the lateral direction is inserted, the upper portion is welded W, and the drainage passage D is formed at the lower portion.
The drainage passage D is subjected to painting or alumite treatment. Here, as shown in FIG. 7, coupling holes h, h are formed at the end of the aluminum pipe P by machining, and the coupling holes 62 are formed at the aluminum spacer 61 by extrusion molding in the lateral direction indicated by an arrow A. Are simultaneously formed. Coupling holes h, h
By changing the diameter of the coupling hole 62, it is possible to prevent the pipe from hitting. In this manner, the end of the rectangular aluminum pipe P, into which the aluminum spacer 61 formed by extrusion in the lateral direction indicated by the arrow A is inserted and fixed, is connected to the bracket b or the like of the sub-frame 3 by the bolt 63 and the nut 64. The front ends of the upper seat rail 4 and the lower seat rail 5 are connected.

In the example shown in FIG. 8, an aluminum spacer 71 formed by extrusion in the vertical direction is inserted into the end of a rectangular aluminum pipe P formed by extrusion, as shown by an arrow B, and the vertical shape of the pipe P formed by the R shape is formed. Of the left and right ears 7 with the width of the aluminum spacer 71 widened.
5 and 75 as stoppers (see also FIG. 9), the upper portion is welded W and the lower portion is a drain passage D in the same manner as described above.
Is formed. In this case, the coupling hole 72 of the aluminum spacer 71 is formed by machining. As shown in FIG. 9, the shape of the extending portion of the aluminum spacer 71 into the end of the rectangular aluminum pipe P can be arbitrarily obtained as shown by a solid line portion 76 and an imaginary line portion 77 by extrusion molding in the up and down direction by an arrow B. That is, the degree of freedom in setting the balance between strength, rigidity, and weight is high.

In the example shown in FIG. 10, an aluminum spacer 81 having four chamfered four corners formed by extrusion in the front-rear direction in the same extrusion direction as the pipe P is inserted into the end of a rectangular aluminum pipe P formed by extrusion. Thus, the upper portion is welded W, and drain passages D, D are formed on the lower left and right. In the above spacer example, it was welded to the pipe,
It is also possible to eliminate welding by adjusting the cut amount of the spacer and lightly pressing it into the pipe. In the example shown in FIGS. 11 and 12, the end of the rectangular aluminum pipe P having the hollow portion S is formed as an integral solid portion E by impact molding, and a connection hole h is formed in the solid portion E. I have.

As shown in FIGS. 1 and 2, the main cowl 21
The under cowl 22 covers both sides and below the engine 6, and the right and left middle cowls 23, 23 cover both sides of the cylinder 6 a on the engine 6 and the radiator 7 in front thereof.
, Upper cowl 24 covering headlights 18, 18, and left and right inner middle cowls 25, 25 for guiding traveling wind to radiator 7. And
The front fork 15 includes left and right inner tubes 15a, 15a which are supported on the head pipe 1 side via a steering shaft and upper and lower bridges at an upper portion as is known.
And the inner tubes 15a, 1
Bottom cases 15b and 15 slidably fitted to 5a
b, and the bottom cases 15b, 15
A front fender 26 is attached between the upper portions of the front fenders.

That is, as shown in FIGS. 3 and 4, a stay fitting groove 15c is formed on the outer periphery of the upper portion of the bottom case 15b, and the stay fitting groove 15c is detachably fitted from the lateral direction. The side portions of the front fender 26 are directly connected by the front fender stay 31 whose vertical direction is restricted. Front fender stay 31
A pair of front and rear connecting portions is formed at both ends of a cutout portion of a horseshoe-shaped cutout portion 32 which is formed of an elastic resin material or the like and cuts off a part of a cylindrical portion following the upper periphery of the bottom case 15b. 34, 34, and the front and rear connecting portions 3
4, 34, as shown in FIG.
5, 35 are vertical surfaces. Furthermore, from FIG.
As is apparent, the outer periphery of the bottom case 15b is
It is arranged so as not to intersect with the plane including the face. A small-diameter groove fitting portion 3 that fits into the stay fitting groove 15c on the outer periphery of the upper portion of the bottom case 15b is formed on the inner periphery of the partially circular portion 32.
3, and the front and rear coupling portions 34, 34 have coupling holes 36, 36 penetrating in the lateral direction.

The above-mentioned front fender stay 31
As shown in FIG. 3, the missing circular portion 32 is brought close to the outer periphery of the upper portion of the bottom case 15b from the lateral direction, the lacking circular portion is expanded, and the groove fitting portion 33 is fitted into the stay fitting groove 15c. By doing so, the movement in the vertical direction is regulated. In this state, the front and rear coupling portions 34, 34 are
b faces the vertical coupling surfaces 35, 35 inside,
The side surfaces of the front fender 26 are directly overlaid on the inside of the vertical connecting surfaces 35, 35, and bolts 37, 37 are inserted from the respective connecting holes 36, 36, and nuts 38, 38 are fastened inside the front fender 26, respectively. Then, the attachment of the front fender 26 is completed.

FIG. 5 shows an example of attachment by the front fender stay 41 of the second embodiment. A connecting surface 45 which is perpendicular to the opposite side and which is continuous to the opposite side is formed by opening the missing circular portion of the missing circular portion 42 to the outside. The front fender stay 41 is provided with front and rear connecting portions 44,44. Further
In addition, as is clear from FIG.
The circumference is arranged so as not to intersect with the plane including the vertical plane.
ing. The front fender 41 has a vertical connecting surface 45 that fits the missing circular portion 42 from the inside to the upper part of the bottom case 15b and faces straight inside the bottom case 15b.
The side surface of the front fender 26 is directly overlapped with the front fender 26, and connected by bolts 47, 47 and nuts 48, 48 at the front and rear connection portions 44, 44, respectively. In the above, even if there is a laterally protruding portion 26a, 26a, for example, as shown in FIG. 5 in the front and rear of the front fender 26, the front and rear of the front fender 26 between the left and right bottom cases 15b, 15b. Insertion or withdrawal work in any direction can be easily performed.

[0015]

As described above, according to the front fender stay mounting structure of the present invention, the front fender stay is a horseshoe-shaped cross section in which a part of a cylinder is cut off,
With fitted from the radially by expanding the segmental portion to the stay fitting groove of the bottom case, a pair of coupling portions before and after the coupling surface and a vertical surface that binds directly to the front fender side face portion provided integrally, the bottom The outer periphery of the case includes the vertical surface.
The front fender stay can be mounted by fitting the stay into the stay fitting groove from the radial direction of the bottom case while expanding the missing circle portion. Furthermore, since the front surface can be directly connected to the side surface of the front fork on the vertical connecting surface formed by the pair of front and rear connecting portions, the work of inserting or pulling out the front fender between the left and right bottom cases can be facilitated.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an example of a motorcycle to which the present invention is applied.

FIG. 2 is also a front view

FIG. 3 is a first view of a front fender stay according to the present invention.
Plan view showing an embodiment

FIG. 4 is a side view of the same.

FIG. 5 is a plan view showing an example of attachment by a front fender stay of the second embodiment.

FIG. 6 is a perspective view showing a first example of a seat rail end structure.

FIG. 7 is a cross-sectional view thereof.

FIG. 8 is a perspective view showing a second example of the seat rail end structure.

FIG. 9 is a cross-sectional view thereof.

FIG. 10 is a perspective view showing a third example of the seat rail end structure.

FIG. 11 is a perspective view showing a fourth example of the seat rail end structure.

FIG. 12 is a cross-sectional view thereof.

[Explanation of symbols]

15: front fork, 15a: inner tube,
15b: bottom case, 15c: stay fitting groove, 16:
Front wheel, 26: front fender, 31, 41: front fender stay, 32, 42: missing circular portion, 33: groove fitting portion, 34, 44: coupling portion, 35, 45: coupling surface, 3
6 ... bonding hole.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B62J 15/02

Claims (1)

(57) [Claims] 1. A front fender in which a stay fitting groove is formed on an outer peripheral surface of a bottom case of a front fork, a front fender stay is fitted into the stay fitting groove, and a front fender is attached to the front fender stay. In the stay mounting structure, the front fender stay is a horseshoe-shaped cross-section stay in which a part of a cylinder is cut out, and is fitted to the stay fitting groove by expanding a missing circle portion from the radial direction of the bottom case. ,
A pair of front and rear coupling portions having a vertical coupling surface directly coupled to the side surface of the front fender ,
The outer periphery of the case does not intersect with the plane including the vertical plane
Front fender stay mounting structure characterized by being arranged as follows .