JPH0722394Y2 - Motorcycle handle fixing structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a handle fixing structure for a motorcycle of a type in which a handle holder is clamped on an inner tube of a front fork.

(Prior art) The front fork inner tube that is fixed to the fork holder is fitted with the notch hole on the handle holder, and the notch is tightened with a bolt to clamp the handle holder to the inner tube. Therefore, it is necessary to regulate the position with bolts etc.The main fixing is to fix the handle pipe and the clamp of the handle holder at the same time with the bolt for tightening the handle, but to fix the positioning between the handle holder and the fork holder. You need another bolt for this. However, if this positioning bolt is completely tightened (when the handle holder is completely tightened on the fork holder), it may be impossible to clamp the handle holder to the inner tube first, and stress may remain on the handle holder. .

As a prior art, there is Jikkou Sho 61-13427.

(Object of the Invention) The present invention is intended to prevent the clamped state between the handle holder and the inner tube from being unreasonable even when the handle holder is restricted to a predetermined position of the fork holder by the positioning bolt. There is.

(Construction of the Invention) The present invention is a handle holder having a fork upper holder 4 fixed to the upper end of an inner tube 3 protruding upward from the front fork 1 and a slit 11 communicating with a hole 10 into which the inner tube 3 is fitted. 8, a handle pipe 9 in which a root 9a is fitted in a stepped hole 14 provided in one of the bosses 12 and 13 that sandwich the slit 11 of the handle holder 8 in a direction orthogonal to the hole 10, and the other It fits into the hole 15 provided in the boss 13 and is screwed into the root portion 9a of the handle pipe 9 through the stepped hole 14 of the one boss 12 to mount the handle pipe 9 and narrow the slit 11 to insert the handle holder 8 into the inner. In a motorcycle having a bolt 16 fixed to the tube 3, a surface 22 perpendicular to the inner tube 3 is provided on the opposite side of the handle holder 8 from the slit 11, and a positioning hole 18 is provided on the surface 22. Positioning having a head portion 19a loosely fitted into the positioning hole 18 from below from the positioning hole 18 with a clearance D in between, screwed into the screw hole 20 of the fork upper holder 4 immediately above, and facing the surface 22 with a gap C therebetween. A handlebar fixing structure for a motorcycle having bolts 19.

Although the position of the handle holder 8 is regulated by the fork upper holder 4, some looseness remains on the head portion 19a of the positioning bolt 19, so that the positioning bolt 19 does not cause excessive stress to the handle holder 8.

(Example) In FIG. 1 showing a part of the left side surface of a motorcycle, 1 is a left front fork (a right side is hidden) of a pair, and 2 is a pipe frame. Front fork 1
At the upper end of the inner tube 3 protruding further upward,
The left and right end portions of the fork upper holder 4 and the fork under holder 5 are fixed at intervals in the vertical direction, and the central portions of both holders 4 and 5 are axially attached to the head pipe 6 at the front end of the frame 2 (left end in FIG. 1). It is rotatably supported via a center line 7).

In the illustrated embodiment, the handle holder 8 is fixed on the inner tube 3 immediately below the upper holder 4,
From the handle holder 8, each one handle pipe 9 projects in a V shape as shown in FIG.

As shown in FIG. 3, the handle holder 8 is provided with a hole 10 into which the inner tube 3 is fitted, and a slit 11 communicating with this hole 10, and a stepped hole orthogonal to the slit 11 of the bosses 12 and 13 that sandwich the slit 11.
A root end 9a of the handle pipe 9 and a bolt 16 are fitted to 14 and 15, and the bolt 16 is screwed onto the root end 9a of the handle pipe 9 to fix the handle pipe 9 to the handle holder 8 and at the same time cut 11 The inner surface of the hole 10 is fixed to the outer peripheral surface of the inner tube 3 by tightening.

The handle holder 8 has a positioning hole 18 on the side opposite to the slit 11.
(Stepped hole) is provided, and the hole 18 has a surface 22 (stepped portion) perpendicular to the inner tube 3 as shown in FIG. This hole
As shown in FIG. 4, a positioning bolt 19 (stepped bolt) is fitted into the 18 from below, and the upper end of the bolt 19 is screwed into a screw hole 20 provided in the fork upper holder 4 to form a stepped portion of the bolt 19. twenty one
The (bolt step) is crimped to the lower surface of the fork upper holder 4. In that state, the head 19a of the bolt 19 and the hole 1
A slight gap C between the surface 22 (step portion) of 8 (for example, 1-2 m
The dimensions of the holes 18 and the bolts 19 are designed in advance so that m) is left and a clearance D is also left between the bolts 19 and the holes 18 in the radial direction. Therefore, no stress is generated in the bolt 19 and the handle holder 8 in the lateral direction of FIG.

At the time of assembly, hold the handle pipe 9 loosely and temporarily with the bolt 16 and attach the handle holder 8 to the inner tube 3
While pushing up upward, the bolt 19 is screwed into the screw hole 20, and in that state, the bolt 16 and the bolt 19 are finally tightened. As a result, a gap C is formed between the bolt head 19a and the surface 22 (step portion) of the hole 18, and a clearance D is formed between the bolt 19 and the hole 18.

(Effect of the Invention) As described above, according to the present invention, the positioning hole 18 formed in the handle holder 8 and parallel to the front fork 1 is formed.
Through the positioning bolt 19 to the fork upper holder 4
Of the positioning bolt 19 and the surface 22 of the handle holder 8 and a clearance D is provided between the positioning hole 18 and the positioning bolt 19. As a result, even if the handle holder 8 is clamped to the inner tube 3, there is no risk of overload. That is, since the positioning bolt 19 is fitted in the positioning hole 18, it is simply screwed into the screw hole 20 of the fork upper holder 4 with the clearance C and the clearance D therebetween.
There is no fear that the head portion 19a applies a tightening force to the handle holder 8. As a result, the positioning hole 18 of the handle holder 8
The moment indicated by the arrow A is not likely to be generated in the vicinity of the position, and the durability is improved and the assembling workability is also improved.

In short, since the bolt 19 is loosely fitted in the hole 18 with the clearance D and the head portion 19a faces the surface 22 (step portion) with the gap C, the head portion 19a has a tightening force against the handle holder 8. There is no danger of adding a force to the handle holder 8 and the moment indicated by the arrow A is not generated in the vicinity of the hole 18 of the handle holder 8 so that the durability is improved and the handle holder 8 can be positioned in the rotational direction and the vertical direction only by the present invention. Because you can
The number of parts is reduced, the number of processing steps is reduced, and the cost is reduced, as compared with the conventional case in which another positioning for restricting the rotation direction and the vertical direction is provided.

That is, the handle fixing structure according to the present invention has one bolt.
With 19, it is possible to exhibit both the function of positioning the handle holder 8 in the rotational direction and the function of positioning in the vertical direction at the same time, and there is no fear that the bolt head 19a will apply a clamp tightening force to the handle holder 8. , The durability is improved and the assembling work becomes easy.

Even if the handle holder 8 is not sufficiently tightened with respect to the inner tube 3, the surface 22 or the lower surface of the handle holder 8 is supported by the head portion 19a, so that the position of the handle pipe 9 is not lowered too much.

(Other Embodiment) When the handle holder 8 is not provided with the positioning hole 18 (stepped hole), a gap C may be formed between the bolt head 19a and the lower surface of the handle holder 8. If a bottomed screw hole with a certain depth can be provided on the lower surface of the fork holder 4 instead of the screw hole 20, a straight bolt (not a stepped bolt) of a stud bolt type is used instead of the bolt 19 (stepped bolt). Ordinary bolts) can also be adopted.

FIG. 5 shows another embodiment, and 16 'in the drawing is another bolt.

[Brief description of drawings]

FIG. 1 is a left side partial view of a motorcycle to which the present invention is applied,
2 is a schematic plan view taken along the line II in FIG. 1, and FIG. 3 is a line II in FIG.
I-III sectional enlarged view, FIG. 4 is IV-IV sectional view of FIG. 3, and FIG.
The drawing is a plan view corresponding to FIG. 3 for showing another embodiment. 1 ... Front fork, 3 ... Inner tube, 4, 5 ... Fork holder, 8 ... Handle holder, 10 ... Hole, 11 ... Cutting, 16 ... Bolt, 18 ... Positioning hole, 19 ... Positioning bolt, 19a ... Head.

Continuation of the front page (56) Reference JP-A-59-137270 (JP, A) JP-A-57-15089 (JP, A) JP-A-51-37362 (JP, A) Actual development Sho-59-27986 (JP , U) Actually open 60-124786 (JP, U) Actually open 61-179187 (JP, U) Actually open 60-87886 (JP, U) Actually public 61-13427 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A fork upper holder 4 fixed to an upper end portion of an inner tube 3 protruding upward from a front fork 1, a handle holder 8 having a slit 11 communicating with a hole 10 into which the inner tube 3 is fitted, and a handle. The handle pipe 9 in which the root portion 9a is fitted in the stepped hole 14 in the direction orthogonal to the hole 10 provided in the one boss 12 of the bosses 12 and 13 that sandwich the slit 11 of the holder 8 and the other boss 13 are provided. Hole 15
A bolt 16 for fixing the handle holder 8 to the inner tube 3 by screwing the handle pipe 9 through the stepped hole 14 of the one boss 12 and the root portion 9a of the handle pipe 9 to mount the handle pipe 9. In the motorcycle having the above, a surface 22 perpendicular to the inner tube 3 is provided on the side opposite to the slit 11 of the handle holder 8 and has a positioning hole 18 in the surface 22, and the positioning hole 18 is provided with a positioning hole 18 A handlebar fixing structure for a motorcycle having a positioning bolt 19 having a head portion 19a which is loosely fitted with a clearance D and is screwed into a screw hole 20 of a fork upper holder 4 immediately above and faces the surface 22 with a gap C therebetween.