JP2510901Y2 - Front fork protector device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Use) The present invention relates to a protector device attached to a front fork of a motorcycle.

(Prior Art) Recently, in motorcycles, particularly motorcycles for off-road use, the upper portion of an inner tube is telescopically inserted from below into a pair of outer tubes fixed to an upper bracket and a lower bracket. Many inverted front forks are used.

In such a front fork, in order to prevent mud and the like from adhering to the inner tube located below, a protector made of a vertically long plate material that covers the front side of the inner tube is attached. That is,
FIG. 3 is a partial view showing a protector mounting portion of the inverted front fork described above. An outer tube 2 fixed to a lower bracket 1 and the like has an inner tube in which wheels (not shown) are mounted from its lower end portion to its lower end portion. The upper part of 3 is telescopically inserted.

The plate-shaped protector 4 is disposed on the front side of the inner tube 3, and the lower end of the protector 4 is fixed to the lower end of the inner tube 3. On the other hand, a guide member 5 having a guide hole 5a is attached to a lower end portion of the outer tube 2, and the guide hole 5a of the guide member 5 is provided.
An upper portion of the protector 4 is slidably inserted and supported therein.

(Problems to be solved by the invention) However, in such a protector device, generally, the back side of the protector 4 is always slidably supported on the inner surface of the guide hole 5a as shown in FIG. When the front fork contracts as shown in FIG. 5 or expands as shown in FIG. 3 during actual traveling, the front surface of the protector 4 slides on the inner surface of the guide hole 5a due to vibration, and the front surface of the protector 4 Are worn and the appearance is impaired.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a protector device in which the front surface of the protector is not scratched by sliding contact and the appearance thereof is not damaged even when the protector moves up and down.

[Constitution of device]

(Means for Solving the Problems) The present invention provides a protector device for protecting an outer surface of an inner tube in an inverted front fork in which an upper portion of an inner tube having wheels mounted on a lower end portion is telescopically inserted into an outer tube. The lower end of the protector is fixed to the lower end of the inner tube, and the upper part of the protector is vertically movably inserted into the guide hole of the protector guide member attached to the outer tube. It is characterized in that a projecting ridge extending in the longitudinal direction and slidably contacting the inner surface of the guide hole is provided at the edge portion.

(Operation) When the inner tube moves up and down together with the wheel during actual traveling, the protector also moves up and down along with it. At that time, the protrusions provided on the left and right edges of the front face of the protector are provided with the guide holes of the guide member. It slides on the inner surface. Therefore, the portion other than the protrusion on the front surface of the protector does not slide-contact with the inner surface of the guide hole, and it is possible to prevent the front surface of the protector from being scratched or the like due to the sliding contact.

(Example) Hereinafter, an example of the present invention is described with reference to an accompanying drawing.

FIG. 2 is a side view of the motorcycle for off-road use, in which a front wheel 12 is suspended at the lower end of an inverted front fork 11 steered by a bar handle 10. That is, the outer tube 14 is fixed to both sides of the upper bracket 13a and the lower bracket 13b to which the bar handle 10 is attached, and the upper portion of the inner tube 15 is extendably inserted into the outer tube 14 from below. Has been done. A front wheel 12 is suspended from the lower end of the inner tube 15, and a front fender 16 that covers the front wheel 12 is attached to the outer tube 14.

A vertically long plate-shaped protector 17 is disposed on the front side of the inner tube 15, and the lower end of the protector 17 is fixed to the lower end of the inner tube 15.
The upper part of the is slidably inserted and supported in the guide hole 18a of the guide member 18 attached to the outer tube 14 (first
Figure).

By the way, projections 17a extending in the axial direction are provided on both left and right edges of the front surface of the protector 17, and the projections 17a are slidably in contact with the inner surface of the guide hole 18a.

Then, when the motorcycle travels, the protector 17 moves up and down along with the front wheel 12 along the outer tube 14, but in this case, the protrusion 17a of the protector 17 slides on the inner surface of the guide hole 18a. It is possible to reliably prevent the other surface of the front surface from slidingly contacting the inner surface side of the guide hole 18a.

[Effect of device]

As described above, in the present invention, the protrusions are provided on both the left and right edges of the front surface of the protector. Therefore, the protrusions slide on the inner surface of the guide hole of the guide member, and the other portions slide on the inner surface of the guide hole. Is reliably prevented. Therefore, the front surface of the protector is not damaged by sliding contact with the guide hole, and the appearance is not damaged.

[Brief description of drawings]

1 is a cross-sectional view of a protector of the present invention, FIG. 2 is a side view of a motorcycle using the protector of the present invention, FIG. 3 is a perspective view of a conventional protector mounting portion, and FIG. FIG. 3 is a cross-sectional view of the guide member portion of FIG. 3, and FIG. 5 is an explanatory view showing the inner tube when it is contracted. 10 …… Bar handle, 11 …… Front fork, 12 ……
Front wheel, 13a …… Upper bracket, 13b …… Lower bracket, 14 …… Outer tube, 15 …… Inner tube, 16 …… Front fender, 17 …… Protector, 17a
...... Ridge, 18 …… Guide member, 18a …… Guide hole.

Claims (1)

(57) [Scope of utility model registration request] 1. A protector device for protecting an outer surface of an inner tube in an inverted front fork in which an upper portion of an inner tube having a wheel mounted on a lower end thereof is elastically inserted into an outer tube, wherein a protector is provided at a lower end of the inner tube. The lower end is fixed, and the upper part of the protector is vertically movably inserted and installed in the guide hole of the protector guide member attached to the outer tube. A protector device for a front fork, characterized in that a protrusion is slidably provided on the inner surface of the guide hole.