JPH04339083A - Side stand installation structure for two wheeler - Google Patents

Abstract

PURPOSE:To provide a side stand installation structure having improved appearance. CONSTITUTION:In an installation structure of a side stand 30 pivoted on a frame 3 arranged in the lower side part of an engine through a side stand bracket 21 so as to be capble of swinging freely, a side stand installation structure of a two wheeler has characteristics that an engine side part opposing to the frame 3 is dented so as to foam a recess part 11, and that the side stand bracket 21 is installed inside of the frame 3 so as to project into the recess part 11.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a side stand to a main body for supporting a stopped two-wheeled vehicle.

0002

[Prior Art] A side stand is attached to a frame on the side of the engine, but the inside of the frame is usually equipped with equipment such as the engine and there is no space for installing a side stand. 62
As in the example described in Japanese Patent No. 156092, a side stand 04 is attached to a side stand bracket 02 which projects downwardly from a frame 01, with its base end pivotally supported via a pivot 03.

A spring 05 is installed between the frame and the center of the side stand 04.
5 maintains the upright state shown in FIG. 1, and when the side stand 04 is slightly swung backwards at the start of running, it flips upward and maintains the collapsed state.

0004

[Problem to be solved] The side stand 04 is a side stand bracket 0 that projects downward from the frame 01.
As shown in Fig. 1, when the vehicle is standing up, it protrudes downward and to the side and supports the vehicle body along with the front and rear wheels at three points; and extends rearward along the lower surface of the side frame. Therefore, the side frame can be seen from the outside in a state where it lies down parallel to the lower side.

[0005] The present invention has been devised in view of the above points, and its object is to provide a side stand mounting structure that is housed inside the frame without interfering with the engine or the like when the vehicle is laid down.

[0006]

Means and Effects for Solving the Problems In order to achieve the above object, the present invention provides a mounting structure for a side stand that is swingably supported via a side stand bracket on a frame disposed on the side of the lower part of the engine. In this invention, a side stand mounting structure for a two-wheeled vehicle is provided in which a side part of the engine facing the frame is recessed to form a recess, and a side stand bracket is attached to the inside of the frame by protruding into the recess.

[0007] Since the side stand bracket protrudes from the recess on the side of the engine, the side stand that is pivoted to the side stand bracket does not interfere with the engine, and the base end of the side stand is pivoted inside the frame. Therefore, when the device is folded down, the side stand extending rearward from the base end is stored inside the frame and is not visible from the outside, improving the appearance.

[0008]

[Embodiment] An embodiment of the present invention illustrated in FIGS. 2 to 5 will be described below. FIG. 2 is an overall side view of the motorcycle according to this embodiment. head pipe 1
The main frame 2 branches left and right from the main frame 2 and extends rearward, and the left and right down tubes 3 extend downward as well.
It is bent in the middle, extends rearward, and is connected to the main frame 2.

A rear fork 4 is pivotally supported near the connection portion, and a rear wheel 5 is pivotally supported at the rear end of the rear fork 4. Further, a front wheel 7 is pivotally supported by a front fork 6 which is rotatably supported by the head pipe 1. An engine 8 is mounted on the main frame 2 and the down tube 3.

An oil pan 10 is located below the crankcase 9 of the engine 8, and a down tube 3 runs along the side of the oil pan 10, oriented in the front-rear direction. When this oil pan 10 is viewed from above, as shown in FIG.
1 is formed. Oil pan 1 in front of this recess 11
A drain hole is provided in the bottom wall of the 0 portion, and a drain bolt 12 is screwed into the hole from below to plug it.

On the other hand, at a portion of the left down tube 3 facing the recess 11, a side stand bracket 21 is provided to protrude into the inside of the down tube 3 via a mounting board 20. The mounting board 20 is fitted onto the inner surface of the down tube 3, and the side stand bracket 21 protruding from the mounting board 20 is bent approximately into a U-shape when viewed from above (see FIG. 3), and has a front and rear side. The portions 21a and 21b are welded to the mounting board 20, and the central connecting portion 21c is inclined outward as it goes downward. A circular hole 22 for attaching a side stand is provided in this inclined central connecting portion 21c, and a pin 2
3 is installed protrudingly.

The central connecting portion 21c has a notch 21d at the rear of the circular hole 22, and an arcuate end face is formed from the bottom of the circular hole 22 to the rear notch 21d. This arcuate lower end is sandwiched from both sides by a pair of left and right pivot boards 24 and 25 that are bifurcated, and a bolt shaft 27 is passed from the inner pivot board 25 through the circular hole 22 to the outer pivot board 24.
passes through and a nut 29 is screwed through the washer 28 to the screw portion protruding toward the pivot board 24 side, and the pivot board 24,
25 is pivotally attached to the side stand bracket 21 so as to be swingable.

Since the base of the side stand 30 is fitted into the integral protrusion 26 of the pivot base plates 24 and 25, the side stand 30 swings around the bolt shaft 27, and the base of the side stand 30 is attached to the side stand. When the side stand 30 swings downward by moving along the arcuate end surface of the central connecting portion 21c of the bracket 21, the base comes into contact with the lower end surface of the circular hole 22 and stops, becoming an upright state.
When it swings upward, it fits into the notch 21d and comes into contact with the upper side surface of the notch 21d to be in a laid down state.

The pivot point of this side stand 30 is located inside (right side) of the down tube 3 and is located in the recess 1 of the oil pan 10.
1, the pivot point is completely hidden by the down tube 3, and when it is collapsed, it is stored parallel to the inside of the down tube 3, and from the outside, most of it is inside the down tube 3, Only a portion of the tip is visible behind the upward bend of the down tube 3. Therefore, the side stand 30 does not interfere with the appearance of the vehicle body when the side stand 30 is folded down.

When the side stand 30 is erected, it swings downward from the pivot part hidden in the down tube 3 and protrudes outward to the left to support the vehicle body tilted somewhat to the left. In this supported state, the drain opening is located at the left front of the bottom wall of the oil pan 10, so that the oil can be easily drained by removing the drain bolt 12.

A spring 32 is installed between the pin 23 and a hook 31 provided at the inner center of the side stand 30 to maintain the upright state of the side stand 30 and to move the side stand 30 somewhat backward from the upright state. When it swings, the side stand 30 is flipped upward and maintained in a laid down state.

Furthermore, a side stand switch 33 is provided further inside the inner pivot board 25 that pivots the side stand 30 to the side stand bracket 21, with a shaft core 33a fitted coaxially with the bolt shaft 26. It is possible to determine whether or not it is in a prone state.

[0018]

According to the present invention, since the side stand bracket is attached to the inside of the frame, the side stand bracket attached to the side bracket is stored and hidden inside the frame when it is collapsed, and the appearance can be improved.

[Brief explanation of drawings]

FIG. 1 is a rear view showing a conventional side stand mounting structure.

FIG. 2 is a side view of a motorcycle according to an embodiment of the present invention.

FIG. 3 is a plan view showing the positional relationship between the side stand bracket, frame, and oil pan of this embodiment.

FIG. 4 is a side view of main parts with some parts omitted.

FIG. 5 is a rear view of main parts with some parts omitted.

[Explanation of symbols] 1... Head pipe, 2... Main frame, 3... Down tube, 4... Rear fork, 5... Rear wheel, 6... Front fork, 7... Front wheel, 8... Engine, 9... Crank case, 10... Oil pan, 11... recess, 12... drain bolt, 20... mounting board, 21... side stand bracket,
22... Circular hole, 23... Pin, 24, 25... Pivot support board, 26
...Protrusion, 27...Bolt shaft, 28...Washer, 29...Nut, 30...Side stand, 31...Hook, 32...Spring, 33...Side stand switch.

Claims (1)

[Claims] Claim 1: In a mounting structure for a side stand that is pivotally supported via a side stand bracket to a frame disposed on the side of a lower part of the engine, the side of the engine facing the frame is recessed to form a recess. form,
A side stand mounting structure for a two-wheeled vehicle, characterized in that a side stand bracket is attached to the inside of the frame so as to protrude into the same recess.