JPS59171770A - Front two-wheel saddling type car - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a front two-wheel saddle-ride type vehicle comprising two front wheels, two rear wheels, or two rear wheels, and in which the front body and the rear body are configured to be swingable relative to each other in the left and right directions. .

In conventional four-wheeled vehicles with motorcycle parts and saddle-type seats, it is difficult to shift the center of gravity when driving and turning, and not only is it difficult to change the turning performance, but
When making a sharp turn, there was a risk of the vehicle falling to the outside.

The present invention aims to provide a front two-wheel saddle type vehicle that facilitates the movement of the center of gravity during running and turning in such a vehicle and improves turning performance.

That is, the present invention connects a front vehicle body and a rear vehicle body so that they can tilt left and right, and a link mechanism is provided between the front wheels by a knuckle bracket that is secured to the left and right front wheels, and upper and lower arms that respectively engage the knuckle brackets. This is a two-wheel front saddle type vehicle characterized by having a front wheel that is tiltable.

Hereinafter, examples of the present invention will be explained in detail with reference to the drawings.

In FIG. 1, I is a front vehicle body, 2 is a rear vehicle body, and 3 is a connecting portion that connects the front and rear vehicle bodies in a tiltable manner. Connecting part 3
is a bearing 7 supported and fixed to the frame 6 of the rear vehicle body 2;
The rotating shaft 8 is inserted through and supported by the bearing 7. The rotation shaft 8 is constructed integrally with the lower frame 9 of the front vehicle body 1. 10 is a front frame, 11 is a steering shaft with a bar handle, 12 is a notebook, 13 is an engine, 14 is a rear wheel, and 15 is a front wheel.

In FIGS. 2 to 4, reference numerals 20 and 20' denote brackets that engage the front wheels 15 and 15', respectively, and the brackets 20 and 20' are fixed to knuckle brackets 21 and 21', respectively. Knuckle bracket 21, 21'
is provided with U-shaped support arms 22, 22' and 23°23' on the upper and lower sides, respectively, and shafts 24, 24' and 25, 2
5' is held rotatably. 26 , 26 ′ are upper arms, at their outer ends, shafts 24 , 2
4', fixed to the shaft 28 at mutually close ends, and extending upwardly from the tip of the lower frame 9 via the arm 29, via the shaft 4. It is held rotatably. Reference numeral 30 denotes a bar disposed below the lower frame 9, and the bar 30 is rotatably supported by inserting a support shaft 31 provided at the lower part of the lower frame 9 from its end face. 32, 32' are lower arms provided on both sides of the bar 30; 33, 3;
3' is another lower arm similarly provided, each end of which is fixed to the shafts 25, 25'. In this way, a quadrilateral link mechanism is constructed by the upper arms 26 and 26', the lower arms 32, 32' and 33, 33', and the knuckle brackets 21 and 21'.

Now, when an attempt is made to tilt the front body 1 while turning, the lower frame 9 rotates, and therefore the upper arms 26, 26' and the lower 7'-arms 32, 3
2' and 33, 33' move in left and right opposite directions. Therefore, the knuckle brackets 21 and 21' are both tilted in the same direction, and the front wheels 15 and 15' are tilted as shown in FIG. Therefore, the front vehicle body 1 is inclined, and the center of gravity can be easily moved.

As described above, according to the present invention, the center of gravity of the front vehicle body can be easily moved during cornering even in a four-wheel vehicle with two wheels at the front or a tricycle with two widths at the front and two wheels at the rear. Therefore, even when making a sharp turn, there is no risk of the vehicle tipping over to the outside, and the turning performance can be improved. Therefore, it is possible to provide a sporty two-wheel front saddle type vehicle with maneuverability close to that of a motorcycle.

[Brief explanation of the drawing]

FIG. 1 is an explanatory side view of a front two-wheel saddle type vehicle according to the present invention;
Fig. 2 is a front explanatory view of the link mechanism of the front wheel, Fig. 3 is a plan view with a part of the link mechanism omitted, Fig. 4 is a perspective view of the rotation mechanism, and Fig. 5 is a perspective view of the rotation mechanism. The figure is an explanatory front view showing a tilted state of the front wheels. ■...Front body, 2-...Rear body, 3
......Connection part, 21.21'...Knuckle bracket, 26
, 26'... Upper arm, 30...
・Bar, 32, 32', 33, 33'...Lower arm. Figure 5 15' 15 Procedural amendment (voluntary) April 1982 2211 1. Indication of the case 1982 Patent jΩ'I No. 28192
No. 2, Title of the invention Two-wheeled saddle-type vehicle 3. Relationship with the person making the amendment 'l'JI'l'ilf Kazuto Address 4, Representative 107 Name (6006) Patent attorney Takashi Okuyama Male 3 Names 6 Contents of the amendment As shown in the attached document Contents of the amendment 1) [Smooth 1 in the first line of page 2 of the specification is corrected to ``smooth 1.'', 1 in the bottom line of 31st specification Correct ``the sentry surface'' to ``the two end faces of each.'' 3) Correct figures 2, 4, and 5 as shown in the attached figures.

Claims (1)

[Claims] The front body and the rear body are connected so as to be tiltable left and right, and a link mechanism is formed by a knuckle bracket that secures the left and right front wheels between the front wheels, and upper and lower arms that engage the knuckle brackets, respectively. A saddle-riding vehicle with two front wheels characterized by a tiltable configuration.