JPS6127780A - Front frame tilt type motor tricycle - 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] a. Industrial application field The present invention relates to a tilting front frame type motor tricycle.

b. Prior art A so-called lean three-wheeled vehicle has been proposed that is capable of cornering in a similar manner to a motorcycle.

As shown in FIG. 5, the lean tricycle has a front body 2 having one front wheel 1 and a rear body 4 having two rear wheels 3 connected by one roll shaft 5. 2 can be tilted left and right.

In such a tricycle, since the engine, radiator □, muffler, etc. are arranged in the rear body 4, each part needs to be arranged compactly.

C9 Problems to be Solved by the Invention It is an object of the present invention to solve the above-mentioned problems and provide a front frame tilting type motor tricycle in which a radiator and a muffler can be arranged compactly.

Means for Solving the d0 Problem The present invention will be described in detail below with reference to the illustrated embodiments.

The second figure shows an embodiment of the front frame tilting type motor tricycle according to the present invention. The tricycle has a front body 7 having one front wheel 6 and a rear body 9 having two rear wheels 8 connected by a roll shaft 10, so that the front body 7 can be tilted in the left-right direction. The roll axis lO is the front frame 11 of the front vehicle body 7.
The roll shaft 10 is supported on the axis of a fixed cylindrical roll shaft case 12 via a roll bearing (not shown), and a rear frame 13 of the rear vehicle body 9 is connected to the rear end of the roll shaft 10. The rear frame 13 has a
A plurality of (two in the illustrated example) joint plates 16 are fixed to the tips of the two-bar frame 14 and the lower frame 15 by welding or the like, and the joint plates 14 are fixed to the roll shaft 10. ing.

The rear end of the upper frame 14 of the rear frame 13 is connected to the rear end of the lower frame 15 which is bent upward.
The radiator 17 is installed on the upper side of 4a, and the muffler 18 is installed on the lower side.
It is arranged. Reference numeral 19 denotes a bracket for attaching a trailer sheep, which is provided at the tip of the extending portion 14a of the rear frame 13. Reference numeral 20 denotes an engine disposed in the space of the rear frame 13.

e0 Effects of the Invention As described above, according to the tilting front frame tricycle of the present invention, the radiator and muffler are arranged across the extension of the rear frame, so the mounting structure can be simplified. I can do it. Furthermore, since the radiator and muffler can be separated by sandwiching the extension of the rear frame, a structure for blocking the radiator and muffler can be easily obtained.

f. Other Embodiments FIGS. 3 and 4 show other embodiments of the present invention, in which the frame pipe 21 used as the rear frame 13 is used as a cooling water pipe for the engine 20. be. The frame pipe 21 is provided with a blind stopper 22 by brazing or the like at one end, a screw 23 for a drain plug at the other end, and an elbow 24 in the middle as an inlet/outlet for cooling water. , 242 are provided.

Elbow 24. is connected to the inlet 25 of the engine 20 with a water hose 26, and the elbow 242 is connected to the radiator 1
7 via a hose 28. The radiator 17 is connected to the outlet of the thermocycler 29 via a radiator hose 30, forming a cooling system circuit.

Thereby, the frame pipe 21 can be used to supply cooling water, so there is no need to separately provide piping for the cooling water, and the weight can be reduced, which is economical. In addition, space for piping can be omitted, so
It can be made more compact. Furthermore, since the screw i3 for the drain plug is provided at the bottom of the vehicle body,
Cooling water can be easily extracted.

[Brief explanation of drawings]

FIGS. 1 and 2 show an embodiment of a front frame tilting type motor tricycle according to the present invention, FIG. 1 is a conceptual diagram showing the entire motor tricycle, and FIG. . 3 and 4 show a tilting front frame type motor tricycle according to another embodiment of the present invention, FIG. 3 is a conceptual diagram showing the entire motor tricycle, and FIG. 4 shows a cooling water path. It is a conceptual diagram. FIG. 5 is a conceptual diagram showing a conventional front frame tilting type motor tricycle. 6...Front wheel, 7...Front body, 80
1. Rear wheel, 9 rear body, 10... Roll axis, 13... Rear frame, 14... Upper frame, 14a... Extension part 15... Lower frame, 17... Radiator, 18 ···scarf,
, 19...bracket, 20...engine. Figure 1 2-

Claims (3)

[Claims] (1) A front body that has one front wheel and is tiltable in the left-right direction with respect to the roll axis, and a rear body that has two rear wheels and is connected to the front body through the roll axis. In the tricycle, the rear end of the rear frame constituting the rear body is extended rearward, and a radiator is arranged in the upper part and a muffler is arranged in the lower part, sandwiching the extended part of the rear frame. A tilting front frame automatic tricycle featuring: (2) The front frame tilting type motor tricycle as set forth in claim (1), wherein a bracket for attaching a trailer hinge is provided at the tip of the extending portion of the rear frame. (3) The front frame tilting type motor tricycle according to claim (1) or (2), wherein the rear frame is used for cooling water piping connecting the engine and the radiator.