JP2001253381A - Rocking vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the assembling operability for a connecting mechanism and reduce the number of part items of the connecting mechanism, in an oscillating vehicle in which a front body frame having front wheels is connected by the connecting mechanism to a rear body frame having rear wheels, in such a manner that the front body frame is capable of rolling. SOLUTION: The connecting mechanism 50 removably attaches to the front body frame 12 a connecting shaft 51 extending in the longitudinal direction of the vehicle, and a connecting case 110 is formed integrally with the rear body frame 14. Bearings 55 and 56 for rotatably supporting the connecting shaft 51, and a damper mechanism 60 for providing damping action during rotation of the connecting shaft 51 and for providing the action of restoration to a neutral position are contained within the connecting case 110.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oscillating vehicle in which a front body frame is rotatably connected to a rear body frame.

[0002]

2. Description of the Related Art A technique relating to an oscillating vehicle in which a front body frame having front wheels and a front body frame having rear wheels are connected rotatably by a connecting mechanism is disclosed in, for example, Japanese Patent Publication No. Sho 6
Japanese Unexamined Patent Publication No. 2-26955 discloses a "tricycle parking device".

As shown in FIGS. 1 and 2 of the above publication, the above-mentioned prior art is provided with two rear wheels 20, 20 (the numbers are quoted from those described in the publication. The same applies hereinafter). A three-wheeled vehicle 1 (hereinafter, referred to as “prior art”) in which a front vehicle body 2 having a front vehicle wheel 9 provided on a rear vehicle body 3 is rotatably connected by a joint 14 is disclosed. Conventional joint 1
As shown in FIGS. 1, 4, and 5 of the publication, the rotary swing shaft 15 extending forward from the rear vehicle body 3, the case 26 attached to the front vehicle body 2, and the case 26 The stored bearings 27 and 28 and the damper mechanism (the swelling member 29 and the rubber 3
0, 30 combination structure). Bearings 27, 28
Is for rotatably supporting the rotation swing shaft 15.
The damper mechanism is a mechanism that has a buffering function when the rotation rocking shaft 15 rotates and also has a function of restoring to a neutral position.

[0004] Further, the above-mentioned prior art includes the first technique disclosed in the publication.
As shown in FIG. 0 and FIG. 11, the rear two wheels 220, 22
A three-wheeled vehicle 201 (hereinafter, referred to as “prior art”) in which a front vehicle body 202 having a front wheel 209 and a rear vehicle body 203 having a front wheel 209 is rotatably connected by a joint 214 is disclosed. The joint 214 of the prior art is disclosed in
As shown in the drawing, a rotation swing shaft 215 is connected to a front vehicle body 202 and a case 226 is connected to a rear vehicle body 203. The rotation oscillating shaft 215 corresponds to the above-described conventional rotation oscillating shaft 15, and the case 226 corresponds to the above-described conventional art case 26.

[0005]

As shown in FIGS. 1 and 4, the joint 14 of the prior art has a case 26 attached to the front vehicle body 2 with bolts and the like, and a rear subframe 16 of the rear vehicle body 3. And a rotation rocking shaft 15. The case 26 is a dedicated case separated from the front vehicle body 2 and the rear vehicle body 3. Since the exclusive case is provided, the number of parts of the joint 14 increases.

[0006] As shown in FIG. 13, the prior art joint 214 has a front body 202 connected to a rotation rocking shaft 215 and a rear body 203 connected to a case 226. For this reason, the rolling shaft 215 or the case 2
The components of the joint 214 cannot be assembled to the joint 26 in advance. At the same time when the rear vehicle body 203 is mounted on the front vehicle body 202, the rotation swing shaft 215, the bearing, and the damper mechanism are mounted on the case 226. Therefore, on the assembly line of the tricycle 201, the joint 21
4, the assembly work of the joint 214 is troublesome.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a technique for improving the workability of assembling a connecting mechanism and reducing the number of parts of the connecting mechanism.

[0008]

According to a first aspect of the present invention, there is provided an oscillating device in which a front body frame having front wheels is connected to a rear body frame having rear wheels by a connecting mechanism so as to be rollable. In the type vehicle, the connecting mechanism detachably attaches a connecting shaft extending in the vehicle front-rear direction to the front body frame or the rear body frame, and integrally forms a connecting case with the rear body frame or the front body frame.
It is characterized by housing a bearing for rotatably supporting the connection shaft and a damper mechanism for buffering the rotation of the connection shaft and restoring to a neutral position.

Since the connection shaft, the bearing and the damper mechanism are housed in the connection case, if the removable connection shaft is incorporated in the connection case, the workability of assembling the connection mechanism is enhanced. Furthermore, if the connection case is formed integrally with the rear body frame or the front body frame, the connection case of a separate member becomes unnecessary, the connection case becomes smaller, and the number of parts is reduced.
Costs are reduced. For this reason, the connection case is formed integrally with the rear body frame or the front body frame, and the connection shaft can be removed from the front body frame or the rear body frame.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Note that "before", "after",
“Left”, “right”, “up”, and “down” follow the direction viewed from the driver, and Fr indicates the front side, Rr indicates the rear side, L indicates the left side, and R indicates the right side. Also, the drawings should be viewed in the direction of reference numerals.

FIG. 1 is a side view of an oscillating vehicle according to the present invention. The oscillating vehicle 10 has a front body frame 12 having one front wheel 11, and a rear body frame 1 having two left and right rear wheels 13, 13 (only the left rear wheel is shown in this drawing).
4 is a scooter-type automatic three-wheeled vehicle in which a rolling mechanism 4 is rotatably connected by a connecting mechanism 50. This means that the front body frame 12 is connected to the rear body frame 14 so as to be rollable. Here, “rolling” refers to a motion (swinging) in which the rear body frame 14 rotates with respect to the front body frame 12 or the front body frame 12 rotates with respect to the rear body frame 14 around the longitudinal axis of the coupling mechanism 50. Exercise).

The front body frame 12 includes a front frame 21F.
And a rear frame 21R. The front frame 21F, the rear frame 21R, and the rear body frame (subframe) 14 are cast products of an aluminum alloy. The front frame 21F includes a low floor portion 22 formed of a frame that also serves as a fuel tank storage portion, and a head pipe post 23 extending from the upper front portion of the low floor portion 22 to the upper front.
And a head pipe 24 formed at the tip of the head pipe post 23. The rear frame 21R is connected to the low floor portion 22.
This is a substantially rectangular frame as viewed from the front, which is bolted to the rear end and extends upward at the rear. The rear body frame 14
It is a frame that extends upward at the rear.

Further, the oscillating vehicle 10 has the following (1)-
It has the configuration of (6). (1) A swing arm 31 capable of swinging up and down is extended from the front of the low floor portion 22 to the front, and a knuckle 32 is
That the front wheel 11 is cantilevered via (2) A handle post 33 is rotatably attached to the head pipe 24, and a handle 34 is attached to the upper end of the handle post 33.
And the knuckle 32 is connected to the lower end of the handle 34 via a link mechanism 35. (3) A storage box 36 is provided at the upper rear portion of the rear frame 21R.
And the seat 37 is attached to the upper part of the storage box 36 so as to be openable and closable.

(4) The swing type power unit 38 is mounted on the rear body frame 14, and the rear wheels 13, 13 are mounted on the rear portion of the power unit 38. (5) A power unit 38 is suspended by a rear suspension 39 above the rear upper portion of the rear body frame 14. (6) The parking lock lever 41 is attached to the head pipe 24.
To be able to swing, and the parking lock lever 41
Connecting mechanism 5 and the rear wheel parking brake 42
0 through the parking brake cable 70.

In the figure, 43 is a cushioning member, 44 is a front damper, 45 is a grip, 46 is a brake operating lever,
7, a fuel tank; and 48, a carrier.

FIG. 2 is a side sectional view of the vicinity of the coupling mechanism according to the present invention. The flange 52 of the coupling mechanism 50 is attached to the cross member 26 on the rear surface of the rear frame 21R with bolts 27, and the bracket of the coupling mechanism 50 is mounted. 54 are attached to the vertical member 28 on the back of the rear frame 21R by bolts 29.
(... indicates a plurality. The same applies hereinafter.) Thereby, the connecting shaft 51 extending in the vehicle front-rear direction in the connecting mechanism 50 can be detachably attached to the front vehicle body frame 12.

FIG. 3 is a front view showing a state in which a connecting mechanism is attached to the rear body frame according to the present invention. A tubular crossbar 53 extending left and right is attached to the upper end of a flange 52 by welding. This shows that brackets 54, 54 each having an L-shape in a plan view are attached to both left and right ends by welding.

Further, FIG. 2 shows a rolling buffer mechanism 120 between the rear body frame 14 and the brackets 54, 54.
Indicates connection. Rolling buffer mechanism 120
When the rear body frame 14 rolls with respect to the front body frame 12 (see FIG. 1), or when the front body frame 12 rolls with respect to the rear body frame 14, It is a damper. The hydraulic shock absorber 121 is a cylinder 1 extending left and right.
22 includes a piston (not shown) and a rod 123 connected to the piston.
2, end stays 124, 124 are attached to both ends of the rod 123, and an intermediate stay 126 is attached in the middle of the length of the cylinder 122. The hydraulic shock absorber 121 has (1) end stays 124, 124.
To the brackets 54, 54 of the coupling mechanism 50,
(2) The intermediate stay 126 is connected to the bracket 128 of the rear body frame 14 via a link 127 extending along the cylinder 122. Link 127
Has ball joints at both ends. 12
9 and 129 are boots.

When the connecting shaft 51 rolls with respect to the connecting case 110, or when the connecting case 110 rolls with respect to the connecting shaft 51, the cylinder 122 and the rod 123 move forward and backward relative to each other. I do. Therefore, when the rear body frame 14 rolls with respect to the front body frame 12 (see FIG. 1), or when the front body frame 12 rolls with respect to the rear body frame 14, the cylinder 122 of the hydraulic shock absorber 121 The rod 123 relatively reciprocates left and right, thereby buffering.

For example, in FIG. 1, the rear vehicle body frame 14 rolls when the swingable vehicle 10 loaded with a heavy object on the carrier 48 is run cornering. At this time, the movement of the center of gravity on the rear body frame 14 side is large. Due to the inertia, the rear body frame 14 is further swung left or right. Such a phenomenon can be suppressed by the hydraulic shock absorber 121.

FIG. 4 is a side sectional view of the connecting mechanism according to the present invention, showing the connecting mechanism 50 in a locked state. The connecting mechanism 50 includes a tubular connecting shaft 51 extending in the vehicle front-rear direction,
Two bearings (a needle bearing 55 and a ball bearing 56) that rotatably support the connection shaft 51, a damper mechanism 60 connected to the connection shaft 51, and a connection in the parking brake cable 70 in the connection mechanism 50. A lock operating mechanism 80, a lock mechanism 90 connected to the lock operating mechanism 80, a connecting shaft 51, bearings 55, 56,
Damper mechanism 60, lock operation mechanism 80, lock mechanism 90
Connecting case 110 elongated in the front-rear direction of the vehicle to accommodate
Consists of Such a connection mechanism 50 includes the connection case 1
The front end of the connecting shaft 51 is protruded from 10, and a flange 52 is attached to the front end by welding.

The parking brake cable 70 includes an inner cable 71 connecting the parking lock lever 41 and the rear wheel parking brake 42 shown in FIG.
Front outer tube 72 on parking lock lever side
And a rear outer tube 73 on the rear wheel parking brake side. The inner cable 71 is a wire cable that passes through the front and rear outer tubes 72 and 73. 74 is a front outer tube mounting adapter, and 75 is a rear outer tube mounting adapter.

The lock operation mechanism 80 operates the lock mechanism 90 in accordance with the movement of the parking brake cable 70. The lock mechanism 90 includes the lock operation mechanism 8.
The rotation of the connecting shaft 51 is restricted in accordance with the operation of the zero. In the figure, 57 is an oil seal and 58 is a collar.

FIG. 5 is a sectional view of the lock operating mechanism according to the present invention, and shows that the lock operating mechanism 80 is arranged concentrically with the connecting shaft 51. The lock operation mechanism 80 includes the connecting shaft 5
A hole 51a penetrating in the front-rear direction of the vehicle is opened in the center of
1a, a first slider 81 and a first spring 82 that can move forward and backward are inserted, a first through-hole 81a penetrating in the vehicle front-rear direction is opened at the center of the first slider 81, and is stopped at both ends of the first through-hole 81a. The wheels 83 and 84 are attached, and a second slider 85 and a second spring 86 that can move forward and backward are inserted into the first through hole 81a and between the retaining rings 83 and 84, and penetrate the center of the second slider 85 in the vehicle front-rear direction. The second through hole 85a is opened, a connecting bolt 87 is inserted into the second through hole 85a, and an adjusting nut 88 and a lock nut 89 are screwed into the connecting bolt 87.

The first slider 81 is provided with an engaging recess 81b having a small diameter at the rear end. First spring 8
Reference numeral 2 denotes a compression spring that resiliently moves the first slider 81 toward the rear wheel parking brake (the right side in the drawing). Second spring 86
Is a compression spring for springing the second slider 85 toward the rear wheel parking brake. The combination structure of the connection bolt 87 and the adjustment nut 88 forms an adjustment mechanism.

The connecting bolt 87 is formed by passing the inner cable 71 through a hole penetrating in the vehicle front-rear direction and fixing the inner cable 71 by caulking or the like.
The second spring 86 and the adjustment nut 88 are connected to the second slider 85
Are facing each other. By screwing the adjustment nut 88 and pushing the second slider 85 to the left in the figure, the first slider 81 can be pushed to the left in the figure via the second spring 86 and the retaining ring 83. On the other hand, by loosening the adjustment nut 88, the snap ring 84
The first slider 81 can be returned to the right side in FIG.

Thus, by adjusting the position of the adjusting nut 88 with respect to the connecting bolt 87, the position of the engaging recess 81b can be displaced in the vehicle front-rear direction (the left-right direction in the drawing). As a result, the swing angle of the swing arm 97 of the lock mechanism 90 connected to the engagement recess 81b can be adjusted. Therefore, the swing angle of the swing arm 97 with respect to the inner cable 71 can be adjusted.

Further, the parking lock lever 41
By pulling the inner cable 71 to the left in the drawing (see FIG. 1), the first slider 81 is moved to the left in the drawing via the connecting bolt 87, the adjusting nut 88, the second slider 85, the second spring 86, and the retaining ring 83. Can be done. As a result, the engaging recess 81b moves to the left, and the swing arm 97 swings counterclockwise in the figure.

Returning to FIG. 4, the description will be continued. The connection case 110 is formed integrally with the rear body frame 14. Specifically, the connection case 110 is a two-part case composed of an upper case half 111 and a lower case half 115, and furthermore, the upper case half 111 is formed integrally with the rear body frame 14. is there. The upper and lower case halves 111 and 115 are cast products of an aluminum alloy.

The upper case half 111 is attached to the rear body frame 14.
Are formed integrally, so that a different dedicated case is not required for the rear body frame 14. For this reason, the connection case 110
Can be reduced in size. Further, there is no need for an extra space for assembling a special case to the rear body frame 14, particularly an extra space in the front-rear direction. Therefore, the wheelbase of the oscillating vehicle 10 shown in FIG. 1 can be reduced. Moreover, even if the wheelbase becomes smaller,
It is easy to secure a space for accommodating the fuel tank 47 in the low floor portion 22. Furthermore, since the lock operating mechanism 80 is housed in the connecting case 110, the connecting mechanism 50 can be reduced in size and the lock operating mechanism 80 can be protected from the outside.

Here, the specific mounting structure of the rolling buffer mechanism 120 will be described as follows. That is, the hydraulic shock absorber 12 is attached to the bracket 54 of the coupling mechanism 50.
One end stay 124 was attached with bolts 125, 125. Further, a boss 131 is integrally formed on the upper case half 111, which is a part of the rear body frame 14, and an L-shaped bracket 128 in side view is attached to the boss 131 with the bolt 1.
32, and the intermediate stay 126 was connected to the bracket 128 via the link 127.

FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. 4, and shows a plan cross-sectional configuration in which the components of the connecting mechanism 50 are stored in the lower case half 115. This drawing shows a plan configuration of the lock mechanism 90 in a locked state, and particularly shows the following (1) and (2). (1) The swing arm 97 is attached to the first support shaft 96, and the outer peripheral portion of the engaging concave portion 81 b is sandwiched by the forked portion of the tip of the swing arm 97. (2) The connecting shaft 51 has a serration connection of the lock plate 101 of the lock mechanism 90 at its rear portion and forward of the engagement concave portion 81b.
It is the one that has stopped.

FIG. 7 is a sectional view taken along line 7-7 of FIG. 4, in which the upper surface 116 of the lower case half 115 is superimposed on the lower surface 112 of the upper case half 111, and both are joined by bolts 118. Indicates that you have done.

FIG. 8 is a sectional view taken along line 8-8 of FIG. The damper mechanism 60 has a so-called damper function of performing a buffering action when the connecting shaft 51 rotates and a restoring action to a neutral position, and is generally called a Niorthard damper. More specifically, the damper mechanism 60 has a housing portion 61 formed of a square hole having a substantially square cross section, and a cam plate 62 having a substantially square cross section is serration-coupled to the outer peripheral surface of the connecting shaft 51.
2 are directed toward the respective corners 64... Of the storage section 61, and four elastic bodies 65 are interposed between the respective corners 64. The damping action is performed by the elasticity of the elastic bodies 65.

FIG. 9 is a sectional view taken along the line 9-9 in FIG. 4, and shows the configuration of the lock mechanism 90 in the locked state as viewed from the rear. The lock mechanism 90 bolts the flange 95 of the bearing 94 to the lower case half 115, rotatably supports the first support shaft 96 with the bearing 94, and connects the lower end of the first support shaft 96 through the bearing 94. The lock arm 105 is attached. The swing arm 97 is provided with the engaging recess 8 at the fork portions 98, 98 at the tip.
1b is sandwiched, and a split pin 99 is provided between the distal ends of the forked portions 98, 98 to prevent the split portion 99 from coming off. The lock plate 101 has an arm 103 extending from a base attached to the connecting shaft 51 toward the bottom of the lower case half 115.
A plurality of ratchet teeth 104 at the tip of 03 and on the back
Are radially arranged.

FIGS. 10 (a) and 10 (b) are constructional diagrams and operation diagrams (part 1) of the connecting mechanism according to the present invention, and show that the parking lock lever 41 is in an unlocked state. This figure shows the lock mechanism 90 separately above and below the flange 95. (a) shows a swing arm 97 arranged above the flange 95, and (b) shows a swing arm 97 below the flange 95. Lock arm 105
Is shown. The first support shaft 96 in (a) is the same member as the first support shaft 96 (b).

In (b), the tip of the lock arm 105 is connected to the ratchet arm 1 via one link 106.
07 is connected to the tip. The ratchet arm 107 has a second support shaft 109 parallel to the first support shaft 96.
The arm 10 is rotatably supported, and has a claw 10 at its distal end that faces the ratchet teeth 104.
8, 108 are formed. The second support shaft 109 is
It is a shaft attached to the bottom of the lower case half 115 (see FIG. 4).

Next, the operation of the connecting mechanism 50 having the above configuration will be described with reference to FIGS. FIG. 10 (a)
In, the parking lock lever 41 is in the unlock position where it has fallen downward. In this state, since the engaging recess 81b is at the neutral position shown in the figure, the swing arm 97 is also at the neutral position. For this reason, the pawls 108 of the ratchet arm 107 in FIG. 10B are located at positions away from the ratchet teeth 104 of the lock plate 101. Therefore, the connecting shaft 51 can be rolled with respect to the connecting case 110 (see FIG. 9). After that, the parking lock lever 4
When the user lifts 1 and sets the lock position, the state shown in FIG. 11 is obtained.

FIGS. 11 (a) and 11 (b) are constructional diagrams and operation diagrams (part 2) of the connecting mechanism according to the present invention, and show that the parking lock lever 41 is in a locked state. In this figure, the lock mechanism 90 is connected to the flange 9 similarly to FIG.
5 is divided into an upper part and a lower part.

When the inner cable 71 is pulled by setting the parking lock lever 41 to the lock position, the engagement concave portion 81b moves toward the front outer tube 72.
In response to the movement of the engagement recess 81b, the swing arm 97 swings counterclockwise in the figure, and swings the lock arm 105 counterclockwise through the first support shaft 96. The lock arm 105 causes the ratchet arm 107 to swing counterclockwise through the link 106. As a result, the pawls 108 of the ratchet arm 107 mesh with the ratchet teeth 104.
Lock 1 to restrict rotation. Therefore, the connecting shaft 51 cannot be rolled with respect to the connecting case 110 (see FIG. 9).

On the other hand, when the inner cable 71 is pulled toward the front outer tube 72, the rear wheel parking brake 42 shown in FIG. 1 is operated to lock the rear wheels 13, 13. As is clear from the above description, only by setting one parking lock lever 41 to the lock position,
The rocking type vehicle 10 can be parked by preventing the rear wheels 13 and 13 from rolling and preventing the rear body frame 14 from rolling the front body frame.

FIGS. 12 (a) to 12 (c) show an embodiment of the present invention.
FIG. 9 is an explanatory diagram of an assembling procedure of a rear body frame, a coupling mechanism, and a rolling buffer mechanism. The assembling procedure is as follows. First, in FIG.
Assemble. That is, the various components housed in the connection case 110 are assembled to the lower case half 115. Then, the upper surface of the lower case half 115 is superimposed on the lower surface of the upper case half 111, and the lower case half 115 is joined by bolts 118.

In this manner, the connecting mechanism 50 can be partially incorporated into the rear body frame 14. Moreover,
Since the connecting case 110 is a two-part case, the components of the connecting mechanism 50, that is, the bearings 55 and 56, the damper mechanism 60, the parking brake cable 70, the lock operating mechanism 80, and the lock mechanism 9
Parts such as 0 can be assembled together to form a unit. Therefore, the assembling workability of the connecting mechanism 50 is high.
After the lower case half 115 is assembled, the upper case half
The connection mechanism 50 can be very easily assembled to the rear body frame 14 only by bolting to the rear body frame 14.

Next, the rolling buffer mechanism 120 is assembled in (b). That is, the end stays 124, 124 of the hydraulic shock absorber 121 are attached to the brackets 54, 54 attached to the connecting shaft 51 with the bolts 125, 125. Further, the hydraulic shock absorber 121 is attached to the boss 131 of the upper case half 111 via the bracket 128 and the link 127.
Of the intermediate stay 126 is attached with a bolt 132. Thus, the assembly of the connecting mechanism 50 and the rolling buffer mechanism 120 to the rear body frame 14 is completed.

Finally, in (c), the flange 52 attached to the connecting shaft 51 and the left and right brackets 54,
54 on the back of the rear frame 21R, bolts 27, 29,
Attach at 29. Thus, the front body frame 1
When the rear body frame 14 is mounted on the vehicle body 2, the connection shaft 51 and the rolling buffer mechanism 120 of the unitized connection mechanism 50 can be detachably mounted on the front body frame 12. Therefore, the assembling workability of the connecting mechanism 50 and the rolling buffer mechanism 120 is high.

Next, a modification of the oscillating vehicle 10 will be described with reference to FIGS. The same members as those shown in FIGS. 1 to 12 are denoted by the same reference numerals, and description thereof will be omitted. FIG. 13 is a side view of an oscillating vehicle (modification) according to the present invention. Oscillating vehicle 140 of a modified example
Is characterized in that a connection case 110 is formed integrally with the front body frame 12, and a connection shaft 51 extending in the vehicle front-rear direction is detachably attached to the rear body frame 14. The front body frame 12 is a divided frame that is divided into two parts in the front and rear so that the front part of the rear frame 21R is vertically overlapped with the rear part of the front frame 21F. 110 is provided. Lower case half 1 behind the front frame 21F
15 are formed integrally, and the upper case half 111 is formed integrally with the front part of the rear frame 21R.

The rear body frame 14 includes a bracket 152 for attaching the connecting shaft 51 to the lower front portion by bolts 151 and 151, a frame portion 153 extending upward and rearward from the bracket 152 and further extending the tip thereof further rearward. A swing arm 155 is attached to the lower part of the front part of the frame part 153 so as to be able to swing up and down by a pivot 154. The swing arm 155 has a power unit 157 mounted thereon and is suspended from a frame 153 by a rear suspension 158. The front frame 21F and the rear frame 21R are cast products of an aluminum alloy. It is optional to make the rear body frame (sub-frame) 14 a cast product of an aluminum alloy. Further, this figure shows that the fuel tank 47 and the seat 37 are attached to the upper front part of the rear frame 21R, and the upper part of the fuel tank 47 is covered with the seat 37.

FIG. 14 shows a connecting mechanism (modification) according to the present invention.
FIG. The connection mechanism 160 of the modified example includes:
The connection mechanism 50 shown in FIG. 4 is substantially reversed. This is because the arrangement of the connection shaft 51 and the connection case 110 is reversed. However, the first spring 82
Is interposed between the front inner surface of the connection case 110 and the front end of the first slider 81.

Since the connecting case 110 is a two-part case, the components of the connecting mechanism 160 can be assembled together into the upper case half 111 or the lower case half 115 to form a unit. Therefore, the assembling workability of the connecting mechanism 160 is high. The upper case half 111 or the lower case half 115 after being assembled is simply bolted to the lower case half 115 or the upper case half 111, and the front body frame 1
2, the connecting mechanism 160 can be assembled very easily.

In the above embodiment of the present invention,
The swing type vehicle 10 is not limited to a scooter type motorcycle.

[0051]

According to the present invention, the following effects are exhibited by the above configuration. Claim 1 removably attaches a connecting shaft extending in the vehicle front-rear direction to the front body frame or the rear body frame,
Since the connection case is formed integrally with the rear body frame or front body frame, the connection mechanism is assembled into the rear body frame or front body frame as a unit by attaching the connection shaft, bearing and damper mechanism to the connection case. By attaching the connecting shaft of the connecting mechanism to the front body frame or the rear body frame, the front body frame can be connected to the rear body frame by the connecting mechanism. Therefore, assembling workability of the connecting mechanism is enhanced. Further, since the connecting case is formed integrally with the rear body frame or the front body frame, a connecting member as a separate member is not required, the connecting case is reduced in size, the number of parts is reduced, and the cost is reduced.

[Brief description of the drawings]

FIG. 1 is a side view of an oscillating vehicle according to the present invention.

FIG. 2 is a side cross-sectional view around a coupling mechanism according to the present invention.

FIG. 3 is a front view showing a state where a connecting mechanism is attached to a rear body frame according to the present invention;

FIG. 4 is a side sectional view of the coupling mechanism according to the present invention.

FIG. 5 is a sectional view of a lock operating mechanism according to the present invention.

FIG. 6 is a sectional view taken along line 6-6 in FIG. 4;

FIG. 7 is a sectional view taken along line 7-7 of FIG. 4;

8 is a sectional view taken along line 8-8 in FIG. 4;

FIG. 9 is a sectional view taken along line 9-9 in FIG. 4;

FIG. 10 is a configuration diagram and operation diagram (part 1) of a coupling mechanism according to the present invention.

FIG. 11 is a configuration diagram and operation diagram (part 2) of the coupling mechanism according to the present invention.

FIG. 12 is an explanatory view of an assembling procedure of the front and rear body frames, the connecting mechanism and the rolling buffer mechanism according to the present invention.

FIG. 13 is a side view of an oscillating vehicle (modification) according to the present invention.

FIG. 14 is a side sectional view around a connection mechanism (modification) according to the present invention.

[Explanation of symbols]

10, 140: swing type vehicle, 11: front wheel, 12: front body frame, 13: rear wheel, 14: rear body frame, 50,
160 ... connecting mechanism, 51 ... connecting shaft, 55, 56 ... bearing,
60 ... damper mechanism, 110 ... connection case.

Continued on the front page (72) Inventor Seiichi Kurobori 1-4-1 Chuo, Wako-shi, Saitama F-term in Honda R & D Co., Ltd. (Reference) 3D011 AA04 AD04 AD06 AG01 AG03 AH02 AL11

Claims (1)

[Claims] 1. An oscillating vehicle in which a front body frame provided with front wheels is connected to a rear body frame provided with rear wheels in a rotatable manner by a connection mechanism, wherein the connection mechanism comprises a front body frame or a rear body frame. A connection shaft extending in the vehicle front-rear direction is detachably mounted on the vehicle body, a connection case is integrally formed on the rear body frame or the front body frame, and a bearing for rotatably supporting the connection shaft on the connection case; and a connection shaft. An oscillating vehicle characterized by housing a damper mechanism that functions to buffer the rotation of the vehicle and to restore the vehicle to a neutral position.