JP3335234B2 - Oil tank device for scooter type vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil tank device applied to a scooter type vehicle provided with a large storage box which is opened and closed by the operation seat below the operation seat.

[0002]

2. Description of the Related Art In a scooter type vehicle having a separate lubrication type two-cycle engine, it is necessary to provide an oil tank for storing lubricating oil. On the other hand, a scooter in which a large storage box capable of storing a helmet is provided below a driving seat is also known.

In the case where such a large storage box is provided, conventionally, this oil tank is usually arranged behind or in front of the storage box. That is, the storage box and the oil tank are arranged side by side below the operation seat. In some cases, the oil tank is disposed below the front of the storage box, and an oil inlet is provided on the front surface of the rear cover, that is, on the surface on the footrest side.

[0004]

2. Description of the Related Art In the case where oil tanks are arranged in front of and behind a storage box, the opening area of the storage box is reduced by the oil tank due to restrictions. For this reason, there has been a problem that it is difficult to put a large helmet in and out, and a large helmet cannot be stored.

[0005] intended to accommodate the oil tank to the lower front of the object Nyuhako is or becomes shallow bottom of the object input boxes, it is necessary to avoid interference with the oil tank by recessed bottom of the object input box upward Occurs. For this reason, there was a problem that the capacity of the storage box was reduced. Further, there is a problem that the oil injection port becomes low, so that the injection operation becomes difficult.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has been made to increase the opening area of a storage box and to increase the capacity to improve the storage capacity of a large helmet.
It is another object of the present invention to provide an oil tank device for a scooter-type vehicle that can improve workability of lubrication.

[0007]

According to the invention, this object is achieved by providing a fluid between the driver's seat and the engine unit located therebelow.
In a scooter-type vehicle in which the base type helmet can be stored upside down, the lower part gradually decreases in diameter and the upper part
The driver's seat opens and closes a wide opening that is approximately oval and long before and after.
From the rear of the large flat box and the substantially flat footrest , a part enters the recess provided on the left and right sides of the front bottom of the flat box ,
A pair of left and right rear frames that extend upward and diagonally rearward, a rear cover that covers the lower part of the operation seat and has a lower part bulging outward, and the rear frame accommodated between the rear cover and the storage box; the lower front along the upper edge of the
It is elongated in Ri Rutotomoni its front before the product Nyuhako
A bulge that bulges out from the outside of the rear frame at the bottom side
And an oil tank having a portion, said oil tank
Face the oil inlet on the opening provided in the rear cover.
An oil tank device for a scooter-type vehicle, characterized in that a lid plate is detachably attached to the lever opening and lubricating oil is supplied from a bulging portion at the front of the oil tank to the engine located below the bulging portion. Achieved.

[0008]

FIG. 1 is a left side view showing a part of an embodiment of the present invention, FIG. 2 is a plan view mainly showing a storage box, FIG. 3 is a right side view, and FIG. 4 mainly shows an engine unit. 5 is an end view taken along line VV in FIG. 1, and FIG. 6 is an end view taken along line VI-VI in FIG. The cross-sectional position in FIG.
As shown by the line V-V in FIG. 1, the right half is behind the left half.

This embodiment is a two-wheel scooter, the frame of which has a single main tube 10 extending downward and rearward from a steering axle (not shown) for supporting front wheels so as to be steerable;
A pair of left and right rear frames 12 (12a, 12b) extending rearward from the lower end of the main tube 10 is provided.
Front of the rear frame 12 passes through the substantially flat footrest 14, the two side rear portion thereof enters a portion in the recess 42a provided in the front bottom sides of the inlet box 42 those to be described later from the rear of the footrest 14 Spreading upward and extending backward.

The rear frame 12 extends rearward through a lower side of a post box 42 to be described later.
To a height near the upper limit of wheel travel. The rear ends of the rear frames 12a and 12b are connected to each other by a generally arc-shaped bracket 16 protruding upward and a substantially plate-shaped bracket 18 (FIGS. 1 and 3).

Reference numeral 20 denotes an engine unit, which is a two-cycle single cylinder engine 22 of a separate lubrication system and a forced air cooling system.
A transmission case 24 extending substantially horizontally rearward from the left side of the engine 22; and a rear wheel 26 held at the rear of the transmission case 24. This engine unit 20
Has a cylinder 22 a protruding substantially horizontally forward, and an upper portion of the engine 22 is supported by the rear frame 12.

That is, a pair of right and left engine brackets 28 (28a, 28b) are fixed to the rear frame 12, and the upper part of the engine 22 is provided with links 30 (30a, 30b).
The bracket 28 is pivotally supported by the bracket 28 via b) so as to be vertically swingable. Reference numeral 32 denotes a cushion unit, the lower end of which is pivotally supported by the rear end of the transmission case 24, and the upper end of which is pivotally supported by the lower surface of the bracket 18.

The engine unit 20 includes a rear wheel 26.
The exhaust muffler 32 (FIGS. 3 and 4) located on the right side of FIG. 1 and the air cleaner 34 (FIGS. 1 and 4) adjacent to the front left of the engine 22, that is, the left side of the cylinder 22a are fixed. A carburetor 36 is provided on the upper surface of the crankcase of the engine 22.
(FIG. 4) is fixed. Therefore, they swing up and down integrally with the engine unit 20.

Reference numeral 38 denotes a fuel tank, a part of which is mounted between the arc-shaped bracket 16 and the flat plate-shaped bracket 18 so as to enter from behind. That is, the fuel tank 38 is formed by pressing a pair of front and rear half-pressed halves into the flange 3
8a, these flanges 38a
The upper portion is bolted to the arc-shaped bracket 16 and the lower portion is bolted to the flat bracket 18. Numeral 40 denotes a fuel filler cap, which penetrates a rear cover 60 described later and projects rearward of the operation seat 52.

Reference numeral 42 denotes a large synthetic resin container.
Lifting Chisono bottom a retractable capacity by full-face-type helmet 44 (Fig. 1) upside down gradually reduced in diameter downward
Have . It also has a long and wide opening before and after the approximate egg shape. The container box 42 is formed integrally with a flat plate portion 46 extending rearward from the rear edge of the opening and overlapping the upper surface of the arc-shaped bracket 16.

The flat plate portion 46 is bolted together with the front end of the rear loading platform 48 to the upper surface of the arc-shaped bracket 16 with bolts. The bottom surface of the front part of the storage box 42 is the rear frames 12a and 12b.
Bracket 50 (50a, 50b, FIG. 1,
It is put on 3 and 4) and bolted. Storage box 42
Recesses 42a are formed on both left and right sides of the front bottom portion.
A part of the rear frame 12 enters the part 42a,
The lower rear portion protrudes downward from between the left and right rear frames 12a and 12b.

As shown in FIG. 3, a storage box 51a for storing a battery 51 is attached to the bottom of the storage box 42. The storage box 51a has a lid that can be opened and closed at the front end. The battery 51 can be attached and detached by removing the front half of a rear cover 60 described later.

Numeral 52 denotes an operation seat, as shown in FIG. 5, in which an elastic material is placed on a resin bottom plate 54 and covered with a skin. The seat bottom plate 54 is formed in a shape that is longer before and after than the upper opening of the storage box 42, and its front end is hinged to the storage box 42 by a hinge 56 so as to be openable and closable.

The operation sheet 52 is lowered and the storage box 42
When the opening is closed, the rear end of the seat bottom plate 54 is locked by engaging with a seat lock (not shown) provided on the arc-shaped bracket 16. At this time, the seat bottom plate 54 has six seating portions 58 (58a to 58) shown by hatching in FIG.
The sheet load is supported by the object box 42 in contact with f).
The lower part of the operation seat 52 is covered with a rear cover 60,
The rear cover 60 smoothly continues to the footrest 14.

Reference numeral 62 denotes a resin oil tank. The oil tank 62 stores lubricating oil supplied to the engine 22 and the carburetor 36 by a metering pump (not shown). The oil tank 62 is a storage box 4
Rear frame 1 on the right side between the rear cover 2 and the rear cover 60
It is formed long in the front-rear direction and the up-down direction so as to enter the space above 2b.

As shown in FIGS. 3 and 6, the front portion of the oil tank 62 is supported by a tank support 64 formed integrally with the right engine bracket 28b. That is, the projection 62a projecting from the oil tank 62 is inserted into and fixed to the rubber bush 66 mounted on the tank support 64. The rear upper part of the oil tank 62 is screwed to a fixed seat 68 fixed to the outer wall of the storage box 42.

The bottom of the oil tank 62 extends along the upper edge of the rear frame 12a, and an oil inlet 70 is formed on the upper surface of the rear portion so as to be bent toward the right side of the vehicle body. The oil inlet 70 faces the inside of a cover plate 72 (FIG. 5) provided on the rear cover 60. This lid plate 72
Is detachably attached to the rear cover 60 with a plurality of claws,
The upper edge is covered with a seat bottom plate 54 of the operation seat 52.

That is, a pair of right and left openings are formed in the rear cover 60 near the rear lower edge of the driving seat 52.
The lid plate 72 is detachably attached to the opening on the right side. A cover plate 74 used as a standing handle is fitted into the opening on the left side, and the
Is fixed with screws. Further, the cover plate 74 is engaged with the opening edge of the container box 42 from below, and its upward rotation is regulated, so that the cover plate 74 is more securely fixed. Therefore, when a main stand (not shown) is hung, the vehicle body can be lifted by inserting a fingertip into the cover plate 74. At the time of oil injection, the operation seat 52 is opened, the right cover plate 72 is removed,
The oil may be injected by removing the cap 76 of the oil inlet 70 facing this opening.

The front portion of the oil tank 62 protrudes downward from the outside of the rear frame 12b. That is, since the distance between the rear frames 12a and 12b is gradually narrowed along the side surface of the storage box 42 toward the footrest 14, the distance between the rear frame 12b and the rear cover 60 near the front of the storage box 42 is reduced. Is gradually becoming wider.

The rear frames 12a and 12b are deviated so that a part thereof enters the concave portion 42a provided at the bottom of the storage box 42, and the interval between the frame 12b and the rear cover 60 is further enlarged. The oil tank 62 swells outwardly of the rear frame 12b using this interval.
An oil pipe 7 is provided on the lower surface of the bulging portion 62b (FIG. 3).
8 are connected.

Since the engine 22 is located below the front part of the storage box 42, the oil tank 62 comes closer to the engine 22. Therefore, the oil pipe 7
8 is short, and it is desirable that the oil pipe 78 can be passed near the engine bracket 28.

Since the storage box 42 accommodates the helmet 44 upside down, the lower part of the storage box 42 can be gradually reduced in diameter along the curved surface of the top of the helmet 44 so as to be narrow. Therefore, the lower part of the storage box 42 and the rear cover 6
A relatively large space is formed between the two. In the present invention, the capacity of the oil tank 62 is increased by effectively utilizing this space.

In the embodiment, the rear frame 12b is displaced to the reduced diameter portion or the concave portion 42a at the lower part of the storage box 42,
The accommodation space of the oil tank 62 is further enlarged. Further, since the inlet 70 of the oil tank 62 faces the side surface of the rear cover 60, the inlet 70 does not reduce the opening area of the upper part of the storage box 42. That is, the opening of the storage box 42 can be further enlarged, and the loading and unloading of the load can be further facilitated.

[0029]

The invention of claim 1 according to the present invention, as described above, along the upper edge of the rear frame extending toward the swash on the rear and forms the oil tank to enter the gap between the rear cover and goods inlet box, the oil With the inlet of the tank facing the opening of the rear cover
As a result, the capacity of the oil tank can be increased without reducing the opening of the storage box. That is, since the storage box accommodates the helmet upside down, the lower part can be gradually reduced in diameter by reducing the diameter of the lower part, so that the space between the lower part of the storage box and the rear cover can be widened. Because. Especially recesses on both sides of the front bottom of the storage box
The rear frame is partially inserted into these recesses.
It spreads to the left and right and extends rearward on the side of the recess
The gap between the rear frame and the rear cover increases. this
In the invention, the front part of the oil tank is
Swells downward from the outside of the frame to increase capacity
It is.

Since the position of the oil tank is low,
Since the opening of the storage box can be secured sufficiently large by making the opening of the rear opening facing the opening of the rear cover, it is easy to take in and out large-sized luggage such as a helmet, and the storage capacity is good. Further, the bottom of the oil tank is inclined forward and downward, and the front is closer to the engine, so that the oil pipe is shorter.
Since the oil tank is low and located near the center of the body, it is suitable for lowering the center of gravity and optimizing the load distributed to the front and rear wheels.

[Brief description of the drawings]

FIG. 1 is a side view of a part of one embodiment of the present invention.

FIG. 2 is a plan view mainly showing a storage box;

FIG. 3 is a right side view of the same.

FIG. 4 is a plan view mainly showing an engine unit.

FIG. 5 is an end view taken along line VV in FIG. 1;

6 is an end view taken along line VI-VI in FIG. 3;

[Explanation of symbols]

Reference Signs List 12 rear frame 14 footrest 20 engine unit 42 storage box 42a recess 52 operation seat 60 rear cover 62 oil tank 62b bulging portion 70 oil inlet 72 cover plate

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B62J 31/00 B62J 9/00 B62J 23/00 B62K 11/10

Claims (1)

(57) [Claims] 1. A scooter-type vehicle in which a full-face helmet can be stored upside down between a driver's seat and an engine unit located therebelow.
The lower part is gradually reduced in diameter, the upper part is roughly oval, and the front and back are long and wide.
A large storage box whose part is opened and closed with an operation seat, and provided on the left and right sides of the front bottom of the storage box from the rear of the substantially flat footrest.
A pair of left and right rear frames extending partly into the recessed part and extending leftward and upward while extending to the left and right, a rear cover that covers the lower part of the operation seat and a lower part bulges outward, the rear cover and the container box, is housed between and the formed long forwardly downward along the upper edge of the rear frame Rutotomoni its
Outside of the rear frame on the side of the front bottom of the storage box
And an oil tank having a bulging portion which bulges from the side downwards, the oil inlet of the oil tank Riyaka
The lid plate can be removed from this opening facing the opening provided in the bar
While, the oil tank unit of the scooter-type vehicle and supplying the lubricating oil to the engine located below the front portion of the bulged portion of the oil tank.