JPH0357787A - Load accommodating box device for small-sized vehicle - Google Patents

Abstract

PURPOSE:To accommodate a load accommodating box having a large capacity without increasing the wheel base and without increasing the dimension of a vehicle body by installing the load accommodating box which is extended over a power unit from the vicinity of a head pipe. CONSTITUTION:A load accommodating box made of synthetic resin is held in vertically swingable manners under the inclined upper rearward extended part which is positioned behind the horizontal part of the lower tube 14 of a power unit 24, and the bottom is positioned over the horizontal part of the lower tube 14, and extended upward through the part between the right and left side frames 16, and the front wall 44a erects nearly vertically in sufficiently close to a head pipe 12, and the upper part is inclined rearward at a sharp angle in comparison with the head pipe 12. The rear part of the accommodating box is extended over an engine 26 from the part between the right and left lower tubes 14, and then erected upward. The bottom of the accommodating box is fixed onto the lower frame by a proper number of brackets 5 fixed onto the lower frame 14, and the side surface is fixed onto the side frame 16 through a packing by a proper number of rivets, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a luggage storage box device applied to a small vehicle such as a unit swing type motorcycle.

(Background of the Invention) It is generally difficult to mount a large-capacity luggage storage box on two- or three-wheeled vehicles that have one steering front wheel. It is being considered to form a power unit with a unit swing type rear transport suspension system, and to install a large-capacity luggage storage box in front of the driver's seat (for example,
-101758).

If the capacity of the storage box is to be further increased when the storage box is disposed in front of the driver's seat in this manner, it is necessary to shift the power unit and the driver's seat rearward. As a result, the distance between the front and rear wheels, that is, the wheelbase increases, resulting in an increase in the size of the vehicle body.

(Object of the Invention) The present invention was made in view of the above circumstances, and provides a small vehicle that can accommodate a large capacity luggage storage box without increasing the wheelbase or increasing the size of the vehicle body. The purpose of the present invention is to provide a luggage storage box device.

(Structure of the Invention) According to the present invention, this object is achieved by a vehicle body frame that descends from a head pipe, extends rearward almost horizontally, and further extends diagonally upward rearward, and a body frame that is held by the head pipe so as to be rotatable left and right. In a small vehicle equipped with one steering front wheel, and a power unit to which a rear wheel is attached and is held vertically swingably below an obliquely upward rear extending portion of the vehicle body frame, from the vicinity of the head vibe to the This is achieved by a luggage storage box device for a small vehicle characterized by comprising a luggage storage box extending above the power unit.

(Embodiment) FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a sectional view taken along the line [1-III in FIG. 1.

In FIGS. 1 and 2, the reference numeral 10 denotes a vehicle body frame, which includes a head vibrator 12 and a pair of left and right lower tubes that descend from the head pipe 12 diagonally downward to the rear, extend almost horizontally to the rear, and then extend diagonally upward to the rear. 14 (14a.14b
), and a side frame 16 (16a, 16b) extending diagonally downward and rearward from the head vipe 12 at a gentler angle than the lower tube 14 and having a rear end fixed to the lower tube 14.

A front fork 18 is held in the head pipe 12 so as to be rotatable left and right, and a steering front wheel 20 is attached to the lower end of the front fork l8.
is installed. 22 is a steering handle.

24 is a power unit. The power unit 24 includes a single-cylinder forced air-cooled two-stroke engine 26, a transmission case 28 extending rearward from the left side of the crankcase of the engine 26, and a rear wheel 30 attached to the rear end of the transmission case 28. It has an exhaust muffler 32 located on the right side of this rear wheel 30 and an air cleaner 34 arranged on the left side of the engine 26. The engine 26 has a cylinder that projects substantially horizontally forward from the crankcase.

The power unit 24 is held below the diagonally upward rearward extending portion located behind the horizontal portion of the lower tube 14 so as to be able to swing vertically. That is, the upper part of the crankcase of the power unit 24 is pivotally attached to the vicinity of the rear end of the side frame 16 via the link 36.

On the other hand, the lower part of the crankcase is supported by one cushion unit 42 via links 38 and 40. That is, the lower portion of the lower tube 14 is bent substantially horizontally, and the front end of the cushion unit 42 is pivotally supported at the front end of this horizontal portion. On the other hand, the vicinity of the center of the link 40 is pivoted to a bracket 43 fixed to the rear part of this horizontal part, the upper end of this link 40 is pivoted to the rear end of the cushion unit 42, and the lower end is attached to the crankcase by the link 38. connected. As a result, a known unit swing type rear wheel suspension is formed.

44 is a luggage storage box made of hard resin. The bottom of the storage box 44 is located on the horizontal portion of the lower tube 14, and extends upward through the left and right side frames 16. The front wall 44a of the storage box 44 is sufficiently close to the head pipe 12 and stands up almost vertically, and its upper part is tilted rearward at a steeper angle than the head pipe 12. The rear part of the storage box 44 extends above the engine 26 from between the left and right lower tubes l4, and then rises upward. The upper part of this rear wall 44b is retreated rearward. The rear edge of the opening of this retracted storage box 44 is lower than the upper edge of the front wall 44a, that is, the front edge of the opening. Furthermore, the left and right walls of the storage box 44 stand up almost vertically as shown in FIG. The bottom of this storage box 44 is fixed to the lower frame 14 by an appropriate number of brackets 45 fixed to the lower frame 14, and the side surfaces are attached to an appropriate number of side frames 16 via packings 45a as shown in FIG. It is fixed with lippets etc.

Reference numeral 46 denotes an opening/closing lid that is placed over the opening of the storage box 44. The front end of the opening/closing M46 is pivotally supported by the cowling 50 by a hinge 48, and the rear end can be locked near the rear edge of the opening of the storage box 44 by a lock (not shown). A rubber seal 52 is attached to the opening edge of the storage box 44, and when the opening/closing lid 46 is closed, it is pressed against this seal 52 to prevent rainwater from entering into the storage box 44.

In this way, attach the front wall 44a of the storage box 44 to the head pipe 12.
Since it is bulged forward so as to be close enough to the front, its capacity can be sufficiently expanded to accommodate large items such as a helmet 54. In addition, since the upper part of the front wall 44a of the storage box 44 is located far away from the head pipe 12 and the steering handle 22, it becomes difficult to interfere with them, and especially if the steering handle 22 is made into a T-shape as in the embodiment, interference will be further reduced. It becomes difficult.
Further, since the rear edge of the opening of the storage box 44 is lower than the front edge, it is possible to easily take items in and out from the opening toward the bulging portion of the front wall 44a, resulting in good storage workability.

Further, in this embodiment, as shown in FIG.
When viewed from the side, the center of the opening edge is hollowed out below the straight line connecting the front and rear edges. Therefore, when inserting a hand through this opening, the hand can be inserted deep into the storage box 44, making it easier to take in and take out luggage.

Reference numeral 60 denotes a fuel tank, which is mounted at the rear of the storage box 44 and at a position sandwiched between the lower tube 14 and the retreated portion of the upper part of the rear wall 44b. 62 is a lubricating oil tank, and 64 is a battery, which are located behind the fuel tank 60 and are arranged side by side on the left and right. Reference numeral 66 denotes a driver's seat, which covers the upper part of the fuel tank 60, lubricating oil tank 62, and battery 64. By opening this seat 66, fuel and lubricating oil can be supplied. In addition, 68 (68a, 68b) in the figure
) is a footrest attached to the lower end of the side frame 16.

In this embodiment, the storage box 44 is fixed to the side frame 16 with rivets or the like, but it may simply be held in contact with the side frame without being fixed. Furthermore, the upper part of the side frame 16 of the storage box 44 can be expanded in the width direction, thereby further increasing the capacity.

4 to 6 are side views of respective other embodiments. These embodiments are based on the lower frame 14 of the vehicle body frame IOA.
A, one down tube 14Aa descending from the head pipe 12, and a pair of retainer tubes 14Ab. c.
It was composed of

The one in Figure 4 has a fuel tank 60A above the storage box 44A.
A lid 46A provided on the side of the cowling 50A allows cargo to be taken in and taken out from the side. Here, as shown in FIG. 2, the left and right upper frames 16a, 16b are widened at their intermediate portions in the width direction of the vehicle body, making it possible to increase the opening width of the storage box 44A facing between these widened portions. ing.

The one in FIG. 5 has a fuel tank 60 located below the storage box 44B.
B, and the fuel filler port is placed under an opening/closing lid 46B that opens and closes upward around a hinge 48A. The front part 100 of the cowling 50B can be opened and closed forward about a hinge 102, and the rotating end of the front part 100 is locked by engaging with the opening/closing lid 46B. In this embodiment, the opening/closing lid is attached to the cowling 50B, similar to the one in FIG.
It is installed on the side of the lid, and the fuel filler port is exposed to the inside of this opening/closing lid. In this embodiment, the upper part of the power unit 24A is covered with a fender 104, and this fender 1
The muffler 32A, air cleaner vaporizer, etc. were housed inside the 04. This fender 104 may be integrated with a shroud for forced air cooling of the engine.

Furthermore, the tank capacity can be increased by bulging the bottom of the fuel tank 60B into the space on both sides or one side of the cushion unit 42B, but it is also possible to increase the tank capacity by providing a small luggage compartment in the space on both sides or one side of the cushion unit 42B. Good too.

In the case shown in FIG. 6, a part of the front wall of the storage box 44C is formed of a light-transmitting member 106, and a light guiding hole 110 is provided at the lower rear part of the headlamp 108, so that a part of the light from the headlamp 108 is formed. Storage box 44C
It was designed to lead inside and illuminate the interior. Furthermore, 5th and 6th
In the illustrated embodiment, the rear of the storage box 44C is connected to the driver's seat 66A.
Since it extends over the entire lower surface of the long object 1l2 (Fig. 6)
It is easy to store luggage, and if the driving seat 66A can be opened and closed, it is also easy to store luggage. In this figure, parts corresponding to those in FIG. 1 are denoted by the same reference numerals, so the description thereof will not be repeated.

(Effects of the Invention) As described above, the present invention has a luggage storage box extending from the vicinity of the head pipe to above the power unit, so the vehicle body can be improved without increasing the wheelbase. It is possible to increase the storage capacity of luggage without increasing the size.

[Brief explanation of drawings]

FIG. 1 is a side view of one embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a sectional view taken along the line TI[-III in FIG. FIG. l○, IOA...Body frame, 12...Head pipe, 14, 14A...Lower frame, 24, 24A...Power unit, 30...Rear wheel, 44, 44A-C... Luggage storage box.

Claims (1)

[Scope of Claims] A vehicle body frame that descends from the head pipe, extends rearward substantially horizontally, and further extends obliquely upward and rearward, and one steering front wheel held by the head pipe so as to be rotatable left and right. and,
In a small vehicle equipped with a power unit to which a rear wheel is attached and which is held vertically swingably below a diagonally upward rear extension of the vehicle body frame, cargo extending above the power unit from near the head pipe. A luggage storage box device for a small vehicle, characterized by comprising a storage box.