JPH03220075A - Housing box fixing device for motorcycle - Google Patents

Abstract

PURPOSE:To improve the demounting work performance of a housing box by axially supporting the housing box which is arranged from a main tube to the front part of a seat rail, to the rear upper part on the seat rail by a hinge mechanism and fixing the front edge part on the front edge upper surface of the main tube. CONSTITUTION:When a housing box 15 is arranged toward the upper front part of a seat rail 5 from over the left and right main tubes 2 in pairs which extend from a head pipe 1, the housing box 15 is shaped to the shape set along the shapes of the seat rail 5 and a reinforcing tube 2a arranged at the position close to the upper part of the main tube 2, and an upper surface opened port 23 is opened and closed by a lid 25 supported in swingable manner by a hinge mechanism 24. The housing box 15 itself is supported in swingable manner on the upper rear part on a base plate 27 fixed on the seat rail 5 by a hinge mechanism 28, and a front plate 30 which is installed on the front edge lower surface through a cushion 29 and projects forward is tightened on the reinforcing tube 2a by a bolt 31 and fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a storage box attachment device for a two-wheeled motor vehicle, which is disposed at the upper center of the vehicle body.

(Prior art) In general, motorcycles have an engine unit mounted below a main tube extending rearward from a head pipe, and a seat placed on a seat rail extending further rearward from the rear end of the main tube. However, if a storage box that can store large items such as a helmet is required, the fuel tank can be moved to another location, such as under the seat, and the storage box is placed on the main tube.

This storage box is desired to be an attachment device that can be easily attached and detached for maintenance work on the engine unit and its surrounding molds.

However, since such attachment devices are naturally easy to reach and work with, consideration must be given to ensuring that they are visible and therefore do not impair visibility.

(Problems to be Solved by the Invention) The present invention has been made in view of the above points, and provides a storage box installed in the upper center of the vehicle body that is easy to attach and detach, and that is compatible with the surrounding shape. An object of the present invention is to provide a storage box attachment device for a two-wheeled motor vehicle that can improve visibility.

[Structure of the invention]

(Means for Solving the Problems) In accordance with the above object, the storage box device for a two-wheeled motor vehicle of the present invention includes an engine unit mounted below a main tube extending rearward from a head pipe, and In a two-wheeled motor vehicle in which a seat is placed on a seat rail that extends further rearward, a storage box that can be opened and closed and is equipped with a rad is arranged above the main tube and the front of the seat rail. The lower rear end is pivotally supported on the seat rail by a hinge mechanism so that it can swing rearward and upward, and a front plate that protrudes forward and has a semicircular notch formed on the front edge is fixed to the lower front end. The plate is attached to the upper surface of the front end of the main tube near the connection part with the head pipe so as to surround the rear surface of the head pipe using the semicircular notch.

(Function) With this structure, by releasing the front plate at the front end, the storage box can be swung rearward and upward by the hinge, which opens the upper part of the engine unit and allows the engine, its catch mold, etc. Maintenance work becomes easier.

After work, the storage box is correctly positioned on the main tube by simply folding it down, and the front plate at the front end can be fixed immediately without the need for adjustment, making it easy to install.

Additionally, the shape of the front plate is set along the connection between the head pipe and main tube, which hides the weld bead at this connection, giving it a clean appearance.

(Example) DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings showing embodiments of the present invention will be explained below.

FIG. 1 is a longitudinal sectional side view of a motorcycle equipped with a lid opening/closing device of the present invention, FIG. 2 is a side view showing its appearance, and FIG. 3 is a plan view of the frame structure.

The frame of this two-wheeled motor vehicle includes a pair of left and right main tubes 2 that extend from a head pipe 1 at an angle rearward and downward, and left and right down tubes 3 that hang downward and extend rearward.
The left and right seat rails 5 are formed into an almost inverted trapezoid by the left and right center pillars 4 that connect these rear ends, and are connected to the rear end of the main tube 2 and extend rearward and upward, and the rear end of the main tube 2. The body tube 6 is connected to the seat rail 5 and supports the rear end of the seat rail 5.

An engine unit 7 is suspended within an inverted trapezoidal frame at the center. A front wheel 9 that is steered by a handle 8 is pivotally supported on the head pipe 1, and a rear wheel 11 is supported on the rear end of a swing arm 10 that is pivotally supported on the center pillar 4.

The rear wheel 11 is driven from a drive sprocket gear 13 fixed to the output shaft 12 of the engine unit 7 via a chain 14.

A storage box 15 is arranged from above the main tube 2 to above the front part of the seat rail 5, and a tandem-shaped seat 16 that also serves as a pillion seat is placed on the seat rail 5 behind it.

Due to the presence of the storage box 15, the fuel tank 17 is installed in a space surrounded by the seat rail 5 and the body tube 6 below the seat 16.

Both sides from the front of the engine unit 7 under the storage box 15 are covered with a cowling 18, and continuously below the lower edge of the seat 16 and both sides of the fuel tank 17 are covered with body covers 19.

Details of the storage box 15 are shown in FIGS. 4 and 5.

The main tube 2 is connected to the lower part of the head pipe 1, and extends from a position closer to the front of the center to the upper part of the head vibe 1.
An upper main tube 2a for reinforcement is provided. Both tubes 2.degree. 2a once expand from the head pipe 1 to both sides and then are led rearward, and narrowly converge from the center of the main tube 2 to the tip of the seat rail 5.

The above-mentioned convergence continues up to the front quarter of the seat rail 5 and the front end of the seat 16, and gradually expands from there toward the center, and the rear half of the seat rail 5 extends rearward in a substantially parallel manner.

The storage box 15 contains the reinforcing upper main tube 2.
a and the seat rail 6, the front end is round and the rear end is tapered when viewed from above, and has an almost egg-shaped outline, and when viewed from the side, the lower edge of the front half is the reinforcing upper main tube 2.
The rear wall 20 is parallel to the rear wall 20 and slopes rearward and downward along the direction a, so that the rear wall 20 has a substantially parallelogram shape.

This storage box 15 has a bottom (bottom plate 21), has a volume that can store a full-face helmet 22, and has an opening 23 on the top surface through which it can be taken in and taken out. A lid 25 whose front end can be opened and closed forward and upward by a hinge mechanism 24 is attached to the opening 23 . Further, the rear end side of the lid 25 is locked by a locking mechanism 26 in the closed position.

Then, the storage box 15 is fixed in the following manner. That is, a base plate 27 is placed across the narrowest portion of the left and right seat rails 5 as described above, and the lower surface of the rear end of the storage box 15 can swing rearward and upward on this base plate 27 via a hinge mechanism 28. A front plate 30, which is pivotally supported and protrudes forward and is attached to the lower surface of the front end via a cushion 29, is fastened to the front end of the upper main tube 2a with bolts 31.

As shown in FIG. 6, the hinge mechanism 28 has a bearing bracket 32 riveted to the lower surface of the rear end of the storage box bottom plate 21 to support a support shaft 33, and a pipe 34 mounted on the blade base plate 27.
Attachment brackets 35a and 35b welded to both ends of are attached by bolts 37 via cushions 36,
The support shaft 32 and the pipe 33 are aligned.

In addition, the front plate 30, as shown in FIG.
A semicircular notch 38 is formed on the front edge, and the surface is parallel to the upper surface of the upper main tube 2a, and when installed,
A notch 38 is set to surround the rear surface of the head pipe 1, close to the connection portion between the head pipe 1 and the upper main tube 2a. Therefore, the line of the weld bead 39 at the connection between the head pipe 1 and the upper main tube 2a is hidden.

In addition, there are side attachment brackets 40 that protrude downward from the lower sides of the central part of the storage box 15, and as shown in FIG. They are connected via a cushion 42 by a screw 41. The side mounting bracket 40 is connected to the base 43 on the left and right, and
3 is fixed along the lower surface of the bottom plate 21 with a rivet 45 together with a back metal 44 placed on the upper surface (see FIG. 4).

On the other hand, at the rear of the seat rail 5, as shown in FIG. 1, seat plates 46 and 47 extending from left to right are provided, on which the seat 16 is placed. In this case, as shown in FIG. 4, the front end portion 48 of the seat bottom plate is inclined forward and upward, and is set to overlap closely with the rear wall 20 of the storage box 15.

The seat 16 is fixed by a conventional mechanism in which an insertion bracket 49 protruding forward from the front end 48 of the seat bottom plate is inserted into an insertion hole in the base plate 27 from behind, and activates a seat lock 50 installed on the seat plate 46. be done. Therefore, in this fixed state, the front end portion 48 of the seat bottom plate prevents the storage box 15 from swinging. The seat lock 50 is unlocked by a key cylinder lock 51 (see FIG. 2) disposed at the lower edge of the body cover 19 and its key.

Release the seat lock 50, remove the seat 16, and remove the front plate 30. By removing the side attachment bracket 40, the storage box 15 can be swung rearward and upward by the hinge mechanism 28. The angle is close to 90 degrees or more, and most of the shape of the storage box 16 moves to the rear of the axis of the support shaft 33 of the hinge mechanism 28, and the fuel tank 17
Each relative position is set so that it can be stood upright on the top surface.

In this manner, by swinging the storage box 15 rearward and upward, the upper part of the engine unit 7 is opened, making it easier to maintain and inspect each part of the engine and its catch mold. For example, adjusting the carburetor 52, replacing the filter of the air cleaner 53,
Furthermore, maintenance work such as replenishing battery fluid in the battery 54 placed near this location becomes easier.

After the work is completed, the storage box 15 can be correctly positioned simply by folding it down, and the front plate 30 at the front end can be immediately fixed to the upper main tube 2a without the need for adjustment.
Installation work is also easy.

In addition, during maintenance work, the storage box 15 opened rearward and upward is stably erected on the seat rail 5, etc., so that the user can concentrate on the work without any further trouble.

Furthermore, the storage box 15 in normal operation is held in place by the locked seat 16 and cannot be swung even if the front plate 30 at the front end is removed, thus preventing theft such as disassembling the hinge mechanism 28 and taking it away. be done.

In addition, since the shape of the front plate 30 is set along the connection between the head pipe and the main tube,
This hides the weld bead at this connection and gives it a cleaner appearance.

At the front end of the bottom plate 21 of the storage box 15, a concave chamber 55 for four people is formed at a right angle. The battery 54 is
It is held in a battery holder 57 on a flat bridge tube 56 spanning the front end of the upper main tube 2a, and is housed in the recessed chamber 55 without interference.

Further, a triangular reinforcing plate 58 (see FIG. 3) is welded between the front end of the upper main tube 2a and the head pipe 1. A portion of the battery holder 57 is fastened to the upper surface of the reinforcing plate 58 with machine screws or ports 59.

Next, as shown in FIG. 9, the hinge mechanism 24 of the lid 25 is constructed by attaching a base plate 61 with bearings 60 erected on both sides to the front end of the bottom plate 21, that is, to the earthen wall of the recessed chamber 55. The support shaft 62 of the lid 25 is rotatably supported.

The support shaft 62 has a crank-shaped eccentric portion 63 formed thereon, and is fixed to the front ends of left and right swing levers 64 extending forward from the front end of the lid 25 . The eccentric part 63 of the support shaft 62 has
A plurality of coil springs 65 are provided between the base plate 61 and the base plate 61.
are loaded in parallel.

The relationship between the force of the coil spring 65 and the eccentric portion 63 is set so that it mainly acts in the direction of opening the lid 25, and in a range where the degree of opening is small, it reverses to the direction of closing beyond the consideration point.

In this way, the hinge mechanism 24 is compactly assembled,
Moreover, it effectively acts on the opening/closing operation of the lid 25. Since it is small, it does not occupy the effective volume of the storage box 15.

On the other hand, the locking mechanism 26 of the lid 25 is attached to the base plate 66 along the inner surface of the rear wall 20 of the storage box 15, as shown in FIG.

Bearings 67 are protruded from the upper left and right sides of the base plate 66, and a striker shaft 68 is rotatably supported. Striker shaft 68
There are left and right strikers 69a at both ends.

69b is fixed, the lever 70 is fixed, and a spring 71 is suspended between it and the base plate 66, so that the strikers 69a and 69b are always biased in the release direction.

A pair of left and right hooks 72a, 7 are provided at the rear end of the lid 25.
2b is provided in a protruding manner, and when the lid 25 is placed over the opening 23 of the storage box 15, the tip engages with the radial groove 73 and the striker 69a.

Rotate 69b in the locking direction.

One striker 69a has a cam face with a stepped portion 74 on its outer periphery, and a locking lever 75 is elastically contacted by a spring 76 on the outer periphery.

As described above, when the strikers 69a, 69b rotate in the locking direction, the locking lever 75 locks the strikers 69a, 69b.
The hooks 72a and 72b are engaged with the stepped portion 74 of the hook 9b and are prevented from reversing in the release direction, so that the hooks 72a and 72b cannot escape. That is, the lock mechanism 26 is activated.

The locking lever 75 is linked to a movable magnetic core 78 of a solenoid device 77. When the solenoid device 77 is energized, the movable magnetic core 78 resists the spring 76 and moves the locking lever 7.
5, the strikers 69a and 69b are released and the locking mechanism 26 is released.

The energization switch for the solenoid device 77 is linked to the engine switch 79, as shown in FIG. The engine is locked by the cylinder lock 80 with the key of the engine switch 79.
It becomes ready for operation at the rotation angle α. When the cylinder lock is rotated further into the β angle position, the solenoid device 77 is energized. Even at the β angle position, the engine can be operated within the range.

The spring automatically returns from the β angle position to the α position. Thereby, the lid 25 can be opened regardless of whether the engine is running or not.

A through hole 81 is provided in the rear wall 20 behind the solenoid device 77 in case the solenoid device 77 does not operate due to a malfunction in the electrical system. By inserting a screwdriver or the like through this through hole 81 and pushing down the movable magnetic core 78, the locking mechanism 2
As described above, the manual release through hole 81 has its outer surface covered by the front end of the seat 16 which has been tightened. Therefore, the seat lock 45 can be released outside of consideration.
Manual release cannot be done without permission.

In this way, the locking mechanism 26 of the lid 25 is constructed compactly, and like the hinge mechanism 24, it can be housed in the storage box 15 in a space-saving manner. Since a pair of left and right hooks 72a and 72b are arranged together with strikers 69a and 69b,
The attachment posture of the lid 25 does not easily collapse. The lid 25 can be made thinner. Moreover, since it is installed along the rear wall 20 of the storage box 15, a safe manual release device can be provided.

The storage box 15 is shown in FIGS. 5 and 6.

As shown by the joining line 82 in FIG. 10, it is formed by welding the halves that have been molded by being divided into left and right parts.

This improves productivity compared to integral molding. Moreover, as described above, the storage box 15 has a hinge mechanism 28.
bearing bracket 32. Front plate 30. Base plate 43 of side mounting bracket 40. Base plate 61 of the hinge mechanism 24. Since the base plate 66 of the locking mechanism 26 is fixed across both halves, the connection is extremely strong.

Therefore, the thickness can be reduced, and the rigidity and strength of welding can be low.

Furthermore, the lid 25 is provided with a deformation prevention device, as shown in FIGS. 11 and 12.

The lid 25 is attached so that the inner surface of its peripheral edge is in contact with the seal 83 attached to the opening 23 of the storage box 15 from the outside.

On both sides of the inner surface of the lid 25, a tongue piece 84 integrally extended from the material of the lid 25 hangs away from the inner surface, and a tube that hangs downward away from the inner surface from a pipe 85 fixed to the inner circumferential surface. A reinforcing bone 86 made of

These tongue pieces 84 and reinforcing bones 86 are invited inside the seal 83 when the lid 25 is covered. As a result, the periphery of the opening 23 is sandwiched from the inside and outside,
Deformation is prevented. This is particularly effective against theft in which the both sides of the periphery of the lid 25 are forcibly stretched open to take out stored items.

The fuel tank 17 is connected to the seat 16 as shown in FIG.
Since it is disposed inside the lower body cover 19, it is elongated along the seat rail 5 and has a high slope at the rear. The rear end extends to below the tail cover 88, and an injection port 87 is arranged on the upper surface. Fuel can be injected into this injection port 87 by opening an opening/closing lid 89 provided on a tail cover 88.

The fuel tank 17 is completed by molding into upper and lower half tanks 17a and 17b and combining them together, as shown in FIGS. 14 to 16. A flange 90 is formed on the mating surfaces and seam welded. The seat rail 5 is thin at the front of the 4 halves (because it converges, the upper half of the tank 17
A is formed into a tapered shape and positioned within the seat rail 5, and the flange 90 portion is widened by the tapered width and abuts against the lower surface of the seat rail 5. The width of the front part of the lower half tank 17b is not narrowed. In other words, it is formed into a nearly rectangular shape when viewed from above, and this part accounts for most of the tank capacity.

As shown in FIG. 1, the fuel cock 91 is attached to the lower bottom of the front end of the fuel tank 17, which is the closest position, on the right side as viewed from the rider on the seat 16. This is to avoid interference with the chain 14 as it is located at a low position near the line.

The fuel pump 92 is installed vertically on the left side of the seat rail 5. At the same time, this left side is protected by the covering of the body cover 19, and since this left side is on the same side as the side stand 93, in this case, it is mainly the right side that the vehicle falls during parking, so the fuel pump 92 is relatively precise and effective.
This prevents the vehicle from being damaged or destroyed by impact caused by the weight of the vehicle.

A brake oil reservoir tank (not shown) is provided opposite to the seat rail 5 on the opposite side from the fuel pump 92.

Note that a heat insulating plate 95 is provided on the lower surface of the bottom plate 21 of the storage box 15.
is coated. Since it is located directly above the engine unit 7, it mainly blocks radiant heat from the engine unit 7 and prevents heat damage to stored items. By further pasting a glossy film 96 such as aluminum foil on the lower surface of the heat insulating board 95, the heat shielding effect is doubled.

〔Effect of the invention〕

As described above, the motorcycle storage box attachment device according to the present invention has an engine unibody mounted below the main tube extending rearward from the head pipe, and mounted on the seat rail extending further rearward from the rear end of the main tube. In a motorcycle on which a seat is mounted, a storage box with a lid that can be opened and closed is placed above the main tube and the front of the seat rail, and the lower rear end of the storage box is connected to the rear by a hinge mechanism. It is pivotally supported by the seat rail so as to be able to swing upwards, and a front plate that protrudes forward and has a semicircular notch formed on the front edge is fixed to the lower front end, and this front plate connects with the head pipe. On the upper surface of the front end of the main tube near the connection part,
The semicircular cutout above surrounds the rear surface of the head pipe, making it easier to attach and detach the storage box installed in the upper center of the vehicle, and at the same time improves visibility by adapting to the surrounding shape. There is an effect that can be used.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view of a motorcycle equipped with a storage box fixing device according to an embodiment of the present invention, FIG. 2 is a side view of the motorcycle shown in FIG. 1, and FIG. 3 is a side view of the motorcycle shown in FIG. 1. FIG. 4 is an enlarged vertical sectional side view of the storage box device shown in FIG. 1; FIG. 5 is a plan view of a portion of the storage box with the lid removed; Figure 6 is Figure 4A
-A is an enlarged sectional view taken in the direction of the A arrow, FIG. 7 is an enlarged sectional view taken in the B-B arrow direction in FIG. FIG. 10 is an enlarged front view as seen from arrow E in FIG. 4, FIG. 11 is a bottom view of the main part of the lid in FIG. 4, and FIG. 12 is an enlarged view of F in FIG. 11. 13 is an explanatory diagram of the engine switch, 14th
The figure is an enlarged side view of the fuel tank in Fig. 1, Fig. 15 is an enlarged plan view of the fuel tank in Fig. 1, and Fig. 16 is an enlarged side view of the fuel tank in Fig. 1.
FIG. 4 is a sectional view taken along line GG. 1...Head pipe, 2...Main tube, 2a
...Upper main tube, 5...Seat rail, 7...Engine unit, 15...Storage box, 16...Seat, 17...Fuel tank, 18...
- Cowling, 22... Helmet, 25... Lid, 28... Hinge mechanism, 30... Front plate, 38... Notch, 39... Welding bead, 40
...Side mounting bracket, 43...Base plate, 4
4... Back metal, 46, 47... Seat plate, 48...
・Front end of seat bottom plate, 50...Seat lock, 54・
... Battery, 55 ... Concave chamber, 56 ... Bridge tube, 57 ... Battery holder, 58 ... Reinforcement plate, 61 ... Base plate, 63 ... Eccentric part, 65 ...
Coil spring, 66... Base plate, 68... Striker shaft, 69a, 69b... Striker, 72a
, 72b... hook, 73... groove, 73... step, 75... locking lever, 77... solenoid device,
78...Movable magnetic core, 79...Engine switch, 8
DESCRIPTION OF SYMBOLS 1... Through hole, 82... Engagement line, 84... Tongue piece, 85... Reinforcement bone, 87... Inlet, 88...
Tail cover, 89... Opening/closing lid, 90... Flange, 91... Fuel cock, 92... Fuel pump,
93...Side stand, 95...Insulation board, 96.
··film.

Claims (1)

[Claims] In a motorcycle in which an engine unit is mounted below a main tube extending rearward from a head pipe, and a seat is placed on a seat rail extending further rearward from the rear end of the main tube, from the main tube to the front of the seat rail. A storage box with a lid that can be opened and closed is arranged above, and the rear lower end of the storage box is pivotally supported on the seat rail by a hinge mechanism so that it can swing rearward and upward, and the front lower end protrudes forward. A front plate with a semicircular cutout formed on the front edge is fixed to the top surface of the front end of the main tube near the connection with the head pipe, and the rear surface of the head pipe is fixed to the top surface of the front end of the main tube near the connection part with the head pipe. A storage box attachment device for a motorcycle, characterized in that the storage box is attached in a surrounding manner.