JPH0460874B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibration isolation structure in a box-shaped side bag that is attached to the rear side of a motorcycle, that is, to the side of the rear wheel and rear fender portion via a stay.

As shown in Japanese Utility Model Publication No. 57-28708, a stay is provided on the side of the rear wheel of a motorcycle in the longitudinal direction from the vehicle body side such as the body frame, and a box-shaped side bag is attached via the stay. . That is, conventionally, the bag was attached to the stay by engaging the lower member of the stay with a leg fixed to the lower part of the bag, and interposing the lock provided at the upper part of the bag from the upper member.

However, it is desirable to effectively and reliably absorb vibrations of the bag relative to the stay, such as rattling of the bag due to vibrations of the vehicle body.

The present invention has been made in response to the above-mentioned needs, and its object is to provide an elastic material having flexible elastic properties that abuts the upper stay from the side and from at least one of the above and below. A member is provided on the upper part of the side bag, and the side bag is attached to the upper stay with the elastic member interposed, and a hook is provided on the lower part of the side bag, and the hook and the lower stay engage with each other to attach the side bag to the upper stay. By locking the body, it is possible to effectively and reliably absorb both the relative vibrations in the width direction and the vertical direction of the car body, such as when the bag rattles against the stay due to car body vibration. To provide a side bag vibration isolation structure with high vibration isolation effect.

Furthermore, an object of the present invention is to form an uneven portion, that is, a wave-shaped portion consisting of alternately continuous peaks and valleys, on the contact surface of the elastic member with the stay, and to form a wave-shaped portion in which the wave-shaped portion is made up of alternating continuations of peaks and valleys. Due to its softer flexibility, it is possible to provide an appropriate amount of flexibility stroke necessary to press and bias the bag when it is attached to the stay, and the side bag can absorb vibrations such as initial rattling even more softly. It provides an anti-vibration structure.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a side view of the motorcycle, and FIG. 2 is an enlarged side view of the rear part thereof.

A two-person seat 3 is placed on the upper body of the motorcycle 1, extending from the front fuel tank 2 to the middle or rear part. A rear cowl 6 is provided to cover the vehicle from the sides to the rear, and a step for the rear passenger of the seat 3, ie, a pillion step 8, is attached via a triangular bracket 7 to the lower central portion of the vehicle body frame. The front part of the bracket 7 is connected to the vehicle body frame, and the rear part of the bracket 7 supports the pillion step 8 and a side bag stay 10, which will be described later, which are commonly connected with bolts.

The side bag stay 10 is supported by the bracket 7 at its tip, is made of a pipe that continues at the rear so as to straddle the rear upper part of the rear wheel 4, and forms a planar U-shape.
Above the horizontal rod part 11 extending back and forth on the side of the frame, there is a short horizontal rod part 12 approximately parallel to the vertical rod part 13,1.
4, and an upper horizontal rod portion 12, which is a short horizontal rod portion, is connected to the vehicle body side as described later.

Box-shaped side bags 15, 15 made of hard synthetic resin are installed on both sides of the rear part of the vehicle via the stay 10.
is attached removably.

As in the conventional case, the side bag 15 is engaged with the lower horizontal rod part 11 of the stay 10 by hooking a hook (not shown) fixed at the lower part of the bag 15 from above, and the upper horizontal rod part 12 has the following hooks. A bag 15 having an anti-vibration structure as described above is removably attached to the stay 10 by a locking mechanism to be described later.

As shown in FIG. 3 (cross-sectional view taken along the line 3-3 in FIG. 2), a vibration-proof rubber 20 according to the present invention is provided by a grommet on the upper part of the mounting surface of the side bag 15 on the vehicle body side. It has a substantially L-shaped cross section so as to come into contact with the upper horizontal rod portion 12 of the bag stay 10 from the sides and below. That is, the rubber 20, which has a substantially L-shaped cross section, has an upright wall portion 22 that sufficiently wraps the abutment surface 21 with the stay 10 on the upper transverse rod portion 12 from the side, and a protrusion that sufficiently wraps from below. Since it is composed of a piece-like lower wall part 23,
If the bug 15 is attached to the stay 10 by pressing it as shown by arrow P with the rubber 20 interposed, it will not only prevent the bug 15 from rattling in the width direction of the vehicle body against the stay 10 due to vehicle body vibration, but also prevent vertical vibration. The flexible and elastic properties of the rubber 20 also prevent vibration in the upright wall portion 22 and lower wall portion 23.
It will be absorbed and buffered respectively. Especially the third
As shown in the figure, since the rubber 20 has a protruding lower wall portion 23, the hook protruding from the lower part of the bag 15 can be brought into pressure contact with the lower horizontal rod portion 11 of the stay 10 from above due to its flexible elasticity. Therefore, vibration of the bag 15 relative to the stay 10 can be effectively and reliably absorbed.

In addition, as shown in FIG. 4 (cross-sectional view taken along the line 4-4 in FIG. 2), there is a vibration-proof structure with a substantially L-shaped cross section similar to that described above between the upper front part of the side bag 15 and the side grip 8 provided at the lower edge of the rear cowl 6. Even if the rubber 24 is provided in the bag so that the rubber 24 is interposed, a high vibration-proofing effect can be similarly achieved.

Furthermore, as shown in FIGS. 5 and 6, uneven portions, that is, peaks 28 and troughs 29, are formed on the contact surface 26 of the vibration-proof rubber 25, which has a substantially L-shaped cross section similar to the above, and which contacts the stay 10 and the side grip 8. By forming the wave-shaped portions 27 that are alternately continuous, advantages in mounting the bag 15 to the stay 10 and a further vibration-proofing effect can be exhibited. That is, since the ridges 28 and troughs 29 of the wave-shaped portion 27 are formed continuously in the length direction of the stay 10, the softer flexibility of the wave-shaped portion 27 allows the bag 15 to be pressed to the stay 10 in the attached state. The rubber 25 can be provided with an appropriate amount of flexibility stroke necessary for the movement, and vibrations such as initial rattling can be absorbed more softly.

Furthermore, as shown in FIG.
has a substantially inverted U-shaped cross section, and the contact surface 3 with the stay 10
1 is formed in a U-groove shape, it goes without saying that vibrations of the bag 15 relative to the stay 10 in the width direction and vertical direction of the vehicle body can be absorbed. In the figure, 16 is a hook.

In the above embodiments, rubber is used as the vibration isolating member, but the present invention is not limited to this only, and any elastic member having flexible elastic properties may be used.

By the way, the locking mechanism for detachably attaching the side bag 15 to the stay 10 is as shown in FIGS. 8 and 9. FIG. 8 is a perspective view of the cylinder lock 40 provided on the stay 10 as seen diagonally from the side, and FIG. 9 is a perspective view of the lock receiving portion 50 provided in the bag 15 as seen diagonally from above.

The cylinder lock 40 protrudes from the upper transverse rod portion 12 of the stay 10 onto a bracket 41 fixed outwardly, and carries and inserts a long round bar-shaped rod 43 into the cylinder 42 in the front-rear direction. In this case, a guide piece 44 is provided at the front intermediate portion to support and pass through the front part of the rod 43, and a key 4 is provided coaxially with the rod 43 at the rear of the cylinder 42.
5 can be inserted.

The lock receiving part 50 is protruded from the upper part of the mounting surface of the bag 15 on the vehicle body side, and has an engaging part 52 inside the case 51 near the front. It is set up.

When attaching the bag 15 to the stay 10, the engaging part 52 is engaged with the middle part of the rod 43,
The front part of the rod 43 is supported by the receiver 53, and the key 45 inserted into the cylinder 42 is turned to lock it. Thereby, the bag 15 can be reliably attached to the stay 10 while being kept in a locked state, and it is easy to attach and detach it by simply operating a pair of locking mechanisms.

As described above, the stay 10 to which the side bag 15 is attached is composed of a divided body as shown in FIGS. 10 to 12.

The front ends of the lower horizontal rod portions 11, 11 of the side bag stay 10 having a U-shape in plan form mounting boss portions 61, 61 formed in a flat plate shape.
Reference numeral 61 denotes the triangular pillion step brackets 7, 7 provided on the left and right sides of the body of the motorcycle 1.
The pillion steps 8 and 8 are commonly connected to the rear part of the body with bolts. From the lower horizontal rod part 11 to the vertical rod part 1
Two plate-shaped mounting pieces 62 and 63 are fixed to the short upper horizontal rod part 12 which is disposed above this 11 and substantially parallel to each other via 3 and 14. The provided front attachment piece 62 is attached to the vehicle body such as the body frame from below, and the rear attachment piece 63 provided upward is similarly attached from the side with bolts.

Such a stay 10 is connected to the front vertical rod portions 13, 13 of the lower horizontal rod portions 11, 11 and the rear vertical rod portions 14, 1.
4 and the upper half 10a and lower half 1, respectively.
0b. This divided portion is enlarged and shown in FIG. That is, a protrusion 64 having a semicircular cross section is provided at both ends of the rod constituting the divided portion.
65 are provided protrudingly, one protrusion 64 is provided with a circular recess 64a and an insertion hole 64b, and the other protrusion 65 is provided with a circular recess 64a and an insertion hole 64b.
is provided with a female threaded portion 65a, and a bolt 66 is passed through the insertion hole 64b of one of the protrusions 64 and screwed into the female threaded portion 65a of the other protrusion 65. After screwing, the bolt 66 has its circular head 66a inserted into the circular recess 6.
It will be buried in 4a. Note that a hexagonal wrench hole 66b is formed in the circular head 66a of the bolt 66, and the bolt 66 is screwed with a wrench such as a hexagonal wrench.

As described above, the stay 10 can be divided into the upper and lower parts with the four bolts 66. Therefore, when the rear wheel 4 located inside the U-shape of the stay 10 is attached and detached for tire replacement, etc., the vehicle body can be separated as described above. There is no need to take the trouble to remove the stay 10 itself, which is attached using 6 fasteners (3 on each side, 3 on the left and right), and the lower half can be removed by simply removing the 4 bolts 66. 10b can be removed. This allows the rear wheel 4 to be easily attached and detached.

Next, the relationship between the reflectors provided on both sides of the motorcycle body, the side bags 15, and the stay 10 will be described.

It is prescribed that reflectors are provided on both sides of the vehicle body of a motorcycle, and a reflector 70 is attached directly to the rear part of the rear cowl 6 as shown in FIG. Also, when installing side bags,
As shown in the figure, a reflector 71 is directly attached to the bag 15 at a suitable location.

By the way, considering the case where a rear passenger sits on the seat of a motorcycle, it is desirable to provide the side bags at the rear of the vehicle body in consideration of interference with the legs, and therefore the same applies to the side bag stays. Furthermore, if it is intended to increase the size of the side bag, the stay will naturally also increase in size, and the rear upper part 80a of the stay 80 similar to that described above may end up wrapping around the reflector 70 of the rear cowl 6, as shown in FIG. If the side bag is removed from the stay 80 in this state, the reflector 7 will appear as shown in the figure.
This is not preferable because the visible part of 0 has a small area.

Therefore, a large reflector 72 that is very easy to see is hung and fixed to the upper horizontal rod part 82 of the stay 80.
This reflector 72 has a large circular shape and is integrally attached to the stay 80, so even if the stay 80 wraps around the reflector 70 of the rear cowl 6, the large circular reflector 72 can exert a sufficient reflex function. Can be done.

Therefore, if the large circular reflector 72 is provided on the stay 80 as described above, it will contribute to improving its reflex function, and the side bags and side bag stays can be placed at any ideal position where they will not interfere with the rear passengers. can.

Although various configurations have been described above based on the embodiments, the greatest feature of the present invention lies in the vibration isolation structure of the side bag.

As is clear from the above, in the vibration isolation structure according to the present invention, an elastic member having flexible elastic properties is provided in the upper part of the side bag so as to contact the upper stay from the side and from at least one of the above and below. The side bag is attached to the upper stay with the elastic member interposed therebetween, and a hook is provided at the lower part of the side bag, and the hook and the lower stay engage to lock the lower part of the side bag. Furthermore, the bag, which rotates around the lower stay, is mounted with the elastic member guiding the upper stay. Further, an uneven portion, that is, a wave-shaped portion in which peaks and valleys are alternately continued, is formed on the contact surface of the elastic member with the upper stay, and the softer flexibility of the wave-shaped portion It is possible to provide an appropriate amount of flexible stroke necessary to press and bias the attached bag against the stay. Therefore, it effectively suppresses vibrations in both the width direction and the vertical direction of the vehicle body, such as rattling of the bag due to vehicle body vibration.
It has many advantages, such as being able to absorb it reliably and also being able to reliably set the side bag when attaching it.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of a motorcycle, Fig. 2 is a side view showing an enlarged rear part of the motorcycle, and Fig. 3 is a cross section taken along line 3-3 in Fig. 2. Figure 4 is a sectional view taken along the line 4-4, Figure 5 is a perspective view showing a modified example of the elastic member, Figure 6 is a sectional view thereof, and Figure 7 is a further modified example of the elastic member. Figures 8 and 9 show the lock mechanism, with Figure 8 being a perspective view of the cylinder lock installed on the stay, and Figure 9 showing the lock installed on the bag. The perspective views of the receiving part, FIGS. 10 to 12, show the divided state of the stay.
0 is a perspective view of the stay, FIG. 11 is an exploded perspective view thereof, FIG. 12 is an enlarged perspective view of a divided portion, and FIG. 13 is a schematic rear side view of the motorcycle showing a reflector. In addition, 1 in the drawing is a motorcycle, 10 is a stay, 15
20, 24, 25, 30 are elastic members, 27 is a wave-shaped portion, 28 is a peak portion, and 29 is a trough portion.

Claims (1)

[Scope of Claims] 1. A box-shaped side bag that is attached to the rear side of a motorcycle via upper and lower stays, which abuts the upper stay from the side and at least from above or below. An elastic member having flexible elastic properties that abuts from one side is provided on the upper part of the side bag, the side bag is attached to the upper stay with the elastic member interposed, and a hook is provided on the lower part of the side bag,
A vibration isolation structure for a side bag, characterized in that the hook and the lower stay engage with each other to lock a lower part of the side bag. 2. The vibration isolation structure for a side bag according to claim 1, wherein the contact surface of the elastic member with the stay has a wavy shape in which peaks and troughs are alternately continuous.