JPS62299485A - Fixture for rear carrier in minicar - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed description of the invention 3. Detailed description of the invention This invention relates to a mounting device for a rear carrier installed in a vehicle.

Conventionally, it has been known to improve riding comfort in motorcycles by using the vibration system of bags loaded with luggage. '1-10167 (in issue 1,
The outer periphery, including the bottom, of bags for loading cargo is attached to the vehicle body using at least three supporting means, and at least one of the supports 0 is constituted by an elastic piece such as a spring to prevent the bags from swinging. The remaining supporting means is constituted by a shock absorber having a restoring action by a spring, so that the above-mentioned 1) movement is attenuated and an elastic restoring action is provided 1q. It is shown.

1 is going to be 1+1 However, with this bag attachment device, a special subframe must be attached to the vehicle body frame, and the bag support plate must be attached to this subframe via springs and shock absorbers. There are problems in that the structure becomes complicated and the number of parts increases.

Therefore, in the present invention, the rear carrier V can be attached to the vehicle body using a simple mounting device with a small number of parts, and furthermore, by the action of the loaded A7 carrier, it is possible to avoid attenuating the sway and vibration of the vehicle body caused by external disturbances. This is what we are trying to do.

For this reason, in the present invention, the rear carrier is attached to the vehicle body so as to be rotatable in the horizontal direction about a point at the front of the rear carrier.
Resistance applying means for generating a force resisting the rotation is provided between the rear part of the rear carrier and the vehicle body.

According to the present invention, when a vehicle is traveling with luggage loaded on the rear and is subjected to some disturbance and the vehicle body vibrates from side to side, the rear vibrates along with the luggage at the same time. is able to rotate relative to the vehicle body around a point in its front part, and this rotation is subject to a resistance force by the resistance applying means, so there is a difference in position H1 between the vibration absorber of the vehicle body and the vibration of the carrier baggage system. As a result, the vibration energy of the vehicle body is absorbed, and the mid-rest vibration after the disturbance is attenuated and converged.

Support L top 1 to 4 show one embodiment of the present invention.

FIG. 1 is a schematic side view showing the rear part of a scooter-type motorcycle, and numeral 1 indicates a body frame. This body frame 1
is arranged along the center line of the body, rises rearward from a low floor portion in front of the seat 2, and extends rearward above the rear wheel 3. The rear wheel 3 is pivotally supported to the front part of the vehicle body frame 1 via a swing unit 4 so as to be able to swing up and down, and is connected to the rear part of the vehicle body frame 1 via a bush F3 unit 5. The seat 2 is also fixed to the rear portion of the vehicle body frame 1, and a luggage loading V-carriage V6 is further attached to the rear of the seat 2.

The A7 carrier 6 is rotatably attached to the vehicle body frame 1 via a bolt 7 at its front end central portion 6a. That is, a bolt insertion hole 8 is formed in the front end central portion 6a of the rear carrier V6, and washers p 10a are provided on both the upper and lower surfaces of this portion.

10b, insert the bolt 7 that passes through the vehicle body frame 1 into the bolt insertion hole 8, and screw together the nut 9, thereby attaching the front end central portion 6a to the washers 1710a, 10.
It is attached to the vehicle body frame 1 by sandwiching it between Washers 10a and 10b are wear resistant and relatively durable! ? Since it is made of a material such as iron or resin that has a small coefficient of friction, and the tightening force of the nut 9 is adjusted appropriately, the rear carrier 6 can be moved left and right around the pole door as shown by arrow a in Figure 2. It can be rotated.

A horizontal member 12 is provided in the middle part of the rear carrier 6 in the longitudinal direction to connect the longitudinal members 11a and 11b on both the left and right sides. Two arc-shaped elongated holes 13.1
3 is drilled. These elongated holes 13.degree. 13 are each formed in an arc shape centered on the bolt 7.

On the other hand, a box-shaped dowel 1/j stay 14 is protruded from the upper surface of the vehicle body frame 1, and an upper wall portion 15 of the dowel 1/j stay 14 extends parallel to the horizontal member 12. . A bolt 16 passes through this upper wall portion 15 from the bottom to the top.
However, a washer 17t similar to the washer v 10b),
It extends upwardly through the elongated hole 13 and the washer 17a (similar to the washer 10a described in 1), and a nut 18 is fastened to the threaded portion at the tip of the washer 17a. 17b with an appropriate pressure contact force, and when the rear carrier~76 tries to rotate around the bolt 7 at the center of the front end, it is held relative to the bolt 1G within the range allowed by the elongated hole 13. By moving the rear gear 6, the rotation of the rear gear 6 is allowed.However, at this time, the washer p
17a.

The rotation of the rear carrier 6 is resisted by the frictional force generated between the rear carrier 17b and the horizontal member 12. The bolts 16 are preferably fixed to the vehicle body frame 1 by, for example, welding.

Since the present embodiment is configured in this way, if some disturbance is applied to the vehicle body while the vehicle is running with luggage loaded on the rear kit rear 6, and the vehicle body, that is, the vehicle body frame 1 swings or vibrates from side to side, the ψ The rear carrier 6 swings and moves relative to the vehicle body frame 1 around the bolt 7 together with the luggage on it, but the rear carrier 6 swings and moves between the washers 17a, 17b and the horizontal member 12. Since it receives resistance due to the applied frictional force, the vibration of the vehicle body frame 1,
A phase difference occurs between the vibration and the shaking and vibration of the rear carrier 6 and the luggage, and the frictional force moves in a direction to attenuate the shaking and movement of the vehicle body frame 1. Therefore, the shaking and vibration of the vehicle body after the disturbance is attenuated and converged.

In addition, since the rear carrier 6 is resisted by the frictional force and does not swing or vibrate freely, the end of the elongated hole 13 may impact against the bolt 16, causing an impact noise or causing damage to the cargo. It will not cause any shock to you. In the normal state f3 where no disturbance acts on the vehicle body, the rear carrier 6 is fixed to the vehicle body frame 1 by frictional force and does not move.

FIG. 5 shows another embodiment of the invention. In this embodiment, arc-shaped elongated holes 19.20 are provided on both left and right sides of the front end of the rear carrier 6, and the front end is connected to the ports 1-21. It is attached to the vehicle body frame 1 by 22. Its detailed structure is the horizontal member 12 with the elongated hole 13 and the bolt 1G in the above embodiment.
23 is the washer 17.
24 is a nut similar to the nut 1-18. The elongated holes 19 and 20 are formed in an arc shape centered on the point P. The horizontal member 12 provided at the rear of the rear carrier 6 has one elongated hole 25 in the center, and the port h16. It is mechanically attached to the vehicle body frame 1 via a washer 27 and a nut 28. The elongated hole 25 is also formed in an arc shape centered on the point P. Therefore, the rear carrier 6 can rotate left and right about the point P, and this rotational movement is resisted by the frictional force between the carrier carrier 176 and each washer 23, 23, 27.

6 to 8 show still other embodiments of the present invention. In this embodiment, a boss portion 29 formed at the center of the front end of the V-kit rear 6 is pivotally fitted onto a pivot shaft 30 protruding from the vehicle body frame 1.

Longitudinal members 11a and 11b on both left and right sides of the rear carrier 6
, each has a mounting arm 31 protruding inwardly at the intermediate portion thereof.
a, 31b are provided, and these mounting arms 31a,
31b are fitted into both left and right ends of the buffer box 32 fixed to the vehicle body frame 1, respectively. The buffer box 32 is the seventh
As shown in the figure, the upper half 3 is divided into a lower half 32a and a lower half 32b, and a groove 33 provided on the outer surface of the lower half 32a
Both are integrally attached by fitting a protrusion 34 provided on the inner surface of 2b. Lower half 32
Attachment pieces 35° 35 are integrally provided on both the front and rear sides of a, and the lower half portion 32a is bolted to the vehicle body frame 1 via the attachment pieces 35. A partition plate 36 is integrally fixed at the center position inside the lower half part 32a, and
The interior of the buffer box 32 formed by the upper half 32b and the upper half 32b is divided into two chambers, right and left, by a partition plate 36. Then, with J3 in each room, a spring 37 and a damper 38 are placed in parallel between the ends of the J arms 31a and 31b and the partition plate 36, which are inserted into the buffer box 32.
is installed.

This J: The rear carrier 6 is the front pivot 1FIl1.
It is attached to the vehicle body frame 1 in such a manner that it can rotate in left and right directions (in the direction of the arrows) about 30, but cannot move up and down. And the left and right rotation is done by the FA impact mechanism 3.
resisted by 9. Therefore, in this embodiment as well, when the vehicle body vibrates in the left-right direction due to disturbance, a phase difference occurs between the vibration of the vehicle body and the vibration of the luggage system.
Vehicle body vibrations are rapidly damped. In this embodiment, the spring 3 is placed between the partition plate 36 inside the game box 32 and the mounting arm 31.
However, instead of such a buffer mechanism 39, an elastic member such as rubber may be simply provided.

9-11 show another embodiment of the invention. In this embodiment, the rear carrier 6 is attached to the vehicle body frame 1 via a front bracket 40 and a rear bracket 41 that are provided upright on the upper surface of the vehicle body frame 1. In the center of the earthen wall of front brackets 1 to 40,
Poles 1 to 42 protrude upward from the upper wall and are rotatable and movable up and down relative to the earthen wall, a coil spring 43 is loosely inserted into the pole 1 at 42, and a coil spring 43 is fitted onto the bolt 42. A mounting member 45 consisting of a mounting piece 44 placed on the upper end surface of the coil spring 43 is provided. A mounting piece 46 is fixed to the center of the front end of the V carrier 6, and by passing the bolt 42 through the hole 47 of the mounting piece 46, bringing both mounting pieces 44.4G into contact with each other, and tightening with the nut 48. , the rear carrier 6 is attached to the vehicle body frame 1 so as to be rotatable from side to side about the central portion of its front end. This rear carrier 6 is also supported in a floating state via a coil spring 43 in the vertical direction, and the cargo is placed on the rear carrier 76.
11, it sinks downward depending on the weight of the load.

A mounting piece 49 is fixed to the rear part of the rear carrier 6 and extends between the left and right sides of the rear carrier 6.
A stay 52 is fixed to 9 via a bolt 50 and a nut 51. This stay 52 is the left and right stay member 5.
3.53, each step member 53 enters into the inside of the rear bracket 41 through an elongated hole 54 provided in the upper wall 41a of the box-shaped rear bracket 41.

As shown in FIG. 10, the lower end of the stay member 53 is curved outward at a substantially right angle, and its tip passes through an elongated hole 55 provided in the side wall 41b of the rear bracket 41 and is inserted into the rear bracket 41. Extends laterally and externally. A stopper 57 with a rubber 56 attached to the end is provided. A coil spring 58 is fitted into a portion of the stem member 53 inside the rear bracket 41. The upper end of the coil spring 58 is received by the lower surface of the upper wall 41a of the rear bracket 41, and the lower end is attached to the stem member 53. Fixed collar piece 5
It is accepted by 9. In addition, an engagement notch 60 is provided on the upper surface of the portion of the stem member 53 that passes through the long hole 55.
is provided, and when the rear carrier 6 is in the upper position, that is, when no cargo is loaded on the V-carrier 6, the engagement notch 60 is located above the elongated hole 55, as shown in FIG. It engages with the edge 55a to prevent the rear carrier 6 from rotating left and right.

When cargo is loaded onto the rear carrier 6, it will look like @mentioned V
As the Kireliya 6 sinks, the upper edge 55a of the elongated hole 55 and the engagement notch 60 are disengaged, as shown in FIG.
The rear carrier 6 can be rotated left and right around the center of its front end. However, since this rotational movement is resisted by the coil spring 58, as in each of the above embodiments,
It is possible to effectively attenuate vibrations of the vehicle body caused by external disturbances. This embodiment is designed to prevent automatic body vibrations, such as shimmy, that are likely to occur while driving with luggage loaded on the rear carrier 6.
It is particularly suitable for reducing vibration by the dynamic damper effect of the vibration system consisting of the rear 6 and luggage.

The rear carrier 6 sinks depending on the weight of the cargo loaded thereon, and the coil spring 58 expands as the rear carrier it 6 sinks. Therefore, the elastic constant of the vibration system consisting of the rear carrier 6 and the cargo decreases in accordance with the weight of the cargo, and the natural frequency of the vibration system decreases. This has the same tendency as the frequency change of shimmy due to changes in the body size, so a self-effective shimmy reduction effect is obtained and ride comfort is improved. When the rear carrier 6 is not loaded with cargo, the rear carrier 6 is fixed to the vehicle body frame 1 by the engagement between the upper edge 55a of the elongated hole 55 and the engagement notch 60 as described above, and the empty carrier does not get upset while driving.

1. As mentioned above, in the present invention, it is assumed that the Relexi V is horizontally rotatable around a point on its surface, and that the rear part of the Hiki 7 and the rear of the Cary 7 are connected to each other. Since a resistance imparting means that generates a force to resist the rotation is provided between the vehicle body and the vehicle body, when a disturbance is applied to the vehicle body while driving, the vibration of the IE body is reduced and the vibration of the V-carry 17-baggage system is combined with the vibration of the vehicle body. A phase difference occurs between them, and as a result, the vehicle system Oj after the disturbance is attenuated and converged. Moreover, this effect is extremely l! ! A simple construction of the carrier mounting device is obtained.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing the rear part of a scooter-type motorcycle according to an embodiment of the present invention, FIG. 2 is a top view of a rear carrier in the same embodiment, and FIGS. 2 is a sectional view taken along the line ■-■ and the line IV-IV in FIG. 2, FIG. 5 is a top view of the rear carrier in another embodiment, FIG. 6 is a top view of the rear carrier in yet another embodiment, and FIG. The figure is an exploded perspective view of the AII box in the same embodiment, FIG. 8 is a partially enlarged view of FIG. 6, and a top view showing the inside of the buffer box with the upper half removed. An exploded perspective view of a rear carrier and a vehicle body frame according to an embodiment of the invention, FIG. 10 is a cross-sectional view of the rear bracket of the same embodiment when no luggage is loaded, and FIG.
FIG. 4 is a partial cross-sectional view of the rear bracket at the time of firing. DESCRIPTION OF SYMBOLS 1...Vehicle frame, 2...Seat, 3...Rear wheel, 4...Swing unit, 5...Cushion unit 1~. 6...Su~742tJ rear, 6, 7... Bolt, 8... Insertion hole, 9... Nut, 10... Washer, 11... Longitudinal member, 12... Horizontal member, 13
...Elongated hole, 14...Mounting stay, 15...Top wall part, 1G...Pol 1~. 17... Washi p, 18.
... Nut, 19°20... Long hole, 21.22...
Bolt, 23... washer, 24... oak 1~. 2
5... Long hole, 26... Bolt, 27... Washer v
128...Nut, 29...Boss portion, 30...Pivot, 31...Mounting arm, 32...Buffer box, 33...
Groove, 34... Projection, 35... Mounting piece, 36... Partition plate, 37... Spring, 38... Damper, 39... Buffer structure, 40... Front bracket ]・, 41... Rear bracket 1~. 42...Bolt, 43...Coil spring, 44...Mounting c, 4G...Mounting member, 46...
・Mounting piece, 47...hole, 48...nut, 49...
・Mounting piece, 50...Bolt, 51...Nut, 52
... Stay, 53... Stay part, 54.55...
・Slot hole, 5G...Rubber, 57...Stopper, 58
... Coil spring, 59 ... Flange piece, 60 ... Engagement notch.

Claims (1)

[Claims] The rear carrier is attached to the vehicle body so as to be freely rotatable in the horizontal direction about a point at the front thereof, and a resistance applying means is provided between the rear portion of the rear carrier and the vehicle body to generate a force that resists the rotation. A rear carrier mounting device for a small vehicle, characterized by: