JPH07110623B2 - Seat support device for motorcycles - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a motorcycle seat supporting device that allows a main seat and a tandem seat to be locked to a vehicle body frame with a simple structure.

(Prior Art) In a motorcycle, a seat provided on a vehicle body frame is composed of a main seat and a tandem seat provided separately from the main seat, and the tandem seat can be detachably attached to the vehicle body frame by an attaching / detaching means. There is something I did.
That is, if the tandem seat is removed, only one rider can be seated, while if the tandem seat is attached, two riders including passengers can be seated.

In addition, in the above case, since the space below the seat is used, the space is used to accommodate, for example, electric parts, which are vehicle body constituent parts, and the same as the tandem seat so that maintenance and inspection of the electric parts can be facilitated. The main seat is also removable from the body frame.

Further, in the case of the above configuration, in order to prevent tampering with electric parts, when these two seats are attached to the body frame, part of the tandem seat presses the main seat so that the main seat cannot be removed by itself. The tandem seat is provided with a key-operated type locking means, and when the tandem seat is key-locked, the main seat can be automatically locked together with the lock.

(Problems to be Solved by the Invention) In order to improve the rider's foot contact on the men-in-seat, the main seat is required to be provided at a low position. On the other hand, in order to make the storage space of the electric parts below the tandem seat as large as possible, it is required to provide the tandem seat at a high position. Therefore, if these requirements are satisfied, the tandem seat will be at a higher position than the main seat, and these two seats will be largely separated vertically.

However, with such a configuration, it is difficult to adopt the above-described conventional configuration in which, when both seats are mounted on the vehicle body frame, part of the tandem seat presses the main seat so that the main seat cannot be removed by itself. Become.

Therefore, it is conceivable to provide the locking means on each of the main seat and the tandem seat, but this complicates the structure of the seat supporting device.

(Object of the Invention) The present invention has been made in view of the above circumstances. For example, the rider's foot contact on the main seat is improved, and a sufficient space for storing parts is provided below the tandem seat. In order to be able to do so, it is an object of the present invention to make it possible to easily lock the main seat and the tandem seat with respect to the vehicle body frame side even when the two seats are separated.

(Structure of the Invention) A feature of the present invention for achieving the above-mentioned object is that the tandem seat is used as a main seat when the main seat and the tandem seat, which are individually provided on the vehicle body frame, are attached by detaching means. The point is that a lock means is provided so as to cover the operation portion of the attachment / detachment means, and the tandem seat can be key-locked to the vehicle body frame.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 is a motorcycle, a rear arm 3 is pivotally supported at a rear portion of a vehicle body frame 2 so as to be vertically swingable, and a rear wheel 4 is supported at a swing end of the rear arm 3, and 5 is an engine. The engine 5 drives the rear wheel 4.
6 is a fuel tank. The body frame 2 has a pair of left and right seat rails 8 and 8 at the rear portion thereof, and the seat rails 8 and 8 have a first to a fifth cross member 1 in order rearward.
1 to 15 are installed.

The seat 9 is a main seat 17 for seating a driver,
The tandem seat 18 is provided behind the main seat 17 and separately from the main seat 17. The main seat 17 is detachable on the vehicle body frame 2 by the first attaching / detaching means 19, and the tandem seat 18 is provided. Is the second detaching means 20
Therefore, it is detachable on the body frame 2 as above.
Reference numeral 21 denotes a cover, which covers the space sandwiched between the main seat 17 and the tandem seat 18 and the seat rails 8 from the outside.

The first attaching / detaching means 19 will be described.

When the main seat 17 is attached to the vehicle body frame 2, as shown in FIGS. 1 and 3, the main seat 17 is
The seat frame 22 is supported on the second cross member 12 and the third cross member 13 via a cushion rubber 23. Also, a pair of left and right locking pieces are provided on the front end of the seat frame 22.
24, 24 are provided in a protruding manner, and each locking piece 24 is locked to the first cross member 11 so as to be disengageable.

A pair of left and right hooks are provided on the lower surface of the rear end of the seat frame 22.
26,26 are projected. In addition, the axis of the shaft
The longitudinal intermediate portion of the arm 28 extending in the vehicle body direction is pivotally supported by the third cross member 13. An operating lever 29, which is an operating portion of the first attaching / detaching means 19, is integrally formed on the arm 28, and a protruding end of the operating lever 29 has a cover 21.
It extends inward and rearward and upward. The operation lever 29 is biased by a spring (not shown) so as to rotate counterclockwise (shown by an arrow A in FIG. 3) in a plan view, and the arm 28 is rotated by this biasing force to the left and right of the arm 28. Both pivot ends are simultaneously engaged with both hooks 26, 26 so that the main seat 17 is fixed to the body frame 2 side (shown by solid lines in each figure).

When the operating lever 29 is operated to rotate the arm 28 clockwise (shown by the arrow B in FIG. 3) against the biasing force of the spring (shown by the chain double-dashed line in FIG. 3), both hooks 26 The engagement of this arm 28 with respect to 26 and 26 is released.

Therefore, when removing the main seat 17 from the vehicle body frame 2 side, first, the operation lever 29 is operated to release the engagement of the arm 28 with the hooks 26, 26 as described above.
Next, when the rear portion of the main seat 17 is lifted upward while releasing the engagement of the locking piece 24 with the first cross member 11, the main seat 17 is removed from the body frame 2 side.

A battery 31, a water tank 32 and a brake oil tank 33 are housed in the space below the main seat 17,
By removing the main seat 17, maintenance and inspection can be performed on them.

Contrary to the above, in order to attach the main seat 17 to the body frame 2 side, first, the locking piece 24 is engaged with the first cross member 11. Next, when the rear portion of the main seat 17 is pushed down, the tip of the hook 26 is brought into sliding contact with the rotating end of the arm 28, and the arm 28 is once rotated clockwise in plan view. Further, when the rear portion of the main seat 17 is pushed down, the arm 28 is engaged with both hooks 26, 26 by the biasing force of the spring.
Then, this completes the attachment of the main seat 17.

Next, the second attaching / detaching means 20 will be described.

When the tandem seat 18 is attached to the vehicle body frame 2, the seat frame 34 of the tandem seat 18 is supported on the fourth cross member 14 and the fifth cross member 15. In this case, on the lower surface of the seat frame 34, the protrusion 34a
And a fitting hole 14a into which the protrusion 34a is fitted is formed in the fourth cross member 14. The tandem seat 18 is positioned on the fourth cross member 14 by these fittings.

A pair of left and right front hooks 35, 35 are provided on the lower surface of the front end of the seat frame 34 so as to project therefrom.
Is detachably engaged with the fourth cross member 14.

A rear hook 37 is projectingly provided on the lower surface of the rear end of the seat frame 34. Further, the fifth cross member 15 is provided with a movable engaging claw 38 which is engaged with the rear hook 37 in a detachable manner. The movable engaging claw 38 is fitted in a casing 39 mounted on the fifth cross member 15 so as to be slidable back and forth. The movable engaging claw 38 is biased forward by a spring (not shown) so as to engage with the rear hook 37, and the tandem seat 18 is fixed to the vehicle body frame 2 side by this engagement.

If the movable engaging claw 38 is moved backward (arrow C in FIG. 1).
The movable engagement claw 38 is disengaged from the rear hook 37. Therefore, when removing the tandem seat 18 from the vehicle body frame 2 side, first, the movable engaging claw 38 is moved backward as described above to release the engagement of the movable engaging claw 38 with the rear hook 37. Next, the fourth cross member 14
The tandem seat 18 can be removed from the body frame 2 side by lifting the tandem seat 18 upward while releasing the engagement of the rear hook 37 with respect to the tandem seat 18.

A tool box 41 and an ignition control circuit (not shown) are housed in the space below the tandem seat 18, and a storage space 42 is formed. It will be possible.

Contrary to the above, in order to attach the tandem seat 18 to the vehicle body frame 2 side, first, the front hook 35 is engaged with the fourth cross member 14. Next, if the rear portion of the tandem seat 18 is pushed down, the tip of the rear hook 37 will move the movable engaging pawl 38.
Then, the movable engaging claw 38 is once moved rearward. Further, when the rear part of the tandem seat 18 is pushed down, the movable engaging claw 38 is engaged with the rear hook 37 by the urging force of the spring. Then, this completes the attachment of the tandem seat 18.

The protruding end of the operating lever 29 extends toward the lower surface of the seat frame 34 of the tandem seat 18 at the position where the fourth cross member 14 is provided. That is, the operating lever 29 is covered by the front part of the tandem seat 18. Further, the protruding end of the operation lever 29 is a recess 43 formed in the seat frame 34.
It is fitted inside. Then, the operation lever 29 moves the pivot 27
When trying to turn around, the operating lever 29 comes into contact with the inner surface of the recess 43, and the turning is blocked. As a result, the engagement state between the hooks 26, 26 and the arm 28 is maintained, and the main seat 17 is locked to the vehicle body frame 2 side.

Cylinder lock type locking means 45 is provided which allows the movable engaging claw 38 to move back and forth and lock the movable engaging claw 38 in the casing 39 with a key 44. That is, the key
When 44 is inserted into the lock means 45 and is rotated, the movable engaging claw 38 is moved back and forth so that it can be engaged with and disengaged from the rear hook 37. Further, the movable engaging claw 38 engaged with the rear hook 37 can be locked to the casing 39, and the tandem seat 18 is locked to the vehicle body frame 2 side by this lock. Also, along with this, this tandem seat
Since 18 covers the operation lever 29 and disables the operation of the operation lever 29, the main seat 17 is also kept locked to the body frame 2 side.

(Effect of the Invention) According to the present invention, when the main seat and the tandem seat, which are individually provided on the vehicle body frame, are attached by the detaching means, the tandem seat covers the operating portion of the main seat detaching means, Moreover, since the tandem seat is provided with the lock means for enabling the key lock on the vehicle body frame, the tandem seat can be locked to the vehicle body frame side by the lock means so that the tandem seat covers the operation portion of the main seat detachable means. Since the operation of the operation portion is disabled, the main seat is also locked to the vehicle body frame side. Therefore, both the main seat and the tandem seat can be locked by a single locking means, so that the seat supporting device has a simple structure.

And, as described above, the configuration in which the main seat is also locked together with the locking of the tandem seat, even if the main seat and the tandem seat are greatly separated, can be obtained by simply extending the operation unit, In order to improve the rider's feet on the main seat and to secure a sufficient space for storing parts below the tandem seat, even if these two seats are separated,
The locking of the main seat and the tandem seat with respect to the body frame side can be achieved with a simple structure.

[Brief description of drawings]

1 shows an embodiment of the present invention, FIG. 1 is a side sectional view of a rear portion of a motorcycle, FIG. 2 is a rear side view of a motorcycle, and FIG.
Fig. 4 is a rear sectional plan view of the motorcycle. Fig. 4 is IV in Fig. 1.
Fig. 5 is a sectional view taken along line IV-IV in Fig. 5, and Fig. 5 is a sectional view taken along line VV in Fig. 1 of the same. 1 ... Motorcycle, 2 ... Body frame, 9 ... Seat, 17 ... Main seat, 18 ... Tandem seat, 19 ...
… First detaching means, 20 …… Second detaching means, 29 …… Operating lever (operating part), 45 …… Locking means.

Claims (1)

[Claims] 1. A seat is composed of a main seat and a tandem seat provided behind the main seat and separately from the main seat, and a detaching means is provided for enabling detachment of both of these seats on a vehicle body frame. In the motorcycle seat supporting apparatus, when the main seat and the tandem seat are attached to the vehicle body frame by the attaching / detaching means, the tandem seat covers the operation portion of the main seat attaching / detaching means, and the tandem seat is attached. A support device for a motorcycle seat, characterized in that the vehicle body frame is provided with a locking means capable of key locking.