JPH0733057A - Seat mounting structure for motorcycles - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the workability of attaching the front seat and pillion seat. [Structure] Pillion seat 2 behind the front seat 19
0 is installed separately, and a rear fixing portion 38 that overlaps the lock mechanism 34 provided on the vehicle body frame 2 is provided at the rear portion of the front seat 19, while the front portion of the pillion seat 20 is provided on the lock mechanism 34. The lock mechanism 3 is formed by penetrating the rear fixing portion 38 of the stacked front seats 19 from above.
In the seat mounting structure of the motorcycle, in which the front fixing portion 44 engaged with the vehicle 4 is provided, the front seat guide means 54 for restricting the rear fixing portion 38 of the front seat 19 from shifting left and right with respect to the lock mechanism 34. , 57 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorcycle seat mounting structure in which a front seat on which a rider is seated and a pillion seat on which a passenger is seated are provided separately, and each seat is removable. .

[0002]

2. Description of the Related Art A part of a motorcycle that can accommodate two passengers is provided with a front seat on which a rider is seated and a pillion seat on which a passenger is seated. Some are removable. Further, there is a structure in which the front seat and the pillion seat are attached and removed at the same time by adopting a structure in which the rear part of the front seat and the front part of the pillion seat are simultaneously fixed to the vehicle body frame.

In this case, for example, as shown in FIG. 3, a tongue-shaped rear fixing portion 38 that overlaps a locking mechanism 34 provided on the vehicle body frame 2 is provided at the rear portion of the front seat 19, while the pillion seat 20 is provided. A striker-shaped front fixing portion 44 that penetrates the rear fixing portion 38 from above and is engaged with the lock mechanism 34 is provided at the front portion of the.

In such a seat mounting structure, when the front fixing portion 44 of the pillion seat 20 is held by the locking mechanism 34, at the same time, the rear fixing portion 38 of the front seat 19 is held.
Also fixed to the lock mechanism 34, the front seat 1
9 and the pillion seat 20 are greatly improved in workability of mounting.

[0005]

However, in the prior art, when the rear fixing portion 38 of the front seat 19 is overlaid on the lock mechanism 34, the rear fixing portion 38 is likely to shift to the left and right, and the rear portion of the front seat 19 is positioned left and right. It was hard to do. Thus, the rear fixing portion 3 of the front seat 19
When 8 shifts to the left and right, the front fixing portion 44 of the pillion seat 20 cannot be engaged with the lock mechanism 34. Therefore, it may take time to mount the front seat 19 and the pillion seat 20, and the mounting workability is not sufficiently good.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a seat mounting structure for a motorcycle which can improve the mounting workability of the front seat and the pillion seat.

[0007]

In order to achieve the above object, in the seat mounting structure for a motorcycle according to the present invention, a pillion seat is separately installed behind the front seat,
On the rear part of the front seat, a rear fixing part that overlaps a lock mechanism provided on the vehicle body frame is provided,
In the seat mounting structure of the motorcycle, the front part of the pillion seat is provided with a front fixing part that is engaged with the locking mechanism by penetrating the rear fixing part of the front seat that is stacked on the locking mechanism from above, It is characterized in that front seat guide means for restricting the rear fixed portion of the front seat from shifting left and right with respect to the lock mechanism is provided.

Further, the front seat guide means is constituted by forming guide portions which are fitted to both shoulder portions of the lock mechanism in a rear fixing portion of the front seat.

Further, the front seat guide means is constituted by providing a guide portion for engaging with a fitting shaft projectingly provided on the upper surface of the lock mechanism at the rear portion of the front seat.

[0010]

According to the motorcycle seat mounting structure having the above structure, the front seat guide means allows the rear fixing portion of the front seat to be quickly aligned with the lock mechanism, so that the rear portion of the front seat can be easily positioned laterally. . Therefore, the installation time of the front seat and the pillion seat is greatly reduced, and the workability of installing the front seat and the pillion seat is improved.

Further, guide portions which are fitted to both shoulders of the lock mechanism are formed on the rear fixing portion of the front seat, or guide portions which are fitted to the fitting shaft projecting on the upper surface of the lock mechanism are provided to the front seat. Since the front seat guide means is provided in the rear portion, the structure of the front seat guide means can be made very simple and lightweight, and the manufacturing cost can be reduced.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a left side view of a motorcycle to which the present invention is applied. Body frame 2 of this motorcycle 1
The main frame 4 is configured to surround the engine 3, and the seat frame 5 extends rearward from the main frame 4. The seat frame 5 is composed of a pair of left and right seat rails 6, a pair of left and right seat stays 7, and bridge members 8, 9, 10 and the like installed between the left and right seat rails 6.

A front wheel 11 is provided on the front head of the main frame 4.
A front fork 12 that supports the vehicle is pivotally attached to the handlebar 13 so that the front fork 12 is rotatable left and right. It is pivoted up and down. The output of the engine 3 is transmitted to the rear wheel 15 via the chain 17.

A fuel tank 1 is provided above the main frame 4.
8 is installed, and a front seat 19 and a pillion seat 20 are detachably mounted on the seat frame 5. The front portion of the vehicle body and the left and right side surfaces of the seat frame 5 are covered with a cowling 21 and side covers 22.

FIG. 2 is a left side view showing the seat frame 5, the front seat 19 and the pillion seat 20, FIG. 3 is an enlarged view of a part III in FIG. 2, and FIG. 4 is a part IV in FIG.
It is a longitudinal cross-sectional view taken along the line -IV, showing the first embodiment of the present invention. Note that, in FIG. 2, the front seat 19 and the pillion seat 20 are shown in a cross section taken along the center line of the vehicle body.

Front seat 19 and pillion seat 20
Is the cushion material 2 on the seat bases 23 and 24, respectively.
5, 26 are laminated, and the sheet skin materials 27, 2
8 is covered.

Seat rail 6 and the bridge members 8 and 1
Elastic cushioning members 31, 32, 33 are fixed on the 0, and a lock mechanism 34 is firmly fixed on the bridge member 9 by bolts 35 and the like. And
The front seat 19 is placed on the cushioning members 31, 32, and the pillion seat 20 is placed on the cushioning member 33 and the lock mechanism 34.

A front engaging convex portion 36 extending forward is integrally provided at a front end portion of the seat base 23 of the front seat 19. The front engagement convex portion 36 is inserted from the rear into a front engagement concave portion 37 provided on the lower surface of the rear portion of the fuel tank 18, for example, whereby the movement of the front portion of the front seat 19 in the vertical and horizontal directions is restricted.

At the rear end of the seat base 23 of the front seat 19, a pair of left and right rear fixing portions 38 extending rearward in a tongue shape are integrally provided. The rear fixing portion 38 is formed so as to overlap the lock mechanism 34, and a pair of left and right vertical holes 39 that open on the upper surface of the lock mechanism 34.
A through hole 41 matching the position of is formed.

On the other hand, at the rear end portion of the seat base 24 of the pillion seat 20, a rear engaging convex portion 42 extending rearward is integrally provided. The rear engaging convex portion 42 is inserted into the rear engaging concave portion 43 provided in the bridge member 10 from the front side, whereby the movement of the rear portion of the pillion seat 20 in the vertical and horizontal directions is restricted.

A pair of left and right striker-shaped front fixing portions 44 extending downward are provided on the lower surface of the front portion of the seat base 24 of the pillion seat 20. These front fixing portions 44 are, for example, bolts 45 on the lower surface of the seat base 24.
Are fixed to brackets 46 fixed by, for example, each front fixing portion 44 is capable of penetrating the rear fixing portion 38 of the front seat 19 from above and being inserted into the vertical hole 39 of the lock mechanism 34 from above. There is.

A notch 48 which is engageable with a lock claw 47 protruding into the vertical hole 39 of the lock mechanism 34 is formed at an intermediate portion of the front fixing portion 44, and the front end of the front fixing portion 44 has a tip end. It is obliquely cut so that the lock claw 47 can be pushed open. Incidentally, 49 is a buffer member.

By the way, the bracket 46 is provided with a fitting hole 51 located between the left and right front fixing portions 44. Further, the fitting hole 51 is formed on the upper surface of the lock mechanism 34.
A fitting shaft 52 that fits from below is provided in a protruding manner, and a coil spring 53 is annularly mounted around the fitting shaft 52.

When the pillion seat 19 is set on the seat frame 5, first, the rear engaging convex portion 42 is inserted into the rear engaging concave portion 43 from the front, and then the front fixing portion 44 of the locking mechanism 34 is inserted. Insert into the vertical hole 39. At this time,
As described above, the rear fixing portion 3 stacked on the lock mechanism 34.
The front fixing portion 44 penetrates the through hole 39 provided in the No. 8.

In this way, the front fixing portion 44 is locked by the lock mechanism 3.
4 is inserted into the vertical hole 39, the tip of the diagonally cut front fixing portion 44 compresses the lock claw 47 in the vertical hole 39, and when the front fixing portion 44 is further advanced, the notch 48 is formed. The front fixing portion 44 is prevented from coming off by engaging with the lock claw 47.
Therefore, the front seat 19 is placed on the lock mechanism 34.
The front part of the pillion seat 20 is placed via the rear fixing part 38 and the cushioning member 49, and the rear part of the front seat 19 and the front part of the pillion seat 20 are simultaneously locked by the locking mechanism 34.
Fixed to.

When the pillion seat 20 is removed, a lock release mechanism (not shown) incorporated in the lock mechanism 34 is operated by using a specific key, and the lock claw 47 is opened in the vertical hole 39.
The lock claw 47 and the cutout 48 are disengaged by immersing the lock claw 47 in the inner surface. Then, the front portion of the pillion seat 20 floats up due to the biasing force of the coil spring 53 around the fitting shaft 52, and the pillion seat 20 can be easily removed.

When the pillion seat 20 is removed, the front seat 19 can also be immediately removed. In this way, the front seat 19 and the pillion seat 20 can be attached to and detached from the seat frame 5 at the same time.
0 is easy to attach and remove.

Now, the rear fixing portion 3 of the front seat 19
8 is provided with front seat guide means 54. The front seat guide means 54 restricts the rear fixing portion 38 of the front seat 19 from shifting to the left and right with respect to the lock mechanism 34. For example, as shown in FIG. 4, both sides of the rear fixing portion 38 are moved downward. The guide portions 55, 55 are formed so as to be fitted to both shoulder portions 34a of the lock mechanism 34 by being bent in the direction of.

Therefore, when the rear fixing portion 38 of the front seat 19 is placed on the lock mechanism 34, the guide portions 55, 55 are fitted to both shoulder portions 34a of the lock mechanism 34,
The rear fixing portion 38 is immediately aligned on the locking mechanism 34. Therefore, the position of the through hole 41 of the rear portion fixing portion 38 and the position of the vertical hole 39 of the locking mechanism 34 are promptly aligned with each other, and a state is waited for the front portion fixing portion 44 of the pillion seat 20 to be inserted.

FIG. 5 is a diagram showing a second embodiment of the present invention. In this embodiment, the front seat guide means 57 is formed by extending the guide portion 56, which engages with the fitting shaft 52 protruding from the upper surface of the lock mechanism 34, to the rear portion of the front seat 19. In this case, when the rear fixing portion 38 of the front seat 19 is placed on the lock mechanism 34, the fitting shaft 52 is inserted into the through hole 58 of the guide portion 56 from below, and the rear fixing portion 38 is placed on the lock mechanism 34. Aligned.

According to the seat mounting structure as described above, the rear fixing portion 38 of the front seat 19 is quickly aligned on the lock mechanism 34 by the front seat guide means 54 or 57, and the rear portion of the front seat 19 is positioned laterally. It will be easier to do. Therefore, the mounting time of the front seat 19 and the pillion seat 20 is significantly shortened, and the workability of mounting the front seat 19 and the pillion seat 20 is improved.

Further, a guide portion 55 fitted to both shoulder portions 34a of the lock mechanism 34 is formed on the rear fixing portion 38 of the front seat 19, or a fitting shaft 52 protruding from the upper surface of the lock mechanism 34 is engaged. The front seat guide means 54 is provided with a matching guide part 56 at the rear part of the front seat 19.
Alternatively, the structure of the front seat guide means 54, 57 can be made very simple and lightweight, and the manufacturing cost can be reduced.

[0034]

As described above, in the seat mounting structure for a motorcycle according to the present invention, the pillion seat is provided separately behind the front seat, and the body frame is provided behind the front seat. A rear fixing portion that overlaps the lock mechanism is provided, while a front fixing portion that engages with the lock mechanism by penetrating from above the rear fixing portion of the front seat that is stacked on the lock mechanism in the front portion of the pillion seat. In a motorcycle seat mounting structure provided with parts, front seat guide means for restricting the rear part of the fixed part of the front seat from shifting to the left and right with respect to the lock mechanism is provided.

According to such a seat mounting structure, the front seat guide means quickly aligns the rear fixing portion of the front seat with the lock mechanism, which facilitates lateral positioning of the rear portion of the front seat. Therefore, the installation time of the front seat and the pillion seat is greatly reduced, and the workability of installing the front seat and the pillion seat is improved.

Further, in the seat mounting structure for a motorcycle according to the present invention, guide portions that fit into both shoulders of the lock mechanism are formed in the rear fixing portion of the front seat, or they are projected on the upper surface of the lock mechanism. Since the front seat guide means is configured by providing a guide portion that engages with the provided fitting shaft at the rear portion of the front seat, the structure of the front seat guide means is very simple. The weight can be reduced and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a left side view of a motorcycle to which the present invention has been applied.

FIG. 2 is a left side view showing a seat frame, a front seat, and a pillion seat.

FIG. 3 is an enlarged view of a part III in FIG.

FIG. 4 is a vertical sectional view taken along the line IV-IV in FIG. 3, showing the first embodiment of the present invention.

5 is a vertical sectional view taken along the line IV-IV in FIG. 3, showing a second embodiment of the present invention.

[Explanation of symbols]

 1 Motorcycle 2 Body Frame 6 Seat Rails 8, 9, 10 Bridge Member 19 Front Seat 20 Pillion Seat 31, 32, 33 Cushioning Member 34 Lock Mechanism 38 Rear Fixing Part 44 Front Fixing Part 52 Fitting Shaft 54, 57 Front Seat Guide means 55, 56 Guide part

Claims (3)

[Claims] 1. A pillion seat is separately installed behind a front seat, and a rear fixing part is provided at a rear part of the front seat so as to overlap a lock mechanism provided on a vehicle body frame, while a front part of the pillion seat is provided. In the seat mounting structure of the motorcycle, the rear seat fixing structure is provided with a front fixing part that penetrates a rear fixing part of the front seat that is overlaid on the locking mechanism from above and is engaged with the locking mechanism. A seat mounting structure for a motorcycle, characterized in that front seat guide means for restricting the fixed portion from shifting to the left and right with respect to the lock mechanism is provided. 2. The front seat guide means is constituted by forming guide portions, which are fitted to both shoulder portions of the lock mechanism, on a rear fixing portion of the front seat. Seat mounting structure for motorcycles. 3. The front seat guide means is constituted by providing a guide portion, which is engaged with a fitting shaft projectingly provided on an upper surface of the lock mechanism, at a rear portion of the front seat. Seat mounting structure for the motorcycle described.