JPH034437B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a seat device for a vehicle such as a two-wheeled motor vehicle, which is equipped with a front seat and a rear seat.

[Prior Art] Conventionally, in a two-wheeled motor vehicle, a front seat and a separate rear seat are mounted on a pair of left and right seat rails that constitute a vehicle body frame.
It is known that both seats are fixed to the seat rail by independent fixing means (see Japanese Utility Model Application Publication No. 111155/1983).

[Problems to be Solved by the Invention] However, if independent fixing means are provided as described above, two fixing means will be required, which will complicate the structure and make it difficult to attach and detach both seats. It is necessary to operate each fixing means, which has the disadvantage that attaching and detaching operations are troublesome.

The present invention has been made in order to eliminate the above-mentioned conventional drawbacks, and an object of the present invention is to provide a vehicle seat device that has a simple structure and is easy to attach and detach.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a locking mechanism that locks the front part of the front seat to the vehicle body by moving the front seat forward along the seat rail. and a stopper member that abuts the rear part of the front seat locked by the locking mechanism and prevents the front seat from moving rearward, positioning the front seat on the vehicle body,
Then, with the front end of the rear seat in contact with the upper surface of the rear end of the front seat, the locking device locks the rear seat in a predetermined position, thereby preventing the rear end of the front seat from lifting up. The configuration is such that it also performs locking.

[Function] In this invention, when fixing both seats to the vehicle body, first, the front seat is moved forward along the seat rail, and the front part of the front seat is engaged with the vehicle body via the locking mechanism. At the same time, the rear part of the front seat is brought into contact with a stopper bracket to prevent the front seat from moving rearward. Next, with the front end of the rear seat pressed against the upper surface of the rear end of the front seat, the rear seat is locked in a predetermined position by the locking device. In other words, the rear end portion of the front seat is pressed against the vehicle body by the rear seat and is prevented from lifting up. Therefore, the front seat cannot be removed unless the rear seat locking device is released and the rear seat is removed.

To remove both seats from the vehicle, perform the operations in reverse order.

In this way, both the rear seat and the front seat can be locked by providing only one locking device, which is a fixing means, on the rear seat.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIG. 1, the vehicle body frame 11 includes a head pipe 12, a main tube 13, a pair of left and right upper tubes 14, a seat rail 15,
It consists of 16 lower tubes. A fuel tank 17 is mounted on the main tube 13 and the top tube 14, and is fixed by a fixing means (not shown). On the other hand, the above left and right 1
A front seat 21 is attached to the pair of seat rails 15.
and the rear seat 22 are placed, and the rear seat 22
The front seat 21 and the rear seat 22 are fixed to the vehicle body by the following mechanism, with the front end of the front seat 21 in contact with the upper surface of the rear end of the front seat 21.

First, a locking protrusion 24 is integrally formed on the front part of the bottom plate 23 of the front seat 21, and as shown in FIG.
A locking recess 25 provided at the rear of the fuel tank 17
The front part of the front seat 21 is positioned by inserting it into the seat and locking it. The above locking protrusion 2
4 and the locking recess 25 form the locking mechanism of the present invention. Note that the locking recess 25 may be provided in the vehicle body frame 11.

As clearly shown in FIG. 3, the rear part of the front seat 21 is in contact with a stopper bracket 26 fixed to the seat rail 15 by welding, thereby preventing the front seat from moving rearward. is being prevented. To position the front seat 21 in the left-right direction of the vehicle body in FIG.
This is done by bringing it into contact with the side of the The bottom plate 23 has a plurality of load receiving brackets 2.
7 is fixed, and by bringing this bracket 27 into contact with the seat rail 15, the load of the front seat 21 is supported.

As shown in FIG. 4, in the rear seat 22, a load-receiving bracket 30 and two locking brackets 31 are fixed to the front part of the bottom plate 29, and a load-receiving bracket 32 is fixed to the rear part of the rear seat 22. ,
Two holding stands 34 having stopper protrusions 33 at their tips, and lock claws 36 forming part of a locking device 35 are fixed.

On the other hand, the bracket 26 for the stopper has
Two locking pieces 37 are fixed, and at the same time the locking bracket 31 is locked to these locking pieces 37 (see Fig. 3), the load receiving bracket 30 is connected to the stopper bracket 26. make contact with the top surface of the In addition, at the rear end of the seat rail 15,
The rear bridge 39 is fixed by welding,
At the same time as the projection 33 of the rear seat 22 is engaged with the engagement hole 40 provided in the rear bridge 39, the load receiving bracket 32 is brought into contact with the upper surface of the rear bridge 39. In this way, the load of the rear seat 22 is supported by the load receiving brackets 30 and 32, and the rear seat 22 is positioned by the locking bracket 31 and the protrusion 33.

In addition to the lock pawl 36, the lock device 35 includes a cylinder lock 41 which is operated by a key, a support plate 42 integrally formed with the cylinder lock 41, a lever 43 which rotates in conjunction with the operation of the cylinder lock 41, and a cylinder lock 41 which is operated by a key. A pair of left and right movable plates 44, a rod 46 whose one end is locked to the lever 43 and whose other end is locked to a long hole 45 provided in one of the movable plates 44, and the pair of movable plates 44. The lock bar 47 is suspended from the lock bar 47. The support plate 42 of the cylinder lock 41 is fixed to a mounting bracket 51 fixed to the seat rail 15 with screws 52, and the movable plate 44 is fixed to a mounting bracket 53 provided on the rear bridge 39.
is rotatably attached to the stepped bolt 54,
A spring 55 attached to this stepped bolt 54
Therefore, a spring force is always applied in the counterclockwise direction 56.

In the above configuration, the two sheets 2 in FIG.
1 and 22 to the vehicle body, first move the front seat 21 forward along the seat rail 15 in a slightly forward-down position, and align the locking protrusion 24 of the front seat 21 with the locking recess of the fuel tank 17. By inserting the front seat 2 into the
1 is secured to the vehicle body via a fuel tank 17. From this state, the rear part of the front seat 21 is pushed down and brought into contact with the stopper bracket 26 to prevent the front seat 21 from moving rearward. This allows the front seat 21 to be positioned in the longitudinal direction. At the same time, the bracket 27 of the front seat 21 comes into contact with the seat rail 15, and the front seat 21
Supports the load of As described above, the front seat 21 is positioned in the left-right direction of the vehicle body by bringing a stopper piece (not shown) fixed to the bottom plate 23 into contact with the side surface of the seat rail 15.

Next, the rear seat 22 is moved from the rear toward the front, also in a slightly downwardly forward position, and the front end of the rear seat 22 is brought into contact with the upper surface of the rear end of the front seat 21, as shown in FIG. In this state, the locking bracket 31 of the rear seat 22 is locked to the locking piece 37 fixed to the stopper bracket 26. When the rear part of the rear seat 22 is pushed down from this state, the tapered surface 36a formed at the tip of the lock pawl 36 of the lock device 35 shown in FIG. 4 presses the lock bar 47 forward.
The movable plate 44 rotates clockwise 58 against the spring force of the spring 55, and the lock bar 47 moves forward and engages the engaging portion 36b above the tapered surface 36a of the lock pawl 36. engage.
As a result, a locked state is obtained in which the lock cannot be removed from the vehicle body by mere external force. When the movable plate 44 rotates in the clockwise direction 58, the rod 46 slides within the elongated hole 45 of the movable plate 44.
The rotational force of the movable plate 44 is not transmitted to the lever 43.

At the same time as the above locked state is obtained, the protrusion 33 of the rear seat 22 engages with the engagement hole 40 of the rear bridge 39, positioning the rear seat 22, and the load receiving bracket 30 is placed on the upper surface of the bracket 26. , load receiving bracket 3
2 abut against the upper surface of the rear bridge 39, and the load of the rear seat 22 is supported. In this state, the rear end of the front seat 21 in FIG.
Pressed downward by the front end of the rear seat 22,
Lifting is prevented. In other words, the front seat 21 is completely fixed to the vehicle body, and is in a locked state in which it cannot be separated from the vehicle body by mere external force.

Next, when removing the two seats 21 and 22 from the vehicle body, first remove the rear seat 22.

When removing the rear seat 22, please
The cylinder lock 41 of the locking device 35 shown in the figure is rotated in the unlocking direction using the key. As a result, the lever 43
rotates clockwise 60, and via the rod 46,
The movable plate 44 also rotates in the clockwise direction 58, and the lock bar 47 fixed to the movable plate 44 moves forward and disengages from the engaging portion 36b of the lock pawl 36. In other words, the lock is released. In this state, pull up the rear part of the rear seat 22 to disengage the protrusion 33 of the rear seat 22 from the engagement hole 40 of the rear bridge 39, and then pull out the entire rear seat 22 diagonally upward to the rear.
The locking bracket 31 is released from the locking piece 37, and the rear seat 22 is removed from the vehicle body.

When the rear seat 22 is removed, the rear end of the front seat 21 is opened, so that the front seat 21 is also unlocked. Therefore, if the front seat 21 is moved rearward while slightly lifting the rear part of the front seat 21 in FIG. The seat 21 is removed from the vehicle body.

In this way, the two seats 21 and 22 are firmly fixed to the vehicle body by the locking device 35 provided on the front seat 21 side.
Since there is no need to provide a locking device on the first side, the number of parts is reduced and the structure is simplified. Furthermore, by operating the one locking device 35 to attach and detach the rear seat 22, the front seat 21 can also be attached and detached. 22 becomes easy to attach and detach.

Note that if the engagement force between the lock pawl 36 of the lock device 35 and the lock bar 47 is strengthened so that the rear seat 22 is also positioned by this engagement, the bracket 3 for locking the rear seat 22 can be
1. Locking piece 37 of bracket 26, rear seat 2
It is also possible to omit the second projection 33 and the engagement hole 40 of the rear bridge 39.

[Effects of the Invention] As explained above, according to the present invention, only one locking device is required for locking both the front seat and the rear seat, which reduces the number of parts and simplifies the structure. Further, since the front seat and the rear seat can be attached and detached by operating only one locking device, the attachment and detachment operation becomes easy.

[Brief explanation of drawings]

FIG. 1 is a side view showing one embodiment of the present invention, FIG. 2 is an exploded perspective view showing a part of the same embodiment, and FIG. 3 is a partially sectional side view showing the main part of the same embodiment. FIG. 4 is an exploded perspective view showing the main parts. DESCRIPTION OF SYMBOLS 11... Vehicle body frame, 15... Seat rail, 21... Front seat, 22... Rear seat, 24, 25... Locking mechanism, 26... Bracket for stopper, 35... Lock device.

Claims (1)

[Claims] 1. In a vehicle seat device in which a front seat and a rear seat are mounted on a pair of left and right seat rails that constitute a vehicle body frame, the front part of the front seat is attached to the vehicle body by moving the front seat forward along the seat rails. a locking mechanism that locks the seat; a stopper bracket that abuts the rear of the front seat locked by the locking mechanism and prevents the front seat from moving rearward;
A vehicle seat device comprising a locking device for locking a rear seat in a predetermined position with the front end of the rear seat in contact with the upper surface of the rear end of the front seat.