JPS6235655Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a two-seater motorcycle equipped with a front seat where a driver sits and a rear seat where a fellow passenger sits.

In large two-wheeled motorcycles that carry two people and travel relatively long distances, the seats are often separated from each other in order to improve seating performance and riding comfort for the driver and passenger. In this case, conventionally, the front seat and the rear seat were each fixed separately with claw pieces or the like.

For this reason, the number of bolts for fixing the seat is large, and therefore the number of man-hours required to assemble the seat to the vehicle body is also increased, which increases costs and also increases the number of man-hours required for maintenance and inspection of the vehicle. Generally, when it comes to removing sheets, it is rare to remove just one of the sheets, and it is often necessary to remove all the sheets, which makes the work easier. Therefore, it is not preferable that each sheet be fixed separately.

The present invention eliminates these drawbacks.According to the present invention, when attaching the seat to the vehicle body, the front seat can be simply placed on the vehicle body without any special fixing work; By fixing the seat to the vehicle body, the front seat is also fixed.
When removing the seat, if you remove the rear seat, you can immediately remove the front seat as well.

The present invention will be explained below with reference to an embodiment shown in the accompanying drawings.

Figure 1 shows the entire motorcycle with a seat attached by the fixing device of the present invention;
The figure shows the body frame of this motorcycle and the attachment relationship of the seat to this body frame.

The body frame 2 of the motorcycle 1 includes a head pipe 3
, a pair of left and right main pipes 4 extending backward from the head pipe 3 above the engine E, a pair of left and right upper pipes 4a that reinforce and connect the middle position of the main pipe 4 and the head pipe 3, and the main pipe 4.
A down tube 5 extending downward from the front of the engine E, and a center pillar 6 which is a pipe integrated with the main pipe 4 and extending downward from the rear of the engine E.
, a pair of left and right side rails 7 extending from the main pipe 4 to the rear of the vehicle body, and a pair of left and right back stays 8 connected to the side rails 7 at the top and to the center pillar 6 through the rear fork bracket 9 at the bottom. It is formed.

A main fuel tank F is provided astride the pair of left and right upper pipes 4a and the main pipe 4, and a front seat 10 and a rear seat 11 are provided astride the pair of left and right side rails 7.

The front seat 10 and the rear seat 11 are constructed by placing cushions 14 and 15 on bottom plates 12 and 13 made of synthetic resin, respectively (see FIGS. 3 and 6).

In front of the bottom plate 12 of the front seat 10, a front locking arm member 16 is integrally protruded from the center of the lower surface thereof. This arm member 16 is formed into a box shape as shown in FIGS. 3 and 4, and has ribs 16
₁ is provided to provide sufficient strength. Further, a rear arm member 17 is provided protruding from the rear center portion of the bottom plate 12. As shown in FIG. 5, this rear arm member 17 is formed with a concave cross section by a base plate part ₁₇₁ and side plate parts ₁₇₂ standing upright on both left and right edges thereof, and is provided with ribs ₁₇₃ . It has great strength. A rectangular engagement hole 18 is provided in the substrate portion ₁₇₁ passing through it. Furthermore, the bottom plate 12
A recess 19 with a semicircular cross section extending in the left-right direction is provided in the middle portion of the recess 19 .

On the other hand, in the vehicle body frame 2, a first cross member 20 spans between the left and right side rails 7 at a position corresponding to the front locking arm member 16 of the front seat 10. The member 20 has an upper surface 16 ₂ of the front locking arm member 16.
A locking portion 21 is provided which comes into contact with (FIG. 4). The cross member 20 is also provided with a hinge member 22 for attaching the main fuel tank F.

Further, at a position corresponding to the recess 19 provided in the front seat 10, a cross pipe 23 is spanned between the left and right side rails 7, and a recess having a semicircular cross section is placed on the cross pipe 23. 19 is designed to fit.

Since the front seat 10, cross member 20, and cross pipe 23 are configured as described above, in order to attach the front seat 10 onto the side rail 7, the front end of the front locking arm member 16 is attached to the cross member 20. If you insert it below the locking part 21 and press down the rear part of the seat 10, the recess 1
9 is fitted into the cross pipe 23, and the upper surface ₁₆₂ of the arm member 16 contacts and is locked with the lower surface of the locking portion 21 of the cross member 20, and the front seat 10 is stabilized in a predetermined position. This front seat 10
As will be described later, the active fixation of the
This is done at the same time by fixing the rear seat 11 to the vehicle body frame.

A front arm member 24 is integrally provided on the bottom plate 13 of the rear seat 11 and protrudes from the center of the front lower surface thereof. This arm member 24 is formed into a box shape as shown in FIGS. 6 to 8, and is provided with a claw piece 25 projecting downward at its front end. This claw piece 25 is connected to the rear arm member 1 of the front seat 10.
It engages with a rectangular engagement hole 18 provided in 7. Note that the claw piece 25 is made smaller than the engagement hole 18 so that there is play between the two when they are engaged, the reason for which will be explained later. Side plate portion 2 of front arm member 24 of rear seat 11
6 is provided with a stepped portion ₂₆₁ , and this stepped portion 2
6 ₁ comes into contact with the end of the side plate portion 17 ₂ of the rear arm member 17 of the front seat 10 . Further, since the side plate portion 26 in front of the step portion ₂₆₁ is guided by the side plate portion ₁₇₂ of the rear arm member 17 of the front seat, the claw piece 25 is inserted into the engagement hole 18.
It can be fitted very easily. This arm member 24 is also provided with reinforcing ribs.

Side arm members 27 are provided on the inner surfaces of both front sides of the bottom plate 13, respectively. This side arm member 27
is fixed to the bottom plate 13 at its upper end with a nut 28, extends downward along the inner surface of the bottom plate 13, and has a claw piece 29 at its lower end.

On the other hand, the left and right side rails 7 are each provided with a box-shaped side locking member 30 protruding from a position corresponding to the claw piece 29.
A locking hole 31 that engages with the claw piece 29 is penetrated through the upper plate.

An engaging protrusion 32 is provided at the rear central portion of the bottom plate 13 to protrude downward, and engages with a rear locking member 34 provided on a second cross member 33 spanning between the left and right side rails 7. It's starting to match. The rear locking member 34 is composed of a locking frame 35 having a hole on the upper surface for receiving the engagement protrusion 32, and a locking lever 37 that is swingably supported on the locking frame 35 by a pivot 36. There is. The tip of the engagement protrusion 32 has a conical shape as shown in the figure, and a notch 38 is provided in the shaft portion at the upper end of this conical portion. The notch 3 is provided on the side of the locking lever 37.
A recess 39 is provided at a position corresponding to 8, and this portion engages with the notch 38 and locks the engaging protrusion 32 so that it does not slip out. Pivot 36 of locking lever 37
Since a spring 40 is attached between the opposite end and the cross member 33, the locking lever 37 is biased clockwise around the pivot shaft 36. Therefore, when the engagement protrusion 32 is inserted into the hole of the locking frame and pushed down from above, the conical surface of the tip of the engagement protrusion 32 first engages with the recess 3 of the locking lever 37.
9, the lever 37 is pushed by the conical surface of the projection 32 and swings counterclockwise against the force of the spring 40. When the protrusion 32 is further pushed down and the notch 38 reaches the position of the lever 37, the lever 37 is fitted into the notch 38 by the action of the spring 40, locking the protrusion 32.

A wire harness 42 is provided between the swinging end of the locking lever 37 and a bracket 41 provided on the vehicle body frame near the side locking member 30, and both ends of the wire 43 are attached to the locking lever. 37 and an arm 44 rotatably provided on the bracket 41, respectively. An operating lever 46 is fixed to the other end of the rotation shaft 45 of the arm 44. FIG. 13 shows the locking lever 37 when the engaging protrusion 32 is locked by the locking lever 37.
The state of the operating lever 46 is shown by a solid line. If the operating lever 46 is now rotated counterclockwise around the pivot shaft 45 to the position shown by the chain line 46' from this state, the locking lever 37 will also rotate around the pivot shaft 36 against the spring 40. Swing clockwise to the position shown by the chain line 37', and the recess 39
When the engaging protrusion 3 is removed from the notch 38, the engaging protrusion 3
Unlock 2.

Note that the operating lever 46 has a slot 47 for locking.
By inserting a key into the keyhole 49 of the lock 48 and engaging the locking rod 50 with the slot 47, the engaging protrusion 32 can be prevented from being unlocked by the operating lever 46. be. Further, the upper part of the locking rod 50 is shaped like a hook as shown in the figure, and is also used as a helmet holder for hanging a helmet string and keeping it locked when the vehicle is left alone.

Since the seat fixing device of the present invention is constructed as described above, it is extremely easy to attach both seats, compared to conventional devices in which the front seat and rear seat are fixed separately using bolts, etc.
Can be removed.

That is, when installing the seat, first insert the front locking arm member 16 of the front seat 10 below the locking portion 21 of the first cross member 20, and then push down the rear of the seat to cross the recess 19. While fitting onto the pipe 23, the arm member 1
The front seat 10 is attached by engaging the upper surface of the locking portion 6 with the lower surface of the locking portion 21, and then the rear seat 11 is inserted from diagonally above the rear of the front seat 10 as shown by the chain line 11' in FIG. Member 24
The claw piece 25 of the front seat 10 is attached to the rear arm member 17 of the front seat 10.
into the engagement hole 18 of the side arm member 27, and the claw piece 2 of the side arm member 27.
9 into the locking hole 31 of the side locking member 30, and by pushing down the rear part of the rear seat 11 as shown by arrow a in FIG. 18, and the claw piece 29
is engaged with the locking hole 31, and the engaging protrusion 3
2 to the rear locking member 3 on the second cross member 33
Lock 4. At this time, the locking lever 37 automatically locks the engaging protrusion 32, and the rear seat 11 is firmly fixed on the left and right side rails 7. At the same time, the front arm member 24 of the rear seat 11 engages with the rear arm member 17 of the front seat 10 and presses down this arm member 17 from above, thereby ensuring that the front seat 10 is also securely fixed on the left and right side rails 7. be done.

As mentioned above, the engagement hole 18 of the rear arm member 17 is made larger than the claw piece 25 of the front arm member 24, so that when they are engaged, there is play or backlash between them. Rear seat 11
There is no need to check the engagement hole 18 each time when attaching, making the attachment easier.

Furthermore, even if variations occur in the mounting positional relationship between the front seat 10 and the rear seat 11 due to manufacturing tolerances, the variations can be absorbed by the play.

Furthermore, since the bottom plates of both the front seat and the rear seat are made of synthetic resin, the bottom plates flex to some extent when the driver sits on the front seat, but this flexure causes the claw pieces 25 and the engagement holes 18 to The presence of the play can prevent the pawl piece 25 from being displaced from the engagement hole 18 due to excessive force being applied to the engagement portion.

When removing the seat, first press the operating lever 46.
After unlocking the engaging protrusion 32, both sheets can be easily removed by reversing the installation procedure described above.

As described above, according to the present invention, when attaching the seat to the vehicle body, the front seat can be simply placed on the vehicle body without any special fixing work, and the rear seat can be fixed to the vehicle body. The front seats are also fixed. When removing the seat, if you remove the rear seat, you can immediately remove the front seat as well.

Furthermore, the rear seat can be fixed and removed extremely easily without using bolts, nuts or special tools.

[Brief explanation of the drawing]

Figure 1 is a side view of a motorcycle to which the present invention is applied, Figure 2 is a side view showing how the seat is attached to the vehicle body frame, Figure 3 is a longitudinal sectional view of the front seat, and Figure 4 is the front locking arm. FIG. 5 is a perspective view of the rear arm member, FIG. 6 is a vertical cross-sectional view of the rear seat, FIG. 7 is a perspective view of the front arm member viewed from above,
Figure 8 is a perspective view of the front arm member seen from below;
The figures are a sectional view taken along the - line in Fig. 6, Fig. 10 is a side view showing the peripheral part of the side locking member, Fig. 11 is a perspective view of the same, and Fig. 12 is the engagement protrusion and rear locking member. FIG. 13 is a side sectional view showing the members, and a plan view showing the locking/unlocking device of the engaging protrusion. 1...Motorcycle, 2...Body frame, 3...Head pipe, 4...Main pipe, 5...Down tube, 6...Center pillar, 7...Side rail, 8...Back stay, 9...Rear Fork bracket, 10...front seat, 11...rear seat, 12, 13...bottom plate, 14, 15...cushion, 16...front locking arm member, 17...
Rear arm member, 18... Engagement hole, 19... Recess, 2
0...first cross member, 21...locking part,
22... Fuel tank mounting hinge, 23...
Cross pipe, 24... Front arm member, 25... Claw piece, 26... Side plate of front arm member, 27... Side arm member, 28... Nut, 29... Claw piece, 3
0... Side locking member, 31... Locking hole, 32...
Engaging protrusion, 33... Second cross member, 34...
... Rear locking member, 35 ... Locking frame, 36 ... Pivot, 37 ... Locking lever, 38 ... Notch, 3
9... recess, 40... spring, 41... bracket, 42... wire harness, 43... wire, 44... arm, 45... rotating shaft, 46... operating lever, 47... locking groove Hole, 48...Lock, 4
9...Keyhole, 50...Lock rod, E...Engine,
F...Main fuel tank.

Claims (1)

[Scope of utility model registration request] In a motorcycle having two front and rear seats extending over a pair of left and right side rails of a vehicle body frame, a front locking arm member is provided protruding from the front lower part of the bottom plate of the front seat, and a front locking arm member is provided between the left and right side rails. A locking member that engages with the front locking arm member is provided on a first cross member spanning the front seat, and a rear locking member that protrudes rearward from the bottom plate and is provided with an engagement hole is provided at the rear of the bottom plate of the front seat. An arm member is provided, and a front arm member having a claw piece that engages with an engagement hole of the rear arm member is provided protrudingly in front of the bottom plate of the rear seat, and on both front sides of the bottom plate of the rear seat. Side arm members each extending downward and having a claw piece at the tip thereof are provided, and the left and right side rails each have a locking hole that engages with the claw piece of the side arm member. Further, an engaging protrusion protruding downward is provided at the rear center portion of the bottom plate of the rear seat, and a second cross member spanning between the left and right side rails is engaged with the engaging protrusion. A seat fixing device for a motorcycle, characterized in that it is provided with a rear locking member that fits together.