JP3814066B2 - Seat lock device for motorcycle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seat lock device for a motorcycle using a front and rear separation type rear fender, and more particularly to a device suitable for a tandem seat.
[0002]
[Prior art]
The seat of a motorcycle is detachably attached to the seat rail side by a seat lock device, the front end is engaged with the rear end portion of the fuel tank, and the rear end portion is attached with a seat lock. is there. In addition, a long one such as a tandem seat has an additional structure for engaging with a seat rail in order to stabilize the intermediate portion.
[0003]
[Problems to be solved by the invention]
By the way, when adopting a separation type in which the rear fender is separated into the front and rear, there is no rear fender in the middle part of the seat in the front-rear direction. May be stolen and theft may occur due to an unintended unlocking operation.
[0004]
For this reason, when such a type of rear fender is employed, the seat lock position is limited to the rear end portion side of the seat, but the seat mounting rigidity is reduced, so the above-described intermediate portion engagement structure is required. Become.
[0005]
In this case, however, the seat must be slid in the front-rear direction when attaching or detaching the seat, which requires some kind of trick. It is desired that a seat lock can be adopted instead of a structure. In particular, tandem seats have such a strong demand.
[0006]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a seat lock device that can be locked at an intermediate portion of a seat and has a structure in which a hand cannot easily enter a seat lock portion from the outside.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a first invention relating to a seat lock device for a motorcycle according to the present application includes: a seat supported by a pair of left and right seat rails and detachably attached by a seat lock; In a motorcycle having a pair of rear fenders arranged separately in a direction, the rear fender includes a rear fender front portion and a rear fender rear portion that are spaced apart in the front-rear direction. The rear fender front portion and the rear fender A cross member that provides a seat lock at a position between the left and right seat rails in the space between the rear and the left and right seat rails corresponding to the middle part in the front-rear direction of the seat. A rib that extends from the bottom plate of the seat located above the seat lock to the cross member side through the front and rear of the seat lock is provided. Ribs and the bottom plate and the seat lock device motorcycle, characterized in that the formation of the closed space surrounding the seat lock by the cross member.
[0008]
According to a second aspect, in the first aspect, the sheet is a tandem sheet.
[0009]
According to a third aspect of the present invention, in the first aspect, at least a part of the front part of the rear fender is an appearance member, and a key operation part for unlocking the seat lock with a key is provided on a side surface thereof. .
[0010]
【The invention's effect】
According to the first invention, since the middle portion of the seat can be seat-locked, the attachment rigidity of the seat can be increased, and the conventional engagement structure can be eliminated, so that the attaching / detaching operation becomes easy and quick.
[0011]
In addition, a separable rear fender is employed, and the seat lock is housed in the closed space even though the seat lock is located in the intermediate portion where the rear fender is not provided.
[0012]
In addition, since the lower part of the seat lock is covered with the cross member, even if muddy water or the like jumps directly to the bottom plate of the seat, adhesion of muddy water or the like to the seat lock can be prevented.
[0013]
According to the second invention, since the tandem seat is adopted, the seat lock device is suitable for a tandem seat that has a long seat length and a particularly high demand for increasing the mounting rigidity.
[0014]
According to the third aspect of the present invention, since the external part that exposes at least a part of the front part of the rear fender is used, it is not necessary to cover the front part with a side cowl or the like as in the prior art. The seat lock key operation unit can be provided by using the unit. In addition, it can be multifunctional as an article storage unit such as a battery.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment will be described below with reference to the drawings. 1 to 13 show a first embodiment. FIG. 1 is a front and rear sectional view showing a mounting structure of a seat bottom plate and a rear cowl, FIG. 2 is a plan view thereof, and FIG. 3 is an external side view of a motorcycle. 4 is a half sectional view taken along line 4-4 in FIG. 1, FIG. 5 is a sectional view taken along line 5-5, FIG. 6 is a half sectional view of the sheet taken along line 6-6 in FIG. FIG. 8 is a partial sectional view of one side of the seat taken along line 7-7 in FIG. 2, FIG. 8 is an assembly view showing the mounting structure of the support, FIG. 9 is a perspective view of the rear cowl, and FIG. 10 is a plan view of the seat rail. 11 is a cross-sectional view showing the attachment structure of the front part of the rear fender, FIG. 12 is a cross-sectional view showing the detailed structure of the seat lock part, and FIG. 13 is a cross-sectional view showing the attachment structure of the rear part of the rear fender.
[0016]
First, the overall structure of the motorcycle will be briefly described with reference to FIG. 1 is a front wheel, 2 is a front fork, 3 is a handle, 4 is a head pipe, 5 is a main frame, 6 is a power unit, 7 is a joint plate, 8 is a seat rail, 9 is a swing arm, 10 is a rear wheel, and 11 is a buffer. , 12 is a fuel tank, 13 is a seat, 14 is a rear cowl, 15 is a taillight, 16 is a rear fender front portion, and 17 is a rear fender rear portion.
[0017]
The power unit 6 includes a V-type engine, and a joint plate 7 made of an iron plate press product is attached to the upper part of the left and right side surfaces of the rear part of the power unit 6, respectively. The front end portions of the seat rails 8 are respectively attached.
[0018]
The main frame 5 is composed of pipe members 5a and 5b that are arranged side by side with a space in the vertical direction and a plurality of reinforcing pipes 5c that connect them. The rear swing arm 9 is rotatably supported by a pivot 19 on a pivot bracket 18 attached to the power unit 6 at the front end.
[0019]
As is apparent from FIGS. 1 and 10, the seat rail 8 is disposed in a pair of left and right in the front-rear direction, and a rear end portion of the sub pipe 20 is attached to each front portion on the left and right. The front end portions of the left and right seat rails 8 and the sub-pipe 20 are attached to the joint plate 7.
[0020]
Between the left and right seat rails 8 and the sub-pipe 20, a cross pipe or the like for reinforcement is installed. That is, the sub pipe 20 is provided with a first cross pipe 21, and the seat rail 8 is overlapped with the second cross pipe 22 in the vicinity of the connecting portion of the sub pipe 20, the cross plate 23 in the middle portion in the front-rear direction, and the rear end portion. A three cross pipe 24 and a fourth cross pipe 25 at the rear end are provided.
[0021]
The third cross pipe 24 is provided with a seat lock stay 26 to which a seat lock 27 is attached. Hooks 28 projecting outward are provided in the vicinity of the fourth cross pipe 25 in the left and right seat rails 8, and end portions 28 a and 28 b of each hook 28 project beyond the seat rail 8 toward the vehicle body center side. . A fender stay 29 is attached to each rear end portion of the left and right seat rails 8.
[0022]
Next, the seat and rear cowl mounting structure will be described. As shown in FIGS. 1 and 2, the sheet 13 is a tandem type and includes a resin base plate 30. A bifurcated portion 31 is provided at the front end of the bottom plate 30, and the front end portion side of the seat 13 is supported by the fuel tank 12 by sandwiching an attachment portion 32 formed to protrude from the rear end portion of the fuel tank 12. Yes.
[0023]
The bottom plate 30 changes from the front seat portion 33 to the rear seat portion 34 in a stepped manner at the intermediate portion 35, and a seat lock fitting 36 is provided on the back surface of the rear seat portion 34 near the intermediate portion 35 so as to protrude downward. ing. The seat lock fitting 36 is locked to a seat lock 27 attached to the seat lock stay 26, whereby the seat 13 is detachably fixed to the seat rail 8.
[0024]
As is apparent from FIG. 12, ribs 37 and 38 projecting downward are formed integrally on the back surface of the bottom plate 30 before and after the seat lock fitting 36 is sandwiched, and the lower end portions of the bottom plate 30 are the front and rear end portions of the cross plate 23. A closed space 39 surrounding the seat lock 27 is formed by the ribs 37 and 38, the cross plate 23 and the bottom plate 30. Here, the closed space means the extent that a hand cannot be reached from the outside.
As apparent from FIG. 2, a plurality of bosses 40 are formed on the rear seat portion of the bottom plate 30 so as to protrude vertically along the edge. Further, on the left and right in the vicinity of the intermediate portion 35, a support portion 42 that is formed in a cylindrical shape and protrudes downward is formed, and a lower end portion thereof is formed with a slit 43 that is substantially U-shaped downward (FIG. 8).
[0026]
In addition, a slit 44 having a substantially U-shape is formed in a portion forming a standing wall shape on the side surface of the intermediate portion 35 which is a portion corresponding to the cross-section indicating line 7-7 in the drawing, and the clip 45 is overlapped with the slit 44. Installed. The clip 45 is an elastic member having a substantially U-shaped cross section. The clip 45 is attached at this portion with a thickness near the slit 44 from a hole 47 formed in the intermediate portion 35, and the integral nut portion 46 extends to the slit 44. They overlap (Fig. 7).
[0027]
On the other hand, as clearly shown in FIG. 9, the rear cowl 14 is formed of a suitable resin and has a substantially U-shape in a top view including a left side portion 50 and a right side portion 51 that are divided left and right from the vehicle body center and extend forward. A plurality of mounting portions 52 projecting toward the center of the vehicle body are formed at the upper edge that surrounds the opening covered by the bottom plate 30 of the seat, and a pair of mounting portions 53 projecting upward at the left and right front end portions, respectively. It is integrally formed.
[0028]
These mounting portions 52 and 53 are provided with through holes 54 and 55, respectively, and the mounting portion 52 is overlapped with the boss 40 of the bottom plate 30 as shown in FIG. The As shown in FIG. 7, the front end portion of the rear cowl 14 is also fastened and integrated with a tapping screw 57 from the inside, with the mounting portion 53 overlapped with the clip 45 so that the slits 44 and 55 are aligned.
[0029]
Further, as shown in FIGS. 4 and 8, an integral boss 60 is formed so as to project at a position corresponding to the slit 43 at the lower end of the support portion 42 inside each of the left portion 50 and the right portion 51 of the rear cowl 14. Here, the lower end portion of the support portion 42 is integrated from the inside to the inner surface of the rear cowl 14 by a bolt 63 via a collar 61 and a washer 62. The position of the boss 60 corresponds to the vicinity of the end of the rear cowl 14 at the other open end of the attachment.
[0030]
Reference numeral 64 in FIG. 4 denotes an insert nut of the boss 60. In FIG. 6, reference numeral 65 is a seat belt, 66 is a cushion material covered with a skin (not shown), 67 is a fixing bolt for the seat belt 65, and the seat belt 65 is attached to the bottom plate together with the reinforcing metal bracket 68. 30 is attached.
[0031]
As can be seen from FIG. 1, the rear fender is configured as a separate fender that is separated into a rear fender front portion 16 and a rear fender rear portion 17 and is spaced apart from the front and rear, and is supported by the seat rail 8 or the sub-pipe 20, respectively.
[0032]
As apparent from FIG. 11, the rear fender front portion 16 also serves as a battery box, and a battery 71 is accommodated in an accommodating portion 70 formed as a recess for that purpose. However, other electrical components such as fuses and ignition units and other articles are also accommodated as appropriate.
[0033]
The rear fender front portion 16 is engaged with the first cross pipe 21 from above by hook portions 72 formed on the bottom portion on the front side, and the rear portion is fastened to the side surface of the sub pipe 20 with bolts 73 to the sub pipe 20. Installed.
[0034]
The lower part of the rear fender front part 16 projects downward from the front extension part 30a (FIG. 1) of the seat bottom plate 30 to form an external part, and a key operation part 74 for unlocking the seat lock 27 on the side surface. Is provided.
[0035]
When a key (not shown) is inserted into the key operation portion 74 and rotated, the one end is connected to the key operation portion 74 and the other end is passed through the operation wire 75 attached to the seat lock 27 through the seat rail 8. It comes to lock.
[0036]
As apparent from FIG. 13, the rear fender rear portion 17 locks the engagement portion 80 at the front end to the extension portion 28 a of the hook portion 28 from the rear, and the stay 29 extends from the rear end portion of the seat rail 8 at the rear side surface. It is attached to the seat rail 8 by being fastened with a heavy bolt 81. The other extension 28b is also engaged from above with a recess formed in the upper end of the front part on the side wall of the rear part of the rear fender.
[0037]
The rear fender rear portion 17 has a container shape opened upward, and ribs 82 and 83 are formed on the front and rear sides of the rear fender so as to be substantially parallel to the seat rail 8. A space 84 in between is a document compartment.
[0038]
Next, the operation of this embodiment will be described. As apparent from FIGS. 1 and 12, since the intermediate portion of the seat 13 can be locked by the seat lock 27, the mounting rigidity of the seat 13 can be increased and the conventional engagement structure can be eliminated, so that the attaching / detaching operation can be performed. Easy and quick.
[0039]
In addition, a separable rear fender (16, 17) is adopted, and the seat lock 27 is housed in the closed space 39 even though the seat lock 27 is located in the intermediate portion where the rear fender is not provided, so that a hand enters from the outside. Helps prevent theft.
[0040]
In addition, since the lower portion of the seat lock 27 is covered with the cross plate 23, even if muddy water or the like splashes directly to the bottom plate 30 of the seat 13, most of the muddy water can be blocked by the cross plate 23, and more reliably by the ribs 37 and 38. Since it can interrupt | block, adhesion of muddy water etc. with respect to the seat lock 27 can be prevented effectively.
[0041]
The seat 13 is a tandem seat that has a particularly high demand for increasing the mounting rigidity due to the long seat length. However, the use of this seat lock device can satisfy the above demand, and is suitable for such a tandem seat. become.
[0042]
Furthermore, since the lower part which is at least a part of the rear fender front part 16 is exposed and becomes an appearance part, it is not necessary to cover the whole with a side cowl or the like as in the prior art, and the side cowl can be omitted or reduced in size. The key operation unit 74 of the seat lock 27 can be provided by using the exterior portion. In addition, it can be multifunctional as an article storage unit such as the battery 71.
[0043]
The present invention is not limited to the above-described embodiment and can be variously modified. For example, the present invention is not limited to the cross plate 23 and may be a cross pipe as long as a sufficient shielding area can be secured. Further, the entire front part 16 of the rear fender may be an appearance member.
[Brief description of the drawings]
FIG. 1 is a sectional view of a seat bottom plate and a rear cowl portion according to an embodiment. FIG. 2 is a plan view thereof. FIG. 3 is a side view of an outer appearance of a motorcycle. FIG. 5 is a sectional view taken along line 5-5 in FIG. 1. FIG. 6 is a half sectional view of the sheet taken along line 6-6 in FIG. 1. FIG. 7 is taken along line 7-7 in FIG. FIG. 8 is a partial cross-sectional view of the seat shown in FIG. 8. FIG. 9 is a perspective view of the rear cowl. FIG. 10 is a plan view of the seat rail. Cross-sectional view [FIG. 12] Cross-sectional view showing the detailed structure of the seat lock portion [FIG. 13] Cross-sectional view showing the rear fender mounting structure [Explanation of symbols]
8: seat rail, 13: seat, 14: rear cowl, 16: rear fender front, 17: rear fender rear, 23: cross plate (cross member), 27: seat lock, 30: bottom plate, 37: rib, 38: rib, 74: Key operation unit

Claims (3)

In a motorcycle including a seat supported by a pair of left and right seat rails and detachably attached by a seat lock, and a pair of rear fenders disposed separately in the front-rear direction above the rear wheel,
The rear fender is composed of a rear fender front portion and a rear fender rear portion that are spaced apart in the front- rear direction. The left and right seat rails correspond to a space between the rear fender front portion and the rear fender rear portion and an intermediate portion in the front-rear direction of the seat. A seat lock is provided at a position sandwiched between the seat locks, and the lower part of the seat lock is covered with a cross member passed between the left and right seat rails, and the cross member passes from the bottom plate of the seat located above the seat lock to the front and rear of the seat lock. A seat lock device for a motorcycle, comprising a rib extending to the side, and a closed space surrounding the seat lock formed by the rib, the bottom plate, and the cross member.   The seat lock device for a motorcycle according to claim 1, wherein the seat is a tandem seat.   The seat for a motorcycle according to claim 1, wherein at least a part of the front part of the rear fender is an external member, and a key operation part for unlocking the seat lock with a key is provided on a side surface thereof. Locking device.

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