KR100472329B1 - Attaching structure for seat lock mechanism and grab rail of motorcycle - Google Patents

Abstract

In motorcycles, the seat lock device is attached to the body frame together with the grab rails to simplify the structure.

The seat lock device 26 and the grab rail 27 which can lock the closed state of the seat 21 to the rear part of the vehicle body frame 1 which supports the occupant seat 21 so that opening and closing is possible. In the motorcycle provided with this, the seat lock device 26 and the grab rails 27 are connected to the body plate frame 1 by a common bolt 31 at a portion covered by the bottom plate 21a of the seat 21. Signed together).

Description

ATTACHING STRUCTURE FOR SEAT LOCK MECHANISM AND GRAB RAIL OF MOTORCYCLE}

The present invention relates to a two-wheeled vehicle having a seat lock device capable of locking the closed state of the seat and a grab rail that can be held by the occupant at the rear of the body frame supporting the occupant seat so as to be openable and closed. The attachment structure of the seat lock device and the grab rails.

In the conventional structure for attaching a seat lock device and a grab rail of a motorcycle, the seat lock device is attached to a grab rail supported by the vehicle body frame (see Japanese Patent Application Laid-Open No. 5-37916, for example).

In the conventional structure as described above, it is necessary to weld a dedicated bracket for attaching the seat lock apparatus to the grab rails, which results in a disadvantage in that the manufacturing cost increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and the seat lock device is attached to the vehicle body frame together with the grab rail without installing the bracket for the seat lock device, thereby simplifying the structure and further reducing the manufacturing cost. It is an object of the present invention to provide an attachment structure of a grab rail and a seat lock device of a motorcycle.

In order to achieve the above object, the present invention, in the rear of the vehicle body frame for supporting the occupant seat to open and close, a seat lock device that can lock the closed state of the seat, and a grab rail that the occupant can hold In the attachment structure of the seat lock device and the grab rail of the motorcycle, the seat lock device and the grab rail are fastened together to the vehicle body frame by a common bolt in a portion covered by the bottom plate of the seat. It is the 1st characteristic that one did.

According to this first feature, the seat lock device can be attached to the vehicle body frame together with the grab rails without providing the seat lock device-specific bracket, which can contribute to the simplification of the structure and further reduction of the manufacturing cost.

In addition to the first aspect of the present invention, the grab rail includes a pair of left and right shielding walls that are disposed to face each other with the seat lock device disposed directly under the bottom plate of the seat in a closed state. The second feature is that formed in the

According to this second feature, the pair of left and right shielding walls can prevent mischief against the seat lock device. In addition, since the shielding wall is integrated with the grab rails, it does not cause an increase in the number of parts.

An embodiment of the present invention will be described based on an embodiment of the present invention shown in the accompanying drawings.

1 is a side view of a motorcycle having an attachment structure of a seat lock device and a grab rail of the present invention, FIG. 2 is a rear enlarged side view of the motorcycle of the present invention, and FIG. 3 is a rear portion of a vehicle body frame of the motorcycle of the present invention. 4 is a longitudinal side view showing the circumference of the front end of the seat of the passenger seat, FIG. 5 is a longitudinal lateral view showing the circumference of the attachment part of the rear end of the seat of the present invention, and FIG. 6 is in a detached state of the seat of the present invention. Fig. 7 is a sectional view taken along the line 7-7 of Fig. 6, Fig. 8 is an exploded perspective view of the seat lock device and the grab rail, Fig. 9 is a longitudinal side view of the front attachment portion of the rear fender, and Fig. 10 is Fig. 10 2 is an enlarged sectional view taken along line 10-10, FIG. 11 is an enlarged sectional view taken along line 11-11 of FIG. 4, FIG. 12 is an enlarged sectional view taken along line 12-12 of FIG. 2, FIG. 13 is an enlarged sectional view taken along line 13-13 of FIG. Is an enlarged sectional view taken along line 14-14 of FIG. 2, and FIG. 15 is taken along line 15-15 of FIG. 16 is an enlarged sectional view taken along line 16-16 of FIG. 2.

First, in FIGS. 1 to 3, the body frame 1 of the motorcycle M is led rearwards with a head pipe 2 and a gentle downward slope from the upper rear face of the head pipe 2, and also in the middle part. The main tube 3 bent downward, the down tube 4 leading rearward from the lower rear surface of the head pipe 2 in a sharp descending gradient, and the rear side from the left and right sides in front of the bent portion of the main tube 3. A pair of left and right seat rails 5, a pair of left and right stays 6 connecting between the middle part of the seat rails 5 and the lower end of the main tube 3, and the front end of the seat rails 5. It consists of all cross members 7 welded to connect both of them to the rear end member 8 welded to connect both of them to the rear end of the seat rail 5. The front fork 10 supporting the front wheels 9f is axially supported by the head pipe 2 so as to be steerable, and the rear fork 11 supporting the rear wheels 9r swings up and down at the rear of the main tube 3. It is possibly axially supported, and a rear cushion 12 is attached between these rear forks 11 and the seat rail 5.

The engine hangers 13 and 14 are formed in the lower end of the main tube 3 and the down tube 4, respectively, and the front and rear ends of the engine E are supported by these. The output of this engine E is transmitted to the rear wheel 9r via the chain transmission accommodated in the chain case 15 attached to the rear fork 11.

Above the engine E, the fuel tank 18 mounted and supported by the main tube 3 is arrange | positioned. At that time, all tongue tongues 18a protruding from the rear end of the fuel tank 18 are fixed to the cross member 7 by bolts 28 via elastic members 29.

An auxiliary device 19 (see Fig. 3) such as a battery or an air cleaner is installed in a triangular space surrounded by the main tube 3, the seat rail 5 and the stay 6, and the seat rail 5 The tool storage part 20 comprised in the upper part of the rear fender 50 attached to it is arrange | positioned between the left and right seat rails 5, and covers these auxiliary apparatus 19 and the tool storage part 20 from upper direction. The tandem seat 21 for the passenger is attached to the seat rails 5 on the left and right sides, that is, attached to the seat rail 5 so as to be able to open and close. In addition, a pair of left and right side covers 22 covering the auxiliary device 19 from both the left and right sides are attached to the vehicle body frame 1 in a detachable manner.

4 and 5, the attachment structure of the sheet 21 will be described.

On the bottom plate 21a of the sheet 21, the support pieces 23 are all fitted under the cross member 7 so that they can be pulled out and the plurality of elastic members provided on the left and right seat rails 5 ( 24 and a lock pin 25 held by the seat lock device 26 provided on the rear cross member 8 are provided. Therefore, when the support piece 23 is fully inserted in the lower side of the cross member 7, and the lock pin 25 is latched on the seat lock apparatus 26, compressing the elastic support member 24 on the seat rail 5, The sheet 21 can be held on the seat rail 5 without shaking, and the sheet 21 can protect the auxiliary device 19 and the tool storage unit 20 from mischief. When the operation | movement of the seat lock apparatus 26 is canceled | released, the sheet | seat 21 is removed from the seat rail 5, and the maintenance of the auxiliary apparatus 19, and the thing of the thing to the tool storing part 20 are enabled.

5 to 8, the attachment structure of the seat lock device 26 and the grab rails 27 held by the occupant sitting on the rear of the seat 21 will be described.

The seat lock device 26 and the grab rails 27 are fastened together on the rear cross member 8 by a plurality of common bolts 31. That is, the seat lock apparatus 26 is provided with the base board 30 which has the attachment hole 32 in the left and right both ends. On the other hand, the grab rail 27 is U-shaped when viewed in plan so as to surround the rear end of the sheet 21, and the base plate (a) on the pair of inwardly facing brackets 33 formed at the left and right front ends thereof. A pair of right and left attachment holes 34 corresponding to the attachment holes 32 of 30 are formed, and the left and right pairs corresponding to the attachment holes 32 and all attachment holes 34 are formed in the rear cross member 8. Bolt 31 is welded.

First, the attachment hole 32 of the base plate 30 of the seat lock device 26 is inserted into the bolt 31, and then all the attachment holes 34 of the grab rail 27 are closed by the bolt 31. ), The nut 37 is screwed to the bolt 31 and tightly fastened, thereby making the base plate 30 of the seat lock device 26 and the bracket 33 of the grab rail 27 common. The bolt 31 and the nut 37 can be fastened together to the rear cross member 8. In addition, the bracket 33 of the grab rail 27 has a pair of left and right bolts 38 passing through the brackets 33 from the rear of the left and right bolts 31 on the lower surface of the rear cross member 8. By screwing onto the nut 36 welded to and tightly tightening, it is firmly fixed to the rear cross member 8.

In this way, the seat lock device 26 and the grab rails 27 are provided together with the rear cross member 8 of the vehicle body frame 1 without installing the bracket for attaching the seat lock device 26 to the grab rail 27. ), It can contribute to the simplification of the structure and further the reduction of the manufacturing cost.

As shown in FIG. 7, the left and right brackets 33 of the grab rails 27 are integrally formed with a pair of left and right shielding walls 39 facing each other with the seat lock device 26 interposed therebetween. When the sheet 21 is fixed at the correct position, the upper end of these shielding walls 39 enters into the left and right recesses 40 formed on the bottom plate 21a. Therefore, the left and right shielding walls 39 can work together with the left and right sidewalls of the bottom plate 21a of the sheet 21 to prevent mischief against the seat lock device 26. In addition, since the shielding wall 39 is integrated with the grab rails 27, it does not cause an increase in the number of parts.

In the seat lock apparatus 26, the intermediate part of the base plate 30 is raised in the cross-sectional shape, and the housing part 30a is formed, and in this housing part 30a, the rear end of the lock lever 41 is housed. It is supported by the pivot shaft 42 to the part 30a. Between the front end of this lock lever 41 and the left-right end part of the base board 30, the lock spring 43 which attaches the lock lever 41 to one side is provided long. The base plate 30 is provided with a stopper 44 which defines the limit of rotational movement of the lock spring 43 in the direction of the secondary force, and when the lock lever 41 is in contact with the stopper 44, One side of the lever 41 faces the guide hole 45 opened in the center portion of the housing portion 30a. Therefore, when the lock pin 25 of the seat 21 is inserted into the guide hole 45, the harpoon-shaped expansion head 25a of the lock pin 25 pushes one side of the lock lever 41 down. When passing, the lock lever 41 rotates again with the force of the lock spring 43 to the lock pin 25 side, and engages with the part corresponding to the neck of the expansion head 25a, and the seat 21 Is locked at a predetermined attachment position.

As shown in FIG. 2, a cylinder lock 48 is attached to a bracket 47 welded to the rear end of one seat rail 5 and extending downward, and attached to the inner end of the rotor of the cylinder lock 48. It is connected to the tip of the lock lever 41 via an interlocking wire 49 (see FIG. 6) to an actuating arm (not shown). Since the cylinder lock 48 can be operated only by a predetermined key (not shown), when the cylinder lock 48 is opened by the key, the interlock wire 49 is pulled to lock the lock lever 41. The lock pin 25 can be released by rotating it against the bias force of the spring 43.

5-11, the rear fender 50 and the said tool accommodating part 20 which cover the upper surface of the rear wheel 9r are demonstrated.

As shown in Figs. 9 and 10, the rear fender 50 secures the front end portion to the bracket 51 fixed to the stay 6 of the body frame 1 with bolts 52, and the rear end portion is fixed to the seat rail ( It is attached to the vehicle body frame 1 by fixing to the bracket 54 welded to the rear end of 5) with the bolt 53.

As shown in Figs. 5, 7 and 11, the upper surface of the rear fender 50 is integrally formed with a box 55 having the upper surface opened, so as to cover the box 55 and the upper surface thereof. The tool housing 20 is constituted by a cover 57 which is coupled to the box 55 by a vis 56 (see FIG. 11). The lid 58 is integrally connected to the front end of the cover 57 via the flexible hinge 59 to open and close the front end of the tool storage unit 20. This tool storage part 20 is arrange | positioned under the rear cross member 8 formed in the scaffold shape.

Then, as described above, when the seat lock device 26 is released and the seat 21 is detached from the vehicle body frame 1, the lid 58 is opened and closed to insert and unload the object into the tool storage unit 20. I can do it.

Next, the side cover 22 will be described with reference to FIGS. 2 and 14 to 16.

Since the left and right side covers 22 are symmetrical, only one of them will be described.

As shown in FIG. 2, the side cover 22 consists entirely of the side cover 22f and the rear side cover 22r connected to the rear end.

2, 10, and 14, the rear side cover 22r engages the engaging projection 61 protruding from the inner wall of the front and rear middle part thereof with the engaging hole 62 of the side wall of the rear fender 50. The rear lower portion is supported by the rear fender 50 by fixing the rear lower portion to the rear fender 50 with the vis 63.

As shown in Fig. 15, a louver-shaped makeup plate that partitions the insertion port 64 into which the rear end of the side cover 22f is inserted between the front end of the rear side cover 22r and the rear end of the side cover 22f. 65 is attached to the locking claw 66 and the vis 67.

On the other hand, as shown in Fig. 2, Fig. 12 and Fig. 13, all of the side covers 22f are engaged with the brackets 69 secured to the main tube 3 with the locking projections 68 protruding from the inner wall of the upper front end portion thereof. It is supported by the vehicle body frame 1 by engaging with the hole 70 and fixing the lower front end part by the bolt 73 to the bracket 71 fixed to the stay 6 via the distance collar 72.

At that time, since the rear end of the side cover 22f is entirely inserted into the insertion hole 64 and covered with the decorative plate 65, the appearance can be improved.

2 and 16, all of the upper middle part of the side cover 22f and the upper front end part of the rear side cover 22r are joined by the bis 74, so that the rigidity of the side cover 22 is strengthened. do. Since the engaging portion is covered by the side wall of the bottom plate 21a of the sheet 21, the appearance is also good.

5, 6 and 8, the rear ends of the left and right rear side covers 22r are interconnected by rear covers 76, and the rear covers 76 are bolted to the rear cross member 8. 78), which is supported by a bracket 77 that is secured to the rod 78). The tail lamp 80 is attached to the lower portion of the rear cover 76.

This invention is not limited to the said Example, A various design change is possible without leaving the range of the summary.

According to the first aspect of the present invention as described above, a seat lock device capable of locking the closed state of the seat, and a grab that the occupant can hold on the rear portion of the vehicle body frame supporting the occupant seat so as to be openable and closed. In the attachment structure of the seat lock apparatus and the grab rail of the motorcycle which attach a rail, in the part covered by the bottom plate of the said sheet | seat, the said seat lock apparatus and the grab rail are joined together to a vehicle body frame by a common bolt. Since it is fastened, a seat lock apparatus can be attached to a vehicle body frame with a grab rail, without providing the bracket for seat lock apparatuses, and it can contribute to the simplification of a structure and further reduction of a manufacturing cost.

In addition, according to the second aspect of the present invention, in addition to the first aspect, the grab rails are arranged to face each other with the seat lock device disposed directly below the bottom plate of the sheet in a closed state. Since a pair of shielding walls were formed integrally, the said shielding wall can prevent the playfulness to a sheet lock apparatus. In addition, since the shielding wall is integrated with the grab rails, it does not cause an increase in the number of parts.

1 is a side view of a motorcycle having an attachment structure of a seat lock device and a grab rail of the present invention;

2 is a rear enlarged side view of the motorcycle of the present invention;

3 is a side view showing a rear portion of a vehicle body frame of a motorcycle according to the present invention;

Figure 4 is a longitudinal side view showing the periphery of the attachment portion of the front end portion of the passenger seat;

Figure 5 is a longitudinal side view showing the periphery of the attachment portion of the rear end of the sheet of the present invention,

6 is a plan view of the rear end of the motorcycle shown in a detached state of the seat of the present invention;

7 is a cross-sectional view taken along line 7-7 of FIG. 6;

8 is an exploded perspective view of the seat lock device and the grab rails;

9 is a longitudinal side view of the front end attachment portion of the rear fender;

10 is an enlarged sectional view taken along line 10-10 of FIG. 2;

11 is an enlarged sectional view taken along line 11-11 of FIG. 4;

12 is an enlarged sectional view taken along line 12-12 of FIG. 2;

FIG. 13 is an enlarged sectional view taken along line 13-13 of FIG. 2;

14 is an enlarged sectional view taken along line 14-14 of FIG. 2;

15 is an enlarged sectional view taken along line 15-15 of FIG. 2;

16 is an enlarged cross-sectional view taken along line 16-16 of FIG. 2.

<Explanation of symbols for main parts of drawing>

M: Motorcycle 1: Body frame

21: passenger seat 21a: the bottom plate

26: seat lock device 27: grab rail

31 common bolt 39 shielding wall

Claims (5)

At the rear of the vehicle body frame 1 supporting the occupant seat 21 so as to be openable and closed, a seat lock device 26 capable of locking the closed state of the seat 21 and a grab that the occupant can grip In the attachment structure of the seat lock apparatus of the motorcycle and the grab rail which attach the rail 27, The seat lock device includes a cylinder lock 48 and a seat lock device main body 26 separately, In the portion covered by the bottom plate 21a of the seat 21, the seat lock device main body 26 and the grab rails 27 are fastened together to the vehicle body frame 1 by a common bolt 31. An attachment structure of a seat lock device and a grab rail of a motorcycle. The attachment structure of the seat lock apparatus and the grab rail of the automatic motorcycle according to claim 1, wherein the grab rails are disposed above the seat lock apparatus main body. The attachment structure of the seat lock apparatus and the grab rail of a motorcycle as claimed in claim 1, wherein the bolt is welded from the bottom to the top. The attachment structure of the seat lock apparatus and grab rail of a motorcycle as claimed in claim 1, wherein the cylinder lock is disposed on a side of the motorcycle. The method according to any one of claims 1 to 3, The grab rails 27 include a pair of left and right shielding walls disposed to face each other with the seat lock device main body 26 interposed therebetween directly under the bottom plate 21a of the seat 21 in a closed state ( 39), the attachment structure of the seat lock apparatus and the grab rail of the motorcycle characterized by the integral formation.