WO2003084803A1

WO2003084803A1 - Seat lock device and passenger's handle installation structure of motorcycle

Info

Publication number: WO2003084803A1
Application number: PCT/JP2003/004596
Authority: WO
Inventors: Shunichi Nakabayashi; Mamoru Isomura
Original assignee: Honda Giken Kogyo Kabushiki Kaisha
Priority date: 2002-04-11
Filing date: 2003-04-11
Publication date: 2003-10-16
Also published as: CN1449962A; JP3901563B2; CN1195658C; BR0300638B1; KR20030081040A; AU2003236086A1; BR0300638A; JP2003306180A; KR100472329B1; BRPI0300638B8; TW587038B; TW200305522A

Abstract

A motorcycle, comprising a seat lock device (26) capable of locking the closed state of a passenger's seat (21) and a passenger's handle (27) installed at the rear of a body frame (1) openably supporting the seat (21), wherein the seat lock device (26) and the passenger's rail (27) are tightened together, with common bolts (31), to the body frame (1) at a position covered by the bottom plate (21a) of the seat (21), whereby since the seat lock device (26) is fitted to the body frame (1) together with the passenger's rail (27), the structure of the motorcycle can be simplified.

Description

FIELD OF THE INVENTION The present invention relates to a seat lock device and a grab rail mounting structure for a motorcycle.

According to the present invention, a seat lock device capable of opening the seat in a closed state, and a gravure grippable by an occupant are attached to a rear portion of a vehicle body frame that supports a passenger seat so as to be able to open and close. The present invention relates to a seat lock device and a mounting structure of a grab rail for a motorcycle.

Background art

In the conventional structure for mounting a seat lock device and a grab rail on a motorcycle, the seat lock device is mounted on a grab rail supported by the vehicle body frame (see, for example, Japanese Utility Model Publication No. 5-37971). .

With the conventional structure described above, a special bracket for mounting the seat lock device had to be welded to the grab rail, which had the disadvantage of high manufacturing costs.

Disclosure of the invention

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and the structure is simplified and extended by mounting a seat lock device together with a grab rail on a vehicle body frame without providing a bracket dedicated to the seat lock device. An object of the present invention is to provide a seat lock device and a grab rail mounting structure for a motorcycle, which can reduce manufacturing costs.

In order to achieve the above object, the present invention provides a seat lock device that can lock a closed state of a seat at a rear portion of a vehicle frame that supports a seat for opening and closing, and a grab rail that can be gripped by an occupant. In the mounting structure of the seat lock device and the grab rail in the motorcycle, the first case is that the seat lock device and the grab rail are jointly fastened to the vehicle body frame by a common port at a location covered by the seat bottom plate. The feature of.

According to this first feature, it is not necessary to provide a bracket dedicated to the seat lock device. In addition, the seat lock device can be attached to the body frame together with the drap rail, which can contribute to simplifying the structure and consequently reducing manufacturing costs.

According to the present invention, in addition to the first feature, the grab rail is formed integrally with a pair of right and left barriers which are arranged directly below the bottom plate of the seat in a closed state and opposed to each other with the seat lock device interposed therebetween. This is the second feature.

According to the second feature, mischief for the seat lock device can be prevented by the pair of right and left barriers. Moreover, since the barrier is integrated with the grab rail, the number of parts does not increase.

BRIEF DESCRIPTION OF THE FIGURES

Fig. 1 is a side view of a motorcycle having a seat lock device and a grab rail mounting structure of the present invention, Fig. 2 is an enlarged side view of the rear part of the motorcycle, and Fig. 3 is a side view showing a rear part of a body frame of the motorcycle. , Fig. 4 is a longitudinal side view showing the area around the front end of the occupant seat, Fig. 5 is a longitudinal side view showing the area around the rear end of the seat, and Fig. 6 is the seat removed. Fig. 7 is a cross-sectional view taken along the line 7-7 in Fig. 6, Fig. 8 is an exploded perspective view of a seat lock device and a grab rail, and Fig. 9 is a vertical side view of a front end mounting portion of a rear fender. , Fig. 10 is an enlarged sectional view taken along the line 10--10 in Fig. 2, Fig. 11 is an enlarged sectional view taken along the line 11--11 in Fig. 5, and Fig. 12 is an enlarged sectional view taken along the line 12--12 in Fig. 2. Fig. 13, Fig. 13 is an enlarged sectional view taken along the line 13-13 in Fig. 2, Fig. 14 is an enlarged sectional view taken along the line 14-14 in Fig. 2, and Fig. 15 is a 15-1 5 is an enlarged cross-sectional view, and FIG. 16 is an enlarged cross-sectional view taken along the line 16--16 in FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

An embodiment of the present invention will be described based on an embodiment of the present invention shown in the attached drawings. First, in FIGS. 1 to 3, the body frame 1 of the motorcycle M includes a head pipe 2 and a main tube 3 extending rearward from the upper rear surface of the head pipe 2 with a gentle downward gradient, and bent downward at an intermediate portion. And a down tube 4 extending rearward from the lower rear surface of the head pipe 2 with a steep descent, a pair of left and right seat rails 5 extending rearward from both left and right sides just before the bent portion of the main tube 3, and a pair of these seat rails. 5 and a pair of left and right stays 6 connecting the lower end of the main tube 3 and a front cross member welded to the front end of the seat rail 5 to connect them. 7 and a rear cross member 8 welded to the rear end of the seat rail 5 to connect the two. A front fork 10 supporting the front wheel 9 f is pivotally supported on the head pipe 2, and a rear fork 11 supporting the rear wheel 9 r is vertically swayable behind the main tube 3. A rear cushion 12 is mounted between the rear fork 11 and the seat rail 5. Engine hangers 13 and 14 are formed at the lower ends of the main tube 3 and the down tube 4, respectively, and these support the front and rear ends of the engine E. The output of the engine E is transmitted to the rear wheel 9r via a chain transmission device housed in a chain case 15 attached to the rear fork 11.

Above the engine E, a fuel tank 18 mounted and supported on the main tube 3 is arranged. At this time, the tongue piece 18a protruding from the rear end of the fuel tank 18 is fixed to the front cross member 7 by a port 28 via an elastic member 29.

An auxiliary device 19 (see Fig. 3) such as a battery and an air cleaner is provided in a triangular space surrounded by the main tube 3, the seat rail 5 and the stay 6, and a rear fender 50 attached to the seat rail 5 is provided. An accessory compartment 20 is located between the left and right seat rails 5, and a tandem seat 21 for the occupant is placed between the left and right seat rails 5 so as to cover these accessories 19 and accessory compartment 20 from above. It can be attached to and detached from the seat rail 5, that is, it can be opened and closed. Also, a pair of left and right side covers 22 that cover the accessory 19 from both the left and right sides are detachably attached to the vehicle body frame 1.

The mounting structure of the sheet 21 will be described with reference to FIGS. On the bottom plate 21 a of the seat 21, a support piece 23 inserted removably below the front cross member 7, and a plurality of elastic members 24 mounted on the left and right seat rails 5. And a lock pin 25 held by a seat lock device 26 installed on the rear cross member 8. Therefore, if the support piece 23 is inserted below the front cross member ， and the elastic support member 24 is compressed on the seat rail 5 and the lock pin 25 is locked to the seat lock device 26, the seat The seat 21 can be held on the seat rail 5 without any trouble, and the seat 21 can protect the accessory 19 and the accessory case 20 from mischief. Activate the seat lock device 26 When released, the seat 21 can be removed from the seat rail 5, and maintenance of the accessory 19 can be carried out into and out of the accessory compartment 20.

The mounting structure of the seat lock device 26 and the grab rail 27 gripped by the occupant sitting on the rear of the seat 21 will be described with reference to FIGS. The seat opening device 26 and the grab rail 27 are fastened together on the rear crossbar member 8 by a plurality of common ports 31. That is, the seat lock device 26 includes a base plate 30 having mounting holes 32 at both left and right ends. On the other hand, the gravure 27 has a U-shape in a plan view so as to surround the rear end of the seat 21, and a pair of inward brackets 33 formed at both left and right front ends thereof include: A pair of left and right mounting holes 34 corresponding to the mounting holes 32 of the base plate 30 are formed. The rear cross member 8 has a pair of left and right mounting holes corresponding to the mounting holes 32 and the front mounting holes 34. Porto 3 1 of the pair is welded.

Then, first, the mounting hole 32 of the base plate 30 of the seat lock device 26 is fitted to the bolt 31, and then the front mounting hole 34 of the grab rail 27 is fitted to the port 31. The base plate 30 of the seat lock device 26 and the bracket 33 of the grab rail 27 are connected by the common poles 1, 31 and nuts 37 by screwing and tightening the nut 37 to the port 31. It can be fastened to the rear cross member 8 together. Further, the bracket 33 of the grab rail 27 includes a pair of left and right ports 38 penetrating the bracket 33 behind the left and right ports 31 and a nut 36 welded to the lower surface of the rear cross member 8. By being screwed and tightened, the rear cross member 8 is more firmly fixed.

Thus, both the seat lock device 26 and the grab rail 27 can be mounted on the rear cross member 8 of the vehicle frame 1 without providing a bracket for mounting the seat lock device 26 on the grab rail 27. This can contribute to the simplification of the structure and the reduction of manufacturing costs.

As shown in FIG. 7, a pair of left and right barriers 39 are formed on the left and right brackets 33 of the grab rail 27 so as to face each other with the sheet lock device 26 interposed therebetween. The upper end of 9 is adapted to protrude into left and right recesses 40 formed in bottom plate 21a when seat 21 is fixed in place. According to The left and right barriers 39 cooperate with the left and right side walls of the bottom plate 21a of the seat 21 to prevent mischief against the seat lock device 26. Moreover, since the barrier 39 is integrated with the grab rail 27, the number of parts does not increase.

In the seat lock device 26, a housing portion 30a is formed in the middle portion of the base plate 30 so as to protrude in a U-shape in cross section, and in the housing portion 30a, after the lock lever 41 is formed. The end is supported on the housing part 30a via the pivot 42. A lock spring 43 for urging the lock lever 41 to one side is stretched between the tip of the lock lever 41 and one end of the base plate 30 in the left-right direction. The base plate 30 is provided with a stopper 44 for limiting the rotation of the lock spring 43 in the direction of the biasing force. When the latch lever 41 comes into contact with the stopper 44, One # 1 portion of the lever 41 is made to face a guide hole 45 opened at the center of the housing portion 30a. Therefore, when the lock pin 25 of the sheet 21 is inserted into the guide hole 45, the rectangular head 25a of the lock pin 25 passes while pushing away one side of the lock lever 41. Then, the lock lever 41 rotates again to the lock pin 25 side with the urging force of the lock spring 43, and engages with the portion of the enlarged head 25a that comes into contact with the neck. 1 will be locked in place.

As shown in Fig. 2, a cylinder lock 48 is attached to a bracket 47, which is welded to the rear end of one of the seats 5 and extends downward, and an inner end of a rotor of the cylinder lock 48 is provided. An operation arm (not shown) attached to the lock lever 41 is connected to the tip of the lock lever 41 via an interlocking wire 49 (see FIG. 6). The cylinder lock 48 can be operated only by a specific key (not shown). When the key is used to unlock the cylinder lock 48, the interlocking wire 49 is pulled and the lock lever 41 is released. It can rotate against the urging force of the lock spring 43 to release the lock pin 25.

Next, the rear fender 50 that covers the upper surface of the rear wheel 9r and the accessory case 20 will be described with reference to FIGS.

As shown in FIGS. 9 and 10, the rear end 50 is fixed at its front end to a bracket 51 fixed to the stay 6 of the vehicle body frame 1 with a port 52, and the rear end is connected to a seat rail 5. It is attached to the vehicle body frame 1 by fixing it to the bracket 54, which is welded to the rear end of the vehicle, with the port 53. As shown in Fig. 5, Fig. 7 and Fig. 11, a box 55 with an open top is formed on the upper surface of this rear fender 50, and this box 55 and the top of this box are covered. In this way, the accessory box 20 is composed of the hippo-57 connected to the box 55 by the screw 56 (see FIG. 11). A lid 58 is integrally connected to the front end of the cover 57 via a flexible hinge 59 so that the front end of the accessory case 20 can be opened and closed. The accessory case 20 is arranged below the rear cross member 8 formed in a step shape.

Thus, as described above, when the seat lock device 26 is released from operation and the seat 21 is removed from the body frame 1, the lid 58 is opened and closed, and objects are put in and out of the accessory compartment 20. It can be performed.

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 of a front side cover 22f and a rear side cover 22r connected to the rear end.

In Fig. 2, Fig. 10 and Fig. 14, the rear side cover 22r engages with the locking projection 61 protruding from the inner wall in the front-rear direction with the locking hole 62 on the side wall of the rear fender 50. At the same time, the lower rear portion is fixed to the rear fender 50 with screws 63 so that the rear fender 50 is supported.

As shown in Fig. 15, on the outer surface of the front end of the rear side cover 22r, there is defined an insertion port 64 between which the rear end of the front side cover 22f is inserted. A decorative veneer 65 is attached with a locking claw 66 and a screw 67.

On the other hand, as shown in FIGS. 2, 12, and 13, the front side cover 22f has a locking projection 68 protruding from its upper front end inner wall fixed to the main tube 3. The lower front end of the bracket 69 is fixed to the bracket 71 fixed to the stay 6 by a port 73 through a distance collar 72 so that the vehicle body can be engaged. Supported by frame 1.

At this time, the rear end of the front side cover 22 f is inserted into the entrance 64 and covered with the decorative board 65, so that the appearance can be improved. Furthermore, as shown in Figs. 2 and 16, the upper middle part of the front side cover 22f and the upper front end of the rear side cover 22r are connected by screws 74, and the rigidity of the side cover 22 Is made strong. Since the joint is covered by the side wall of the bottom plate 21a of the sheet 21, the appearance is good.

In FIGS. 5, 6 and 8, the rear ends of the left and right rear side covers 22r are interconnected by a rear cover 76. The rear cover 76 is connected to the rear mouth member 8 by a port. Supported by bracket ブラケット 7 secured at 7-8. A till lamp 80 is attached to the lower part of the rear cover 76.

The present invention is not limited to the above embodiment, and various design changes can be made without departing from the scope of the gist.

Claims

The scope of the claims

1. A seat lock device (26) that can lock the closed state of the seat (21) at the rear of a body frame (1) that supports the occupant seat (21) so that the seat can be opened and closed, and a glove that can be gripped by the occupant. In the mounting structure of the seat opening device and the grabber in the motorcycle, which is attached to the rail (27),

It is confirmed that the seat lock device (26) and the grab rail (27) are jointly fastened to the vehicle body frame (1) by the common port (31) at a location covered by the bottom plate (21a) of the seat (21). The feature is the mounting structure of the seat lock device and the grab rail on the motorcycle.

2. The mounting structure for a seat lock device and a grab rail in a motorcycle according to claim 1,

The grab rail (27) is integrally provided with a pair of right and left barriers (39) disposed immediately below the bottom plate (21a) of the seat (21) in a closed state and opposed to each other with the seat lock device (26) interposed therebetween. A seat lock device and a grab rail mounting structure for a motorcycle, characterized by being formed as follows.