CN101058323A - Longitudinally slidable seat structure for both of two-wheeled/three-wheeled vehicle - Google Patents

Abstract

The operation of sliding the seat or reclining the seat back cannot be performed except when the driver wants to slide the seat or recline the seat back. Movement of the assist lever that allows the seat to slide is inhibited by interlocking locking members. The controls cannot be raised, so it is impossible to slide the seat. The engine key is inserted into the first locking mechanism and turned, causing the interlocking locking member to slide to a position allowing operation of the operator. In addition, the lever of the second locking mechanism faces the seat back reclining lever, so that the seat back reclining lever cannot rotate clockwise around the riveted bolt, and the pawl is kept in contact with any one of the first to third recesses. join. If the lever of the second locking mechanism is turned, the seat back inclination adjustment lever can be pulled out to release the seat back inclination locking state.

Description

Longitudinally slidable seat structure for two- or three-wheeled vehicles

The application of the present invention is a divisional application of the application date of March 16, 2005, the application number 2005100555896, and the title of the invention "a longitudinally slidable seat structure for two-wheeled or three-wheeled vehicles".

technical field

The present invention relates to an improvement of a longitudinally slidable seat structure installed in a two-wheel or three-wheel vehicle and a seat structure with an adjustable seat back inclination.

Background technique

From Japanese Patent Laid-Open No. 2002-145143 ( FIG. 4 ) a two-wheeled motor vehicle is known which has tandem seats which allow changing the seat position. In FIG. 4 of Japanese Patent Laid-Open No. 2002-145143, reference numeral 26 denotes a rail member, reference numeral 27 denotes a slide member, reference numeral 29 denotes an engagement member, and reference numeral 29a denotes an operation portion. The slide member 27 slidably connected to the rail member 26 can be immobilized by the engagement member 29 and can be moved by the operation portion 29a.

Unlike four-wheeled vehicles, in the case of two-wheeled motor vehicles it sometimes occurs that the driver's body A part of the seat may inadvertently come into contact with the operating portion 29a, causing the seat position to change. Therefore, even in the case of a slidable seat, it is desirable that the seat remain non-slidable except when the driver wants to slide the seat.

A two-wheeled motor vehicle with a seat with adjustable backrest inclination is also known from Japanese Utility Model Publication No. Sho 57-10948 ( FIG. 3 ). In Fig. 3 of Japanese Utility Model Publication No. Zhao 57-10948, reference numeral 2 represents a seat portion, reference numeral 7 represents a seat back inclination adjusting device, and reference numeral 15 represents a seat back, and the accompanying drawings Mark 16 represents an operating handle. The angle of the seat back 15 can be adjusted by manipulating the operating handle 16 .

Unlike four-wheeled vehicles, in the case of two-wheeled motor vehicles it sometimes occurs that the driver's body A part of the seat back will inadvertently come into contact with the operating handle 16, causing the angle of the seat back 15 to change. Therefore, even in the case of a seat with adjustable backrest inclination, it is desirable that the seat maintains the seatback inclination constant except when the driver wants to adjust the seatback inclination.

Contents of the invention

An object of the present invention is to provide a technique capable of keeping a seat from sliding except when a driver wants to slide the seat.

According to the first aspect of the present invention, there is provided a slidable seat structure for a two-wheel or three-wheel vehicle, wherein the seat is installed on the body of the two-wheel or three-wheel vehicle through a seat sliding mechanism, which can be The seat is slid in the longitudinal direction by manipulating an operating member mounted on the seat slide mechanism, and a slide lock mechanism is provided in the vehicle separately from the operating member, which is adapted to prevent the seat from moving longitudinally.

According to the second aspect of the present invention, the slide lock mechanism can be locked and unlocked by a key that allows an engine mounted in a vehicle to be started.

According to a third aspect of the present invention, the vehicle body is provided with a seat catcher, the seat is provided with a striker and configured to be locked to the vehicle body, and the slide locking mechanism is provided with an interlocking locking member that is Keeping the slide lock mechanism in its locked position keeps the seat in its locked position.

According to the fourth aspect of the present invention, the manipulation member is provided on the left side of the vehicle body, and the key is inserted into and removed from the lock mechanism provided in the slide lock mechanism located on the right side of the vehicle body.

According to a fifth aspect of the present invention, the interlocking locking member is constructed so that it can be moved between two positions in the lateral direction of the vehicle body by turning a key, wherein, at one position, the interlocking locking member The locking member disables the operation of the operating member mounted on the seat sliding mechanism and the operation of the operating member for removing the seat, and in another position enables both operations.

According to the first aspect of the present invention, the slide lock mechanism for immobilizing the seat in the longitudinal direction is mounted on the vehicle separately from the operating member to lock or release the slide of the seat. Since the seat cannot be moved in the longitudinal direction by the slide lock mechanism, the seat can be kept non-slidable except when the driver wants to slide the seat. Therefore, even when external force is applied to the manipulator, there is no fear of the seat slipping, and the seat position desired by the driver can be maintained.

According to the second aspect of the present invention, it is possible to lock and unlock the seat slide by a key that allows the engine installed in the vehicle to be started. After the engine is stopped and the key is removed from the keyhole, the key can be used to unlock the seat slide. That is, unlocking is predicated on stopping the engine. Since the key can be shared for two purposes in this way, it is possible to prevent the seat from slipping while the vehicle is running.

According to the third aspect of the present invention, the seat lock for prohibiting opening of the seat from the side of the vehicle body and the slide lock for preventing the seat from sliding in the longitudinal direction can be simultaneously performed by the interlocking lock member as a common member. Therefore, since a single element is commonly used for two purposes, it is possible to reduce the number of parts and thereby reduce manufacturing costs.

In addition, by using a single key operation, the driver can perform two operations, one of which is to open the seat from the side of the vehicle body, and the other is to slide the seat in the longitudinal direction. Therefore, operations can be unified, and operability is improved.

According to the fourth aspect of the present invention, the manipulation member is provided on the left side of the vehicle body, and the key is inserted into and removed from the lock mechanism in the slide lock mechanism provided on the right side of the vehicle body. Since many drivers find it easier to use the right hand, smooth driving can be ensured by providing key-related components on the right side of the vehicle body that can perform various operations and by providing controls that can be easily operated on the left side of the vehicle body. operate.

According to a fifth aspect of the present invention, the interlocking locking member is configured to be movable in a lateral direction of the vehicle body by turning a key. Since the interlocking locking member does not protrude in the longitudinal direction of the vehicle body, it is easy to secure a space in the longitudinal direction of the vehicle body.

It is also an object of the present invention to provide a technique that can keep the seat non-adjustable for backrest inclination except when the driver wants to recline the seatback.

According to a sixth aspect of the present invention, there is provided a seat structure for a two-wheeled or three-wheeled vehicle, wherein the seat back is installed on a vehicle mounted on the two-wheeled or three-wheeled vehicle through a seat back inclination adjustment mechanism. on the seat in the body, and adjust the angle of the seat back by manipulating the seat back reclining lever, wherein the locking mechanism for making the angle adjustment of the seat back impossible is separated from the seat back reclining lever ground setting.

According to the seventh aspect of the present invention, the locking mechanism can perform locking and unlocking operations by a key that starts an engine installed in the vehicle.

According to the eighth aspect of the present invention, the locking mechanism is provided on the right side of the vehicle body so that the key can be inserted into and removed from the locking mechanism in the lateral direction of the vehicle body.

According to a ninth aspect of the present invention, the seat back tilt adjustment mechanism includes: a base bracket fixed on the side of the vehicle body and having a plurality of recesses; a swing bracket fixed on the seat back; a seat back tilt adjustment mechanism having a pawl; the adjustment lever, which snaps into and out of one of the recesses in the same plane as the base bracket; the link plate, which sandwiches the base bracket and seatback tilt adjustment lever between it and the swing bracket, and While being supported together with the swing bracket in a pivotable manner relative to the base bracket via a shaft, the seat back reclining adjustment lever is pivotally supported via a shaft; and is connected to the seat back reclining A spring between the adjustment lever and the connecting plate is elastically limited to pivotal movement of the seat back reclining lever, the seat back reclining lever is integrally provided with a protruding portion, and the locking mechanism is supported by the swing bracket and has A lever linked to the rotation of a key inserted into the locking mechanism, the lever can be moved by engagement with the protrusion to a position allowing and prohibiting pivotal movement of the seat back reclining lever.

According to the sixth aspect of the present invention, the lock mechanism for making the angle of the seat back unadjustable is provided separately from the seat back inclination adjustment lever. Therefore, even when an external force acts on the seat back reclining lever or when a large external force is applied to the seat back, the angle of the seat back can be maintained. That is, since the seat back reclining mechanism can be locked by the lock mechanism, the seat back reclining function can be fixed except when the driver wants to recline the seat back.

According to the seventh aspect of the present invention, the seat back reclining mechanism can be locked and unlocked by the key that allows the engine mounted on the vehicle to be started. After the engine is stopped and the key is removed from the keyhole, the key can be used to unlock the seat back reclining mechanism. That is, in order to unlock the seat back reclining mechanism, the engine must be stopped. Since the key is thus shared for two purposes, it is possible to prevent the seat from tilting while the vehicle is running.

According to the eighth aspect of the present invention, since the locking mechanism is arranged on the right side of the vehicle body so that the key can be inserted into and removed from the locking mechanism along the lateral direction of the vehicle body, the key can be inserted and removed from the right side of the vehicle. The operation of the locking mechanism and the operation of the locking mechanism, which can facilitate the operation. In addition, when the driver performs the key insertion operation while sitting on the vehicle, there is no need to worry about starting the vehicle because the driver's right hand is away from the accelerator turning handle.

According to the ninth aspect of the present invention, the seat back can be reclined only when the key is inserted into the lock mechanism and the lever is turned to the seat back inclination-adjustable position.

Other scopes of application of the present invention can be understood from the detailed description given below. It should be understood, however, that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are given by way of illustration only since those skilled in the art can learn from the detailed description that other aspects of the present invention can be obtained from the detailed description. Various changes and improvements have been made in the spirit and scope of the .

Description of drawings

The present invention will be more fully understood from the detailed description given below and the accompanying drawings which are only illustrative and not limiting of the invention.

Figure 1 is a side view of a scooter according to the present invention;

Fig. 2 is the side view of being converted into a single-person scooter;

3 is a perspective view of a driver's seat (passenger seat lifted state) according to the present invention;

4 is a perspective view of a seat sliding mechanism according to the present invention;

Figure 5 is a perspective view of a sliding locking mechanism according to the present invention;

Figures 6(a) and 6(b) are operational diagrams of the sliding locking mechanism;

Fig. 7 is a view showing how to install the seat;

8(a) and 8(b) are combined structure and operation diagrams of the seat catcher according to the present invention;

Fig. 9 is a view showing how to install the combined passenger seat and seat back according to the present invention;

Fig. 10 is an exploded view of the seat back tilt adjustment mechanism according to the present invention;

11 is a perspective view of a seat back reclining adjustment mechanism according to the present invention;

12(a) and 12(b) are operation diagrams of the seat back tilt adjustment mechanism according to the present invention;

13(a) and 13(b) are schematic diagrams of seat back inclination locking or seat back inclination unlocking operation in the present invention;

14 is a view showing the rear structure of the driver's seat;

Figures 15(a) and 15(b) are schematic views of a fuel filler cap installed in a scooter; and

Fig. 16 is a view explaining the operation of the fuel filler cap shown in Fig. 15(b).

Detailed ways

The present invention is described below with reference to the accompanying drawings. The drawings should be viewed in the direction indicated by the reference numerals. A scooter will be described below as an example of a two- or three-wheeled vehicle.

Fig. 1 is a side view of a scooter according to the present invention. Depending on the basic structure of the scooter 10 as a two-wheeled or three-wheeled vehicle, a steering handle 13 is steerably mounted on a head pipe 12 in a front portion of a body frame 11 . Front wheel 15 and front fender 16 are fixed on the front fork 14 that is connected with steering handle 13. Brake operating members 20L and 20R (L represents the left side with respect to the driver, R represents the right side) are provided at left and right end portions of the handlebar 13, respectively.

An independent frame 18 is mounted on the vehicle body frame 11 . The headlamp 19 and the turn signal lamp 21 are mounted on this separate frame 18 . The pedals 22 are mounted on a bottom tube 34 extending from the down tube 17 . The power unit 23 is fixed to the rear of the vehicle body frame 11 in a manner to be swingable in the vertical direction. Rear wheels 24 are fixed to the rear of the power unit 23 . A driver's seat 25 is arranged inclined upward on the front side of the rear wheel 24 . A combined passenger seat and seat back 26 is disposed above the rear wheels 24 . Thus, the vehicle shown is a lightweight vehicle that allows both a driver and a passenger to ride thereon.

In the drawings, reference numeral 27 denotes a steering column cover, reference numeral 28 denotes a side cover, reference numeral 29 denotes a rear shock absorber, reference numeral 30 denotes a passenger pedal, and reference numeral 31 denotes a bracket, Reference numeral 32 denotes a grab bar.

In addition, reference numeral 27a denotes a main switch mounting portion, which is provided on the right side (on the rear side in the figure) with respect to the central axis in the vehicle body longitudinal direction. Therefore, the insertion and turning operations of the master key are usually performed with the right hand.

Figure 2 is a side view of a scooter according to the invention, which has been modified to accommodate a single driver. Since its basic configuration is the same as that in FIG. 1 , the same reference numerals as in FIG. 1 will be used and their descriptions will be omitted. According to this modified vehicle, the combined passenger seat and seat back 26 are erected to form the seat back, that is, the seat back for the driver M. As shown in FIG. A piece of luggage 33 such as a tent is loaded on the front of the independent frame 18 .

Other features of this scooter are that the steering bar 13, the grab bar 32 and the independent frame 18, the down tube 17, the bottom tube 34 extending from the down tube 17 and the rear frame 35 are exposed.

In conventional scooters, the body frame is covered by a body cover so that a larger portion of the body frame is not exposed. In contrast, in the present invention, most of the vehicle body frame is exposed to exhibit an appearance characteristic that has not been hitherto.

In FIG. 2 , He denotes a helmet, reference numeral 37 denotes a meter device, reference numeral 38 denotes an air cleaner, and reference numeral 39 denotes a cargo rack or a storage tray.

Fig. 3 is a perspective view showing a driver's seat (passenger seat in a raised posture) according to the present invention. By lifting the combined passenger seat and seat back 26, the driver's seat 25 functions as a seat with a seat back. Details thereof A seat back reclining mechanism 90 to be described later is disposed on the right side with respect to the longitudinal axis W of the vehicle body. The angle of the combined driver's seat and seat back 26 can be changed by actuating the seat back inclination adjustment mechanism 90 , for example, can be reclined.

In FIG. 3 , the cargo rack 39 and grab bar 32 are shown mounted on the rear frame 35 . The cargo rack 39 is formed of an uneven resin plate or a light metal plate. Compared with flat slabs, in the case of non-flat slabs, its section modulus can be greatly increased, and a large amount of cargo can be placed on it.

Below the front edge of the driver's seat 25 are provided an operating member 47 as a part of a slide lock mechanism (to be described in detail later), a first lock mechanism 56 and an unlock button 80 . The unlock button 80 is used when the driver's seat 25 is removed upward from the vehicle body.

The driver (symbol M in FIG. 2 ) on the driver's seat 25 releases the accelerator to stop the vehicle, and then turns the key 84 inserted into the main switch (27a in FIG. 27 ) with his right hand to the engine stop position , and pull out the key 84 from the main switch. Then, the driver inserts the extracted key into the first lock mechanism 56 and turns it in the unlocking direction. This series of operations is performed continuously by the right hand, the details of which will be described later.

Since the manipulation member 47 is arranged on the left side of the vehicle body, the driver M can operate the manipulation member 47 with his left hand. Therefore, in FIG. 2, the driver M can perform the seat slide operation by actuating the right-hand brake operating member 20R.

Since the first lock mechanism 56 is provided on the right side and the manipulation member 47 is provided on the left side, both right and left hands can be effectively used, so that operability can be greatly improved. In addition, since the seat slide operation can be performed with the brake applied, it can be operated in a stable state. Also, since the key 84 is common, the seat slide operation can be performed while the engine is stopped. Furthermore, since the key 84 is common, there is no need to provide a plurality of keys, so that the number of parts can be reduced and operability can be improved.

Fig. 4 is a perspective view of a seat sliding mechanism employed in the present invention. The seat slide mechanism 40 includes left and right rail members 41L, 41R, both of which are fixed to the vehicle body. Left and right sliders 42L, 42R are slidably mounted on rail members 41L, 41R. A V-shaped or U-shaped transverse tube 43 is carried on the sliders 42L and 42R. The toothed member 44 is mounted on the left rail member 41L. The long bar 46 extends in the longitudinal direction of the vehicle body and is provided with a pawl 45 that engages with the toothed member 44 . A manipulation piece 47 is formed at the front end of the long rod 46 . The torsion spring 49 plays a role in making the manipulation member 47 return to its original position.

When the manipulation member 47 is raised or turned as indicated by the arrow, the pawl 45 is disengaged from the toothed member 44, and the sliders 42L and 42R become movable in the horizontal direction. When the hand holding the operating piece 47 is released so that the operating piece 47 returns (the operating piece returns under the action of the spring 49), the pawl 45 is engaged with the toothed member 44, and the sliders 42L and 42R are as now The same is locked and rendered immobile.

Regarding the hook 48R provided on the right slider 42R, the seat back reclining mechanism 90 , the hook 48L provided on the left slider 42L, and the V-shaped or U-shaped cross pipe 43 provided at the front end The slide lock mechanism 50, their details will be described later.

Figure 5 is a perspective view of a slide lock mechanism 50 according to the present invention. The sliding locking mechanism 50 includes a bracket 51 mounted on the cross tube 43 . A transversely long interlocking locking member 53 extends along the front panel 52 of the bracket 51 . A guide member 54 is installed on the front plate 52 to guide the horizontal movement of the interlocking locking member 53 . A support 55 protrudes from the guide member 54 to support an unlock button 80 as a manipulation member. The first locking mechanism 56 is mounted on a cowl (not shown) or the front panel 52 and is oriented in the longitudinal direction of the vehicle body. An auxiliary bar 57 extends from the longitudinal bar 46 and passes through the front panel 52 .

6(a) and 6(b) are operational diagrams of the slide locking mechanism according to the present invention. The interlocking locking member 53 is a laterally long rectangular plate, and is provided with one inclined side portion 58 at its front end (right end in the figure). The interlocking locking member 53 is also provided at the center with a substantially elliptical hole 59 that is laterally long and includes a small diameter portion 64 and a large diameter portion 65 . The interlocking locking portion 53 is also provided with a longitudinally elongated hole 61 at its base. A pin 63 extends to the rear side of the view from a lever 62 mounted on the first lock mechanism 56 and fitted in the elongated hole 61 .

FIG. 6( a ) shows a slide-locked state in which the interlocking locking member 53 is located on the auxiliary lever 57 , and therefore, the manipulation member 47 indicated by phantom lines cannot be lifted. If the operating member 47 cannot be lifted, the sliding lock state continues, and the seat cannot be moved back and forth. In order to release the slide locked state, it is necessary to turn the lever 62 of the first lock mechanism 56 clockwise in the figure.

The connecting rod 81 extends through the generally oval hole 59 . Although the connecting rod 81 will be described in detail later, the connecting rod 81 is located in the small-diameter portion 64 of the substantially elliptical hole 59 . Therefore, when the large-diameter boss member 78 abuts against the rear side of the interlocking locking member 53, the connecting rod 81 can no longer be drawn out (outward of the paper in the figure).

Fig. 6(b) shows a state in which the slide lock state can be released. More specifically, the interlocking locking member 53 has moved only a distance indicated by arrow A under the action of the first locking mechanism 56 . Thus, the inclined side is moved away from the auxiliary rod 57 . This causes the auxiliary lever 57, the operating member 47 and the longitudinally long lever 46 to become rotatable, as indicated by the arrow B. The inclined side portion 58 of the interlocking locking member 53 is formed substantially along the turning direction of the auxiliary lever 57 .

In this state, the connecting rod 81 is located in the large diameter portion 65 of the substantially elliptical hole 59 . Since the large-diameter portion 65 has a larger diameter than the boss member 78, the connecting rod 81 can be further drawn out (outward of the paper in the figure).

The seat slide mechanism 40 and the slide lock mechanism 50 have been described above. The following describes how to remove the seat from the vehicle body.

Figure 7 shows how to install the seat according to the invention. First, the inserts 66L and 66R provided at the lower position on the rear of the driver's seat 25 are inserted (as indicated by arrow C) into the hooks 48L and 48R provided on the vehicle body side. The striker 67 provided at the lower position in front of the driver's seat 25 is inserted (as indicated by arrow D) into the seat catcher 70 provided on the side of the vehicle body. In this way, the driver's seat 25 can be mounted on the vehicle body.

Details of the seat catcher 70 will be described below. 8(a) to 8(d) are combined configuration and operation diagrams of the seat catcher according to the present invention.

In FIG. 8(a), the seat catcher 70 includes a through hole 72 formed in the horizontal plate 71 of the bracket 51 for passing the catcher 67 therethrough. The sub-bracket 74 is mounted on the lower surface of the horizontal plate 71 and has a recess 73 for receiving the striker 67 therein. The wedge member 75 is horizontally movably supported by the sub-frame 74 so that the member can be snapped into or out of the recess 73 . The first spring 76 is provided to push the wedge member 75 to the right in the drawing. One end of the connecting rod 81 has a long hole 77 . The boss member 78 is provided at the central position of the connecting rod 81, and the unlock button 80 is located at the opposite end thereof. A second spring 82 is provided to push the connecting rod 81 to the right in the figure. Reference numeral 83 denotes a pin extending from the base portion of the wedge member 75 . The pin 83 is fitted in the long hole 77 of the connecting rod 81 .

In such a state, even if an attempt is made to pull the unlock button 80 to the left in the drawing, it is impossible to pull the button 80 because the boss member 78 abuts against the interlock lock member 53 . However, due to the presence of the elongated hole 77, the wedge member 75 can be moved to the left in the figure. Thus, the striker 67 is moved downwards towards the recess 73 .

FIG. 8( b ) shows a state in which, due to the presence of the elongated hole 77 , the wedge member 75 has been moved to the left in the figure by the striker 67 .

In Fig. 8 (c), when the striker 67 moves downward to a predetermined position, the wedge member 75 moves to the right side in the figure under the action of the first spring 76, and the striker is prevented by the wedge member 75. 67's lift. Small motorcycles are usually used in this state. Even if an attempt is made to pull the unlock button 80 , it is impossible to pull the button 80 because the boss member 78 abuts against the interlock lock member 53 . In order to unlock, the following procedure must be taken.

In FIG. 5 , when a key (master key) 84 for starting the engine is inserted into the first locking mechanism 56 and turned in a predetermined direction, the interlocking locking member 53 moves only as shown in FIG. 6( b ). A distance shown by the arrow A, so that the large diameter portion 65 of the generally oval hole 59 is placed on the connecting rod 81, so that the connecting rod 81 can be pulled out. Then, in FIG. 8( d ), the unlocking button 80 is pulled (shown by arrow E) to move the wedge-shaped member 75 to the left in the figure through the connecting rod 81 . Accordingly, the striker 67 can be released, and the driver's seat 25 can be raised. The key 84 can only be inserted and withdrawn when the first locking mechanism 56 is in its locked state.

The following description is now provided with respect to the seat back reclining mechanism 90 .

FIG. 9 is a view showing how to install the combined passenger seat and seat back according to the present invention. The combined passenger seat and seat back 26 is mounted to the right slider 42R by the seat back reclining mechanism 90 and fixed to the rear end of the cross tube 43 pivotable by the pin 85 . Therefore, the installation angle of the combined passenger seat and seat back 26 can be changed.

The seat back reclining mechanism 90 can be locked and unlocked with the key 84 . For example, in FIG. 2, the driver M can continuously perform a series of operations with one hand, including stopping the accelerator to stop the vehicle, turning a key (not shown) in the main switch installation part 27a with the right hand to stop the engine, turning the The key is pulled out, the key is inserted into the locking mechanism 92 shown in FIG. 9 while holding the key with the right hand, the key is turned to adjust the angle of the combined passenger seat and seat back 26, and the key is turned in the opposite direction 84 to lock the seat back tilt adjustment mechanism 90.

The seat back reclining mechanism 90 for the combined passenger seat and seat back 26 is a mechanism covered by a lower cover 91 and an upper cover 93 provided with a second lock mechanism 92 . In the following description, the internal mechanism will be explained with the covers 91 and 93 removed.

Fig. 10 is an exploded view of the seat back reclining adjustment mechanism according to the present invention. The seat back reclining mechanism 90 includes, as its main parts, a base bracket 94 fixed on the side of the vehicle body, a first recess 95, a second recess 96 and The third recess 97 . The seat back reclining lever 100 has a pawl 98 that engages with any one of the first to third recesses 95 to 97 . The swing bracket 101 is attached to the side of the combined passenger seat and seat back 26 . The stopper 102 is formed by bending a part of the swing bracket 101 . Lugs 103 protrude from the swing bracket 101 to support the second locking mechanism 92 . The connection plate 104 is disposed opposite to the swing bracket 101 . The spring 105 is anchored at one end to the web 104 . Also included are two rivet pins 106 and 107 .

One rivet pin 106 passes through a hole 108 formed in the seat back reclining lever 100 , while the other rivet pin 107 passes through a hole 109 formed in the base bracket 94 . The swing bracket 101 and the connecting plate 104 sandwich the base bracket 94 and the seat back reclining lever 100 therebetween. Through the two ends of the caulking rivet pins 106 and 107, the swing bracket 101 and the connection plate 104 are connected with the rivet pins and formed into one body.

This assembled state is shown in FIG. 11 . 11 is a perspective view of the seat back reclining mechanism according to the present invention, wherein the combined passenger seat and seat back 26 are connected to the swing bracket 101, and the opposite ends of the spring 105 are anchored to the seat back Tilt adjustment lever 100 on. The second locking mechanism 92 is operable by the key 84 used to start the engine.

12(a) and 12(b) are operation diagrams of the seat back reclining adjustment mechanism according to the present invention. In FIG. 12( a ), when the seat back reclining lever 100 is rotated clockwise around the upper rivet pin 106 , the pawl 98 engaged with the first concave portion 95 is disengaged. Once the seat back inclination adjusting lever 100 abuts against the stopper 111 formed on the upper part of the connecting plate 104, it cannot be rotated clockwise in the figure.

In the state of FIG. 12( a ), the swing bracket 101 can rotate counterclockwise around the lower rivet pin 107 . The swing bracket 101 cannot rotate clockwise because the stopper 102 abuts against the stopper receiving surface 112 on the base bracket 94 side. That is, the upper limit of the combined passenger seat and seat back 26 may be defined by the stop 102 and the stop receiving surface 112 (see also FIG. 11 ) together.

Fig. 12(b) shows such a state, wherein, since the swing bracket 101 rotates counterclockwise in the figure around the lower rivet pin 107 and the seat back tilt adjustment lever 100 also rotates counterclockwise together with the swing bracket, The pawl 98 faces the third recess 97 . If the seat back reclining adjustment lever 100 is released, the pawl 98 is inserted into the third concave portion 97 under the pulling action of the spring 105, thereby forming a locked state of the seat back reclining. The same is true for the second recess 96 .

By operating the seat back tilt adjustment lever 100 to release the seat back tilt lock state, the combined passenger seat and seat back can be set to an arbitrary angle. Although the number of locking steps for seat back reclining adjustment is three in the present embodiment, it is arbitrary.

13( a ) and 13 ( b ) are views of seat back tilt locking and unlocking operations in the present invention. Fig. 13(a) shows the seat back inclination locking state, wherein the lever 113 of the second locking mechanism 92 faces the protruding portion 100a of the seat back inclination adjusting lever 100, so that the seat back inclination adjusting lever 100 cannot be rotated clockwise in the figure about rivet bolt 106, and pawl 98 remains engaged with any one of first through third recesses 95-97. Therefore, as long as the second locking mechanism 92 is in its locked state, the seat back reclining adjustment mechanism cannot assume the adjustable state of the back reclining, even if an external force is applied to the seat back reclining adjustment lever 100 .

If an attempt is made to turn the seat back reclining lever 100 clockwise in the figure around the rivet bolt 106 with a great force when the second locking mechanism 92 is in its locked position, a great force acts on the second locking mechanism 92 . Institution 92 on. This force is taken up by the lug 103 . Thus, a second locking mechanism 92 on a relatively low stiffness upper cover (93 in FIG. 9) may be provided.

Fig. 13(b) shows the seat back inclination unlocked state. In the case of turning the lever 113 of the second locking mechanism 92, the seat back reclining adjustment lever 100 can be pulled to its imaginary line position, and thus the seat back reclining lock state can be released.

Fig. 14 shows the rear structure of the driver's seat according to the present invention. The rear portion of the floor 114 of the driver's seat 25 expands upward into an enlarged portion 115 . A vertically long cutout portion 116 is formed on the enlarged portion 115, and a support pipe 117 for supporting the combined passenger seat and seat back is provided in the cutout portion 116 (see FIG. 9).

The support tube 117 shown in FIG. 14 is located at its upper limit position and is adapted to move vertically within the range of the cutout portion 116 with the inclination adjustment movement. Since the cutout portion 116 is open at its lower side, the driver's seat 25 can be removed regardless of the reclining position (as indicated by arrows F and G). Therefore, the operability of removing the seat can be improved.

15(a) and 15(b) are schematic views of a fuel filler cap provided in a scooter, wherein FIG. 15(a) shows a comparative example, and FIG. 15(b) shows the present embodiment. In FIG. 15( a ), a fuel tank 201 and a fuel supply port cover 202 are provided inside a vehicle body cover 200 . In this case, it is necessary to attach the fuel filler cap 203 to the vehicle body cover 200 . According to the background art, the fuel filler cap 203 is connected to the vehicle body cover 200 so that the fuel filler cap 203 can be opened and closed by a U-shaped hinge 204 . Previously, it was necessary to employ a U-shaped hinge 204 that protrudes farther downwards in order to avoid that when the fuel filler cap 203 is opened from its closed position shown by the solid line to its open position shown by the phantom line. abuts against the vehicle body cover 200 .

In this prior art structure, a dead zone corresponding to the U-shaped hinge 204 is formed inside the vehicle body cover 200 . If this dead zone could be eliminated, the layout of the components installed on the vehicle would be much easier.

In FIG. 15( b ), a fuel tank 122 and a reservoir tank 123 are provided inside a vehicle body cover 121 . In this case, the fuel filler cap 125 closing the opening 124 formed in the vehicle body cover 121 is mounted on the vehicle body cover 121 by using the hinge fixing part 127 and the hinge swing part 129 which are placed on the vehicle body cover 121. The body cover 121 is fixed by screws 126 , and the hinge swing part 129 is fixed on the hinge fixing part 127 in a swingable manner via a pin 128 . Since the hinge fixing portion 127 and the hinge swing portion 129 are arranged outside the vehicle body cover 121 , the space inside the vehicle body cover 121 can be increased.

Fig. 16 is a view for explaining the fuel filler cap shown in Fig. 15(b). The stopper receiving portion 131 is integrally formed with the hinge fixing portion 127 at a position close to the pin 128 , while the stopper 132 is integrally formed with the hinge swing portion 129 at a position close to the pin 128 .

When the fuel filler cap 125 is opened around the pin 128 in the clockwise direction in the figure, the stopper 132 abuts against the stopper receiving portion 131 , so the fuel filler cap 125 stops moving. Thus, the force for opening the fuel filler cap 125 is hardly applied to the body cover side even if it is applied to the stopper 132 and the stopper receiving portion 131 . Next, by turning the filler cap 125 counterclockwise in the figure, the filler cap can be brought into the state shown in FIG. 15(b).

Reference numeral 133 denotes a hole formed in the vehicle body cover, and reference numeral 134 denotes a holder provided in the fuel filler cap 125 . By engaging the retainer 134 into the hole 133 , floating and vertical swinging of the fuel filler cap 125 can be prevented.

The present invention is not limited to the scooter described above. It can be applied to two- or three-wheeled vehicles other than scooters.

The present invention can be applied to small motorcycles and motorcycles having brake operating members and clutches on the right and left sides of the vehicle body, respectively.

In the present invention, the slide lock mechanism is not limited to a mechanism that directly locks the manipulator. It may be a mechanism that constrains the slide relative to the vehicle body. The structure and installation position of the slide lock mechanism are not particularly limited insofar as the mechanism employed prevents longitudinal movement of the seat. The means for unlocking the slide lock mechanism is not always the key used to start the engine, but can be a dedicated key.

The interlocking locking member of the present invention is described as a transversely long rectangular plate. However, the shape thereof can be changed within such a range that a member can be used to simultaneously realize the two functions of seat slide locking and prohibition of seat disassembly.

In the present invention, the locking mechanism is not limited to a mechanism that directly locks the seat back reclining lever. It could be a mechanism that restrains the swing bracket relative to the body. The structure and installation position of the locking mechanism are not particularly limited insofar as the employed mechanism prevents the angle change of the backrest. The means for operating the locking mechanism is not always the key used to start the engine, but may be a dedicated key.

While the invention has been described above, it will be obvious that the invention may be varied in many forms. Such changes should not be regarded as departing from the spirit and scope of the present invention, and all such modifications obvious to those skilled in the art will be included within the scope of the appended claims.

Claims (12)

1. A seat structure for a two-wheeled or three-wheeled vehicle, comprising: a backrest, which is installed on a seat provided on the body of a two-wheeled or three-wheeled vehicle through a seatback inclination adjustment mechanism, and the angle of the seat backrest can be adjusted by manipulating the seatback inclination adjustment lever, Wherein, the locking mechanism for preventing the angle of the seat back from being adjusted is provided separately from the seat back inclination adjustment lever. 2. The seat structure according to claim 1, wherein the locking mechanism can perform locking and unlocking operations by a key that allows an engine installed in the vehicle to be started. 3. The seat structure according to claim 1, wherein the locking mechanism is arranged on the right side of the vehicle body, so that the key can be inserted into and removed from the locking mechanism along the lateral direction of the vehicle body. 4. The seat structure according to claim 3, wherein the seat back inclination adjustment mechanism comprises: a base bracket fixed to the side of the vehicle body and having a plurality of recesses; a swing bracket fixed on the seat back; a seat back reclining lever having a detent that snaps into and out of one of said recesses on the same plane as said base bracket; a connecting plate sandwiching the base bracket and the seat back reclining lever between the connecting plate and the swing bracket and being pivotable relative to the base bracket via an axis The seat back reclining lever is pivotally supported by an axis while being supported together with the swing bracket in such a manner; and a spring connected between the seat back reclining lever and the connecting plate to elastically limit the pivotal movement of the seat back reclining lever integrally with a protruding portion, Wherein, the locking mechanism is supported by the swing bracket, and has a lever linked to the rotation of a key inserted into the locking mechanism, and the lever is movable to allow and prohibit the locking mechanism by engaging with the protrusion. The position of the pivotal movement of the seat back tilt adjustment lever. 5. A seat structure for a two- or three-wheeled vehicle, comprising: A seat mounted on the body of a two- or three-wheeled vehicle via a seat sliding mechanism, the seat being slidable in the longitudinal direction by operating an operating member mounted on the seat sliding mechanism; and The backrest installed on the seat through the seat back inclination adjustment mechanism can adjust the angle of the seat back by operating the seat back inclination adjustment lever, Wherein, a sliding locking mechanism adapted to prevent longitudinal movement of the seat is provided in the vehicle separately from the operating member, and a locking mechanism for preventing the angle of the seat back from being adjusted is separated from the seat back The tilt adjustment lever is provided separately. 6. The seat structure according to claim 5, wherein the slide lock mechanism can perform locking and unlocking operations with a key that allows an engine mounted in the vehicle to be started. 7. The seat structure according to claim 6, wherein the vehicle body is provided with a seat catcher, the seat is provided with a striker and is configured to be locked on the vehicle body, and the sliding The locking mechanism is provided with an interlocking locking member which maintains the seat in its locked state while maintaining the slide locking mechanism in its locked state. 8. The seat structure according to claim 6, wherein the operating member is arranged on the left side of the vehicle body, and the key is inserted into and removed from a locking mechanism, the locking mechanism is set In the slide lock mechanism located on the right side of the vehicle body. 9. The seat structure according to claim 7, wherein the interlocking locking member is configured to be movable between two positions in the lateral direction of the vehicle body by turning the key, wherein in one position In one position, the locking mechanism disables the operation of the operating member mounted on the seat slide mechanism and the operation of the operating member for dismounting the seat, while in the other position, both operations are disabled. can proceed. 10. The seat structure according to claim 5, wherein the locking mechanism is operable to be locked and unlocked by a key that allows an engine installed in the vehicle to be started. 11. The seat structure according to claim 5, wherein the locking mechanism is arranged on the right side of the vehicle body, so that the key can be inserted into and removed from the locking mechanism along the transverse direction of the vehicle body. 12. The seat structure according to claim 11, wherein the seat back tilt adjustment mechanism comprises: a base bracket secured to the side of the vehicle body and having a plurality of recesses; a swing bracket fixed to the seat back; a seat back reclining lever having a detent that snaps into and out of one of said recesses in the same plane as said base bracket; a connecting plate sandwiching the base bracket and the seat back reclining lever between the connecting plate and the swing bracket and being pivotable relative to the base bracket via an axis The seat back reclining lever is pivotally supported by an axis while being supported together with the swing bracket in such a manner; and a spring connected between the seat back reclining lever and the connecting plate to elastically limit the pivotal movement of the seat back reclining lever integrally with protruding parts, Wherein, the lock mechanism is supported by the swing bracket, and has a lever linked to the rotation of a key inserted into the lock mechanism, and the lever is movable to allow and disable the seat by engaging with the protruding portion. The position where the chair back tilt adjustment lever pivots.

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