CN110446652B

CN110446652B - Seat hinge structure for saddle-ride type vehicle

Info

Publication number: CN110446652B
Application number: CN201880019372.5A
Authority: CN
Inventors: 长山雅; 我藤匠
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2017-03-31
Filing date: 2018-02-21
Publication date: 2020-11-27
Anticipated expiration: 2038-02-21
Also published as: JPWO2018180034A1; WO2018180034A1; JP6748295B2; CN110446652A; MY183522A; PH12019502219A1; BR112019020032A2

Abstract

The present invention relates to a seat hinge structure of a saddle-ride type vehicle in which a seat 9 on which a passenger sits is supported by a hinge mechanism 50 so as to be openable and closable on a vehicle body side, wherein the hinge mechanism 50 includes: a vehicle-body-side hinge portion 51 attached to the vehicle-body-side member 13; a seat side hinge portion 52 supported at one end of the vehicle body side hinge portion 51 so as to be rotatable by a predetermined angle θ 2 with respect to the vehicle body side hinge portion 51; a first arm portion 58 supported by the other end of the seat-side hinge portion 52 so as to be rotatable by a predetermined angle θ 1 with respect to the vehicle-body-side hinge portion 51; a second arm portion 60 pivotally supported by the first arm portion 58 to be rotatable; and a link portion 61 that connects the second arm portion 60 and the seat-side hinge portion 52, wherein the seat-side hinge portion 52 and the first arm portion 58 are connected via the link portion 61 rotatably supported by the seat-side hinge portion 52 and the second arm portion 60 rotatably supported by the first arm portion 58, and a connection position 64 of the second arm portion 60 and the link portion 61 is provided so as to be relatively movable by rotation of the seat-side hinge portion 52 by the predetermined angle θ 1 or more of the seat-side hinge portion 52.

Description

Seat hinge structure for saddle-ride type vehicle

Technical Field

The present invention relates to a seat hinge structure for a saddle-ride type vehicle.

Background

Patent document 1 describes the following configuration: the protruding portion of the seat side hinge is brought into contact with the top portion (protruding portion) of the overlapped leaf spring provided in the vehicle body side hinge, and the seat is held in an open state.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 6034497

Disclosure of Invention

Problems to be solved by the invention

In the above-described patent document 1, in the process of opening the seat, the protruding portion of the seat side hinge needs to be brought into contact with the top portion (protruding portion) of the leaf spring bent in the く shape and bent, and therefore, it is necessary to improve the elastic mounting rigidity of the seat and the hinge with respect to the leaf spring. Further, since the closed state of the seat is maintained by the force of the leaf spring, the seal rubber needs to be thickened in order to maintain the sealing property between the seat and the trunk. Further, the opening degree of the seat cannot be adjusted stepwise according to the application.

The present invention has been made in view of the above problems, and an object of the present invention is to realize a seat hinge structure for a saddle-ride type vehicle, which can facilitate the operation and the opening degree adjustment when opening and closing a seat without increasing the mounting rigidity of the seat and a hinge.

Means for solving the problems

In order to solve the above problems and achieve the object, a first aspect of the present invention is a seat hinge structure of a straddle-type vehicle in which a seat 9 on which a passenger sits is supported by a hinge mechanism 50 so as to be openable and closable on a vehicle body side, wherein the hinge mechanism 50 includes: a vehicle-body-side hinge portion 51 attached to the vehicle-body-side member 13; a seat side hinge portion 52 supported at one end of the vehicle body side hinge portion 51 so as to be rotatable by a predetermined angle θ 2 with respect to the vehicle body side hinge portion 51; a first arm portion 58 supported by the other end of the seat-side hinge portion 52 so as to be rotatable by a predetermined angle θ 1 with respect to the vehicle-body-side hinge portion 51; a second arm portion 60 pivotally supported by the first arm portion 58 to be rotatable; and a link portion 61 that connects the second arm portion 60 and the seat-side hinge portion 52, wherein the seat-side hinge portion 52 and the first arm portion 58 are connected via the link portion 61 rotatably supported by the seat-side hinge portion 52 and the second arm portion 60 rotatably supported by the first arm portion 58, and a connection position 64 of the second arm portion 60 and the link portion 61 is provided so as to be relatively movable by rotation of the seat-side hinge portion 52 by the predetermined angle θ 1 or more of the seat-side hinge portion 52.

In addition to the first aspect, in the second aspect of the present invention, when the seat side hinge portion 52 is rotated to the first angle θ 1 in the first direction S1, the rotation of the first arm portion 58 in the first direction S1 is restricted, the link portion 61 rotates the second arm portion 60 in the second direction S2 to hold the seat side hinge portion 52 at the first angle θ 1, and when the seat side hinge portion 52 is further rotated from the first angle θ 1 in the first direction S1, the link portion 61 moves relative to the second arm portion 60 to hold the seat side hinge portion 52 at the second angle θ 2.

In the third aspect of the present invention, in addition to the second aspect, the second arm portion 60 is provided with a linear shaft hole 60a in which the link portion 61 is slidably engaged, and when the seat-side hinge portion 52 is rotated from the first angle θ 1 further in the first direction S1, the link portion 61 slides along the shaft hole 60 a.

In addition to the third aspect, the fourth aspect of the present invention provides the first arm portion 58 with a first stopper 62 that restricts rotation in the first direction S1, and the seat side hinge portion 52 with a second stopper 63 that restricts rotation in the first direction S1 to the second angle θ 2.

In addition to any one of the first to fourth aspects, a fifth aspect according to the present invention is such that a storage portion 40 capable of storing an article 100 is provided on a lower surface of the seat 9, and the storage portion 40 is disposed so as to partially overlap with a mounting portion 52a of the seat side hinge portion 52 with respect to the seat 9.

Effects of the invention

According to the present invention, the operation and the adjustment of the opening degree of the seat can be easily performed when the seat is opened and closed without increasing the mounting rigidity of the seat and the hinge.

More specifically, according to the first aspect of the present invention, when the seat is opened and closed, the spring force is applied around the rotation shaft of the first arm portion of the vehicle body side hinge portion, so that the seat can be lifted up with the weight of the seat reduced by the spring force when the seat is opened, and conversely, the seat can be pushed down with a small force against the spring force by the weight of the seat when the seat is closed. Further, the opening degree of the seat can be adjusted in stages by applying a necessary spring force to the periphery of the rotation shaft of the first arm portion of the vehicle body side hinge portion. Further, since a thinner member than the conventional one can be used as the sealing rubber 36 for sealing between the seat back and the trunk in the closed position of the seat without increasing the mounting rigidity of the seat and the hinge mechanism, the member cost can be suppressed.

Further, according to the second to fourth aspects of the present invention, since the state in which the seat 9 is opened can be adjusted in two stages according to the use and the form of the article to be taken in and out of the luggage, convenience is improved. Further, since the seat can be lifted more easily than before and the open state can be maintained, the opening degree of the seat can be easily adjusted.

Further, according to the fifth aspect of the present invention, the space on the lower surface of the seat can be effectively used by partially overlapping the hinge mechanism and the housing portion.

Other features and advantages of the present invention will become apparent from the following description, which proceeds with reference to the accompanying drawings. In the drawings, the same components are denoted by the same reference numerals.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a side view showing the entire appearance of the motorcycle according to the present embodiment.

Fig. 2 is a left rear view of the motorcycle of the present embodiment, showing an external appearance of the seat in the first opening position state.

Fig. 3 is a left rear view of the motorcycle of the present embodiment, and is an external view showing the seat in the second opening position state.

Fig. 4 is an external view showing a rear part of a vehicle body of the motorcycle according to the present embodiment.

Fig. 5 is an enlarged view of the article storage portion on the lower surface of the seat in fig. 3, and is a view showing a state where no article is stored.

Fig. 6 is an enlarged view of the article storage portion on the lower surface of the seat in fig. 3, and is a view showing a state in which an article is stored.

Fig. 7 is a sectional view of a seat front end portion including the seat hinge mechanism and the article storage portion of the present embodiment.

Fig. 8A is a side view showing a state of the hinge mechanism when the seat of the present embodiment is in the closed position.

Fig. 8B is a side view showing a state of the hinge mechanism when the seat of the present embodiment is at the first opening position.

Fig. 8C is a side view showing a state of the hinge mechanism when the seat of the present embodiment is at the second opening position.

Fig. 9A is a cross-sectional view of i-i of fig. 8B.

Fig. 9B is a sectional view ii-ii of fig. 8B.

Fig. 10A is a diagram showing a seat latch mechanism according to the present embodiment.

Fig. 10B is a diagram showing a state in which the seat latch mechanism of the present embodiment is covered with the seat latch cover.

Fig. 11 is a diagram showing a positional relationship among the seat lock cover, the armrest, and the tail light unit of the seat lock mechanism according to the present embodiment.

FIG. 12A is a cross-sectional view of iii-iii of FIG. 4.

Fig. 12B is an enlarged view of fig. 12A.

Fig. 13A is an external view of the armrest provided at the rear portion of the vehicle body according to the present embodiment.

Fig. 13B is a side view of the armrest provided at the rear portion of the vehicle body according to the present embodiment.

Fig. 13C is a side sectional view of the armrest provided at the rear portion of the vehicle body according to the present embodiment.

Fig. 14A is an external view of the seat latch cover of the seat latch mechanism according to the present embodiment as viewed from the front.

Fig. 14B is an external view of the seat latch cover of the seat latch mechanism according to the present embodiment as viewed from the back.

Detailed Description

Hereinafter, an embodiment in which the saddle-ride type vehicle of the present invention is applied to a scooter type motorcycle will be described in detail with reference to the drawings.

[ integral constitution ]

First, the overall configuration of the motorcycle according to the present embodiment will be described with reference to fig. 1 to 4.

Fig. 1 is a side view showing the entire appearance of the motorcycle according to the present embodiment. Fig. 2 is a left rear view of the motorcycle of the present embodiment, and is an external view showing a state where the seat is at the first opening position. Fig. 3 is a left rear view of the motorcycle of the present embodiment, and is an external view showing a state where the seat is at the second opening position. Fig. 4 is an external view showing a rear part of a vehicle body of the motorcycle according to the present embodiment.

As shown in fig. 1 to 4, the motorcycle 1 of the present embodiment is a scooter type motorcycle, and a front portion of a vehicle body is covered with a meter visor (meter visor)21, a front inner cover 22, and left and right front side covers 23, respectively, so that other vehicle body components than a front wheel (including a brake disc) 2, a front fender 2a covering an upper portion of the front wheel 2, a pair of left and right front forks 3 supporting the front wheel 2, a handlebar H, and the like are not visible from the outside.

The vehicle body center portion and the vehicle body rear portion are also covered with the left and right pedal covers 24, the left and right pedal side covers 25, and the left and right rear side covers 26 so that the vehicle body components other than the rear wheel 4, the rear fender 4a covering the upper portion of the rear wheel 4, the left and right pair of rear suspensions 5 supporting the rear wheel 4, the power train 6, the air cleaner 7, the muffler 8, and the like are not visible from the outside. The left and right pedal covers 24 and the pedal side covers 25 are provided with pedals 27 as pedals for passengers to place their feet. The left and right rear side covers 26 are provided to surround the seat 9. A tail lamp unit 12 including a stop lamp and a winker lamp is provided at the rear end of the left and right rear side covers 26. In addition, armrests 11 are provided on upper portions of the left and right rear side covers 26. Further, each of the cover members is made of a resin having low rigidity and elasticity.

Further, a vehicle body frame (not shown) such as a main frame and a rear frame, which forms a framework of the motorcycle 1, extends in the vehicle body front-rear direction, and the vehicle body frame is covered with the above-described cover members. Further, a seat 9 is provided in the center of the vehicle body, and a trunk 10 that can be opened and closed by the seat 9 is provided in the lower portion thereof. A battery, not shown, is disposed in the luggage case 10, and can store a storage object such as a helmet.

The seat 9 has a first seat bottom surface 31 on which a driver sits, and a second seat bottom surface 32 provided behind the first seat bottom surface 31 on which a passenger sits, and the second seat bottom surface 32 is disposed at a position higher than the first seat bottom surface 31. The seat 9 includes a cushion portion 33 that configures the first seat bottom surface 31 and the second seat bottom surface 32, and a seat bottom portion 34 that is provided on a lower surface of the cushion portion 33 and supports the cushion portion 33. The front end portion of the seat bottom plate portion 34 is supported by a hinge mechanism 50 described below so as to be openable and closable with respect to the vehicle body side member 13 connected to the vehicle body frame around the luggage compartment 10. Further, a seal rubber 36 is provided in the seat bottom plate portion 34, and the seal rubber 36 seals between the seat bottom plate portion 34 and the opening edge portion 10a of the luggage compartment 10 when the seat 9 is in the closed position. The armrest 11 is mounted so as to surround the rear portion (second seat bottom surface 32) of the seat 9. When two persons ride the vehicle, the armrest 11 functions as a grip for the passenger seated on the second seat bottom surface 32 to grip. A tail light unit 12 is provided below the armrest 11.

The seat 9 has a locked state in which the anchor portion 35 provided at the rear end portion of the seat bottom plate portion 34 is locked by a seat latch mechanism 70 described below, and an unlocked state in which the locked state is released to allow opening and closing. In the locked state, the seat 9 is locked so as not to be openable and closable by a seat lock mechanism 70 described below, and the locked state can be released by a predetermined lock release operation performed by inserting a key into a main switch (not shown) provided in the periphery of the handle cover 14. In this way, the luggage box 10 cannot be opened or closed or can be opened or closed by bringing the seat 9 into the locked state or the unlocked (unlocked) state, and therefore the user can store various things as needed.

With the hinge mechanism 50 described below, the seat 9 can be opened in two stages of the first opening position P1 and the second opening position P2 depending on the application. The first opening position P1 is, for example, a state in which the door is opened at an angle of approximately 45 ° forward from the closed position P0 around the hinge mechanism 50, and the second opening position P2 is, for example, a state in which the door is opened at an angle of approximately 80 ° forward from the closed position P0 around the hinge mechanism 50. The second opening position P2 may be opened further forward by about 35 ° from the first opening position P1.

< construction of article storage section >

Next, a detailed configuration of the article storage section provided on the lower surface of the seat according to the present embodiment will be described with reference to fig. 5 to 7 in addition to fig. 1 to 4.

A seat bottom portion 34 on the lower surface of the seat 9 is provided with an article storage portion 40 capable of storing an article 100, such as a tool storage bag or a tool storage box. As shown in fig. 7, the article storage 40 is provided in the vicinity of the hinge mechanism 50 attached to the front end of the seat bottom 34, and forms a space that is recessed toward the seat cushion 33 (upward) and is open downward. As shown in fig. 7, the article storage portion 40 is disposed such that, when viewed from the vehicle body side (in a cross section obtained by cutting the vehicle width direction center of the seat 9 in the vehicle body front-rear direction), the upper surface portion 34a of the seat bottom plate portion 34 to which the seat side hinge portion 52 of the hinge mechanism 50 described below is attached and the lower surface portion 43 of the article storage portion 40 partially overlap. The article storage unit 40 is disposed substantially at the center in the front-rear direction and the up-down direction of the vehicle body when viewed from the side of the vehicle.

The article storage 40 has an upper surface portion 41, a front surface portion 42, a lower surface portion 43, and a side surface portion 44 when viewed from the side of the vehicle body with the seat 9 in a closed state, and a pair of left and right plate-like holding portions 45 on which the article 100 is placed stand on the front surface portion 42. In a state where the seat 9 is located at the closed position P0 and the first opening position P1, the article 100 is stored in the space portion formed by the upper surface portion 41, the front surface portion 42, the lower surface portion 43, and the side surface portion 44 in a state of being held by the holding portion 45. In a state (fig. 6) where the seat 9 is located at the second opening position P2, the upper surface portion 41 of the article storage unit 40 is forward, the front surface portion 42 is downward, and is open rearward and upward, and a take-out opening is formed so that the article 100 can be taken out from above while preventing the article 100 from falling out even in a state where it is not held by the restriction member 46 such as a rubber band. The article 100 stored in the article storage unit 40 is held by a restriction member 46 such as a rubber tape so as not to fall off from the takeout opening. The regulating member 46 is engaged with a first engaging portion 41a provided on the upper surface portion 41 of the article storage portion 40 and a pair of right and left second engaging portions 43a provided on the lower surface portion 43 in a state of holding the article 100. The restricting member 46 is not limited to a rubber tape, and may be a string, a thread, or the like as long as it can fix the article 100 without dropping off the article storage section 40.

According to the present embodiment, the article storage portion 40 is provided on the lower surface of the seat 9, and the article storage portion 40 is disposed such that the lower surface portion 43 thereof partially overlaps the upper surface portion 34a of the hinge mechanism 50. In addition, in a state where the seat 9 is closed, the article storage portion 40 holds the article 100 at the front surface portion 42 thereof, that is, in the vicinity of a portion where the seat 9 is attached to the hinge mechanism 50. This makes it possible to effectively utilize the space on the lower surface of the seat and enlarge the storage space of the luggage case 10. Further, by providing the article storage 40 near the hinge mechanism 50, the weight of the seat 9 near the hinge mechanism 50 increases, and the movement of the seat when opened and closed is stabilized.

In a state where the seat 9 is opened, the front surface portion 42 of the article storage portion 40 is a lower surface, and forms an outlet through which the article 100 can be taken out from above. Since the ejection port is arranged to face upward when the seat 9 is opened in this manner, the article 100 does not fall down, and the article can be easily ejected and put in and out.

The article 100 is held by the regulating member 46 in the article storage 40 so as not to fall off from the takeout opening, and a plurality of engaging

portions

41a, 43a that engage the regulating member 46 are provided in the article storage 40. In this way, by suppressing the movement of the article 100 stored in the article storage unit 40, the vibration of the article 100 can be reduced during the traveling of the vehicle.

In addition, a holding portion 45 is provided in the article storage portion 40, and the holding portion 45 holds the article 100 in the front surface portion 42 of the article storage portion 40 in a state where the seat 9 is closed. Since the article 100 can be placed on the holding portion 45 in this manner, the article 100 can be stably held, and the article can be easily taken out and put in.

The article storage unit 40 is provided substantially at the center in the front-rear direction and the up-down direction of the vehicle body when viewed from the side of the vehicle body. Thus, since the weight of the article falls at the substantial center of the vehicle body, the article 100 can be stored without deteriorating the weight balance of the vehicle body.

< composition of hinge mechanism >

Next, a detailed configuration of the hinge mechanism 50 for supporting the seat in an openable and closable manner according to the present embodiment will be described with reference to fig. 5 to 7, and fig. 8A to 8C and 9A to 9B.

Fig. 8A is a side view showing a state of the hinge mechanism when the seat of the present embodiment is in the closed position. Fig. 8B is a side view showing a state of the hinge mechanism when the seat of the present embodiment is at the first opening position. Fig. 8C is a side view showing a state of the hinge mechanism when the seat of the present embodiment is at the second opening position. Fig. 9A is a cross-sectional view of i-i of fig. 8B. Fig. 9B is a sectional view ii-ii of fig. 8B.

In fig. 8A to 8C and 9A to 9B, the hinge mechanism 50 is provided at the front end portion of the seat bottom plate portion 34, that is, in the vicinity of the article storage portion 40, and can open and close the seat 9 to the closed position P0, the first opening position P1, and the second opening position P2.

As shown in fig. 7, the hinge mechanism 50 includes a vehicle-body-side hinge portion 51 attached to the vehicle-body-side member 13, and a seat-side hinge portion 52 attached to the seat side (the upper surface portion 34a of the seat bottom portion 34).

The vehicle-body-side hinge portion 51 has a rectangular outer shape when viewed from the front, has a first vehicle-body-side pivot support portion 53 and a second vehicle-body-side pivot support portion 54, and a seat-side pivot support portion 55 on the opposite side of the seat attachment portion 52a of the seat-side hinge portion 52 is pivotally supported by the first vehicle-body-side pivot support portion 53 via a first rotation shaft 51c so as to be rotatable.

Further, the hinge mechanism 50 includes: a first arm portion 58 pivotally supported by the second body-side pivotally supporting portion 54 of the body-side hinge portion 51 via the second rotating shaft 56 and the torsion coil spring 57 so as to be rotatable; a second arm portion 60 pivotally supported by a first arm pivot support portion 58a of the first arm portion 58 on the side opposite to the vehicle-body-side hinge portion 51 via a first arm shaft 59 so as to be rotatable; and a link portion 61, the link portion 61 connecting the second arm portion 60 and the seat-side hinge portion 52. The link portion 61 has a line-symmetrical shape in which the shaft body is bent from the central portion 61b toward both end portions 61 a.

The spring force is continuously applied by the torsion coil spring 57 to the first direction S1 in which the seat 9 is opened, and the first arm portion 58 is rotated in the first direction S1 by the spring force generated by the torsion of the torsion coil spring 57, and is rotated in the second direction S2 opposite to the first direction S1 against the spring force generated by the torsion of the torsion coil spring 57. The first arm portion 58 is provided with a first restriction portion 62, the first restriction portion 62 protrudes from the second arm pivot portion 58b of the first arm portion 58 that is pivotally supported by the vehicle-body side hinge portion 51, the rotation in the first direction S1 is restricted to the first angle θ 1, and the first restriction portion 62 is rotated together with the first arm portion 58 in the first direction S1 and brought into contact with the flat surface portion 51a of the vehicle-body side hinge portion 51, whereby a larger amount of rotation is restricted.

The seat side hinge portion 52 is provided with a second regulating portion 63 having an outer shape that is rectangular in front view, is bent く -shaped from the center portion in vehicle side view, and protrudes from the seat side pivot support portion 55, the second regulating portion 63 regulates the rotation in the first direction S1 to the second angle θ 2, and the second regulating portion 63 rotates in the first direction S1 together with the link portion 61 and abuts against the abutting portion 51b of the first vehicle body side pivot support portion 53 of the vehicle body side hinge portion 51, thereby regulating the rotation to a larger extent.

Further, between the seat side pivot support portion 55 and the seat mounting portion 52a of the seat side hinge portion 52, a protruding portion 52b protruding toward the first arm portion 58 is provided. In the protruding portion 52b, both end portions 61a of the link portion 61 are pivotally supported so as to be rotatable, and a central portion 61b of the link portion 61 is slidably supported by a shaft hole 60a formed in the second arm portion 60. The shaft hole 60a is a linear long hole formed along the longitudinal direction of the second arm portion 60.

As shown in fig. 8A, in the hinge mechanism 50 configured as described above, in a state where the seat 9 is located at the closed position P0 (the angle θ is 0 °), since the seat-side hinge portion 52 rotates in the second direction S2 about the first rotation shaft 51c, the central portion 61b of the link portion 61 (the connection position 64 to the second arm portion 60) slides from the one end portion 60a1 to the other end portion 60a2 within the shaft hole 60a of the second arm portion 60, and the central portion 61b of the link portion 61 acts so as to press down the second arm portion 60, so that the second arm portion 60 is folded about the first arm shaft 59 toward the first arm portion 58, and the first arm portion 58 rotates in the second direction S2 against the spring force generated by the torsion of the torsion coil spring 57 and stops.

When the seat 9 is lifted and opened to the first opening position P1, the hinge mechanism 50 changes from the state of fig. 8A to the state of fig. 8B. When the seat 9 moves to the first opening position P1, the seat side hinge portion 52 rotates in the first direction S1 so as to be spaced apart from the vehicle body side hinge portion 51 about the first rotation shaft 51c, and therefore, the both end portions 61a of the link portion 61 are pulled by the protruding portion 52b of the seat side hinge portion 52 to rotate, and the central portion 61b of the link portion 61 (the connection position 64 to which the second arm portion 60 is connected) moves upward while being held at the position of the other end portion 60a2 of the shaft hole 60a of the second arm portion 60, and the second arm portion 60 rotates in the second direction S2 so as to be spaced apart from the first arm portion 58. Then, the first arm portion 58 is rotated in the first direction S1 by the spring force generated by the torsion of the torsion coil spring 57 while the second arm portion 60 is rotated, and the first restriction portion 62 comes into contact with the flat surface portion 51a of the vehicle-body side hinge portion 51. Thus, when the seat 9 is opened from the closed position, the spring force acts, and therefore the seat 9 can be lifted with a small force.

In the state of fig. 8B, the first restriction portion 62 is held in contact with the vehicle-body side hinge portion 51 by the spring force generated by the torsion of the torsion coil spring 57, and the seat side hinge portion 52 is held at a first opening position P1 rotated by a first angle θ 1 from the closed position of fig. 8A about the first rotation shaft 51 c.

Next, when the seat 9 is further opened from the state of fig. 8B to the second opening position P2, the hinge mechanism 50 is in the state of fig. 8C. When the seat 9 moves to the second opening position P2, the seat side hinge portion 52 further rotates in the first direction S1 about the first rotation shaft 51c, and therefore, the both end portions 61a of the link portion 61 are pulled by the protruding portion 52b of the seat side hinge portion 52 and rotate, and the central portion 61b of the link portion 61 (the position 64 connected to the second arm portion 60) slides from the other end portion 60a2 to the other end portion in the shaft hole 60a of the second arm portion 60, and the second stopper portion 63 comes into contact with the contact portion 51b of the vehicle body side hinge portion 51.

In the state of fig. 8C, the first restriction portion 62 is held in contact with the flat surface portion 51a of the vehicle-body side hinge portion 51 by the spring force generated by the torsion of the torsion coil spring 57, and the seat side hinge portion 52 is held at the second opening position P2 where the second restriction portion 63 is in contact with the contact portion 51b of the vehicle-body side hinge portion 51 and rotated from the closed position by the second angle θ 2 about the first rotation shaft 51C.

According to the present embodiment, when the seat 9 is opened and closed, the spring force is applied around the second rotation shaft 56 of the vehicle-body-side hinge portion 51 of the hinge mechanism 50, so that the seat 9 can be lifted up in a state where the weight of the seat 9 is reduced by the spring force when the seat 9 is opened, and conversely, the seat 9 can be pushed down with a small force against the spring force by the weight of the seat 9 when the seat 9 is closed. Further, the opening degree of the seat 9 can be adjusted in stages by applying a necessary spring force to the vicinity of the second rotation shaft 56 of the vehicle-body side hinge portion 51. Further, since a thinner member than the conventional one can be used as the sealing rubber 36 for sealing between the seat bottom surface and the trunk room 10 at the closed position P0 of the seat 9 without increasing the mounting rigidity of the seat 9 and the hinge mechanism 50, the member cost can be suppressed.

When the seat side hinge portion 52 rotates in the first direction S1 to the first angle θ 1, the rotation of the first arm portion 58 in the first direction S1 is restricted, and the link portion 61 rotates the second arm portion 60 in the second direction S2 to hold the seat side hinge portion 52 at the first angle θ 1, and when the seat side hinge portion 52 further rotates from the first angle θ 1 in the first direction S1, the link portion 61 slides relative to the shaft hole 60a of the second arm portion 60 to hold the seat side hinge portion 52 at the second opening position P2 rotated by the second angle θ 2. The first arm portion 58 has a first stopper 62 that restricts rotation in the first direction S1, and the seat-side hinge portion 52 has a second stopper 63 that restricts rotation in the first direction S1 to the second angle θ 2.

This allows the state in which the seat 9 is opened to be adjusted in two stages according to the use and form of the article to be taken into and out of the luggage box 10, thereby improving convenience. Further, since the seat 9 can be lifted more easily than before and can be kept in the open state, the opening degree of the seat can be easily adjusted.

Further, an article storage portion 40 is provided on the lower surface of the seat 9, and the article storage portion 40 is disposed so as to partially overlap the upper surface portion 34a of the seat-side hinge portion 52. By partially overlapping the hinge mechanism 50 and the article storage 40 in this manner, the space on the lower surface of the seat can be effectively used.

< Shielding structure of seat latch mechanism 70 >

Next, a shielding structure of the seat latch mechanism 70 according to the present embodiment will be described with reference to fig. 10A to 14B.

Fig. 10A is a diagram showing a seat latch mechanism according to the present embodiment. Fig. 10B is a diagram showing a state in which the seat latch mechanism of the present embodiment is covered with the seat latch cover. Fig. 11 is a diagram showing a positional relationship among the seat lock cover, the armrest, and the tail light unit of the seat lock mechanism according to the present embodiment. FIG. 12A is a cross-sectional view of iii-iii of FIG. 4. Fig. 12B is an enlarged view of fig. 12A. Fig. 13A is an external view of the armrest provided at the rear portion of the vehicle body according to the present embodiment. Fig. 13B is a side view of the armrest provided at the rear portion of the vehicle body in the present embodiment. Fig. 13C is a side sectional view of the armrest provided at the rear portion of the vehicle body in the present embodiment. Fig. 14A is an external view of the seat latch cover of the seat latch mechanism according to the present embodiment as viewed from the front. Fig. 14B is an external view of the seat latch cover of the seat latch mechanism according to the present embodiment as viewed from the back.

In the seat 9 of the present embodiment, as described above, the anchor portion 35 that engages with the seat latch mechanism 70 on the vehicle body side is provided at the rear end portion of the seat bottom plate portion 34. In a state where the seat 9 is located at the closed position P0, the latch portion 35 is in a positional relationship in which it can engage with the pair of lock plates 71 of the seat latch mechanism 70. The locking plates 71 are disposed so as to face each other, and are pivotally supported by a base portion 72 so as to be swingable. In each of the lock plates 71, the spring force of the coil spring 73 acts in a direction (locked state) in which each of the lock plates 71 is closed, and the fixing hook portion 35 presses each of the lock plates 71 to rotate each of the lock plates 71 in an opening direction against the spring force generated by expansion and contraction of the coil spring 73, thereby bringing the lock plates into an engaged state. Further, when a key is inserted into a main switch (not shown) provided around the handle cover 14 to perform a predetermined unlocking operation, the respective lock plates 71 are forcibly rotated in the opening direction against the spring force of the coil springs 73, thereby being brought into the unlocked state. The seat latch mechanism 70 is fixedly secured to the rear frame 15 at the rear of the vehicle body. In the seat latch mechanism 70, the lock plate 71 is connected by the protrusion 74 and the wire 75 so as to interlock with a main switch (key cylinder) provided around the handle cover 14, and in a state where no key is inserted into the main switch, the lock plate 71 of the seat latch mechanism 70 is physically fixed in a locked state so as not to operate in the opening direction, and is held in a state of being engaged with the fixing hook 35. In the seat latch mechanism 70, when a key is inserted into the main switch and a predetermined operation is performed, the lock plate 71 of the seat latch mechanism 70 is released from being fixed, and the seat 9 is lifted up, so that the engagement with the anchor portion 35 is released, and the seat 9 can be opened to a non-locked state. In the seat lock mechanism 70, the user operates a key to release the locked state. In the unlocked state, the seat 9 can be opened and closed by the hinge mechanism 50, and the stored items can be taken into and out of the luggage case 10.

The seat latch mechanism 70 has an outer shape that protrudes rearward of the vehicle body when viewed from the side of the vehicle body. In the present embodiment, the seat latch mechanism 70 is covered with the seat latch cover 80 so as not to be directly visually recognized from the outside. As shown in fig. 14A to 14B, the seat latch cover 80 is a resin molded component having a hollow box-like outer shape, and is formed in a convex shape in which a central portion 81 is raised from above to below and the lower portion is extended in the width direction at the same height as seen from the rear of the vehicle body (in the vehicle width direction) so as to correspond to the outer shape of the seat latch mechanism 70, an upper portion of the central portion 81 is opened to allow the anchor portion 35 to be inserted and removed, and both side portions 82 thereof are formed in a concave shape inclined forward from above to below. Further, a plurality of engaging portions 84 are formed in the peripheral edge portion 83 of the seat latch cover 80, and the engaging portions 84 are engaged with a plurality of engaging holes 72a formed in the base portion 72 of the seat latch mechanism 70, thereby being attached to the seat latch mechanism 70.

The seat lock cover 80 has a function of shielding the seat lock mechanism 70 from direct visual observation from the rear of the vehicle body, and is configured to prevent a third person from forcibly releasing the locked state of the seat lock mechanism 70 by inserting a long member or the like into a gap between the armrest 11 and the tail lamp unit 12, for example. As shown in fig. 10A to 10B and 11, the seat cover 80 is disposed between an armrest 11 provided above the rear portion of the vehicle body and a tail lamp unit 12 provided behind the rear portion of the vehicle body, and the curved rib 11a of the armrest 11 surrounds the upper surface portion 83a of the seat cover 80, and the lower surface portion 83B is provided close to the vehicle body front side of the housing 12a of the tail lamp unit 12. In the present embodiment, the rib 11a of the armrest 11 is used, but a rib may be provided instead of the exterior member other than the armrest.

The housing 12a of the tail light unit 12 is disposed in proximity so as to cover the periphery of the lower surface portion 83b of the seat lock cover 80. The rib 11a provided in a part of the armrest 11 is arranged to cover the periphery of the upper surface portion 83a of the seat cover 80. As shown in fig. 12A to 12B, the seat latch cover 80 has a convex shape in cross section when viewed from the vehicle body side in a state of being attached to the seat latch mechanism 70. Further, the seat lock cover 80 is disposed such that the lower surface portion 83b is inclined upward toward the rear of the vehicle body so as to extend along the housing 12a of the tail lamp unit 12 when viewed from the side of the vehicle body. Further, in the case 12a of the tail lamp unit 12, a stepped portion 12b is formed so as to cover the periphery of the lower surface portion 83b of the seat lock cover 80.

According to the present embodiment, the seat latch mechanism 70 is covered with the seat latch cover 80 so as not to be visually recognized from the outside, the seat latch cover 80 is disposed between the armrest 11 and the tail lamp unit 12 at the rear of the vehicle body, the upper surface portion 83a of the seat latch cover 80 is surrounded by the rib 11a that is a part of the armrest 11, and the lower surface portion 83b of the seat latch cover 80 is disposed close to the vehicle body front side of the housing 12a of the tail lamp unit 12.

Thus, since the seat lock cover 80 can be held close to the tail light unit 12 without fastening it with a bolt or the like, the number of components can be reduced.

Further, since the upper surface portion 83a of the seat lock cover 80 is covered with the rib portion 11a that is a part of the armrest 11, the seat lock mechanism 70 cannot be directly seen from between the armrest 11 and the tail lamp unit 12 when viewed from the rear of the vehicle body, and thus the antitheft effect is improved.

Further, the housing 12a of the tail lamp unit 12 is disposed in proximity so as to cover the periphery of the lower surface portion 83b of the seat lock cover 80.

In this way, since the downward movement of the seat lock cover 80 is restricted by the housing 12a of the tail lamp unit 12, the seat lock mechanism 70 cannot be accessed from the rear of the vehicle body, and the antitheft effect is improved.

Further, the housing 12a of the tail lamp unit 12 also has the function of positioning and fixing the seat lock cover 80 with respect to the seat lock mechanism 70, and therefore the number of components can be reduced.

Further, since the seat lock cover 80 is held between the armrest 11 and the tail light unit 12, it is difficult to detach the seat lock cover 80, and the antitheft effect is improved.

In the seat latch cover 80, the periphery of the upper surface portion 83a on the vehicle rear side is covered with the rib 11a of the armrest 11. Thus, the seat catch mechanism 70 cannot be directly seen from between the armrest 11 and the tail lamp unit 12 when viewed from the rear of the vehicle body, and therefore the anti-theft effect is improved.

Further, since the seat latch cover 80 has a convex shape that is along the side surface shape of the seat latch mechanism 70 when viewed from the vehicle body side, there is no gap between the seat latch cover 80 and the seat latch mechanism 70, and there is no room for mixing foreign matter.

Further, the seat lock cover 80 is disposed such that the lower surface portion 83b is inclined upward toward the rear of the vehicle body so as to extend along the housing 12a of the tail lamp unit 12 when viewed from the side of the vehicle body. Accordingly, since the downward movement of the seat lock cover 80 is restricted by the housing 12a of the tail lamp unit 12, the seat lock mechanism 70 cannot be directly seen from the rear of the vehicle body, and the antitheft effect is improved.

The above embodiment is an example of a means for realizing the present invention, and the present invention can be applied to a case where the following embodiment is modified or changed without departing from the gist thereof. For example, although the present embodiment has been described with respect to an example applied to a motorcycle, the present invention is not limited to this, and can be applied to a straddle-type vehicle in its entirety.

The present invention is not limited to the above-described embodiments, and various changes and modifications can be made without departing from the spirit and scope of the present invention. Therefore, the following claims should be made to disclose the scope of the present invention.

The present application claims priority on the basis of japanese patent application laid-open at 2017, 3/31, the disclosure of which is incorporated in its entirety into the present application.

Description of the symbols

1 … motor bicycle

2 … front wheel

2a … front mudguard

3 … front fork

4 … rear wheel

4a rear mudguard

5 … rear suspension

6 … powertrain

7 … air filter

8 … silencer

9 … seat

10 … luggage case

11 … elbow rest (external component)

11a … rib

12 … taillight unit

12a … casing

12b … step

13 … vehicle body side member

14 … handle cover

21 … gauge visor

22 … front inner cover

23 … front side cover

24 … pedal cover

25 … pedal side cover

26 … rear side cover

27 … pedal

31 … first seat surface

32 … second seat surface

33 … cushion part

34 … seat pan part

35 … fixing fastener part

40 … article storage part

41 … upper surface part

41a … first locking part

42 … front surface part

43 … lower surface part

43a … second locking part

44 … side surface part

45 … holding part

46 … restraining member

50 … hinge mechanism

51 … vehicle body side hinge part

51c … first rotation axis

52 … seat side hinge part

52a … seat mounting portion

52b … projection

53 … first body side pivot bearing section

54 … second body-side pivot support

55 … seat side pivot support

56 … second axis of rotation

57 … torsion coil spring

58 … first arm

59 … first arm axle

60 … second arm

60a … shaft hole

61 … Link part

62 … first restriction

63 … second restriction

64 … connection location

70 … seat latch mechanism

71 … locking plate

72 … base section

72a … locking hole

73 … spiral spring

74 … projection

75 … line

80 … seat latch cover

81 … center part

82 … two side parts

83 … peripheral edge

83a … Upper surface portion

83b … lower surface part

84 … locking part

100 … article

P0 … closed position

P1 … first opening position

P2 … second opening position

S1 … first direction

S2 … second direction

Theta 1 … first angle

Second angle of theta 2 …

Claims

1. A seat hinge structure of a saddle-ride type vehicle, which supports a seat (9) on which a passenger sits on a vehicle body side by a hinge mechanism (50) so as to be openable and closable, characterized in that,

the hinge mechanism (50) is provided with:

a vehicle-body-side hinge section (51) attached to the vehicle-body-side member (13);

a seat-side hinge section (52) that is supported at one end of the vehicle-body-side hinge section (51) so as to be rotatable relative to the vehicle-body-side hinge section (51) in a first direction (S1) to a second angle (theta 2);

a first arm portion (58) that is supported by the other end of the seat-side hinge portion (52) so as to be rotatable in a first direction (S1) to a first angle (theta 1) with respect to the vehicle-body-side hinge portion (51);

a second arm section (60) pivotally supported by the first arm section (58) so as to be rotatable; and

a link portion (61) that connects the second arm portion (60) and the seat-side hinge portion (52),

the seat side hinge portion (52) and the first arm portion (58) are coupled via the link portion (61) rotatably supported by the seat side hinge portion (52) and the second arm portion (60) rotatably supported by the first arm portion (58), and a coupling position (64) of the second arm portion (60) and the link portion (61) is set so as to be relatively movable by rotation of the seat side hinge portion (52) by the first angle (θ 1) or more,

the first arm portion (58) has a first limiting portion (62) that limits rotation in the first direction (S1) to the first angle (theta 1),

the seat side hinge portion (52) has a second restriction portion (63) that restricts rotation in the first direction (S1) to the second angle (theta 2),

the second angle (θ 2) is greater than the first angle (θ 1).

2. The seat hinge structure of a saddle-ride type vehicle according to claim 1,

when the seat side hinge part (52) rotates to a first angle (theta 1) in a first direction (S1), the rotation of the first arm part (58) in the first direction (S1) is restricted, and the link part (61) rotates the second arm part (60) in a second direction (S2) to hold the seat side hinge part (52) at the first angle (theta 1),

when the seat side hinge portion (52) is further rotated in the first direction (S1) from the first angle (θ 1), the link portion (61) moves relative to the second arm portion (60) and holds the seat side hinge portion (52) at a second angle (θ 2).

3. The seat hinge structure of a saddle-ride type vehicle according to claim 2,

the second arm section (60) is provided with a linear shaft hole (60a) in which the link section (61) is slidably engaged,

when the seat-side hinge portion (52) is further rotated in the first direction (S1) from the first angle (theta 1), the link portion (61) slides along the shaft hole (60 a).

4. The seat hinge structure of a saddle-ride type vehicle according to any one of claims 1 to 3,

a storage part (40) capable of storing an article (100) is arranged on the lower surface of the seat (9),

the housing section (40) is disposed so as to partially overlap with a mounting section (52a) of the seat-side hinge section (52) with respect to the seat (9).