JP2003200869A - Seat opening and closing structure in compact vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attach a seat to a vehicle body by an opening and closing hinge mechanism constituted by at least a part of a grab rail to open and close it and to open an upper end opening part of a storage box to large extent at the time of putting the seat to an open position while avoiding the occurrence of restriction on design on a vehicle body side to improve the storage operation property. <P>SOLUTION: The grab rail 16 provided with at least a pair of support parts 16a, 16b extending vertically at positions separated from each other at an interval and a grip part 16c connecting these support parts 16a, 16b is fixed to the vehicle body BA. The seat 14 is attached to the vehicle body BA through the opening and closing hinge mechanism which is constituted using at least a part of the grab rail 16 as a constituent element and in which a turn axial line C is arranged more outside than an outer fringe of the seat 14 covering the upper end opening part of the storage box when viewed in a plane. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small vehicle in which an upper end opening of a storage box provided in a vehicle body is covered with an openable / closable seat, and more particularly to improvement of a seat opening / closing structure.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Utility Model Laid-Open No. 63-11918.
In the one disclosed in Japanese Patent Publication No. 6, the seat is fixed to the grab rail, and the base end of the grab rail is rotatably attached to the vehicle body. In the tandem seat, the front seat is pivotally attached to the vehicle body so that the front seat is rotatable and the rear seat is rotatable rearward.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention Saikai 63-11
In the one disclosed in Japanese Patent No. 9186, in order to cover the opening / closing hinge mechanism with the seat in the closed position to improve the appearance, the base end portion of the grab rail is covered with the seat in the closed position. The axis of rotation of the opening / closing hinge mechanism is arranged at. Therefore, even if the seat is at the open position, the upper end opening of the storage box cannot be largely opened, and it cannot be said that the storage operability in the storage box is excellent.

Therefore, it is conceivable to form a notch or a recess on the vehicle body side, which serves as a relief when the seat is pivoted largely and the upper end of the storage box is largely opened.
There will be restrictions on the design of the vehicle body.

The present invention has been made in view of the above circumstances, and is designed such that the seat is openably and closably attached to the vehicle body by an opening / closing hinge mechanism constituted by at least a part of the grab rail. It is a first object of the present invention to provide a seat opening / closing structure for a small-sized vehicle in which the upper end opening of the storage box is largely opened when the seat is in the open position while avoiding the restriction on the seat, and the storage operability is improved. And

Further, in the above-mentioned Japanese Patent Laid-Open No. 9-11946, when other parts such as a backrest and a top box are arranged on the rotating side of the seat,
The opening angle of the seat is limited, and even if the seat is in the open position, the upper end opening of the storage box cannot be largely opened, and it cannot be said that the operability of storage in the storage box is excellent.

The present invention has been made in view of such circumstances, and opens the upper end opening portion of the storage box sufficiently large even when other parts are arranged on the side of the seat, and stores operability. A second object of the present invention is to provide a seat opening / closing structure for a small-sized vehicle with improved vehicle performance.

[0008]

In order to achieve the first object, the invention according to claim 1 is a small vehicle in which an upper end opening of a storage box provided on a vehicle body is covered with an openable / closable seat. , A grab rail having at least a pair of vertically extending support portions at mutually spaced positions and a grip portion connecting the support portions is fixed to a vehicle body, and at least a part of the grab rail is used as a component. The seat is attached to the vehicle body via an opening / closing hinge mechanism that is configured and has a rotation axis that is arranged outward in a plan view as compared with the outer edge of the seat that covers the upper end opening of the storage box. And

According to the structure of the invention described in claim 1, the rotation axis of the seat is arranged outward in plan view as compared with the outer edge of the seat covering the upper opening of the storage box. Therefore, when opening the storage box, the seat can be rotated largely while avoiding interference with the vehicle body, and it is not necessary to form a notch or a depression on the vehicle body side, and there is no restriction on the vehicle body side design. Further, the upper end opening of the storage box can be largely opened, and the storage operability can be improved.

The invention according to claim 2 is the above-mentioned claim 1.
In addition to the structure of the invention described above, both ends of the gripping part to which the seat is fixed are characterized in that they are connected to the both support parts so as to be rotatable about the same axis, and according to such a structure, By using the entire grab rail as a component of the open / close hinge mechanism, it is possible to stably support the seat on the vehicle body side when opened while suppressing the increase in the number of parts, and to support both loads when using the grab rail. The parts can be efficiently supported to reduce the burden on the seat side.

According to a third aspect of the present invention, in addition to the structure of the first or second aspect of the invention, both sides of the seat are
A first grab rail that constitutes the opening / closing hinge mechanism at least in part and a second grab rail fixed to the seat are arranged, and the second grab rail is gripped by a seat catch provided on the vehicle body side. According to this configuration, the seat catch can be arranged outside the storage box, and the storage box can be largely opened without being disturbed by the seat catch. The storage operability of can be further improved.

In order to achieve the second object, the invention according to claim 4 is a small-sized vehicle in which an upper end opening of a storage box provided on a vehicle body is covered with an openable / closable seat. Between the closing position for closing the upper end opening and the ascending / descending position set between the ascending position set above the closing position, and between the ascending position and the opening position retracting laterally from above the storage box. The seat is attached to the vehicle body via an elevating / rotating support mechanism capable of rotating the seat.

According to the structure of the invention described in claim 4, even when other parts are arranged on the side of the seat, the seat is raised from the closed position to the raised position and then to the open position. By rotating, the upper end opening of the storage box can be opened sufficiently large and the storage operability can be improved.

Further, in addition to the constitution of the invention according to claim 4, the invention according to claim 5 is a rear seat which constitutes a tandem seat together with a front seat arranged in front of the seat. The open position is set above the front seat, and according to such a configuration, the height of the rear seat is relatively lowered to avoid an increase in the size of the lift / rotation support mechanism. At the same time, the storage box can be opened and closed so that the rear of the rear seat can be effectively used as a luggage storage space or the like.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below based on the embodiments of the present invention shown in the accompanying drawings.

1 to 3 show a first embodiment of the present invention. FIG. 1 is a side view of the rear right side of a scooter type motorcycle, FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1, and FIG. FIG. 3 is a sectional view taken along line 3-3 of FIG. 2.

First, in FIGS. 1 and 2, a part of a vehicle body BA of a scooter type motorcycle, which is a small vehicle, is composed of a synthetic resin rear cover 11A, and a rider is mounted on the rear cover 11A. A tandem seat 12 is provided which includes a front seat 13 on which a passenger sits and a rear seat 14 which is arranged behind the front seat 13 so that a passenger can be seated on the seat.

Referring also to FIG. 3, at least the rear seat 14 of the tandem seat 12 covers the upper opening of a storage box 15A provided in the vehicle body BA so that a helmet (not shown) can be stored therein so as to be opened and closed. And is rotatable between the closed position shown by the solid line in FIG. 3 and the open position shown by the chain line in FIG.

The rear seat 14 is attached to the rear cover 11A of the vehicle body BA so as to be openable and closable via an opening / closing hinge mechanism.
At least one of the first grab rails 16 arranged on the right side of the rear seat 14 among the first and second grab rails 16 and 17 arranged on both sides of the rear seat 14 for a passenger sitting on the seat 4 to grasp. In the first embodiment, all parts are configured as constituent elements. That is, the first grab rail 16 allows the rear seat 14 to be opened and closed and the rear cover 11
It also has a function as an opening / closing hinge mechanism attached to A.

The first grab rail 16 has a pair of support portions 16a, 16b whose base ends are fixed to the rear cover 11A of the vehicle body BA so as to extend vertically at positions spaced apart in the front-rear direction of the scooter type motorcycle. And their support 1
6a, 16b and a grip portion 16c that connects the tip portions,
Both ends of the grip portion 16c are connected to the support portions 16a and 16b so as to be rotatable about a coaxial axis line. That is, the shaft portion 1 arranged coaxially at both ends of the grip portion 16c.
6d and 16d are respectively provided so as to project, and the shaft portions 16d and 16d are rotatably supported by the tip ends of the pair of support portions 16a and 16b.

A pair of connecting arm portions 16e, 16f extending toward the rear seat 14 side are integrally connected to both ends of the grip portion 16c, and the connecting arm portions 16e, 16f are connected by screw members 18, 18 to the rear portion. It is fastened to the right side of the seat 14. That is, since the support portions 16a, 16a of the first grab rail 16 are fixed to the vehicle body outside the right side of the rear seat 14 in a state of covering the upper end opening of the storage box 15A, the first grab rail 16 is stored. This constitutes an opening / closing hinge mechanism in which the rotation axis C passes through the inside of the grip portion 16c which is outside the outer edge of the rear seat 14 that covers the upper end opening of the box 15B in plan view.

The second grab rail 17 has a rear cover 11
A base plate portion 17a which can be placed on A and extends in the front-rear direction of the scooter type motorcycle; and a pair of support portions 17b whose base end portions are integrally fixed to both front and rear end portions of the base plate portion 17a,
17c, a grip portion 17d that integrally connects the leading end portions of the support portions 17b and 17c, and a pair of connecting arm portions 17e and 17f that are integrally formed at both ends of the grip portion 17d and extend toward the rear seat 14 side. The connecting arms 17e, 17f are fastened to the left side of the rear seat 14 by the screw members 19 ...

The substrate portion 17 of the second grab rail 17
On the lower surface of the central portion of a, the board portion 17a is provided with the rear cover 11A.
A hook 20 that protrudes into the rear cover 11A when placed on the top is fixed, and a seat catch 21 capable of gripping the hook 20 is fixed to the vehicle body BA on the left side of the storage box 15A in the rear cover 11A. It is arranged like this.

Next, the operation of the first embodiment will be described. Of the first and second grab rails 16 and 17 arranged on both sides of the rear seat 14, the first grab rail 1
Reference numeral 6 includes a pair of support portions 16a, 16a whose base end portions are fixed to the vehicle body BA at mutually spaced positions, and a grip portion 16b connecting between the front end portions of the support portions 16a, 16a. The opening / closing hinge mechanism is configured by using at least a part (all in the first embodiment) of the first grab rail 16 as all constituent elements, and the rotation axis C of the opening / closing hinge mechanism is the storage box 15A. It is set so as to pass through the grip portion 16c that is located on the outer right side in plan view with respect to the outer edge of the rear seat 14 that covers the upper end opening.

According to the opening / closing hinge mechanism, that is, the first grab rail 16, the rotation axis C of the rear seat 14 is used.
Is arranged at a position relatively far away from the upper end opening edge of the storage box 15A and upward from the vehicle body BA, and the rear seat 14 can be pivoted largely while avoiding interference with the vehicle body BA. it can. Therefore,
It is not necessary to form notches or dents on the vehicle body BA side,
Open the upper end opening of the storage box 15A so that the design on the vehicle body BA side is not restricted,
The operability of storage in the storage box 15A can be improved.

In addition, in the first grab rail 16, both ends of the grip portion 16c to which the rear seat 14 is fixed are rotatable about the same axis, and the pair of support portions 16a, 1 are provided.
6b, and both support parts 16a, 16b
Is fixed to the vehicle body BA. That is, by using the entire first grab rail 16 as a constituent element of the opening / closing hinge mechanism, the rear seat 14 at the time of opening can be stably supported on the vehicle body BA side while suppressing an increase in the number of parts. Load when using rail 16
A and 16B can be efficiently supported to reduce the load on the rear seat 14 side.

Further, on both sides of the rear seat 14, a first grab rail 16 which also functions as an opening / closing hinge mechanism and a second grab rail 17 fixed to the rear seat 14 are arranged. A hook 20 that is gripped by a seat catch 21 provided on the vehicle body BA side is provided.

Therefore, the seat catch 21 can be arranged outside the storage box 15A, and the seat catch 2
It is possible to open the storage box 15A largely without being disturbed by 1, and it is possible to further improve the operability of storage in the storage box 15A.

FIG. 4 shows a modification of the first embodiment, in which the support portions 16a, 16 are provided on the right outside of the rear seat 14 in a state of covering the upper opening of the storage box 15A.
The first grab rail 16 whose a is fixed to the vehicle body has a rotation axis C below the grip portion 16c outside in plan view of the outer edge of the rear seat 14 that covers the upper end opening of the storage box 15B. The opening / closing hinge mechanism that passes through will be configured.

Also according to this modification, the rotation axis C of the rear seat 14 is located at a position relatively far away from the upper end opening edge of the storage box 15A and upward from the vehicle body BA. The rear seat 14 can be largely rotated while avoiding interference with the rear seat 14. Therefore, it is not necessary to form a notch or a depression on the vehicle body BA side, and the upper end opening of the storage box 15A is largely opened so that the design on the vehicle body BA side is not restricted, and the storage box 15A is not opened. The storage operability can be improved.

5 and 6 show a second embodiment of the present invention. FIG. 5 is a side view of the rear right side of the scooter type motorcycle, and FIG. 6 is a view taken in the direction of arrow 6 in FIG.

The rear seat 14 is attached to the rear cover 11A of the vehicle body BA so as to be openable and closable via an opening / closing hinge mechanism.
At least one of the first grab rails 22 arranged on the right side of the rear seat 14 among the first and second grab rails 22 and 23 arranged on both sides of the rear seat 14 for a passenger sitting on the seat 4 to grasp. It is composed of parts.

The first grab rail 22 is fixed on the rear cover 11A of the vehicle body BA and extends in the front-rear direction of the scooter type motorcycle, and the substrate portion 22a.
A pair of support portions 22b and 22c, whose base end portions are integrally fixed to both front and rear end portions and extend vertically, and those support portions 22
The gripping portion 22d integrally connects the tip portions of the b and 22c.

The storage box 1 is provided at both ends of the grip portion 22d.
A rotation axis C that passes through the inside of the grip portion 22d outwardly in plan view as compared with the outer edge of the rear seat 14 that covers the upper end opening of 5B.
One end of a pair of rotating arms 44, 44 is rotatably connected via shafts 43, 43 having axes arranged above the two rotating shafts 4.
The rear seats 14 are fixed to the other ends of 4, 44.

The second grab rail 23 is formed so as to have an external shape substantially similar to the external shape of the first grab rail 22, and the rear seat 14 of the rear seat 14 is provided with a pair of connecting arms 45, 45. Fixed on the left side. The second grab rail 23 is provided with the hook 20 gripped by the seat catch 21 provided on the vehicle body BA side.

Also according to this second embodiment, the rear seat 1
The rotation axis C of 4 is located at a position relatively far away from the upper end opening edge of the storage box 15A and upward from the vehicle body BA, so that the rear seat 14 can be prevented from interfering with the vehicle body BA. It can rotate greatly. Therefore, it is not necessary to form a notch or a depression on the vehicle body BA side, and the upper end opening of the storage box 15A is largely opened so that the design on the vehicle body BA side is not restricted, and the storage box 15A is not opened. The storage operability can be improved.

7 to 13 show a third embodiment of the present invention. FIG. 7 is a vertical sectional side view of the rear part of the scooter type motorcycle as seen from the left side, and FIG. Figure, Figure 9
8 is a plan view corresponding to FIG. 8 with the rear seat in the open position, and FIG. 10 shows the lifting / rotating support mechanism 10-1 of FIG.
FIG. 11 is a vertical cross-sectional view of the lifting / rotating support mechanism viewed from the same side as FIG. 10, and FIG. 12 is a lifting / rotating support mechanism taken along line 12-12 of FIG. View from the viewing direction,
FIG. 13 is a diagram sequentially showing the operating states of the lifting / rotating support mechanism.

7 to 9, a part of a vehicle body BB of a scooter type motorcycle, which is a small vehicle, is composed of a synthetic resin rear cover 11B, and a rider is placed on the rear cover 11B. Front seat 13 for sitting
And a rear seat 14 arranged behind the front seat 13 so that a passenger can be placed on the tandem seat 1.
Two are provided.

At least the rear seat 14 of the tandem seat 12 covers the top opening of the storage box 15B provided in the vehicle body BB so that the helmet 24 and the like can be stored therein, and can be opened and closed. It is operable between the closed position shown and the open position shown in FIG. Also, the rear cover 11B is located behind the rear seat 14
A top box 25 is attached on the top.

The rear seat 14 is provided with a lifting / rotating support mechanism 2
The lifting / rotating support mechanism 26 is attached to the vehicle body BB via 6 and the closing position (the position shown by the solid line in FIG. 7 and the position in FIG. 8) that closes the upper end opening of the storage box 15B. An open position that allows the rear seat 14 to be lifted and lowered between elevated positions (positions indicated by chain lines in FIG. 7) set above the closed position and retracts sideways from above the elevated position and the storage box 15B ( The rear seat 14 can be rotated between positions (shown in FIG. 9), and the open position is set above the front seat 13.

10 to 12, the elevating / rotating support mechanism 26 is arranged at a position corresponding to the right front part of the rear seat 14 in the closed position, and has a bottomed cylindrical shape with its lower end closed. An outer cylinder 27 formed vertically and extending vertically, an inner cylinder 28 having an upper end fastened to the bottom of the rear seat 14 and inserted into the outer cylinder 27, and a spring force for urging the inner cylinder 28 upward. Thus, the coil spring 29 is provided between the outer cylinder 27 and the inner cylinder 28.

The outer cylinder 27 is fixed to a stay 31 provided on a seat rail 30 which constitutes a part of the vehicle body BB. Further, between the upper end portion of the outer cylinder 27 and the inner cylinder 28, and the outer cylinder 2
Ring slide bushes 32 and 33 are provided between the intermediate portion of 7 and the inner cylinder 28, respectively.
Is supported by the outer cylinder 27 so that it can move in the axial direction, that is, in the vertical direction, and can rotate about the axis.

A spring receiving plate 34 is inserted in the middle portion of the inner cylinder 28. A coil spring 29 that exerts a spring force that biases the inner cylinder 28 upward between the spring receiving plate 34 and the spring receiving member 35 that slidably contacts the inner surface of the bottom closed end of the outer cylinder 27. Is provided.

When the rear seat 14 is in the closed position, that is, when the inner cylinder 28 is at the lowermost position, it is above the slide bush 33, and the outer cylinder 27 penetrates the outer surface of the inner cylinder 28. Guide pin 36 protruding outward
The spring receiving plate 34 can contact the guide pin 36 from below.

The outer cylinder 27 is provided with a guide hole 37 through which the guide pin 36 is inserted. The guide hole 37 includes an elevating guide hole portion 37a extending vertically and the elevating guide portion 37.
The rotation guide hole portion 37b extends from the upper end of a in the circumferential direction of the outer cylinder 27. Thus, the lifting guide hole portion 37a
Guides the guide pin 36 when the rear seat 14 moves up and down between the closed position and the raised position, and the rotation guide hole portion 37b serves to rotate the rear seat 14 between the raised position and the open position. The guide pin 36 is guided to the inside. Moreover, the end portion of the rotation guide hole portion 37b is formed in a slantingly inclined bag hole shape in order to give a click feeling when the rear seat 14 is rotated to and from the open position. .

A housing 39 of a hinge lock means 38 is mounted on the outer surface of the middle portion of the outer cylinder 27, and the state in which the rear seat 14 is in the closed position, that is, the inner cylinder 28 is located in the lowermost position in the housing 39. The lock member 40 that engages with the guide pin 36 from above when the lock member 40 is in the position is stored.

The lock member 4 of the hinge lock means 38
The reference numeral 0 indicates that the spring is biased to the side that engages with the guide pin 36 and that it is interlocked with the seat lock means 41 provided between the rear seat 14 and the vehicle body BB. As the seat 14 is opened, the lock member 40 operates in a direction to release the engagement with the guide pin 36. Also, the rear seat 14
After the guide pin 36 passes through the lock member 40 when lowering the lock member 40 to the closed position, the lock member 40 is engaged with the guide pin 36 from above according to the locking of the seat lock means 41.

According to the lifting / rotating support mechanism 26 as described above, when the seat lock means 41 is locked with the rear seat 14 in the closed position, the guide pin 36 is provided as shown in FIG. 13 (a). The lock member 40 is engaged with the rear seat 14 and the rear seat 14 maintains the closed position regardless of the upward biasing force of the coil spring 29.

Then, when the lock member 40 is disengaged from the guide pin 36 in response to the unlocking of the seat lock means 41, as shown in FIG. 13B, the coil spring 29 exerts an upward biasing force. The inner cylinder 28 and the rear seat 1
4 jumps to the ascending position. Then, when a turning force is manually applied to the rear seat 14, the rear seat 14 and the inner cylinder 28 rotate around the axis of the outer cylinder 27, as shown in FIG. 13 (c), from the raised position to the open position. The rear seat 14 will rotate.

According to this third embodiment, the rear seat 14
Can be moved up and down between a closed position for closing the upper end opening of the storage box 15B and a raised position set above the closed position, and between the raised position and an open position for retracting laterally from above the storage box 15B. Therefore, even when other parts such as the top box 25 are arranged on the side of the rear seat 14, for example, at the rear, the rear seat 14 is raised from the closed position to the raised position. By rotating to the open position, the upper end opening of the storage box 15B can be opened sufficiently large and the storage operability can be improved.

Moreover, since the open position is set above the front seat 13, the vertical height of the rear seat 14 is made relatively low to avoid the increase of the size of the lift / rotation support mechanism 26, while the rear seat is prevented. It is possible to open and close the storage box 15B so that the rear of 14 can be effectively used as a luggage storage space or the like by the top box 25 or the like.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the claims. It is possible.

[0053]

As described above, according to the first aspect of the present invention, the seat can be pivoted largely while avoiding the interference with the vehicle body, and the design of the vehicle body side is not restricted. It is possible to greatly open the upper end opening of the and improve the operability of storage.

According to the second aspect of the present invention, the seat when opened can be stably supported on the vehicle body side while suppressing an increase in the number of parts, and the load when using the grab rail can be supported by both support portions. Can efficiently support and reduce the load on the seat side.

According to the third aspect of the present invention, the storage box can be largely opened without being obstructed by the seat catch, and the operability of storage in the storage box can be further improved.

According to the invention described in claim 4, the upper end opening of the storage box can be opened sufficiently large to improve the storage operability even when other components are arranged on the side of the seat. You can

Further, according to the invention of claim 5, the rear of the rear seat can be effectively used for a luggage storage space and the like, while avoiding an increase in the size of the lifting / rotating support mechanism. It can be opened and closed.

[Brief description of drawings]

FIG. 1 is a right side view of a rear portion of a scooter type motorcycle according to a first embodiment.

FIG. 2 is a view on arrow 2 of FIG.

FIG. 3 is a sectional view taken along line 3-3 of FIG.

FIG. 4 is a side view corresponding to FIG. 1 showing a modification of the first embodiment.

FIG. 5 is a side view of the rear right side of the scooter type motorcycle according to the second embodiment.

6 is a view from arrow 6 of FIG.

FIG. 7 is a vertical sectional side view of the rear portion of the scooter type motorcycle according to the third embodiment as viewed from the left side.

FIG. 8 is a plan view taken along the arrow 8 in FIG.

FIG. 9 is a plan view corresponding to FIG. 8 with the rear seat in the open position.

10 is a view of the lifting / rotating support mechanism as viewed in the direction of arrow 10-10 in FIG.

11 is a vertical sectional view of the lifting / rotating support mechanism as viewed from the same side as FIG.

12 is a view of the lifting / rotating support mechanism as viewed in the direction of arrows 12-12 in FIG.

FIG. 13 is a diagram sequentially showing operation states of a lifting / rotating support mechanism.

[Explanation of symbols]

12 ... Tandem seat 13 ... Front seat 14 ... rear seat 15A, 15B ... Storage box 16 ... 1st grab rail 16a, 16b ... Support portion 16c ... Grip 17 ... Second grab rail 20 ... Hook 21 ... Seat catch 26 ... Lifting / rotating support mechanism BA, BB ... Body C ... Rotation axis

Claims (5)

[Claims] 1. A small vehicle in which a storage box (15B) provided on a vehicle body (BA) has an upper end opening covered with a seat (14) that can be opened and closed, and a pair of vertically extending portions at mutually spaced positions. Support parts (16a, 16b; 22b,
22c) and their supports (16a, 16b; 22)
The grab rails (16, 22) including at least the gripping portions (16c, 22d) connecting the (b, 22c) to the vehicle body (B
A) fixed to A), configured to have at least a part of the grab rails (16, 22) as a constituent element, and seen in a plan view from the outer edge of the seat (14) covering the upper end opening of the storage box (15B). With outward rotation axis (C)
The seat (1
4) A seat opening / closing structure for a small vehicle, in which the vehicle body (BA) is attached. 2. Both ends of the grip portion (16c) to which the seat (14) is fixed are connected to the both support portions (16a, 16b) so as to be rotatable about the same axis. The seat support structure for a small vehicle according to claim 1. 3. A first grab rail (16, 22) which constitutes at least a part of the opening / closing hinge mechanism on both sides of the seat (14), and a second grab rail (fixed to the seat (14). 17 and 23), and the second grab rail (17, 23) has a hook (2) held by a seat catch (21) provided on the vehicle body (BA) side.
0) is provided, The seat opening / closing structure for a small vehicle according to claim 1 or 2, wherein 4. A seat (14) in which an upper end opening of a storage box (15B) provided on a vehicle body (BB) can be opened and closed.
In a small vehicle covered with, the storage box (15
The seat (14) between a closed position closing the upper opening of B) and a raised position set above the closed position.
(23) A lifting / rotating support mechanism (26) that allows the seat (14) to rotate between the raised position and the open position that retracts sideways from above the storage box (15B). ) Through the sheet (14)
A seat opening / closing structure for a small-sized vehicle, wherein the seat is attached to a vehicle body (BB). 5. The sheet (14) includes the sheet (1).
4) A rear seat that constitutes a tandem seat (12) together with a front seat (13) arranged in front of the front seat (4), and the open position is set above the front seat (13). A seat opening / closing structure for a small vehicle according to claim 4.