JP2015189344A - Movable seat structure of motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the flexibility of position adjustment in a vehicle seat in a motorcycle in which a low-floor type step floor on which an occupant can straddle is supported by a vehicle frame to be disposed between the front and rear wheels, and a seat pipe supporting at an upper end, the vehicle seat on which the occupant puts his/her leg to be seated extends upward from the step floor.SOLUTION: The lower end of a seat pipe 21 is turnably supported to a step floor 17, and there is provided a seat pipe-supporting means 22 supporting the seat pipe 21 between the seat pipe 21 and the step floor 17 so as to retain an adjusted angle while making it possible to adjust an angle of the seat pipe 21 in a cross direction with respect to the step floor 17.

Description

  The present invention is such that a low floor type step floor that allows an occupant to straddle is supported by a vehicle body frame so as to be disposed between a front wheel and a rear wheel, and the occupant is seated so that a foot is placed on the step floor. The present invention relates to a motorcycle in which a seat pipe that supports a riding seat at an upper end extends upward from the step floor, and more particularly, to an improvement in a movable seat structure that can move a riding seat.

  At the upper end of the seat pipe that rises upward from the step floor, a sheet holding plate that can change the angle with respect to the seat pipe with a ratchet is supported, and the position along the longitudinal direction of the sheet holding plate is supported on the sheet holding plate. A motorcycle is known from Patent Document 1 in which a vehicle seat is attached as adjustable.

JP 2002-96784 A

  However, as disclosed in Patent Document 1, the position of the riding seat is within the adjustable range of the relative angle between the seat pipe and the seat holding plate and the adjustment range of the riding seat along the longitudinal direction of the seat holding plate. However, the passenger seat does not move, and it is desired to further increase the degree of freedom in adjusting the position of the passenger seat.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a movable seat structure in a motorcycle that can increase the degree of freedom of adjustment of the position of a riding seat.

  In order to achieve the above object, the present invention is such that a low floor type step floor that allows an occupant to straddle is supported by a vehicle body frame so as to be disposed between a front wheel and a rear wheel. In a motorcycle in which a seat pipe for supporting a passenger seat on which an occupant is seated so as to be mounted on the upper end extends upward from the step floor, the lower end of the seat pipe is rotatable to the step floor. Seat pipe support means that is supported and supports the seat pipe 21 so as to maintain an adjusted angle between the seat pipe and the step floor in a front-rear direction with respect to the step floor. It is the first feature that is provided.

  According to the present invention, in addition to the configuration of the first feature, the seat pipe support means is disposed so as to extend up and down behind the seat pipe, and a lower end portion thereof is rotatably supported by the step floor. A link member, and a gripping member rotatably connected to the upper end of the link member so as to fixably hold the seat pipe so that the position along the longitudinal direction of the seat pipe is adjustable. It is characterized by.

  In the present invention, in addition to the configuration of the first or second feature, a third aspect is that the riding seat is supported by an upper end portion of the seat pipe so that a relative posture with respect to the seat pipe can be adjusted. It is characterized by.

  In the present invention, in addition to the configuration of the second feature, the seat pipe is configured such that the lower end of the seat pipe is rotatably supported on the step floor, and the riding seat is supported on the upper end. And an inner pipe that is slidably fitted into the outer pipe from its upper end, and the outer pipe and the inner pipe determine the position of the inner pipe relative to the outer pipe. In the fourth feature, the gripping member is gripped by the gripping member.

  Furthermore, in addition to any of the configurations of the first to fourth features of the present invention, a loading platform that comes into contact with the seat pipe or the riding seat from the rear in a state where the seat pipe is tilted to the maximum extent, A fifth feature is that it is provided at a rear portion of the vehicle body frame.

  According to the first feature of the present invention, the seat pipe tilts back and forth, and the tilted position is supported by the seat pipe support means, so that the position of the riding seat supported by the upper end portion of the seat pipe is changed back and forth and It can be adjusted greatly in the vertical direction, and the degree of freedom in adjusting the position of the riding seat can be increased.

  According to a second aspect of the present invention, the seat pipe support means includes a link member whose lower end is rotatably supported by the step floor, and the link member so as to hold the seat pipe fixedly. And a gripping member rotatably connected to the upper end portion. The step floor, the seat pipe and the link member form a truss structure, and the support strength of the seat pipe can be increased. For this reason, it is possible to avoid the enlargement of the seat pipe in order to increase the strength, and to secure a large spanning space on the step floor, so that the passengers can get on and off.

  According to the third aspect of the present invention, since the relative posture of the riding seat with respect to the seat pipe is adjustable, the posture of the riding seat with respect to the seat pipe is changed in accordance with a change in the angle of the seat pipe with respect to the step floor. The seating comfort of the passenger can be improved.

  According to the fourth feature of the present invention, the seat pipe is composed of an outer pipe and an inner pipe that is slidably fitted into the outer pipe from its upper end, and the outer pipe and the inner pipe are fastened together. Therefore, it is possible to adjust the position of the riding seat in a wider range by easily changing the length of the seat pipe, and further increase the degree of freedom in adjusting the position of the riding seat. be able to.

  Furthermore, according to the fifth feature of the present invention, the seat pipe, the seat for riding, and the loading platform provided at the rear part of the vehicle body frame are in contact with each other from the rear in a state where the seat pipe is tilted as far as possible to the maximum. It is possible to stably hold the posture tilted backward as much as possible, and to improve the loadability by utilizing the space between the seat pipe and the loading platform as the article mounting portion.

1 is a left side view of a motorcycle. FIG. 2 is a sectional view taken along line 2-2 of FIG. FIG. 2 is a view corresponding to FIG. 1 in a state where the seat pipe is tilted rearward as much as possible. FIG. 2 is a view corresponding to FIG. 1 when a load is loaded on the loading platform when the seat pipe is not tilted rearward as much as possible. FIG. 5 is a view corresponding to FIG. 4 in a state where a long load is mounted between the seat pipe and the loading platform when the seat pipe is not tilted rearward as much as possible.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, front and rear, left and right, and top and bottom refer to directions viewed from a passenger who rides a motorcycle.

  First, in FIG. 1, a body frame F of the motorcycle includes a head pipe 7 that supports a front fork 5 and a bar-shaped steering handle 6 that pivotally support a front wheel WF at a lower end portion thereof, and the head pipe 7 A main frame 8 integrally including an inclined portion 8a extending downward from the rear and a horizontal portion 8b extending rearward from the lower end of the inclined portion 8a, and a pair of side frames 9 disposed on the left and right sides of the main frame 8. .

  The side frame 9 includes a front inclined portion 9a that extends from the front end portion to the middle portion of the inclined portion 8a of the main frame 8 and extends downward, and a side portion of the horizontal portion 8b of the main frame 8. A horizontal portion 9b extending horizontally rearward from the lower end of the front inclined portion 9a, a first rear inclined portion 9c extending rearward from the rear end of the horizontal portion 9b, and a first rear portion It is formed so as to integrally have a second rear inclined portion 9d that inclines rearwardly at a gentler angle than the inclined portion 9c and continues to the rear end of the first rear inclined portion 9c.

  A loading platform 11 is provided on the rear portion of the vehicle body frame F, on the second rear inclined portion 9d of the pair of left and right subframes 9 in this embodiment.

  Further, a bracket 12 is provided at a connecting portion of the horizontal portion 9b and the first rear inclined portion 9c in the pair of left and right side frames 9, and the output of the internal combustion engine E and the internal combustion engine E is transmitted to the rear wheel. A power unit P including a power transmission device M for transmitting to WR is supported by the bracket 12 via a link mechanism 13 so as to be swingable, and an axle 15 of the rear wheel WR is pivotally supported on a case 14 of the power transmission device M. A rear cushion unit 16 is provided between the rear end of the case 14 and the rear end of the side frame 9.

  Referring also to FIG. 2, a low floor type step floor 17 that allows an occupant to straddle is disposed between the front wheel WF and the rear wheel WR. The frame F is supported on the horizontal portion 8b of the main frame 8 and the horizontal portion 9b of the pair of left and right side frames 9, and the horizontal portion 9b of the pair of left and right side frames 9 is spaced forward and backward. Cross members 18 and 19 arranged at two positions are provided, and the horizontal portion 8b of the main frame 8 is also fixed on an intermediate portion between the cross members 18 and 19.

  A seat pipe 21 that supports a passenger seat 20 on which an occupant sits so as to place his / her foot on the step floor 17 is extended upward from the step floor 17, and a lower end portion of the seat pipe 21. Is rotatably supported by the step floor 17 and maintains an adjusted angle between the seat pipe 21 and the step floor 17 while allowing the angle of the seat pipe 21 to be adjusted with respect to the step floor 17 in the front-rear direction. Thus, seat pipe support means 22 for supporting the seat pipe 21 is provided.

  The seat pipe 21 includes an outer pipe 23 whose lower end portion is rotatably supported on the step floor 17 and an upper end portion in the outer pipe 23 so that the riding seat 20 is supported on the upper end portion. And an inner pipe 24 that is slidably fitted. A lower end portion of the seat pipe 21, that is, a lower end portion of the outer pipe 23 is rotatably supported by a first support shaft 25 that is provided at a center portion in the vehicle width direction of the step floor 17 and extends in the vehicle width direction.

  The riding seat 20 is supported by the upper end portion of the seat pipe 21, that is, the upper end portion of the inner pipe 24, so that the relative posture with respect to the seat pipe 21 can be adjusted by the operation of the adjustment lever 26.

  The seat pipe support means 22 is disposed so as to extend up and down behind the seat pipe 21 and has a pair of left and right link members 27 whose lower ends are rotatably supported by the step floor 17, and the seat pipe. And a gripping member 28 rotatably connected to the upper end of the link member 27 so that the position along the longitudinal direction of the link member 27 can be adjusted.

  The lower end portion of the link member 27 has a second support shaft 29 provided on the step floor 17 so as to have an axial line extending in the vehicle width direction at two positions spaced left and right behind the first support shaft 25. It is supported so that it can rotate.

  The gripping member 28 is inserted through the outer pipe 23 having a slit extending in the axial direction, and a state in which the outer pipe 23 is clamped and gripped according to a turning operation of the adjustment lever 30 and a state in which the tightening is released. Since the inner pipe 24 is slidably fitted in the outer pipe 23, the gripping member 28 determines the position of the inner pipe 24 relative to the outer pipe 23. The outer pipe 23 and the inner pipe 24 can be gripped in the fastened state.

  The upper ends of the pair of left and right link members 27 are connected in common to the gripping member 28 so as to be able to rotate about an axis coaxial with the rotation axis of the operation lever 30.

  According to the seat pipe support means 22, the seat pipe 21 is tilted back and forth by changing the grip position of the seat pipe 21 by the grip member 28, and the engagement position is fixedly held. As shown in FIG. 3, when the seat pipe 21 is tilted rearward as much as possible, the seat pipe 21 or the riding seat 20, in this embodiment, the riding seat 20, A loading platform 11 provided at the rear of the frame F abuts from behind.

  Therefore, in a state where the seat pipe 21 is separated from the loading platform 11 in a forward direction, a larger amount than the load 31 (see FIG. 3) loaded on the loading platform 11 in a state where the loading platform 11 is in contact with the riding seat 20 from the rear. As shown in FIG. 5, the load 32 is loaded up to the front end of the loading platform 11 as shown in FIG. 4, or the space between the seat pipe 21 and the loading platform 11 is used as a loading platform. The long luggage 33 placed on the step floor 17 can be stacked so as to be sandwiched between the boarding seat 20 and the loading platform 11.

  Next, according to this embodiment, the occupant can straddle and put his feet on the low floor type step floor 17 supported by the vehicle body frame F so as to be disposed between the front wheel WF and the rear wheel WR. Thus, the passenger seat 20 on which the occupant is seated is supported by the upper end portion of the seat pipe 21 that extends upward from the step floor 17 so that the lower end portion is rotatably supported by the step floor 17. A seat that supports the seat pipe 21 so as to maintain the adjusted angle between the seat pipe 21 and the step floor 17 while allowing the angle of the seat pipe 21 in the front-rear direction to the step floor 17 to be adjustable. Since the pipe support means 22 is provided, the seat pipe 21 tilts back and forth, and the tilt position is supported by the seat pipe support means 22. Thus, the position of the riding seat 20 supported by the upper end portion of the seat pipe 21 can be largely adjusted in the front-rear and up-down directions, and the degree of freedom in adjusting the position of the riding seat 20 can be increased. .

  The seat pipe support means 22 is disposed so as to extend up and down behind the seat pipe 21 and has a link member 27 whose lower end is rotatably supported by the step floor 17, and the seat pipe 21. Since it includes a gripping member 28 that is pivotally connected to the upper end of the link member 27 so as to be fixedly gripped so that its position along the longitudinal direction can be adjusted, the step floor 17, the seat pipe 21, and the link The member 27 has a truss structure, and the support strength of the seat pipe 21 can be increased. For this reason, it is possible to avoid the enlargement of the seat pipe 21 in order to increase the strength, and to ensure a large space on the step floor 17, thereby improving the passenger's getting on / off property.

  Further, since the riding seat 20 is supported on the upper end portion of the seat pipe 21 so that the relative posture with respect to the seat pipe 21 can be adjusted, the riding seat 20 can be used according to a change in angle of the seat pipe 21 with respect to the step floor 17. The posture of the seat 20 with respect to the seat pipe 21 can be changed to improve the seating comfort of the occupant.

  The seat pipe 21 includes an outer pipe 23 whose lower end is rotatably supported on the step floor 17 and an upper end thereof in the outer pipe 23 so that the riding seat 20 is supported on the upper end. The outer pipe 23 and the inner pipe 24 are slidably fitted from a portion, and the outer pipe 23 and the inner pipe 24 are clamped in a co-tightened state in which the position of the inner pipe 24 relative to the outer pipe 23 is determined. Since it is gripped by the member 28, the length of the seat pipe 21 can be easily changed to adjust the position of the riding seat 20 in a wider range, and the degree of freedom of adjustment of the position of the riding seat 20 can be increased. It can be further increased.

  Further, since the loading platform 11 that abuts the seat pipe 21 or the riding seat 20 from the rear with the seat pipe 21 tilted to the maximum extent is provided at the rear portion of the vehicle body frame F, the seat pipe 21 can be maximized. The posture inclined rearward can be stably maintained, and the space between the seat pipe 21 and the loading platform 11 can be used as an article mounting portion to improve the loadability.

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

  For example, the upper ends of the pair of left and right link members 47 may be connected to the gripping member 28 so as to be able to rotate around an axis different from the rotation axis of the operation lever 30.

DESCRIPTION OF SYMBOLS 11 ... Loading platform 17 ... Step floor 20 ... Riding seat 21 ... Seat pipe 22 ... Seat pipe support means 23 ... Outer pipe 24 ... Inner pipe 27 ... Link member 28 ... gripping member F ... body frame WF ... front wheel WR ... rear wheel

Claims (5)

  A low floor type step floor (17) that allows an occupant to straddle is supported on the vehicle body frame (F) so as to be disposed between the front wheel (WF) and the rear wheel (WR), and the step floor (17 In a motorcycle in which a seat pipe (21) that supports a passenger seat (20) on which an occupant sits with its upper end supported on an upper end extends upward from the step floor (17), the seat pipe A lower end of (21) is rotatably supported on the step floor (17), and the step floor (17) of the seat pipe (21) is interposed between the seat pipe (21) and the step floor (17). A seat pipe support means (22) for supporting the seat pipe (21) so as to maintain an adjusted angle while allowing an angle in the front-rear direction to be adjustable is provided. Movable sheet structure in a motorcycle, characterized in that it is.   The seat pipe support means (22) is disposed so as to extend vertically behind the seat pipe (21), and a lower end portion thereof is rotatably supported by the step floor (17). And a gripping member (28) rotatably connected to the upper end of the link member (27) so as to fixably grip the seat pipe (21) along its longitudinal direction. The movable seat structure in a motorcycle according to claim 1, comprising:   The seat (20) for riding is supported by the upper end part of the seat pipe (21) so that the relative posture with respect to the seat pipe (21) can be adjusted. The movable seat structure in motorcycles.   The seat pipe (21) has an outer pipe (23) whose lower end is rotatably supported on the step floor (17), and the ride seat (20) is supported on the upper end. The inner pipe (24) is slidably fitted into the outer pipe (23) from its upper end, and the outer pipe (23) and the inner pipe (24) are connected to the outer pipe (23). The movable seat structure in a motorcycle according to claim 2, wherein the movable pipe structure is gripped by the gripping member (28) in a co-tightened state in which the position of the inner pipe (24) is determined.   A loading platform (11) that comes into contact with the seat pipe (21) or the riding seat (20) from the rear in a state where the seat pipe (21) is tilted rearward as much as possible is located at the rear portion of the vehicle body frame (F). The movable seat structure in the motorcycle according to any one of claims 1 to 4, wherein the movable seat structure is provided.

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