JP2010260372A - Saddle riding type vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a saddle riding type vehicle which facilitates securement of a space in front of a passenger to a passenger seat at a collision. <P>SOLUTION: The saddle riding type vehicle is equipped with: a stopper mechanism 46 which is provided in front of the front section of a seat 28 for suppressing a forward movement velocity of the passenger 42 at the collision; a front bumper 37 which is fixed on a vehicle body frame 11 so as to extend in front of a head pipe 12 above a front wheel 32; and a wheel stopper 38 which is arranged behind the front wheel 32 for regulating the front wheel 32 from moving rearward and fixed on the vehicle body frame 11 so as to be curved rearward in a projection state. The wheel stopper 38 is provided on a horizontal line extending in the longitudinal direction through the axle 33 of the front wheel 32 in a plan view. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an improvement of a saddle riding type vehicle.

  2. Description of the Related Art As a conventional saddle type vehicle, a vehicle having a vehicle front structure that absorbs a load smoothly while reducing interference between a front wheel and a body frame at the time of a collision is known (for example, see Patent Document 1). .

  According to FIG. 7 of Patent Document 1, a recessed portion 51 is provided at the front end of a vehicle body frame 41 disposed behind the front wheel 47 (reference numeral is the same as that in the above-mentioned Patent Document 1). The shock absorber 52 is filled inside. Thereby, the excessive load applied from the front to the front wheel 47 at the time of a collision is absorbed smoothly.

JP 2002-264866 A

On the other hand, at the time of a collision, it is desired to secure a space from the collision object to the passenger seat.
An object of the present invention is to provide a saddle-ride type vehicle that can easily secure a space from a collision object to an occupant seat at the time of a collision.

  The invention according to claim 1 is a vehicle body frame including a head pipe, a down frame extending obliquely downward and rearward from the head pipe, and a lower frame extending rearward from a lower end of the down frame, and is supported by the vehicle body frame so as to be steerable. In a saddle-ride type vehicle having a front fork, a front wheel rotatably supported by the front fork, and a seat on which an occupant is seated, the front portion of the seat is used to suppress the forward movement speed of the occupant during a collision. A seat stopper provided on the front side, a front bumper fixed to the vehicle body frame so as to extend in front of the head pipe above the front wheel, and disposed behind the front wheel to restrict the front wheel from moving backward And a wheel stopper fixed to the vehicle body frame so as to bend toward the rear. Rusutoppa, characterized in that provided on a horizontal line extending in the longitudinal direction through a front wheel axle in a side view.

  The invention according to claim 2 is characterized in that the wheel stopper is composed of a plurality of steel plates.

  The invention according to claim 3 is characterized in that a floor step on which an occupant puts his / her foot is provided above the lower frame, and a wall member extending vertically is provided at the front end of the floor step.

  The invention according to claim 4 is characterized in that the front bumper is supported by the down frame, extends forward in the left and right directions, and is connected to the left and right front end portions.

  The invention according to claim 5 is characterized in that the seat stopper is swingably attached to the seat or the vehicle body so as to be in a standing state and a retracted state.

  In the invention according to claim 6, the convexly curved surface of the wheel stopper is a curved surface having a predetermined radius centered on the axis of the head pipe in plan view, and a predetermined centered on the axle of the front wheel in side view. It is formed by a curved surface having a radius.

  In the invention according to claim 1, the vehicle body frame is provided so as to extend forward of the head pipe above the front wheel and a seat stopper provided in front of the front portion of the seat in order to suppress the forward movement speed of the occupant during a collision. A front bumper fixed to the front wheel, and a wheel stopper disposed on the rear of the front wheel to restrict the front wheel from moving backward and fixed to the vehicle body frame so as to bend toward the rear, Since this wheel stopper is provided on a horizontal line extending in the front-rear direction through the axle of the front wheel in a side view, the front bumper and the wheel stopper prevent the occupant (seat, seat pad) from colliding with the front bumper. It is easy to secure the space up to and the seat pad can suppress the movement speed of the occupant forward.

  In the invention which concerns on Claim 2, since a wheel stopper consists of a some steel plate, it can obtain lightweight and big rigidity by combining a some steel plate.

  In the invention according to claim 3, a floor step on which the occupant puts his / her foot is provided above the lower frame, and a wall member extending vertically is provided at the front end of the floor step, so the occupant's foot moves forward by the wall member Can be suppressed.

  In the invention according to claim 4, since the front bumper is supported by the down frame and extends to the left and right front and the left and right front end portions are connected, the left and right width of the front bumper can be increased and the rigidity of the front bumper can be increased. Can be improved.

  In the invention according to claim 5, since the seat stopper is swingably attached to the seat or the vehicle body side so as to be in the standing state and in the retracted state, the seat stopper is in the standing state in the collision state and in the retracted state except in the collision state. By doing so, a passenger can easily get on and off.

  In the invention according to claim 6, the convexly curved surface of the wheel stopper is a curved surface having a predetermined radius centered on the axis of the head pipe in plan view and a predetermined centered on the axle of the front wheel in side view. Since it is formed with a curved surface with a radius, the front wheel when moving backward can be efficiently applied to the wheel stopper.

1 is a side view of a saddle riding type vehicle according to the present invention. 1 is a perspective view of a saddle riding type vehicle according to the present invention. 1 is a plan view of a saddle riding type vehicle according to the present invention. It is a front side view of the saddle riding type vehicle according to the present invention. It is a principal part side view of the saddle riding type vehicle which concerns on this invention. It is explanatory drawing of the front bumper which concerns on this invention. It is explanatory drawing of the wheel stopper which concerns on this invention. It is an operation view showing an operation of the saddle riding type vehicle according to the present invention.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. In the description, left, right, front, and rear indicate directions based on the driver who has boarded the vehicle. The drawings are to be viewed in the direction of the reference numerals.

Examples of the present invention will be described. The arrow (FRONT) in the figure represents the front of the vehicle.
As shown in FIG. 1, the saddle riding type vehicle 10 includes a body frame 11 having a head pipe 12, a down frame 13 extending obliquely downward and downward from the head pipe 12, and a rear from the rear end of the down frame 13. A pair of left and right rear frames 17, 18 extending obliquely upward and rearward from both ends of a cross pipe (not shown) attached to the rear end of the lower frame 14, and left and right lower portions of the down frame 13. A pair of left and right reinforcing frames 23 and 24 connected to a pair of left and right rear brackets 21 and 22 attached to the rear frames 17 and 18 extending obliquely rearward, and an upper end portion of the down frame 13 and the rear frames 17 and 18. It is composed of a pair of left and right subframes 29 and 30 that connect each of them, and can be steered to the head pipe 12 Front fork 26 is attached, the lower swingably power unit 27 is attached to the rear frame 17, the sheet 28 is attached to the upper portion of the rear frame 17.

A bar handle 31 is attached to the upper end of the front fork 26, and a front wheel 32 is attached to the lower end. Reference numeral 33 denotes an axle attached to the front fork 26 in order to rotatably support the front wheel 32.
A rear wheel 34 is attached to the rear end portion of the power unit 27, and a rear cushion unit 35 is passed between the rear portion of the power unit 27 and the rear frames 17 and 18.

A front bumper 37 is attached to the head pipe 12 and the down frame 13 so as to extend in front of the lower portion of the head pipe 12.
The front bumper 37 is a space between the collision object and the seat 42 and the occupant 42 seated on the seat when the saddle riding type vehicle 10 collides from the front (hereinafter referred to as “vehicle collision”). It is a member that secures.

  A wheel stopper 38 that protrudes toward the front wheel 32 is attached to the lower portion of the down frame 13, and the wheel stopper 38 restricts the front wheel 32 from moving backward toward the down frame 13 in the event of a vehicle collision.

  A side-view L-shaped wall member 44 disposed in front of the foot 43 of the occupant 42 mounted on the floor step 41 is attached to the down frame 13 and the lower frame 14. The movement of the foot 43 of the occupant 42 is restricted.

  A stopper mechanism 46 is attached to an intermediate portion between the rear frames 17 and 18.

  As shown in FIG. 2, the saddle riding type vehicle 10 secures a space from the collision object to the occupant 42 (seat 28) by the front bumper 37 and the wheel stopper 38 at the time of collision, and the occupant's vehicle by the stopper mechanism 46. The purpose is to suppress the forward movement speed.

As shown in FIG. 3, the wheel stopper 38 is formed to have a left-right width larger than a left-right width of the front fork 26 disposed in front of the wheel stopper 38, and restricts rearward movement of the front wheel 32.
The upper portion of the stopper mechanism 46 is exposed to the front portion 28b of the seat 28, and is arranged in a state where it can be moved by an impact at the time of a vehicle collision.

  As shown in FIG. 4, the front bumper 37 extends horizontally from the vehicle body frame 11 and is attached to the bumper bracket 51 attached to the front portion of the head pipe 12 and the side portion of the down frame 13.

  The wheel stopper 38 has a rear portion attached to the lower side portion of the down frame 13, a front end formed in an arc shape so as to easily receive the front wheel 32, and a horizontal line 50 extending in the front-rear direction through the axle 33 of the front wheel 32. Is arranged.

  The wall member 44 is an L-shaped member in which the vertical wall portion 44a and the horizontal wall portion 44b are integrally formed, and the vertical wall portion 44a covers the front of the leg portion of the occupant (see FIG. 1). The horizontal wall 44b is provided along the upper surface of the floor step 41 (see FIG. 1).

  As shown in FIG. 5, the stopper mechanism 46 has a lower portion disposed inside the vehicle body cover 48 and a base portion 55 attached to attachment brackets 54, 54 provided on the rear frames 17, 18, and the base portion 55. The stopper arm 57 is swingably attached to a support shaft 56 provided on the vehicle. When the passenger gets on and off, the stopper arm 57 is in the position of the solid line in the figure, and is raised to the position of the two-dot chain line during traveling. To use.

  The stopper arm 57 includes an arm main body 61 and a pad 62 attached to the arm main body 61. When the stopper arm 57 is stored sideways as indicated by a solid line, the upper surface 62a of the pad 62 is the seat 28. The upper surface 62a of the pad 62 is not obstructed to get in and out of the seat 28 because it is located so as to be continuous with the upper surface 28a. Toward the lower abdomen, control the forward movement speed.

  FIG. 6A is a plan view of the front bumper 37. The front bumper 37 includes an upper bumper frame 71 and a lower bumper frame 72 formed so that the tip ends thereof are tapered, and a rear side from the front end of the upper bumper frame 71. A center bumper frame 73 that extends straight and a front plate 74 attached to the front ends of the upper bumper frame 71 and the lower bumper frame 72.

  The upper bumper frame 71 has a frame front portion 71a disposed at the front end so as to extend in the vehicle width direction, and extends from the both ends of the frame front portion 71a so as to be separated from each other diagonally outward and rearward. Furthermore, it consists of a pair of frame side parts 71b and 71c extended so that it may mutually approach diagonally back inward.

  Similarly, the lower bumper frame 72 also has a frame front portion 72a disposed at the front end so as to extend in the vehicle width direction, and extends from the both ends of the frame front portion 72a so as to be separated from each other obliquely outward and rearward. It further includes a pair of frame side portions 72b and 72c that extend so as to approach each other rearward and obliquely inward.

  FIG. 6B is a side view of the front bumper 37, and the upper bumper frame 71 and the center bumper frame 73 extend in a straight line in the front-rear direction, and the center bumper frame 73 is rear end with respect to the upper bumper frame 71. It is inclined so that the side is positioned upward.

  The lower bumper frame 72 is inclined such that the front half 72e is disposed in parallel with the upper bumper frame 71 and the rear half 72f is rearwardly lowered. Reference numeral 76 is a coupling piece attached to the rear end portions of the upper bumper frame 71 and the lower bumper frame 72 for coupling to the vehicle body frame 11 (see FIG. 4) with a bolt, and 77 is a bumper bracket 51 of the head pipe 12. It is a rear end mounting piece provided at the rear end of the center bumper frame 73 for mounting (see FIG. 4).

  The front plate 74 connects the front end of the upper bumper frame 71 and the front end of the lower bumper frame 72, and increases the area of the front end of the front bumper 37 to reduce the surface pressure at the time of collision.

  FIG. 7A is a plan view of the wheel stopper 38. The wheel stopper 38 has a curved plate 81 curved so as to protrude rearward, and a rear end 81a of the curved plate 81 has a front end attached and extends rearward. The curved plate 81 includes a pair of left and right rear extending plates 82 and 83, and a pair of left and right side plates 84 and 85 passed to the side portions of the curved plate 81 and the rear extending plates 82 and 83. The rear extension plates 82 and 83 and the side plates 84 and 85 are formed by bending a steel plate, respectively.

  The front surface 81b of the curved plate 81 is a curved surface having a radius R1 with the axis 12a of the head pipe 12 (see FIG. 1) as the center, and is formed in a shape along the left and right swing locus at the rear end of the front wheel 32. .

FIG. 7 (b) is a side view of the wheel stopper 38, and the curved plate 81 of the wheel stopper 38 is curved in a concave shape slightly upward and obliquely upward. Therefore, when the front wheel 32 (see FIG. 1) hits the curved plate 81, the front wheel 32 is difficult to get under the wheel stopper 38. Reference numerals 82a and 83a (only the reference numeral 82a on the near side is shown. Reference numeral 83a refers to FIG. 7A) are bolt insertion holes for mounting to the down frame 13 with bolts.
The front surface 81b of the curved plate 81 is a curved surface having a radius R2 centered on the axle 32a of the front wheel 32 when the front wheel 32 moves rearward when the vehicle collides.

Next, the operation of the saddle riding type vehicle 10 described above will be described.
As indicated by the white arrows in FIG. 8, when the saddle-ride type vehicle 10 collides with a collision object 90 such as a vehicle or a stationary object from the front, first, as indicated by the arrows A and B, the front wheels 32 and the front bumper are first. As a result, the front wheel 32 moves rearward and hits the wheel stopper 38 as shown by an arrow C, and the rearward movement of the front wheel 32 is restricted. It is transmitted to the body frame 11 of the saddle riding type vehicle 10 via the front bumper 37. At this time, the front wheel 32, the front fork 26, and the front bumper 37 are deformed to secure a space from the collision object 90 to the occupant 42 while absorbing a part of the collision energy.

Although the occupant 42 tries to move forward, as indicated by an arrow D, the movement speed of the occupant 42 forward is suppressed by the stopper arm 57 of the stopper mechanism 46.
Further, as indicated by an arrow E, the foot 43 of the occupant 42 moves forward, but when the foot 43 hits the wall member 44, further forward movement is prevented.
Furthermore, as shown by an arrow F, the rear part of the vehicle body of the saddle riding type vehicle 10 is lifted, but the lift of the rear part of the vehicle body can be further reduced by the action of the front bumper 37 described above.

  Due to the protection of the vehicle body frame 11 by the front bumper 37, the movement restriction of the front wheel 32 to the rear by the wheel stopper 38, and the movement restriction of the occupant 42 to the front by the stopper mechanism 46 and the wall member 44, It becomes easy to ensure the distance with the passenger 42.

  As shown in FIGS. 1 and 4, the vehicle body frame 11 includes the head pipe 12, the down frame 13 extending rearward and obliquely downward from the head pipe 12, and the lower frame 14 extending rearward from the lower end of the down frame 13. A straddle-type vehicle 10 including a front fork 26 that is steerably supported by the vehicle body frame 11, a front wheel 32 that is rotatably supported by the front fork 26, and a seat 28 on which an occupant 42 is seated. A stopper mechanism 46 as a seat stopper provided in front of the front portion of the seat 28 in order to suppress the forward movement speed of the occupant 42 at the time of a collision, and the vehicle body so as to extend in front of the head pipe 12 above the front wheel 32. The front bumper 37 fixed to the frame 11 and the front wheel 32 are controlled in order to restrict the rear wheel 32 from moving backward. And a wheel stopper 38 fixed to the vehicle body frame 11 so as to be curved convexly toward the rear, and this wheel stopper 38 passes back and forth through the axle 33 of the front wheel 32 in a side view. Since it is provided on the horizontal line 50 extending in the direction, it is easy to secure a space from the collision object 90 to the occupant 42 (seat 28, pad 62) by the front bumper 37 and the wheel stopper 38 at the time of the collision of the saddle riding type vehicle 10. In addition, the pad 62 can suppress the movement speed of the occupant 42 forward.

  As shown in FIGS. 7A and 7B, the wheel stopper 38 includes a curved plate 81, a rear extension plate 82, 83 and side plates 84, 85 as a plurality of steel plates. By combining the curved plate 81, the rear extension plates 82 and 83, and the side plates 84 and 85, light weight and great rigidity can be obtained.

  As shown in FIGS. 1 and 4, a floor step 41 on which the occupant 42 puts the foot 43 is provided above the lower frame 14, and a wall member 44 extending vertically at the front end of the floor step 41, specifically, a wall member Since the 44 vertical wall portions 44a are provided, the wall member 44 can prevent the foot 43 of the occupant 42 from moving forward.

  As shown in FIGS. 4 and 6A, fourthly, the front bumper 37 is supported by the down frame 14 and extends forward in the left and right directions so that the left and right front ends are connected. The width can be increased and the rigidity of the front bumper 37 can be improved.

  As shown in FIG. 5, the stopper mechanism 46, specifically, the stopper arm 57, is swingably attached to the seat 28 or the vehicle body side (rear frames 17 and 18 side) so as to be in a standing state and a retracted state. Therefore, the occupant 42 can easily get on and off by setting the stopper mechanism 46 in the standing state at the time of collision and in the retracted state at times other than the collision.

  As shown in FIGS. 7A and 7B, the front surface 81b as a convexly curved surface of the wheel stopper 38 has a predetermined center around the axis 12a of the head pipe 12 (see FIG. 1) in plan view. Since it is a curved surface with a radius R1 and is formed with a curved surface with a predetermined radius R2 centering on the axle 33 of the front wheel 32 (see FIG. 1) in a side view, the front wheel 32 when moving rearward is efficiently wheeled. It can be applied to the stopper 38.

  The present invention is suitable for saddle riding type vehicles.

  DESCRIPTION OF SYMBOLS 10 ... Saddle type vehicle, 11 ... Body frame, 12 ... Head pipe, 12a ... Axis, 13 ... Down frame, 14 ... Lower frame, 26 ... Front fork, 28 ... Seat, 32 ... Front wheel, 33 ... Axle, 37 ... Front bumper, 38 ... wheel stopper, 81b ... convexly curved surface (front surface), 41 ... floor step, 42 ... occupant, 43 ... foot, 44 ... wall member, 46 ... seat stopper (stopper mechanism), 50 ... horizontal line, 81 ... Steel plate (curved plate), 82, 83 ... Steel plate (rear extension plate), 84, 85 ... Steel plate (side plate), R1, R2 ... Radius.

Claims (6)

A vehicle body frame including a head pipe, a down frame extending rearward and downward from the head pipe, and a lower frame extending rearward from the lower end of the down frame, a front fork supported by the vehicle body in a steerable manner, and the front fork A straddle-type vehicle including a front wheel rotatably supported by the vehicle and a seat on which an occupant is seated,
A seat stopper provided in front of the front portion of the seat to suppress the forward movement speed of the occupant at the time of a collision, and fixed to the vehicle body frame so as to extend in front of the head pipe above the front wheel. A front bumper, and a wheel stopper disposed on the rear side of the front wheel for restricting the front wheel from moving rearward and fixed to the vehicle body frame so as to bend toward the rear,
The straddle-type vehicle, wherein the wheel stopper is provided on a horizontal line extending in the front-rear direction through the axle of the front wheel in a side view.   The straddle-type vehicle according to claim 1, wherein the wheel stopper is made of a plurality of steel plates.   The straddle-type vehicle according to claim 1, wherein a floor step on which the occupant places his / her foot is provided above the lower frame, and a wall member extending vertically is provided at a front end of the floor step. .   The straddle-type vehicle according to any one of claims 1 to 3, wherein the front bumper is supported by the down frame, extends forward in the left and right directions, and is connected to left and right front end portions.   The straddle-type vehicle according to any one of claims 1 to 4, wherein the seat stopper is swingably attached to the seat or the vehicle body so as to be in a standing state and a retracted state. .   The convexly curved surface of the wheel stopper is a curved surface with a predetermined radius centered on the axis of the head pipe in a plan view, and a curved surface with a predetermined radius centered on the axle of the front wheel in a side view. The straddle-type vehicle according to any one of claims 1 to 5, wherein the straddle-type vehicle is formed.

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