JP3654276B2 - Seating seat opening device for motorcycles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seating seat opening device for a motorcycle, and more particularly to a seat hinge structure.
[0002]
[Prior art]
Conventionally, there is a torsion coil spring type technology related to an apparatus for automatically opening a seating seat of a motorcycle. As shown in FIGS. 10 and 11, a rotating shaft 41 of a seat hinge is connected to a torsion coil spring 42. The hinge bracket lower portion 43 and the hinge bracket upper portion 44 are opened by the repulsive force of the torsion coil spring 42, and the seat 45 is automatically opened.
[0003]
Further, as a technology of a device for automatically opening the seat, there is a gas damper type, and the seat is automatically opened by the repulsive force of the gas damper 47 provided on the frame 46 as shown in FIG. It is a thing.
[0004]
[Problems to be solved by the invention]
However, the coil spring-type automatic opening device for the seat cannot adjust the opening speed of the seat, causing a problem that the seat jumps rapidly.
[0005]
In addition, the gas damper type automatic opening device for the seat is expensive in gas tamper, and because the gas damper is long, the storage space is limited, and the degree of freedom in layout is low, inevitably near the gas damper. There is also a problem with the storage capacity of the storage box for storing the helmet or the like provided.
[0006]
The present invention has been made in consideration of the above-described circumstances, has a compact configuration, reduces restrictions on the layout of the constituent members, and easily opens the seat without disturbing the storage capacity of the storage box, In addition, an object of the present invention is to provide a seating seat opening device for a motorcycle that can adjust the opening speed without causing the seat to jump up and release the seat at a stable and gentle speed.
[0007]
Another object of the present invention is to provide a seating seat opening device for a motorcycle capable of adjusting a seat opening speed in a space-saving manner.
[0008]
Still another object of the present invention is to provide a seating seat opening device for a motorcycle capable of adjusting a seat opening speed at a low cost.
[0009]
Another object of the present invention is to increase the width of the hinge bearing portion, reduce the tilt due to the effect of the displacement of the bearing hole and the gap between the rotating shaft and the bearing hole, and prevent seat locking problems when opening and closing the seat. The present invention provides a seating seat opening device for a motorcycle.
[0010]
Still another object of the present invention is to provide a seating seat opening device for a motorcycle in which the width of the hinge bearing portion is widened and the torsional rigidity of the seat hinge is improved.
[0011]
[Means for Solving the Problems]
In order to solve the above-described problem, a seating seat opening device for a motorcycle according to the present invention has a storage box that can store a seat and a helmet disposed below the seat as described in claim 1. And a seat hinge provided at the front end of the seat, the seat is provided so as to be openable and closable around the rotation axis of the seat hinge, and a seat striker is provided at the rear end of the seat. In a seating seat opening device for a motorcycle equipped with a seat lock that locks the seat to fix the seat, the seat hinge includes a lower part of the seat hinge, an upper part of the seat hinge, and a rotating shaft. A plurality of bearing portions are provided at intervals in the axial direction of the rotary shaft, and the rotary shaft is rotatably supported by mounting the rotary shaft on the plurality of bearing portions. The upper part is formed separately on the left and right, and the upper part of one seat hinge is fixed to one end of the rotary shaft provided with a slit, while the other upper part of the seat hinge is rotated to the outer periphery of the other end of the rotary shaft The rotary damper and the spiral spring are provided on the outer periphery of the rotary shaft between the plurality of bearing portions below the seat hinge .
[0012]
Further, in order to solve the above-described problem , the seat opening device for a motorcycle according to the present invention bridges the left and right ends in the vehicle width direction substantially above the center of the vehicle body frame. Then, the lower part of the seat hinge (24) provided with a plurality of bearings (27a, 27b) is fixed to the frame bridge provided so as to protrude upward, and the upper part of the seat hinge (25) separately formed in the vehicle width direction. , 26) is fixed to the sheet .
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a seating seat opening device for a motorcycle according to the present invention will be described with reference to the drawings. FIG. 1 is a left side view showing an example of a motorcycle to which a seating seat opening device according to the present invention is applied.
[0015]
The motorcycle 1 is provided with front wheels 2 and rear wheels 3 on the front and rear sides, respectively, and a front fork 4 that supports the front wheels 2 is pivotally supported together with a handle bar 5 at the front head so as to be rotatable left and right.
[0016]
A low floor type foot board 6 is provided below the handle bar 5 below. A center console 7 extending in the front-rear direction is disposed at a substantially central portion in the vehicle width direction of the foot board 6 and its internal space is applied to a fuel tank, a space for storing articles, etc. (not shown).
[0017]
A seat 8 that also serves as a pillion seat is provided behind the footboard 6 from substantially the upper center of the motorcycle 1 to the upper rear. The seat 8 is supported at the front end of the seat 8 so that it can be opened and closed. A seat hinge 9 is provided, and a seat lock 10 is provided at the rear end.
[0018]
FIG. 2 is an enlarged schematic view showing the vicinity of the seat hinge 9, and a frame 11 is assembled between the front wheel 2 and the rear wheel 3. An air cleaner 12 is provided at an upper front portion in the frame 11, and a power unit 13 is provided below the air cleaner 12. In the power unit 13, an engine 15 including a spark plug 14 and a power transmission unit 16 are integrally configured. A storage box 17 is provided behind the air cleaner 12 to store a helmet 18 and the like.
[0019]
Above the air cleaner 12 and the storage box 17, the above-described seat 8 is provided. A seat hinge 9 is provided at the front end of the seat 8 so as to join the seat 8 and a frame bridge 19 to be described later, and rotate the seat 8 around the rotation center α to support the seat 8 so that it can be opened and closed. A seat lock striker 21 is provided at the rear end of the seat 8. When the seat 8 is in the closed state, the seat lock 10 and the seat lock striker 21 are locked to firmly fix the seat 8 above the air cleaner 12 and the storage box 17.
[0020]
FIG. 3 is a schematic perspective view for explaining the attachment relationship of the seat hinge. As shown in FIG. 3, the frame bridge 19 is provided by bridging the left and right ends substantially above the center of the frame 11 so as to protrude upward, and the upper end of the frame bridge 19 is flat. The lower part of the seat hinge 9 is fixed to the flat part at the upper end of the frame bridge 19. Thus, the hinge bracket lower part 24 which is the lower part of the seat hinge provided with the plurality of bearing parts 27a and 27b is fixed to the frame bridge 19.
[0021]
FIG. 4 is an AA arrow view of FIG. 3, and is an enlarged view for explaining the seat hinge 9. The seat hinge 9 includes a hinge bracket lower portion 24, a hinge bracket upper right portion 25, and a hinge bracket left upper portion 26. The seat hinge 9 according to the present embodiment has separate seat hinge upper portions 25 and 26 in the vehicle width direction. The structure is divided. The seat 8 is fixed to a hinge bracket upper right portion 25 and a hinge bracket left upper portion 26 which are upper portions of the seat hinge formed separately in the vehicle width direction.
[0022]
Two bearings 27 a and 27 b connected to the hinge bracket lower portion 24 are provided in the hinge bracket upper right portion 25 and the hinge bracket left upper portion 26 at an interval in the axial direction of the rotary shaft 29 . That is, a plurality of bearings 27a and 27b are provided in the seat hinge lower part 24 at intervals in the axial direction of the rotary shaft 29, and the rotary shaft 29 provided with the slit portion 28 is mounted on the bearings 27a and 27b. The The upper right portion 25 of one seat hinge is integrally fixed to one end portion of a rotary shaft 29 provided with a slit, while the upper left portion 26 of the other seat hinge is rotatably attached to the outer periphery of the other end portion of the rotary shaft 29. It is done.
[0023]
A rotary damper 30 and a spiral spring 31 are provided between the two bearings 27a and 27b, that is, at a substantially central position on the outer periphery of the rotary shaft 29 inside the seat hinge 9 via a washer 32, and the bearings 27a and 27b and the rotary damper 30 are provided. And the spiral spring 31 is provided on the same axis. A C-ring 34 is provided at the tip of the slit portion 28 of the rotating shaft 29 via a washer 33.
[0024]
One bearing 27a is coupled to the lower right portion 25 of the hinge bracket via a washer 35, and the other bearing 27b is coupled to the lower left portion 26 of the hinge bracket via a washer 36.
[0025]
By providing the rotary damper 30 and the spiral spring 31 on the outer periphery of the rotary shaft 29 inside the seat hinge 9 in a compact manner, it becomes possible to widen the bearings 27a and 27b, and the displacement of the holes of the bearings 27a and 27b and It is possible to reduce the inclination of the seat 8 due to the influence of the clearance between the rotary shaft 29 and the bearings 27a and 27b, and to prevent the seat lock 10 and the seat lock striker 21 from being displaced, and to prevent problems when the seat 8 is opened and closed. It is preventing. Further, the torsional rigidity of the seat hinge 9 is improved by increasing the width between the bearings 27a and 27b.
[0026]
FIG. 5 is an enlarged view for explaining the hinge bracket lower part 24. The hinge bracket lower part 24 is connected to bearings 27a and 27b protruding upward. The bearing 27a connected to the hinge bracket upper right portion 25 is bent upward and inward. The bearings 27 a and 27 b are provided with spacers 38 and 38 at the shaft mounting position of the rotary shaft 29, respectively.
[0027]
6 is an enlarged view for explaining the upper right portion 25 of the hinge bracket, and FIG. 7 is an enlarged view for explaining the upper left portion 26 of the hinge bracket. As shown in FIG. 6, the upper right portion 25 of the hinge bracket is fixed to a rotating shaft 29 provided with a lower slit portion 28. Moreover, the hinge bracket left upper part 26 is provided in the outer periphery of the spacer 38, as shown in FIG. That is, the hinge bracket upper right portion 25 and the rotary shaft 29 are configured to rotate together, and the hinge bracket left upper portion 26 provided on the outer periphery of the spacer 38 is rotatably provided on the rotary shaft 29.
[0028]
FIG. 8 is a diagram for explaining the attachment relationship of the rotary damper 30, and FIG. 9 is a diagram for explaining the attachment relationship of the spiral spring 31. As shown in FIG. 8, the rotary damper 30 is fixed to the slit portion 28 of the rotary shaft 29 and provided on the outer periphery of the rotary shaft 29. As shown in FIG. 9, the spiral spring 31 is provided on the outer periphery of the rotary shaft 29 with one end fixed to the slit portion 28 of the rotary shaft 29 and the other end fixed to the hinge bracket lower portion 24. In other words, the repulsive force of the spiral spring 31 generates an opening force when the seat 8 is opened, and the rotating damper 30 generates a buffering force when the seat 8 is opened and closed.
[0029]
The opening operation of the opening device for the seat 8 of the motorcycle 1 will be described.
[0030]
The latched seat lock 10 and seat lock striker 21 are removed, and the seat 8 starts to open around the rotation axis α by the repulsive force of the spiral spring 31. The release of the sheet 8 is performed by the repulsive force of the spiral spring 31 and the sudden jump of the sheet 8 due to the repulsive force of the spiral spring 31 is loosened by the rotary damper 30. That is, the seat 8 is smoothly opened by the repulsive force of the spiral spring 31 and the buffering action of the rotary damper 30.
[0031]
According to the present embodiment, the rotary damper 30 and the spiral spring 31 are compactly provided on the rotation shaft 29 of the rotation center α of the seat hinge 9 to constitute the opening means for the seat 8, and therefore the layout of the constituent members by the opening means Thus, the seat 8 can be opened gently and with a high-class feeling without impeding the storage capacity of the storage box 17 and without suddenly jumping up.
[0032]
In addition, according to the present embodiment, by providing the rotary damper 30 and the spiral spring 31 on the outer periphery of the rotary shaft 29 inside the seat hinge 9, the degree of freedom of arrangement of the bearings 27a and 27b is improved, and between the bearings 27a and 27b. Since the width of the seat 8 can be widened, it is possible to reduce the inclination of the seat 8 due to the displacement of the positions of the bearings 27a and 27b and the influence of the gap between the rotary shaft 29 and the bearings 27a and 27b. Deviation from the seat lock striker 21 can be prevented, and problems when the seat 8 is opened and closed can be prevented. Further, the torsional rigidity of the seat hinge 9 can be improved by increasing the width between the bearings 27a and 27b.
[0033]
【The invention's effect】
As described above, according to the seat release device for a motorcycle according to the present invention, the seat can be stably and gently opened with a compact and simple configuration, and there is a sense of quality and is inexpensive. There is an excellent effect of being.
[Brief description of the drawings]
FIG. 1 is an overall schematic diagram illustrating an embodiment of a seating seat opening device for a motorcycle according to the present invention.
FIG. 2 is an enlarged schematic view showing the vicinity of a seat hinge according to the embodiment.
FIG. 3 is a schematic diagram illustrating a seat hinge attachment state of the embodiment.
4 is an enlarged view illustrating the seat hinge according to the embodiment, which is an arrow view along the line AA in FIG. 3; FIG.
FIG. 5 is an enlarged view for explaining a lower part of the seat hinge of the embodiment.
FIG. 6 is an enlarged view for explaining an upper right portion of the seat hinge according to the embodiment.
FIG. 7 is an enlarged view for explaining an upper left portion of the seat hinge according to the embodiment.
FIG. 8 is a diagram for explaining a mounting state of the rotary damper according to the embodiment.
FIG. 9 is a view for explaining a mounting state of the spiral spring according to the embodiment.
FIG. 10 is a schematic view illustrating a conventional seat opening device for a motorcycle having a torsion spring structure.
FIG. 11 is an enlarged view showing a main part of the conventional example.
FIG. 12 is a schematic diagram illustrating a seating seat opening device for a motorcycle having a conventional gas damper structure.
[Explanation of symbols]
1 Motorcycle 8 Seat 9 Seat hinge 10 Seat lock 11 Frame 17 Storage box 18 Helmet 19 Frame bridge 21 Seat lock striker 25 Hinge bracket upper right portion 26 Hinge bracket upper left portion 29 Rotating shaft 30 Rotating damper 31 Spiral spring

Claims (2)

A storage box capable of storing a seat and a helmet arranged below the seat;
A seat hinge provided at the front end of the seat,
The seat is provided so as to be openable and closable around the rotation axis of the seat hinge,
In a seating seat opening device for a motorcycle provided with a seat striker at the rear end of the seat, and having a seat lock for locking the seat striker and fixing the seat,
The seat hinge (9) is composed of a seat hinge lower part (24), a seat hinge upper part (25, 26) and a rotating shaft (29),
A plurality of bearing portions (27a, 27b) are provided in the seat hinge lower portion (24) at intervals in the axial direction of the rotation shaft (29), and the rotation shaft (29) is provided on the plurality of bearing portions (27a, 27b). Axis mounted and supported for rotation,
The upper part of the seat hinge (25, 26) is formed as a separate body, and one upper part of the seat hinge (25) is integrally fixed to one end of the rotary shaft (29) provided with the slit, while the other The seat hinge upper part (26) is rotatably attached to the outer periphery of the other end of the rotating shaft (29),
A rotation damper (30) and a spiral spring (31) are provided on the outer periphery of a rotation shaft (29) between a plurality of bearing portions (27a, 27b) at the lower part of the seat hinge (24). A seat opening device for motorcycles. A lower part (24) of a seat hinge provided with a plurality of bearing portions (27a, 27b) is fixed to a frame bridge that is provided by bridging left and right ends in the vehicle width direction substantially above the center of the body frame and protruding upward. The seating seat opening device for a motorcycle according to claim 1, wherein the upper part of the seat hinge (25, 26) formed separately in the left and right direction in the width direction is fixed to the seat.

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