JP4574381B2 - Step structure for motorcycle driver - Google Patents

Description

  The present invention relates to a step structure for a driver of a motorcycle.

  Conventionally, various devices have been devised for the step of placing the feet of a motorcycle driver. For example, in order to reduce the driver's feeling of discomfort due to vehicle body vibration transmitted to a motorcycle step, a dynamic damper is formed by holding a weight inside the step via an elastic member, thereby reducing vehicle body vibration. An anti-vibration structure has been proposed (see, for example, Patent Document 1).

In addition, when the driver turns the vehicle body at a predetermined inclination angle or more, the bank sensor provided at the tip of the step comes into contact with the road surface, and the vibration at the time of contact is transmitted to the driver or a contact sound is generated. Thus, there has been proposed one that allows the driver to sense the limit of the bank (see, for example, Patent Document 2).
Japanese Utility Model Publication No. 60-46392 (page 2-5, Fig. 1-2) JP 2004-268774 A (pages 2-5, 3-6)

  By the way, in the motorcycle described in Patent Document 1, the arrangement of the weight is restricted by the shape of the step, and there is a problem that the step becomes larger when the weight is made larger. Also, in the case where the motorcycle described in Patent Document 2 is provided with an anti-vibration structure, if a dynamic damper is configured inside the step as in Patent Document 1 or if a dynamic damper is configured below the step, either However, there is a problem that the steps are enlarged.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vibration isolation structure without increasing the size of a step and for a driver of a motorcycle having a bank sensor. It is to provide a step structure.

In order to achieve the above object, the invention according to claim 1 is a step structure for a motorcycle driver, wherein the dynamic damper that reduces vibration transmitted to the step and the motorcycle turn at a predetermined inclination angle or more. And a bank sensor that allows the driver to sense the contact, and the dynamic damper and the bank sensor are integrally attached to the tip of the step and below, the dynamic damper includes a weight and It has an elastic member, and the weight is constituted by being attached to the step bar of the step by the fastening member via the elastic member, and the fastening member constitutes a road surface contact portion of the bank sensor that contacts the road surface. It is characterized by.

The invention according to claim 2 is configured in addition to the configuration of claim 1, the dynamic damper includes a weight and an elastic member, and the weight is attached to the step bar of the step by a fastening member via the elastic member, The elastic member is formed integrally with the step rubber of the step.

The invention according to claim 3, in addition to the first aspect, the dynamic damper has a weight and an elastic member, the weight is constituted by attaching the step bar step by fastening member via the elastic member, The weight includes a fixing member that fixes the step rubber of the step.

  According to the invention of claim 1, since the dynamic damper is attached to the tip of the step and below, it is possible to provide a vibration isolation structure without increasing the size of the step, and to the tip of the step. Because it is attached, the vibration reduction effect is great. Further, since the dynamic damper and the bank sensor are integrally attached, the bank sensor can be provided without increasing the number of parts, and an increase in cost and weight can be suppressed.

In addition , the fastening member for attaching the dynamic damper to the step bar constitutes the road surface contact portion of the bank sensor that comes into contact with the road surface, so that the contact feeling of the road surface can be directly transmitted to the step bar.

According to the invention of claim 2 , since the elastic member is formed integrally with the step rubber of the step, the number of parts can be reduced and the assembling property can be improved.

According to the invention of claim 3 , since the weight also has a fixing member for fixing the step rubber of the step, the number of parts can be reduced, the assembling property can be improved, and the weight of the weight can be further secured. .

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.

  FIG. 1 is a perspective view showing a motorcycle according to the present invention. The motorcycle 10 includes a body frame 11, a pair of left and right front forks 12 that are steerably supported by a front end portion of the body frame 11, a steering handle 13 that is coupled to an upper end portion of the front fork 12, The front wheel 14 is rotatably attached to the lower portion of the fork 12, and the front fender 15 is supported by the front fork 12 and covers the upper side of the front wheel 14.

The motorcycle 10 includes an engine 16 suspended from the body frame 11, a fuel tank 17 disposed at the upper part of the body frame 11, and an occupant seat 18 disposed behind the fuel tank 17 and seated by a driver. The swing arm 19 is attached to the rear part of the vehicle body frame 11 so as to be movable up and down, and the rear wheel 20 is attached to the rear part of the swing arm 19 so as to be rotatable and rotates by the driving force of the engine 16.
Here, 21 is a front cowl, 22 is a side cowl, 23 is an exhaust pipe, and 24 is a silencer.

  Further, the motorcycle 10 includes a pair of left and right step brackets having a substantially triangular shape that is attached to the body frame 11 between the front wheel 14 and the rear wheel 20 directly or as shown in FIG. The driver's step structure 30 is attached indirectly via 25. A brake pedal 26 and a brake master cylinder 27 are disposed in the vicinity of the step bracket 25 on the right side of the vehicle body shown in the figure.

  As shown in FIG. 3, the step structure 30 has a U-shaped step holder 32 attached to the vehicle body frame 11 or the step bracket 25 via a bolt 31, and the step holder 32 tilts upward by a step pin 33. A step 35 that can be attached and urged to maintain a horizontal position by a return spring 34 disposed around the step pin 33, a dynamic damper 36 that reduces vibration transmitted to the step 35, and a motorcycle And a bank sensor 37 that makes contact with the road surface when turning at an inclination angle or more and makes the driver sense this contact.

  Step 35 includes a step bar 38, a step rubber 39 that is disposed on the step bar 38 and places a driver's feet, and a step plate 40 that is a fixing member for fixing the step rubber 39 to the step bar 38. .

  The step bar 38 is an integrally molded product such as aluminum casting, and includes a U-shaped base portion 38a connected to the step holder 32 via a step pin 33, and extends in the width direction of the vehicle body. A thinned portion 38b is formed at the intermediate portion of the step bar 38 in the vehicle width direction.

  The step rubber 39 is formed in a hollow shape that opens at one end, and the bottom 39 a has a shape substantially along the upper surface of the step bar 38. A step plate 40 is accommodated in the space 38 b of the step rubber 39.

  The step bar 38 and the step rubber 39 are respectively formed with two insertion holes 38c and 39c (only one is shown) along the width direction of the vehicle body, and a collar 41 is formed in the insertion hole 39c. It is attached. In the step rubber 39, two bolts 42 inserted from below the step bar 38 are fastened to nuts 43 welded to the step plate 40 in the step rubber 39 through the two insertion holes 38c and 39c. Then, it is fixed to the step bar 38.

  The dynamic damper 36 and the bank sensor 37 are integrally attached to the tip of the step 35 and the same position below. In the dynamic damper 36, an annular damper weight 45, which is a weight, is fitted around an annular rubber member 44, which is an elastic member, and a collar collar 46 is inserted inside the rubber member 44. The rubber member 44 has flange portions 44 a and 44 a at both ends in the axial direction, and prevents the damper weight 45 from interfering with the step bar 38 and the collar 46 with the hook. Then, a bolt 47 as a fastening member is fastened to a female screw hole 38d formed obliquely at the lower end of the end of the step bar 38 through a collar 46, and the damper weight 45 is attached to the step bar 38 through a rubber member 44. It is attached.

  The dynamic damper 36 configured in this manner can reduce vibration transmitted to the step 35 and can be attached to the tip of the step 35, so that the vibration reduction effect of the damper weight 45 can be improved. The hardness of the rubber member 44 and the mass of the damper weight 45 are arbitrarily set according to the vibration conditions.

  The bolt 47 has a sufficient length to ensure the mass of the damper weight 45 and to be securely fastened to the female screw hole 39d. The head 47a of the bolt 47 protruding from the collar with collar 46 constitutes a road surface contact portion of the bank sensor 37, and when the motorcycle turns at a predetermined inclination angle or more, the road surface is the first on the portion other than the tire. Contact with. Thereby, vibration or contact sound at the time of contact is transmitted to the driver, and the driver is allowed to sense the limit of the bank.

  As described above, according to the motorcycle driver step structure 30 according to the present embodiment, the dynamic damper 36 that reduces the vibration transmitted to the step 35 and the motorcycle turn at a predetermined inclination angle or more. A bank sensor 37 that is in contact with the road surface and that allows the driver to sense the contact is integrally attached to the tip of step 35 and below. Accordingly, since the dynamic damper 36 is attached to the tip of the step 35 and below, it is possible to provide a vibration-proof structure without increasing the size of the step 35. Further, the dynamic damper 36 is attached to the tip of the step 35. Therefore, the vibration reduction effect is great. Further, since the dynamic damper 36 and the bank sensor 37 are integrally formed, the bank sensor 37 can be provided without increasing the number of parts, and an increase in cost and weight can be suppressed.

  Further, since the bolt 47 for attaching the dynamic damper 36 to the step bar 38 constitutes a road surface contact portion of the bank sensor 37 that contacts the road surface, the road surface contact feeling can be directly transmitted to the step bar 39.

(Second Embodiment)
Next, a step structure for a motorcycle driver according to the second embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected about a part equivalent to 1st Embodiment, and description is abbreviate | omitted or simplified.

  The step structure 50 of the present embodiment is different from the first embodiment in the configuration of the dynamic damper 51 and the bank sensor 52. The dynamic damper 51 and the bank sensor 52 are integrally attached to the tip of the step 35 and the same position below. In the dynamic damper 51, an annular damper weight 54 that is a weight is fitted and fixed around an annular rubber member 53 that is an elastic member, and a collar 55 is inserted inside the rubber member. The collar 55 is formed longer than the length in the axial direction of the rubber member 53 so that the rubber member 53 and the damper weight 54 are arranged with a gap in the axial direction from the tip side bottom surface 38e of the step bar 38. The bolt 56 as a fastening member is fastened to the female screw hole 38 d of the step bar 38 via the collar 55, and the damper weight 54 is attached to the step bar 38 via the rubber member 53. Therefore, as in the first embodiment, the dynamic damper 51 can reduce vibration transmitted to step 35.

  The damper weight 54 is formed with an axial length so as to cover the head portion 56a of the bolt 56, and a curved portion 54a that is chamfered with a roundness is formed on the outer peripheral surface of the lower end. In addition, on the inner side in the vehicle width direction of the other end located above, a protrusion 54b which is a contact portion protruding in the axial direction is formed.

  For this reason, the curved portion 54a of the damper weight 54 constitutes a road surface contact portion of the bank sensor 37, and when the motorcycle turns at a predetermined inclination angle or more, it first contacts the road surface at a portion other than the tire. Here, since the damper weight 54 is supported by the rubber member 53, the initial impact when contacting the road surface is alleviated. After the curved portion 54a comes into contact with the road surface, the motorcycle further inclines, and when a predetermined load is applied from the road surface, the damper weight 54 inclines inward in the vehicle body width direction, so that the projection 54b of the damper weight 54 The step bar 38 comes into contact with the bottom surface 38e on the front end side, and the contact feeling of the road surface is transmitted to the step bar 38.

As described above, according to the motorcycle step structure 50 of the present embodiment, the road surface contact portion of the bank sensor 52 where the damper weight 54 contacts the road surface, and the damper weight 54 receives a predetermined load. Since the projection 54b comes into contact with the step bar 38 at the time, the initial impact due to contact with the road surface can be reduced, and sound and vibration at the time of contact can be reduced. In addition, when a predetermined load is applied from the road surface, the damper weight 54 provided with the road surface contact portion and the step bar 38 come into contact with each other without the rubber member 53, so that the road surface feels directly on the step bar 38. I can tell you.
Other configurations and operations are the same as those in the first embodiment.

(Third embodiment)
Next, a step structure for a motorcycle driver according to a third embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected about a part equivalent to 1st Embodiment, and description is abbreviate | omitted or simplified.

  The step structure 60 of the present embodiment includes a step holder 32 and a step 61 attached to the step holder 32 so as to be tiltable upward by a step pin 33 and biased so as to maintain a horizontal position by a return spring 34. , A dynamic damper 62 that reduces vibration transmitted to step 61, and a bank sensor 63 that makes contact with the road surface when the motorcycle turns at a predetermined inclination angle or more and makes the driver sense this contact.

  In step 61 of this embodiment, as in the first embodiment, the step bar 64 includes a U-shaped base portion 64a connected to the step holder 32 via the step pin 33 and extends in the width direction of the vehicle body. On the other hand, the step rubber 65 is attached to the step bar 64 so as to surround the step bar 64.

  The step rubber 65 is formed in a hollow shape with one end opened, and a recess 65a for attaching a step plate 66, which is a fixing member, is formed at the bottom. The step bar 64 and the step rubber 65 are each formed with two female screw holes 64b and an insertion hole 65b (only one is shown), and a collar 67 is attached to the insertion hole 65b. After the step rubber 65 is mounted so as to cover the step bar 64, the step plate 66 is assembled into the recess 65a of the step rubber 65, and two bolts 67 are inserted into the female screw hole 64b of the step bar 64 through the insertion hole 65b. Screwed on. Thereby, the step rubber 65 is fixed to the step bar 64 so as to be sandwiched between the step bar 64 and the step plate 66.

  As in the third embodiment, the dynamic damper 62 and the bank sensor 63 are integrally attached to the tip of step 61 and the same position below. In the dynamic damper 62, an annular rubber member 69, which is an elastic member, is formed integrally with the lower end of the step rubber 65. An annular damper weight 70, which is a weight, is fitted around the rubber member 69, and the bolt 71, which is a fastening member, passes over the collar 72 into which the rubber member 69 is inserted. Fastened to the female screw hole 64c. Therefore, as in the first embodiment, the damper weight 70 is attached to the step bar 64 via the rubber member 69, so that the dynamic damper 62 is configured and vibration transmitted to the step 61 can be reduced.

  Further, the head 71a of the bolt 71 constitutes a road surface contact portion of the bank sensor 63, as in the first embodiment, and when the motorcycle turns at a predetermined inclination angle or more, the road surface first contacts the road surface at a portion other than the tire. Touching and the road surface contact feeling is directly transmitted to the step bar 64.

As described above, according to the motorcycle driver step structure 60 of the present embodiment, the rubber member 69 is formed integrally with the step rubber 65 of step 61, so that the number of parts can be reduced. Assembling property can be improved.
Other configurations and operations are the same as those in the first embodiment.

(Fourth embodiment)
Next, with reference to FIG. 6, a step structure for a motorcycle driver according to a fourth embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected about the part equivalent to 1st and 3rd embodiment, and description is abbreviate | omitted or simplified.

  In the step structure 80 of the present embodiment, the dynamic damper 83 and the bank sensor 63 are integrally attached to the tip of the step 81 and the same position below the step plate as in the third embodiment. The second embodiment is different from the third embodiment in that 82 is formed integrally with an annular damper weight 84 that is a weight of the dynamic damper 83, and the damper weight 84 also has a step plate 82.

  The step plate 82 is formed to be slightly thick, is disposed at the bottom of the step rubber 65, and is fastened by two bolts 67 with the step rubber 65 sandwiched between the step plate 82 and the step bar 64. . A rubber bush 85 with a hook is attached to the through hole 82 a of the step plate 82.

  In the dynamic damper 83, as in the third embodiment, an annular rubber member 69, which is an elastic member, is formed integrally with the lower end of the step rubber 65, and the step plate 82 is integrated around the rubber member 69. The damper weight 84 is fitted. Further, the bolt 71 is fastened to the female screw hole 64c of the step bar 64 through a collar 69 with a hook inserted into the rubber member. Therefore, the damper weight 84 is attached to the step bar 64 via the rubber member 69, whereby the dynamic damper 83 is configured, and the vibration transmitted to the step 81 can be reduced.

  Further, the damper weight 84 is integrated with the step plate 82, and the step plate 82 is fixed to the step rubber 65 via the rubber bush 85. Therefore, the step plate 82 also functions as the damper weight 84, and the damper weight 84 The weight can be increased. Further, as in the third embodiment, the head 71 a of the bolt 71 constitutes a road surface contact portion of the bank sensor 63.

As described above, according to the motorcycle driver's step structure 80 of the present embodiment, the damper weight 84 also has the step plate 82 for fixing the step rubber 65 of the step 81, thereby reducing the number of parts. As a result, the assemblability can be improved and the weight of the damper weight 84 can be further secured.
Other configurations and operations are the same as those in the first and third embodiments.

  In addition, this invention is not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

1 is a perspective view showing an example of a motorcycle to which the present invention is applied. It is a perspective view which shows the attachment state of the step structure for drivers | operators which concerns on this invention. It is a fragmentary sectional view showing the step structure for drivers concerning a 1st embodiment of the present invention. It is a fragmentary sectional view showing the step structure for drivers concerning a 2nd embodiment of the present invention. It is a fragmentary sectional view showing the step structure for drivers concerning a 3rd embodiment of the present invention. It is a fragmentary sectional view showing the step structure for drivers concerning a 4th embodiment of the present invention.

Explanation of symbols

10 Motorcycle 30, 50, 60, 80 Step structure for driver 35, 61, 81 Step 36, 51, 62, 83 Dynamic damper 37, 52, 63 Bank sensor 38, 64 Step bar 39, 65 Step rubber 40, 66 , 82 Step plate (fixing member)
44, 53, 69 Rubber member (elastic member)
45, 54, 70, 84 Damper weight 47, 56, 71 Bolt (fastening member)

Claims (3)

A step structure (30 , 60 , 80) for a motorcycle driver,
A dynamic damper (36, 62, 83) for reducing vibration transmitted to the step (35, 61, 81) ;
Bank sensors (37, 63) that contact the road surface when the motorcycle turns at a predetermined inclination angle or more, and allow the driver to detect the contact;
With
The dynamic damper (36, 62, 83) and the bank sensor (37, 63) are integrally attached to the tip of the step (35, 61, 81) and below.
The dynamic damper (36, 62, 83) has a weight (45, 70, 84) and an elastic member (44, 69), and the weight (45, 70, 84) is the elastic member (44, 69). It is comprised by attaching to the step bar (38, 64) of the said step (35, 61, 81) by a fastening member (47, 71) via,
Step structure (30, 60, 80) for a motorcycle driver, wherein the fastening members (47, 71) constitute a road surface contact portion of the bank sensor (37, 63) in contact with the road surface. . The step structure (60, 80) for a motorcycle driver according to claim 1, wherein the elastic member (69) is formed integrally with a step rubber (65 ) of the step (61, 81). ) The step structure (80) for a motorcycle driver according to claim 1, wherein the weight (84) also has a fixing member (82) for fixing the step rubber (65 ) of the step (81 ). .

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