JP6907533B2 - Anti-vibration structure - Google Patents

Description

The present invention relates to a vibration-proof structure.

In Patent Document 1, a structure that requires anti-vibration support is fitted and supported in the annular groove portion of the anti-vibration rubber, and the anti-vibration rubber is supported by the support portion by a bolt via a collar, whereby the anti-vibration support is provided. A vibration-proof rubber device in which a structure requiring the above is supported by a support portion only via a vibration-proof rubber is disclosed.

Jitsukaisho 59-22343 Gazette

However, in the above-mentioned anti-vibration rubber device, for a structure that requires anti-vibration support, the anti-vibration rubber damps the vibration in the biaxial direction in a plane parallel to the support portion, and the support portion. There is a problem that the vibration in the axial direction perpendicular to the above cannot be damped.

An object of the present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a vibration-proof structure capable of reducing vibration in all directions, particularly in the front-back, left-right, and up-down three-axis plane directions.

The anti-vibration structure according to the present invention is supported by a support member via a first anti-vibration material and is attached to the support member in the vertical direction so as to be able to attenuate vibration in a plane in the front-rear and left-right directions. The first bracket is supported by the first bracket via a second anti-vibration material, and is arranged on the side of the first bracket so as to be able to attenuate vibration in a plane including the vertical direction. and second and a bracket, the weight thereof is attached to the first bracket, is characterized in that the second inertial sensor to the bracket is attached.

According to the present invention, a first bracket capable of attenuating vibration in at least one plane is supported by a second bracket capable of attenuating vibration in at least another plane orthogonal to the one plane, and the second bracket is supported. Equipment that requires anti-vibration measures is installed in the room. Therefore, the anti-vibration structure having the first bracket and the second bracket can reduce the vibration in all directions, particularly in the front-back, left-right, and up-down three-axis plane directions with respect to the equipment requiring the anti-vibration measures.

The left side view which shows the motorcycle to which one Embodiment of the anti-vibration structure which concerns on this invention is applied. The left side view which shows the body frame of the motorcycle of FIG. FIG. 2 is a perspective view showing the periphery of the ABS unit and the inertial sensor in FIG. 2 visually from diagonally forward and upward. The perspective view which visually shows the circumference of the upper holder piece of the ABS unit holder of FIG. 3 from the diagonally rear upper side. The perspective view which visually shows the circumference of one side of the lower holder of the ABS unit holder of FIG. 3 from diagonally front and upper side. FIG. 3 is a cross-sectional view taken along the line VI-VI of FIG. The perspective view which shows the ABS unit and the inertia sensor of FIG. VIII arrow view of FIG. 7. IX arrow view of FIG. 7. FIG. 9 is a cross-sectional view taken along the line XX of FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
FIG. 1 is a left side view showing a motorcycle to which one embodiment of the anti-vibration structure according to the present invention is applied. Further, FIG. 2 is a left side view showing a body frame and the like of the motorcycle of FIG. 1. In this embodiment, the front-rear, left-right, and up-down expressions are based on the driver when riding the motorcycle.

As shown in FIGS. 1 and 2, the motorcycle 10 has a body frame 11 and a head pipe 12 is provided in front of the body frame 11. The head pipe 12 is provided with a pair of left and right front suspensions 14 which have a built-in suspension mechanism (not shown) and rotatably support the front wheels 13, and a steering mechanism 16 composed of a handlebar 15 and the like. The front wheels 13 are steered to the left and right by the operation.

On the other hand, the vehicle body frame 11 is, for example, a twin tube type, and is a pair of left and right main frames 17 which are expanded in the vehicle width direction immediately after the head pipe 12 and then extend diagonally backward and downward in parallel with each other, and their mains. It is configured to have a pair of left and right center frames 18 connected to the rear end portion of the frame 17 and extending substantially in the vertical direction, and a seat rail 19 and a seat pillar 20 extending rearward from the rear portion of these center frames 18. ..

A fuel tank 21 is arranged above the main frame 17, and a rider seat 22 and a pillion seat 23 are sequentially arranged above the seat rail 19 and the seat pillar 20 behind the fuel tank 21. A pivot shaft 24 is erected at a substantially lower center of the center frame 18, and a swing arm 25 is pivotally supported on the pivot shaft 24 so as to swing in the vertical direction around the pivot shaft 24. The rear wheel 26 is rotatably supported by the rear end of the swing arm 25.

The engine 27 is suspended from the main frame 17 and the center frame 18 below the fuel tank 21 at the lower center in the vehicle front-rear direction between the front wheels 13 and the rear wheels 26. The driving force of the engine 27 is transmitted to the rear wheels 26 via a drive chain or the like (not shown).

For example, a throttle body (not shown), a fuel injector, an air cleaner, etc., which constitute an engine intake system, are sequentially connected to the rear portion of the cylinder head 28 constituting the engine 27. A mixture of fuel and air is supplied from the engine intake system to the combustion chamber (not shown) of the engine 27.

Further, an exhaust pipe and an exhaust muffler (both not shown) constituting the engine exhaust system are sequentially connected to the front portion of the cylinder head 28. The exhaust pipe extends downward from the front portion of the cylinder head 28 and then extends rearward, and an exhaust muffler is connected to the rear end thereof.

Further, in the motorcycle 10, the vehicle side is covered by the tank side cover 32, and the lower parts of the rider seat 22 and the pillion seat 23 are covered by the rear cover 33. The vehicle body covers such as the tank side cover 32 and the rear cover 33 protect the internal equipment of the vehicle and improve the appearance of the vehicle.

For example, as shown in FIGS. 1 to 3, the ABS (Antilock Brake System) unit 35 and the inertial sensor 36 are arranged between the pair of left and right seat rails 19 and the seat pillars 20, and between the pair of left and right rear covers 33, respectively. , These seat rails 19, seat pillars 20 and rear cover 33 are surrounded and protected. Here, the ABS unit 35 is a heavy object (for example, 1.5 kg weight) that is heavier than the inertial sensor 36. Further, the inertial sensor 36 is more sensitive to vibration than the ABS unit 35, and is a device that requires anti-vibration measures.

Therefore, the ABS unit 35 is attached to the seat rail 19 and the seat pillar 20 as the support members in a floating state so as to be movable in a substantially horizontal plane of the vehicle by using the ABS unit holder 37 as the first bracket. Further, as shown in FIG. 7, the inertial sensor 36 is attached to the ABS unit holder 37 in a floating state so as to be movable within a substantially vertical plane of the vehicle by using the sensor mounting plate 38 as the second bracket.

That is, the ABS unit holder 37 is formed in an L-shape in front view as shown in FIGS. 7 and 8. In the ABS unit holder 37, the upper holder piece 37A is bent at the upper part to be formed in the vehicle substantially horizontal plane, and the lower holder piece 37B is formed at the lower part extending in the vehicle horizontal plane. Fitting recesses 39 are formed at both ends of the upper holder piece 37A and at the lower holder piece 37B, respectively.

Further, as shown in FIGS. 3 to 5, an upper support bracket 41 as a support portion is fixed to, for example, the left seat rail 19 of the pair of left and right seat rails 19 by welding or the like. Further, a bridge tube 40 is bridged between the pair of left and right seat pillars 20, and a lower support bracket 42 as a support portion is fixed to the bridge tube 40 by welding or the like.

As shown in FIGS. 3, 7, and 8, the ABS unit 35 is fixedly attached to the ABS unit holder 37 by a fixing bolt 43. As shown in FIGS. 4 to 6, in the fitting recess 39 of the upper holder piece 37A and the lower holder piece 37B in the ABS unit holder 37, a substantially cylindrical ABS cushion rubber 44 as the first vibration isolator is provided. The outer circumference is fitted. A spacer 45 is inserted through the inner circumference of the ABS cushion rubber 44, and a tightening bolt 46 is inserted through a washer 47 and a spacer 45 and welded to and fixed to each of the upper support bracket 41 and the lower support bracket 42. It is screwed into the nut 48.

By screwing the tightening bolt 46 into the nut 48, the ABS unit holder 37 fixedly attached to the ABS unit 35 as shown in FIG. 3 is under the upper support bracket 41 and the bridge tube 40 of the seat rail 19. It is supported by the side support bracket 42 via the ABS cushion rubber 44, and is attached to the side support bracket 42 in a floating state so as to be movable at least in a substantially horizontal plane of the vehicle by the ABS cushion rubber 44. That is, the ABS unit holder 37 uses the ABS cushion rubber 44 to vibrate at least in the substantially horizontal plane of the vehicle, particularly the vibration in the X-axis direction (left-right direction) and the vibration in the Y-axis direction (front-rear direction) of FIGS. 3 and 7. Is configured to be dampenable.

On the other hand, as shown in FIGS. 7 to 9, the inertial sensor 36 is fixedly attached to the sensor mounting plate 38 by using fixing bolts 49. The sensor mounting plate 38 is formed with fitting holes 50 (FIG. 10) at two locations.

Further, as shown in FIGS. 8 and 10, the convex portion 51A of the convex plate 51 is fixed to, for example, the left side surface of the ABS unit holder 37 by welding or the like. Then, insertion holes 52 are formed at both ends of the convex plate 51 sandwiching the convex portion 51A, and a nut 53 is fixed to the back surface side of the convex plate 51 corresponding to the insertion hole 52 by welding or the like.

The outer circumference of the substantially cylindrical sensor cushion rubber 54 as the second vibration-proof material is fitted into the two fitting holes 50 of the sensor mounting plate 38. A spacer 55 is inserted into the inner circumference of the sensor cushion rubber 54, and a tightening bolt 56 is inserted into a washer 57, a spacer 55, and an insertion hole 52 of a convex plate 51, and is screwed into a nut 53.

When the tightening bolt 56 is screwed into the nut 53, the sensor mounting plate 38 fixedly attached to the inertial sensor 36 is attached to the convex plate 51 fixed to the ABS unit holder 37 via the sensor cushion rubber 54. The sensor cushion rubber 54 mounts the sensor in a floating state so that it can be moved at least within the vertical plane of the vehicle. That is, the sensor mounting plate 38 is vibrated at least in the substantially vertical plane of the vehicle by the sensor cushion rubber 54, particularly the vibration in the Y-axis direction (front-rear direction) and the Z-axis direction (vertical direction) in FIGS. 3 and 7. It is configured to be able to dampen vibrations.

As a result, as shown in FIGS. 7 and 8, the vibration-proof structure 60 of the inertial sensor 36 fixedly attached to the sensor mounting plate 38 is substantially a vehicle by the ABS cushion rubber 44 provided on the ABS unit holder 37. Damps vibrations in the horizontal plane, especially in the X-axis and Y-axis directions. Further, the vibration-proof structure 60 is configured to attenuate vibrations in the substantially vertical plane of the vehicle, particularly in the Y-axis direction and the Z-axis direction, by the sensor cushion rubber 54 provided on the sensor mounting plate 38.

Since it is configured as described above, according to the present embodiment, the following effects (1) to (6) are obtained.
(1) As shown in FIGS. 3, 7, and 8, the ABS unit holder 37 is provided with the ABS cushion rubber 44 so as to be able to attenuate at least vibrations in the vehicle's substantially horizontal plane, particularly in the X-axis direction and the Y-axis direction. Be done. Further, the sensor mounting plate 38 vibrates at least in the vehicle substantially vertical plane orthogonal to the vehicle substantially horizontal plane, particularly in the Y-axis direction and the Z-axis direction, by the sensor cushion rubber 54 via the convex plate 51 on the ABS unit holder 37. Is provided so that it can be attenuated. Then, the inertial sensor 36 is fixedly attached to the sensor attachment plate 38.

Therefore, the vibration-proof structure 60 of the inertial sensor 36 having the ABS unit holder 37, the sensor mounting plate 38, the ABS cushion rubber 44, and the sensor cushion rubber 54 is particularly in the left-right direction with respect to the inertial sensor 36 ( Vibration in three axial directions (X-axis direction), front-rear direction (Y-axis direction), and vertical direction (z-axis direction) can be reduced. Moreover, since the ABS unit 35 fixedly attached to the ABS unit holder 37 is a heavy object, the above-mentioned vibration in the three axial directions can be further reduced.

(2) As shown in FIGS. 3 and 7, the first bracket constituting the vibration-proof structure 60 of the inertial sensor 36 is supported on the seat rail 19 and the seat pillar 20 side via the ABS cushion rubber 44. An ABS unit holder 37 for fixing and attaching the ABS unit 35 is used. Therefore, since it is not necessary to separately use the dedicated first bracket, the number of parts can be reduced, and the production man-hours and production cost can be reduced. Further, since the ABS unit 35 is a heavy object, the vibration of the inertial sensor 36 can be reduced by the weight of the ABS unit 35 as described above.

(3) As shown in FIGS. 7 and 8, the sensor mounting plate 38 to which the inertial sensor 36 is fixedly mounted has the sensor cushion rubber 54 attached to the convex plate 51 fixed to the ABS unit holder 37 at two locations. It is supported through. When the sensor mounting plate 38 is supported by the convex plate 51 via the cushion rubber 54 for the sensor at one place or three or more places, the damping of vibration by the cushion rubber 54 for the sensor becomes insufficient. Therefore, since the sensor mounting plate 38 is supported by the convex plate 51 at two points via the cushion rubber 54 for the sensor, the vibration damping effect can be sufficiently exerted, and the inertial sensor 36 mounted on the sensor mounting plate 38 can be sufficiently exhibited. Vibration can be suitably reduced.

(4) As shown in FIGS. 2 and 3, the ABS unit 35 and the inertial sensor 36 are arranged between the pair of left and right seat rails 19 and between the pair of left and right seat pillars 20, and the seat rails 19 and the seat pillars 20 are used. Since it is surrounded, it is possible to prevent an impact load from directly acting on the ABS unit 35 and the inertial sensor 36 even when the vehicle falls, for example.

(5) As shown in FIG. 1, the ABS unit 35 and the inertial sensor 36 are arranged between a pair of left and right rear covers 33 and surrounded by these rear covers 33. Therefore, the ABS unit 35 and the inertial sensor 36 can be prevented from being covered with water or earth and sand that cause a failure by the rear cover 33, and further, mischief and theft from the outside can be prevented.

(6) As shown in FIGS. 1 and 8, the sensor mounting plate 38 to which the inertial sensor 36 is fixedly attached is on the side (for example, the left side) of the ABS unit holder 37 to which the ABS unit 35 is fixedly attached. Have been placed. Therefore, no space is required below the ABS unit holder 37, so that the ABS unit holder 37 and the ABS unit 35 can be arranged at a low position. Therefore, the ABS unit 35, which is a heavy object, can lower the center of gravity of the vehicle, and the piping can be arranged above the ABS unit 35, so that the degree of freedom of layout in the front-rear and vertical directions of the ABS unit 35 can be improved. Can be done. Moreover, even in the inertial sensor 36 arranged below the rider seat 22, the degree of freedom of arrangement is higher in the left-right direction than in the up-down direction of the ABS unit 35.

Although the embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. This embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention, and the replacements and changes thereof can be made. , It is included in the scope and gist of the invention, and is also included in the scope of the invention described in the claims and the equivalent scope thereof.

For example, the ABS unit holder 37 to which the ABS unit 35 is fixedly attached is configured to be capable of dampening vibrations in the vehicle's approximately vertical plane, particularly vibrations in the Y-axis direction and the Z-axis direction in the vehicle's approximately vertical plane, and is an inertial sensor. The sensor mounting plate 38 to which the 36 is fixedly mounted may be configured to be capable of dampening vibrations in the vehicle's substantially horizontal plane, particularly in the X-axis direction and the Y-axis direction.

Further, in the present embodiment, the first bracket has been described in the case of the ABS unit holder 37 to which the ABS unit 35 is attached, but it may be a bracket for attaching a heavy battery or the like.

Further, the first bracket does not attach other parts (for example, ABS unit 35, battery, etc.) other than the inertia sensor 36, and is used together with the sensor mounting plate 38, which is the second bracket, exclusively for reducing the vibration of the inertia sensor 36. Bracket may be used.

11 ... Body frame, 19 ... Seat rail, 20 ... Seat pillar, 33 ... Rear cover, 35 ... ABS unit, 36 ... Inertia sensor (equipment that requires anti-vibration measures), 37 ... ABS unit holder (first bracket), 38 ... Sensor mounting plate (second bracket), 41 ... Upper support bracket (support part), 42 ... Lower support bracket (support part), 44 ... ABS cushion rubber (first anti-vibration material), 54 ... Sensor cushion Rubber (second anti-vibration material), 60 ... Anti-vibration structure.

Claims (4)

A first bracket that is supported by the support member via a first vibration-proof material and is attached to the support member in the vertical direction so as to be able to dampen vibrations in a plane in the front-rear and left-right directions.
The first bracket is supported by a second anti-vibration material and has a second bracket arranged on the side of the first bracket so as to be able to attenuate vibration in a plane including the vertical direction. death,
Vibration damping, characterized in that said heavy amount thereof to the first bracket is attached, it is an inertial sensor attached to the second bracket. The second bracket is characterized in that it is configured to be fixed in either the front-rear direction or the left-right direction with respect to the first bracket so as to be able to attenuate vibration in a plane including a vertical direction. The anti-vibration structure according to 1. The anti-vibration structure according to claim 1 or 2 , wherein the first bracket is an ABS unit holder for attaching the ABS unit as a heavy object. The anti-vibration structure according to any one of claims 1 to 3 , wherein the first bracket is supported by a support portion provided on a vehicle body frame as a support member in a motorcycle.

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