JP2009161013A - Motorcycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a motorcycle capable of disposing grab bars enhanced in supporting strength at high positions. <P>SOLUTION: The motorcycle has a pair of left and right grab bars 40, 40 and seat rails 24, 24 supporting the pair of left and right grab bars 40, 40. The seat rails 24, 24 are provided with: plate-like rear brackets 31, 31 arranged in opposition to each other in a vehicle width direction, fixed to the seat rails 24, 24 by welding, and extending upward from the seat rails 24, 24; and a support bar 32 laid across the brackets 31, 31 and supporting the grab bars 40, 40. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a motorcycle including a grab bar for a passenger sitting behind a driver to grip.

2. Description of the Related Art Conventionally, there is a motorcycle in which a grab bar for gripping a passenger sitting behind a driver is provided on a side or rear of a seat. In the motorcycle disclosed in Patent Document 1, grab bars are provided on both the left and right sides of the seat, and the left and right grab bars are respectively attached to the left and right seat rails that support the seat.
JP-A-5-286469

  However, the motorcycle disclosed in the above document has the following problems.

  Depending on the passenger's usage, a large load may be applied only to one of the left and right grab bars. However, in the motorcycle of the above document, the left and right grab bars are attached to the left and right seat rails, respectively, and all loads applied to one grab bar are applied to the seat rail to which the one grab bar is attached. Therefore, it is necessary to increase the strength of the seat rail to be able to withstand it.

  Further, in the motorcycle described in the above document, a grab bar is located on the side of the seat rail. Therefore, depending on the height of the seat with respect to the seat rail, the position of the grab bar is low, so that it is difficult for the passenger to grip the grab bar.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a motorcycle capable of increasing the support strength of the grab bar and providing the grab bar at a high position.

  In order to solve the above-described problems, a motorcycle according to the present invention includes a pair of left and right grab bars that are gripped by a passenger and a vehicle body frame that supports the pair of left and right grab bars. The vehicle body frame extends in the front-rear direction of the vehicle body below the seat, and is disposed so as to face the pair of left and right seat rails that support the seat in the vehicle width direction, and is welded to the pair of left and right seat rails. A pair of plate brackets that are fixed and extend upward from the pair of left and right seat rails, and a support bar that spans the pair of plate brackets and supports the pair of left and right grab bars.

  According to the present invention, since the load applied to one grab bar is applied to both seat rails, it is possible to suppress the necessity for processing to increase the strength of the seat rails. Moreover, since the plate-shaped bracket extends upward, the position of the grab bar can be increased. Furthermore, since the pair of plate-like brackets are arranged so as to face each other and they are fixed to the seat rail by welding, the support strength of the grab bar can be increased.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a motorcycle 1 as an example of an embodiment of the present invention, and FIG. 2 is a plan view of the motorcycle 1. As shown in FIG. 1 or 2, the motorcycle 1 includes an engine 2, a front wheel 3, a rear wheel 4, a body frame 20, a seat 14, and a pair of left and right grab bars 40 and 40. . The body frame 20 includes a head pipe 21, a main tube 22, a down tube 23, a pair of left and right seat rails 24, 24, a vertical pipe 25, and a stay 26.

  The head pipe 21 is provided at the front end of the vehicle body frame 20 and supports a steering shaft (not shown) arranged inside the head pipe 21. The upper end and the lower end of the steering shaft are fixed to two brackets 6 and 6 arranged vertically. The front wheel 3 is supported by the lower end portion of the front fork 7. The upper part of the front fork 7 is held by brackets 6 and 6. A handle 8 is attached to the upper bracket 6. The handle 8 rotates left and right together with the front fork 7 and the front wheel 3 around the steering shaft.

  The front end of the down tube 23 and the front end of the main tube 22 are connected to the head pipe 21. The down tube 23 extends obliquely downward in front of the engine 2. The engine 2 is supported by a bracket 23 a provided at the lower end of the down tube 23. The main tube 22 extends rearward from the head pipe 21 and suspends the engine 2 positioned below the main tube 22.

  A pair of left and right seat rails 24, 24 are connected to the rear end of the main tube 22. The seat rails 24, 24 are arranged below the seat 14 so as to extend in the front-rear direction of the vehicle body, and support the seat 14.

  The seat 14 is a so-called double seat, and includes a front seat 14a on which a driver who operates the handle 8 and the like sits, and a rear seat 14b for a passenger sitting behind the driver, which are connected in the front-rear direction. Yes. On the left and right sides of the rear seat 14b, grab bars 40, 40 for the passenger to hold are arranged. The grab bars 40 will be described later.

  A vertical pipe 25 is connected to the rear end of the main tube 22. The vertical pipe 25 extends downward on the rear side of the engine 2. The front end of the stay 26 is connected to the middle of the vertical pipe 25. The stay 26 extends obliquely upward from its front end, and its rear end is connected to the seat rail 24. Side covers 12 and 12 are disposed on the sides of the rear portions of the seat rails 24 and 24 to cover them from the sides (see FIG. 2). A tail cover 13 is disposed behind the seat rails 24, 24 to cover them from the rear.

  A rear wheel 4 is disposed below the seat 14. The rear wheel 4 is supported by the rear end of the rear arm 9 extending in the front-rear direction. The vertical pipe 25 supports the pivot shaft 11, and the front end of the rear arm 9 is attached to the pivot shaft 11. The driving force output from the engine 2 is transmitted to the rear wheel 4 via a chain or a belt (not shown).

  A rear fender 15 is disposed above the rear wheel 4 and below the seat 14. Further, a lighting device such as a direction indicator 16 and a tail lamp 17 is provided above the rear wheel 4. These are attached to the rear fender 15.

  The grab bars 40 and 40 and the structure that supports the grab bars 40 and 40 will be described in detail. 3 is a perspective view of the rear part of the seat rails 24, 24, and FIG. 4 is a perspective view of the grab bars 40, 40 fixed to the seat rails 24, 24. As shown in FIG. FIG. 5 is a view of the seat rails 24 and 24 and the grab bars 40 and 40 from the rear. FIG. 6 is a side view of a portion where the grab bar 40 is provided in the motorcycle 1, and FIG. 7 is a plan view of the portion.

  As shown in FIG. 3 or 4, the vehicle body frame 20 includes a pair of left and right plate-like rear brackets 31, 31 and rear brackets 31, 31 in addition to seat rails 24, 24 that extend obliquely rearward. And a support bar 32 that supports the grab bars 40 and 40.

  The rear brackets 31 are arranged so as to face each other in the vehicle width direction (the direction indicated by W in FIGS. 3 and 7). The rear bracket 31 is fixed to the seat rail 24 by welding and extends upward from the seat rail 24. Specifically, a plurality (here, two) of plate-like welded portions 31 a and 31 a are provided at the base of the rear bracket 31. The two welded portions 31 a and 31 a are provided so as to be lined up and down at intervals, and each extend along the seat rail 24. The outer peripheral edges of the welded portions 31a and 31a are fixed to the rear end 24a of the seat rail 24 by welding. The rear bracket 31 extends obliquely upward from the welds 31a and 31a.

  The welded portions 31a and 31a are fixed to the outer peripheral surface of the tubular seat rail 24 on the center side in the vehicle width direction. That is, the brackets 31 and 31 are disposed inside the rear ends 24 a and 24 a of the seat rails 24 and 24 (center side in the vehicle width direction), and the bracket 31 is fixed to an inner portion of the outer peripheral surface of the seat rail 24. Has been.

  The bracket 31 has a rear plate part 31b at the rear part. The rear side plate portion 31 b extends obliquely upward and holds the support bar 32. The welded portions 31a and 31 are connected to the rear plate portion 31b.

  The support bar 32 is tubular and has a circular cross section. The support bar 32 is fixed to the rear brackets 31 and 31. Specifically, a circular hole is formed in the rear side plate portion 31b of the rear bracket 31, and the end portion of the support bar 32 is inserted into the hole. And the outer peripheral surface of the support bar 32 is being fixed to the edge of the hole formed in the back side board part 31b by welding. As described above, the rear bracket 31 extends obliquely upward from the rear end 24a of the seat rail 24, and the position of the support bar 32 is higher than the position of the rear end 24a of the seat rail 24 (see FIG. 6). .

  Further, the support bar 32 supports a lighting device (here, the direction indicator 16 and the tail lamp 17) disposed at the rear of the vehicle body. Specifically, as shown in FIG. 5, lower brackets 39, 39 are provided below the support bar 32. The lower bracket 39 is fixed to the outer peripheral surface of the support bar 32 by welding. A rear fender 15 to which the direction indicator 16 and the tail lamp 17 are attached is disposed below the support bar 32. The rear fender 15 has a mounting plate portion 15a extending upward at an upper portion thereof. The mounting plate portion 15 b is fixed to the lower brackets 39 and 39 by two bolts 18 and 18. Accordingly, the support bar 32 supports the direction indicator 16 and the tail lamp 17 via the lower brackets 39 and 39 and the rear fender 15. A number plate 19 is also attached to the rear fender 15.

  As shown in FIG. 3, on the upper side of the support bar 32, a mounting base 33 fixed to the outer peripheral surface of the support bar 32 by welding is provided. The mounting base 33 has an upper surface 33a extending in the vehicle width direction, and mounting holes 33b and 33b for fixing the grab bars 40 and 40 are formed on the upper surface 33a (see FIG. 4). A hole 33c that is long in the lateral direction is formed in the center of the upper surface 33a.

  As shown in FIG. 4, the grab bars 40 and 40 are tubular, and extend from the rear position of the seat 14 toward the front side of the rear seat 14 b (see FIG. 7).

  The grab bar 40 has a rear supported part 40a supported by the support bar 32 at the rear part thereof. The rear supported portion 40 a extends in the vehicle width direction and is provided in parallel to the support bar 32. A plate-like connecting plate 41 is disposed in front of the rear supported portions 40a, 40a of the left and right grab bars 40, 40. The rear supported portions 40a and 40a are fixed to the rear edge 41a of the connecting plate 41 by welding, whereby the two rear supported portions 40a and 40a are connected by the connecting plate 41. . The connecting plate 41 is fixed to mounting holes 33 b and 33 b formed in the mounting base 33 by bolts 42 and 42.

  The grab bar 40 has an inclined portion 40b extending from the rear supported portion 40a and a bent portion 40c extending from the inclined portion 40b at the rear portion thereof. The grab bar 40 extends laterally at the inclined portion 40b and is inclined upward. The grab bar 40 is bent forward at the bent portion 40c.

  The grab bar 40 has a grip portion 40d that extends forward from the bent portion 40c and is gripped by the passenger, and an inclined portion 40e that extends from the grip portion 40d. Further, the grab bar 40 has a front supported portion 40f supported by the seat rail 24 at the front end thereof.

  The grip 40d extends forward on the side of the rear seat 14b (see FIGS. 6 and 7). The inclined portion 40e extends forward from the grip portion 40d and is inclined downward.

  The front supported portion 40f extends forward from the inclined portion 40e and is positioned on the side of the seat rail 24. A plate-like bracket 43 fixed to the outer peripheral surface of the front supported portion 40f by welding is provided on the center side (the seat rail 24 side) in the vehicle width direction of the front supported portion 40f. As shown in FIG. 3, in the seat rail 24, a front bracket 34 fixed to the outer peripheral surface of the seat rail 24 by welding is provided at a position ahead of the position where the rear bracket 31 is provided. The front bracket 34 has a side surface portion 34a extending along the seat rail 24 (see FIG. 3), and a mounting hole 34b for inserting a bolt 44 is formed in the side surface portion 34a. And as shown in FIG. 4, the bracket 43 provided in the grab bar 40 is being fixed to the side part 34a with the volt | bolt 44. As shown in FIG.

  As shown in FIG. 6 or FIG. 7, a portion of the vehicle body frame 20 that supports the grab bar 40 is covered with the side cover 12 or the tail cover 13 so as not to be exposed to the outside.

  That is, the back support portions 40 a and 40 a, the connecting plate 41, the mounting base 33, the support bar 32, and the rear bracket 31 of the grab bars 40 and 40 are covered from the rear by the tail cover 13. Specifically, as shown in FIG. 6, the tail cover 13 has an upper plate portion 13a located behind the seat 14 and a lower plate portion 13b extending obliquely downward from the edge of the rear end of the upper plate portion 13a. is doing. Between the upper plate portion 13a and the lower plate portion 13b, rear supported portions 40a and 40a, a connecting plate 41, a mounting base 33, a support bar 32, and a rear bracket 31 are arranged. Further, the rear supported portions 40a, 40a, the connecting plate 41, the mounting base 33, the support bar 32, and the rear bracket 31 are located inside the pair of left and right side covers 12, 12 (center side in the vehicle width direction), Covered from the side by the covers 12, 12.

  In addition, as shown in FIG. 4, the cover bracket 45 fixed to the outer peripheral surface of the said back supported part 40a, 40a is provided above the back supported part 40a, 40a. The upper plate portion 13 a of the tail cover 13 is fixed to the cover bracket 45. The upper plate portion 13a is formed with an opening for inserting the grab bars 40, 40 inside the tail cover 13 (between the upper plate portion 13a and the lower plate portion 13b). A cap 49 for covering the opening is fitted to the inclined portion 40b of the grab bar 40 (see FIG. 6 or FIG. 7).

  As shown in FIG. 6, the front supported portion 40 f of the grab bar 40, the bracket 43, and the front bracket 34 fixed to the seat rail 24 are covered from the side by the side cover 12. That is, the side cover 12 is curved so that the central portion in the vertical direction extends sideways, and a space is provided on the inner side. The front supported portion 40f, the bracket 43, and the front bracket 34 are disposed inside the side cover 12. An opening for inserting the grab bar 40 into the inside of the side cover 12 is formed on the upper surface 12a of the side cover 12 (see FIG. 7). A cap 48 for covering the edge of the opening is fitted to the grip portion 40 d of the grab bar 40.

  In the motorcycle 1 described above, the body frame 20 includes a pair of left and right seat rails 24, 24, a pair of plate brackets 31, 31, and a support bar 32. The brackets 31, 31 are arranged so as to face each other in the vehicle width direction, are fixed to the pair of left and right seat rails 24, 24 by welding, and extend upward from the pair of left and right seat rails 24, 24, The support bar 32 spans between the pair of brackets 31 and 31 and supports the pair of left and right grab bars 40 and 40.

  According to the motorcycle 1, since the load applied to one grab bar 40 is applied to both seat rails 24, 24, the seats are more seated than when the grab bars 40, 40 are attached to the left and right seat rails 24, 24, respectively. The necessity of processing or the like for increasing the strength of the rails 24 and 24 can be suppressed. Moreover, since the brackets 31 and 31 extend upward, the positions of the grab bars 40 and 40 can be increased. Furthermore, since the pair of brackets 31 and 31 are disposed so as to face each other and are fixed to the seat rails 24 and 24 by welding, the support strength of the grab bars 40 and 40 can be increased.

  Further, in the motorcycle 1, the pair of brackets 31, 31 are fixed to the outer peripheral surfaces of the pair of left and right seat rails 24, 24 on the center side in the vehicle width direction. Thereby, the length of the support bar 32 spanned over the brackets 31 and 31 can be suppressed, and the support strength of the grab bars 40 and 40 can be further increased.

  In the motorcycle 1, the support bar 32 is tubular. Thereby, the strength of the support bar 32 can be increased.

  Further, in the motorcycle 1, the brackets 31, 31 have a plurality of welded portions 31a that are fixed to the outer peripheral surfaces of the seat rails 24, 24 by welding, respectively. Thereby, the bracket 31 can be fixed to the seat rail 24 more reliably.

  In the motorcycle 1, the pair of left and right grab bars 40, 40 are provided with a connection plate 41 that connects the pair of left and right grab bars 40, 40 to each other and is attached to the support bar 32. Thereby, since the grab bars 40 and 40 can be handled integrally with the mounting work of the grab bars 40 and 40, the mounting work can be simplified.

  In the motorcycle 1, the pair of left and right grab bars 40, 40 extend in the front-rear direction and have front supported portions 40f, 40f supported by the seat rails 24, 24 at their front portions. Thereby, the support strength of the grab bar 40 can be further increased.

  In the motorcycle 1, the pair of left and right grab bars 40, 40 have rear supported portions 40 a, 40 a that are supported by the support bars 32, respectively. The rear supported portions 40a and 40a and the support bar 32 are covered by the covering tail cover 13. Thereby, the appearance of the vehicle body can be improved.

  Further, in the motorcycle 1, the support bar 32 supports the pair of left and right grab bars 40, 40, and also supports the direction indicators 16, 16 and the tail lamp 17 provided at the rear of the vehicle body. As a result, the number of parts for supporting the direction indicators 16 and 16 and the tail lamp 17 can be reduced.

  The present invention is not limited to the motorcycle 1 described above, and various modifications can be made. For example, in the above description, the grab bars 40 and 40 are fixed to the support bar 32 via the connecting plate 41 and the mounting base 33. However, the grab bars 40, 40 may be directly fixed to the support bar 32.

  In the above description, the support bar 32 is tubular. However, the support bar 32 may be rod-shaped. In this case, the support bar 32 and the rear brackets 31, 31 may be integrally formed.

1 is a side view of a motorcycle according to an embodiment of the present invention. Fig. 2 is a plan view of the motorcycle. It is a perspective view of the rear part of a body frame. It is a perspective view of the grab bar fixed to the seat rail. It is a figure which faces a seat rail and a grab bar from back. FIG. 3 is a side view of a portion where a grab bar is provided in the motorcycle. Fig. 3 is a plan view of a portion where a grab bar is provided in the motorcycle.

Explanation of symbols

  1 Motorcycle, 2 Engine, 3 Front Wheel, 4 Rear Wheel, 6 Bracket, 7 Front Fork, 8 Handle, 9 Rear Arm, 11 Pivot Shaft, 12 Side Cover, 13 Tail Cover, 14 Seat, 15 Rear Fender, 16 Direction Indicator ( (Lighting device), 17 tail lamp (lighting device), 20 body frame, 24 seat rail, 31 bracket, 32 support bar, 33 mounting base, 34 front bracket, 39 lower bracket, 40 grab bar, 40a rear supported part, 40f front Supported part, 41 connecting plate (connecting part), 43 bracket, 45 cover bracket, 48, 49 cap.

Claims (8)

A motorcycle comprising a pair of left and right grab bars held by a passenger and a body frame that supports the pair of left and right grab bars,
The body frame is
A pair of left and right seat rails extending in the front-rear direction of the vehicle body below the seat and supporting the seat,
A pair of plate-like brackets arranged so as to face in the vehicle width direction and fixed to the pair of left and right seat rails by welding, and extending upward from the pair of left and right seat rails,
And a support bar that spans between the pair of plate brackets and supports the pair of left and right grab bars,
Motorcycle characterized by that. The motorcycle according to claim 1,
The pair of plate-like brackets are respectively fixed to outer peripheral surfaces on the center side in the vehicle width direction of the pair of left and right seat rails.
Motorcycle characterized by that. The motorcycle according to claim 1,
The support bar is tubular;
Motorcycle characterized by that. The motorcycle according to claim 1,
Each of the plate-like brackets has a plurality of welds that are fixed to the outer peripheral surface of the seat rail by welding,
Motorcycle characterized by that. The motorcycle according to claim 1,
The pair of left and right grab bars are connected to the pair of left and right grab bars, and provided with a connecting portion attached to the support bar.
Motorcycle characterized by that. The motorcycle according to claim 1,
Each of the pair of left and right grab bars extends in the front-rear direction, and has a supported portion supported by the seat rail at the front thereof.
Motorcycle characterized by that. The motorcycle according to claim 1,
The pair of left and right grab bars each have a supported portion supported by the support bar,
A cover for covering the supported portion and the support bar;
Motorcycle characterized by that. The motorcycle according to claim 1,
The support bar supports the pair of left and right grab bars and supports a lighting device provided at the rear of the vehicle body.
Motorcycle characterized by that.

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