JP3036097U - Mounting structure for battery box of motorcycle - Google Patents

Abstract

(57) Abstract: A mounting structure for a battery box of a motorcycle, which effectively utilizes a flange of a fuel tank as a holding member for the battery box. SOLUTION: In a motorcycle in which a fuel tank is arranged between left and right frames below a seat, a flange is provided outside each opening of an upper case and a lower case, and the flanges of the upper case and the lower case are joined together. And a bottom holding member for holding the bottom of the battery box for accommodating the battery via a flange on the front side of the fuel tank, and a hook for fixing the upper end of the battery box to the front side of the fuel tank. The elastic band having a hooking metal fitting at both ends is hooked between the hook provided on the front side surface of the battery box and the hook provided on the front side surface of the fuel tank to fasten the band. And an upper holding member.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a battery box mounting structure for a motorcycle, and more particularly to a battery box mounting structure using a flange of a fuel tank as a holding member for the battery box.

[0002]

[Prior art]

 Conventionally, in motorcycles in which a fuel tank is arranged between the left and right frames below the seat, in order to hold the battery box that stores the battery in the space on the front side of the fuel tank, the left and right frames are provided with holding members such as brackets and stays. Was attached by welding, and the battery box was held and fixed between the left and right frames via this holding member.

[0003]

[Problems to be solved by the device]

 However, since the battery box accommodating the battery is relatively heavy, it is necessary to form the holding members such as brackets and stays with rigid members, which increases the number of parts and the weight of the brackets. The processing man-hours for welding the holding members such as stays have been increased.

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and an object thereof is to provide a mounting structure for a battery box of a motorcycle capable of reducing the number of parts, the weight of parts, and the number of processing steps. And

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a motorcycle in which a fuel tank is arranged between the left and right frames below the seat, and a flange is provided outside each opening of the upper case and the lower case, The fuel tank is formed by joining the flanges of the lower case together to form an integral container, the bottom holding member that holds the bottom of the battery box that houses the battery via the flange on the front side of the fuel tank, and the top of the battery box. In addition to abutting against the lower surface of the hook fixed to the front side of the fuel tank, elastic bands with hooks at both ends were provided on the hook on the front side of the battery box and the front side of the fuel tank. A battery box mounting structure for a motorcycle, comprising: an upper holding member that is hooked between the hook and the band to fix the band. To provide.

In such a configuration, since the battery box accommodating the battery is held through the flange of the fuel tank, there is no need for a special mounting bracket, a holding member such as a stay, or the like, and the number of parts is increased. In addition, the weight of the parts is reduced and the man-hours required for welding the holding members such as brackets and stays are not required. Also, by reducing the number of parts such as brackets, stays, and other holding members, it is possible to increase the space for arranging other parts, which in particular can contribute to increasing the capacity of the fuel tank.

[0007]

[Embodiment of the invention]

 In a preferred embodiment, the bottom holding member is held on the flange by inserting a protrusion formed on the bottom of the battery box into a grommet hole attached to the flange of the fuel tank. . In such a configuration, the battery box is held on the flange by inserting the protrusion formed on the bottom into the hole of the grommet mounted on the flange of the fuel tank, and therefore the battery box itself has this configuration. The anti-vibration function of F is obtained, and the anti-vibration function is further enhanced by the action of the elastic band that holds the upper end of the battery box.

[0008]

【Example】

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a motorcycle to which a battery box mounting structure according to the present invention is applied. The body frame of the motorcycle 1 includes a head pipe 3 that penetrates the steering shaft 2, a down tube (main pipe) 4 that fixes the head pipe 3, an engine 5 and a main stand 7 that are fixed to the down tube 4. Bracket frames 6 and 8 for supporting the seat, a seat hinge pipe 11 for rotatably supporting the seat 10, a bracket frame (upper gusset) 9 for supporting the seat, and a pair of left and right upper rear parts for supporting a fuel tank (not shown) and the like. It comprises a pipe frame 12, a pair of left and right rear lower pipe frames 13 for connecting the bracket frame (lower gusset) 8 and the rear upper pipe frame 12, and the like.

An angle-shaped vertical pipe 72 is welded and fixed to the rear end portion of the down tube 4 (approximately the center of the vehicle body). The upper gusset (bracket frame) 9 and the lower gusset (bracket frame) 8 are welded and fixed to the vertical pipe 72. A cushion 71 is mounted between the vertical pipe 72 and a bracket 74 fixed to the rear arm 22. Further, a foot rest 73 for a tandem rider is attached to the rear lower pipe frame 13.

The rear end portions 12a of the left and right rear upper pipe frames 12 are bent upward, and the rear bracket 50 is fixed between these left and right rear end portions 12a. A grab bar 41 for a tandem rider is attached to the rear bracket 50. 43 is a tail lamp. The seat 10 is rotatably attached around a shaft 11a at the upper end of a seat hinge pipe 11 welded and fixed to the upper surface of the upper gusset 9. The lower left and right sides of the seat 10 are covered with a rear side cover 70. On the left side of the upper pipe frame 12 on the left side of the vehicle body, a handle portion 12b for lifting the vehicle body is formed.

The vehicle body frame is made of a metal material such as steel or aluminum and is entirely covered with a vehicle body cover 14 made of synthetic resin that can be divided into a plurality of parts in the front, rear, left and right directions. The upper and lower ends of the steering shaft 2 are fixed to the handle crown 15. The handle 16 is connected to the front fork pipe 17 via the handle crown 15. The front fork pipe 17 supports the front wheel 18 from both the left and right sides, so that the direction of the front wheel 18 is changed in conjunction with the operation of the handle 16. The front of the handle 16 is covered with a cowling 19, and a headlight 20 is attached to the cowling 19. Below the rear lower pipe frame 13 of the vehicle body frame, a rear arm 22 that pivots up and down around a pivot shaft 75 provided in the lower gusset 8 and supports the rear wheel 21 at the rear end is connected. The rear wheel 21 is connected to the engine 5 via a chain (not shown) and is rotationally driven. The chain is covered with a chain cover 23.

An upper portion of the front wheel 18 is covered with a synthetic resin front fender 24 mounted inside the left and right front fork pipes 17, and an upper portion of the rear wheel 21 is covered with a synthetic resin rear fender 25. . The engine 5 is laterally covered by an under cowl portion 27 which is integral with the front side cover 26 of the synthetic resin body cover 14. A rear side cover 70 made of synthetic resin is also attached to the rear side of the front side cover 26 made of synthetic resin.

FIG. 2 is a side view schematically showing a rear portion of a vehicle including a battery box mounting structure according to the present invention. Below the seat 10 of the motorcycle, a pair of left and right rear upper pipe frames 12 that are vehicle body frames that support the seat 10, the fuel tank 40, and the like are provided. The rear fender 25 is mounted between the left and right pipe frames 12. An extension portion 44 is integrally formed at a substantially central portion of the rear fender 25 so as to extend outward and cover a lower surface of a handle portion (a portion on which a hand is raised when lifting the vehicle body) 12b of the pipe frame 12. In this vehicle, the extending portion 44 integrally formed and the handle portion 12b of the pipe frame 12 constitute a standing handle. Further, on the rear side of the seat 10, a handle seat (grab bar) 41 that can be gripped by a rear passenger (tandem rider) is provided, and a tail lamp 43 is mounted between the handle seat 41 and the rear fender 25. The upper side of the tail lamp 43 is covered with a tail cowl 42 that connects the left and right rear side covers 70.

The fuel tank 40 and the like supported by the left and right pipe frames 12 have the entire upper surface covered with the sheet 10, and the entire both side surfaces covered with the left and right rear side covers 70 of the vehicle body cover 14. The rear fender 25 between the left and right pipe frames 12 is also covered by the rear side cover 70 of the seat 10 and the vehicle body cover 14 except for the rear end portion thereof.

The fuel tank 40 is composed of an upper case 401 and a lower case 402. As will be described later, the flanges 40 a on the mating surfaces of both cases are attached to brackets (not shown) provided on the left and right pipe frames 12 by bolts 403. Fixed. The bottom surface of the fuel tank between the left and right pipe frames is curved in the shape of the rear fender 25 in the front-rear direction of the vehicle body as illustrated.

FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 2, showing a schematic cross section of the rear part of the vehicle including the battery box mounting structure according to the present invention. The left and right upper pipe frames 12 that support the fuel tank 40 and the like are covered on their outer sides by a rear side cover 70 that forms a part of the vehicle body cover together with the fuel tank 40 and the like. As described above, the rear center of the rear fender 25 of this embodiment extends outward and covers the lower surface of the handle portion of the pipe frame 12 so as to be smoothly connected to the lower edge of the rear side cover 70. The extension 44 is integrally formed. This will be described in more detail. The extension portion 44 is composed of a hand-holding concave portion 44a continuous with the tire house portion 25a of the rear fender 25 and a handle covering portion 44b for covering the lower surface of the handle portion of the upper pipe frame 12.

The extension portion 44 of the rear fender 25 that constitutes a standing handle is provided on the left side of the vehicle, and the handle cover portion 44b is formed in a substantially box shape that is opened upward, and the inside thereof. It is reinforced by one longitudinal rib 45a provided in the traveling direction and two lateral ribs 45b provided in the vehicle width direction. The handle covering portion 44b contacts the upper pipe frame 12 via the vertical rib 45a and the horizontal rib 45b. Further, the hand-holding recess 44a is recessed in a substantially box shape opened downward.

The fuel tank 40 provided on the rear fender 25 is composed of an upper case 401 and a lower case 402. Each case has an opening and is provided with flanges 40la and 402a on the outer side of each opening. The flanges of the upper case 40l and the lower case 402 are seam welded to each other to form the fixed flange 40a, thereby forming an integrated container. I am configuring. The fuel tank 40 is formed such that its dimension in the vehicle width direction is wider than the dimension between the left and right pipe frames 12. Regarding the vehicle width direction, the bottom surface of the lower case 402 of the fuel tank 40 has a curved surface shape corresponding to the rear fender 25 between the left and right pipe frames 12 as in the vehicle front-rear direction shown in FIG. It has a curved surface shape corresponding to the house portion 25a.

The side surface shape of the bottom surface central portion 402a (FIG. 3) of the lower case 402 along the tire house portion 25a is shown by a chain line and a dotted line in FIGS. 2 and 5, respectively. Further, FIG. 5 shows a side surface shape of the downward projecting portion 402b which is the main volume of the fuel storage portion of the lower case 402 on both sides of the tire house portion 25a.

On the bottom surface of the lower case 402 of the fuel tank 40 on both outsides of the left and right pipe frames 12, one left and right downward bulging portion 400a continuous in the front-rear direction is formed (hatched portion in FIG. 5). reference). By providing the bulging portion 400a, the tank capacity can be increased, the rigidity of the tank can be increased, and vibration and soundproofing effects can be enhanced. As shown in FIG. 6, the shape of the bulging portion 400a on the bottom surface of the fuel tank 40 is formed so as to be wider toward the front. This is to avoid space interference with the pipe frame 12 and to increase the capacity as much as possible along the outer shape of the tank and further improve the rigidity of the bulging portion 400a. As shown in FIG. 6, the mounting of the fuel tank frame uses the flange portion extending in the front-rear direction of the vehicle body, so that the bulging portion can be formed large. The fuel tank 40 is supported by the left and right pipe frames 12 via the flanges 40la and 402a as described later.

FIG. 4 is a detailed view of a mounting bolt portion of the fuel tank 40, and FIGS. 5 and 6 are a side view and a plan view showing details of a vehicle rear portion including a fuel tank according to the present invention. As described above, the left and right upper pipe frames 12 inclined rearward are provided on both lower sides of the seat 10 of the motorcycle, and the left and right upper pipe frames 12 support the battery 49, the fuel tank 40, and the like. To be done. As shown in FIG. 4, the fuel tank 40 is attached to the pipe frame 12 with four bolts 403 via the flanges 40a (40la, 402a) protruding from the side surface of the fuel tank 40. It is performed by fixing it to a bracket 406 made of an angle member or the like fixed to the frame 12. In this case, a hard rubber grommet 404 is interposed as a rigid rubber damper between the flange 40a (401a, 402a) and the bracket 406 on the pipe frame side. 410 is a washer and 411 is a color for protecting the grommet. By interposing such a rubber damper, it is possible to reduce high-frequency vibration noise transmitted from the engine.

As shown in FIG. 5, a rubber load receiver 405 is provided on the bottom plate 10 a of the seat 10. As shown in FIG. 6, the load receivers 405 contact four positions on the upper surface of the fuel tank 40 and two left and right positions on the upper surface of the rear rear bracket 50. The load applied to the seat 10 is supported by the shaft 11a of the seat hinge pipe 11 at the front end of the seat, and through these rubber load receivers 405, four positions on the upper surface of the fuel tank 40 and the upper surface of the rear bracket 50. Supported in two places. The position, number, shape, etc. of the load receivers 405 that come into contact with the upper surface of the fuel tank 40 are not limited to the four positions shown in the figure, but can be set arbitrarily.

The left and right pipe frames 12 are connected by a rear bracket 50 at their rear ends. A handle seat (grab bar) 41 and a seat lock including a lock cylinder 52 are attached to the rear bracket 50. The U-shaped hook bar 57 with which the hook of the seat lock engages is attached to the lower rear surface of the seat bottom plate 10 a of the seat 10. A rear fender 25 is mounted between the left and right pipe frames 12, and a tail lamp 43 is mounted between the rear fender 25 and the handle sheet (grab bar) 41. Further, the ends of the lower pipe frame 13 are welded and fixed to the left and right upper pipe frames 12, and the lower pipe frame 13 is connected to the lower gusset 8 in FIG. The rear fender 25 is fixed to the rear bracket 50 and the lower pipe frame 13.

Below the seat 10, an oil tank 48 having an oil cap 53 on the upper surface and a battery 49 are arranged in front of the fuel tank 40 having a fuel supply cap 54 on the upper surface, and both side surfaces are entirely covered with a vehicle body. It is covered by the left and right rear side covers 70 that form part 14. The rear fender 25 between the left and right pipe frames 12 is also covered by the seat 10 and the rear side cover 70 of the vehicle body cover 14 except for its rear end.

FIG. 7 is a side view of the oil tank 48 and the battery assembly 49a as viewed from the right side of the vehicle body. The bottom side of the oil tank 48 is held by inserting the protrusion 700 provided on the lower surface thereof into the hole of the grommet 706 mounted on the bracket 701 fixed to the vehicle body frame. The upper side of the oil tank 48 is fixed to the upper end of the seat hinge pipe 11 with a screw 11b.

The battery 49 is housed in the battery box 702 and constitutes a battery assembly 49 a. In the battery 49 of the battery assembly 49a, an elastic band 703 having hooks at both ends is provided on a hook 704 provided on the front side surface of the battery box 702 and a hook 705 provided on the front side surface of the fuel tank 40. It is fixedly held in the battery box 702 by being hooked and band-fixed.

The battery box 702 is held on the flange 40a by inserting the protrusion 708 at the bottom thereof into the hole of the grommet 707 attached to the flange 40a (40la, 402a) of the fuel tank 40. The back side wall 702a of the battery box 702 is mounted so that the upper end thereof abuts the lower surface of the hook 705 fixed to the fuel tank 40. In this way, the lateral movement of the battery box 702 is restricted by bringing the upper edge of the side wall 702a of the battery box 702 into contact with the lower surface of the hook 705 having a certain width. With such a configuration, the battery assembly 49a is firmly fixed and held on the front side surface of the fuel tank 40 by the elastic band 703 in the front-rear direction of the vehicle body, and the rear side wall 702a of the battery box 702 in the left-right direction. Is engaged with the lower surface of the hook 705 to be fixedly held without vibrating.

Further, since the battery assembly 49a is mounted by inserting it into the flange 40a of the fuel tank 40 via the grommet, there is no need for a special mounting bracket, stay, etc. The weight is reduced and the space for arranging other parts is allowed to be expanded, which can contribute especially to the increase in the capacity of the fuel tank.

Further, since the flange 40a of the fuel tank 40 is attached to the vehicle body frame side via the rubber grommet 404 (FIG. 4) as described above, this configuration itself protects the battery assembly 49a. The vibration action is obtained, and the vibration isolation function is further enhanced in combination with the action of the grommet 707 and the elastic band 703 which hold the battery assembly 49a.

[0030]

[Effect of the invention]

 As described above, in the present invention, since the battery box containing the battery is held via the flange of the fuel tank, a special bracket for mounting or a holding member such as a stay is not required. In addition, the number of parts and the weight of parts are reduced, and the man-hours for welding the holding members such as brackets and stays are not required. Also, by reducing the number of parts such as brackets, stays and other holding members, it is possible to increase the space for arranging other parts, which in particular can contribute to increasing the capacity of the fuel tank.

[Brief description of the drawings]

FIG. 1 is a side view of a motorcycle to which a battery box mounting structure according to the present invention is applied.

FIG. 2 is a side view of a rear portion of a vehicle including a battery box mounting structure according to the present invention.

FIG. 3 is a sectional view of a rear portion of a vehicle including a battery box mounting structure according to the present invention.

FIG. 4 is a detailed view of a fuel tank mounting bolt portion.

FIG. 5 is a side view of a rear portion of a vehicle including a battery box mounting structure according to the present invention.

FIG. 6 is a plan view of a rear portion of a vehicle including a battery box mounting structure according to the present invention.

FIG. 7 is a side view showing parts of an oil tank and a battery.

[Explanation of symbols]

 1: Motorcycle 2: Steering shaft 3: Head pipe 4: Down tube 5: Engine 6: Bracket frame 7: Main stand 8: Lower gusset 9: Upper gusset 10: Seat 11: Seat hinge pipe l2: Upper pipe frame 13 : Lower pipe frame 14: Body cover 15: Handle crown 16: Handle 17: Front fork pipe 18: Front wheel 19: Cowling 20: Headlight 21: Rear wheel 22: Rear arm 23: Chain cover 24: Front fender 25: Rear fender 25a : Tire house part 26: Front side cover 40: Fuel tank 40a: Flange 41: Handle seat 42: Tail cowl 43: Tail lamp 44: Extension part 48: Oil tank 49: Battery 49a: Battery assembly 0: Rear bracket 52: Lock cylinder 53: Oil cap 54: Fuel supply cap 57: Hook bar 400a: Lower bulge 401: Upper case 40la: Flange 402: Lower case 402a: Flange 403: Bolt 404: Grommet 405: Load Receiver 700: Protrusion 70l: Bracket 702: Battery box 703: Band 704, 705: Hook

Claims (2)

[Utility model registration claims] 1. A motorcycle in which a fuel tank is arranged between left and right frames below a seat, a flange is provided outside each opening of an upper case and a lower case, and the flanges of the upper case and the lower case are joined to each other. And a bottom holding member for holding the bottom of the battery box accommodating the battery via a flange on the front side of the fuel tank, and the upper end of the battery box fixed to the front side of the fuel tank. The elastic band with the hooks on both sides is hooked between the hook on the front side of the battery box and the hook on the front side of the fuel tank. And an upper holding member for mounting a battery box for a motorcycle. 2. The battery for a motorcycle according to claim 1, wherein the bottom holding member is held on the flange by inserting a protrusion formed on the bottom of the battery box into a hole of a grommet mounted on the flange of the fuel tank. Box mounting structure.