JP6336616B2 - Reserve tank mounting structure for scooter - Google Patents

Description

  The present invention generally relates to an improved mounting structure for a radiator reserve tank that attaches to the center of an inner rear fender of a unit swing engine scooter.

  Various layouts have been proposed on a scooter having a water-cooled engine to provide the scooter with a predetermined volume of space that can conveniently position engine cooling components such as radiators and corresponding radiator reserve tanks therein. Japanese Patent Application Laid-Open No. 2013-103559 discloses a scooter 10, which includes a radiator 80 mounted on an engine crankcase 42 on one side of the scooter 10, a swing arm 94, and engine crankcases 172 and 173. And a reserve tank 130 attached on one side of the inner rear fender 100. The reserve tank 130 and the radiator 80 are arranged on the same side of the scooter 10, and the reserve tank 80 is arranged inside the entire width of the scooter body. The inner rear fender 100 has a suspension member 107 that is integrally formed with the inner rear fender and protrudes to the side, and suspends the reserve tank 130 on the side of the inner rear fender 100.

Japanese Unexamined Patent Publication No. 2013-103559

In the conventional technology, since the reserve tank is positioned on the swing arm, the reserve tank placed horizontally on the scooter is clearly visible from the rear side, and combined with the part protruding to the side of the rear inner fender that covers this reserve tank. The scooter body width is increased. After all, this design of the inner fender is not so elegant or beautiful, and the scooter's lateral dimension is not desirable. Furthermore, if the distance between the unit swing pivot and the reserve tank is long, the upward movement of the reserve tank becomes large even when the rotation angle of the unit swing engine is the same. There are only two options for solving the problem of avoiding contact with the cover member mounted above the reserve tank, that is, the width of the upper cover member with respect to the vertical direction of the reserve tank is widened or reduced. In addition, the lateral protrusion of the rear inner fender does not cover the reserve tank nozzle or cap, which adversely affects the aesthetic design of the scooter. Furthermore, since the nozzles and caps of the reserve tank are directly exposed to the external environment, mud accumulates on these members. If the nozzles and / or caps are dirty, the user's hands will be unnecessarily dirty during maintenance work.
Therefore, the problem to be solved is a reserve for a scooter in which the width of the scooter is slimmer, the aesthetics of the scooter is improved, the upward movement of the reserve tank is small, and the nozzle and cap of the reserve tank are highly clean It is to provide a tank mounting structure.

According to the present invention according to claim 1, there is provided a reserve tank mounting structure for a unit swing engine scooter having a scooter body, the radiator being integrally mounted on the water cooling engine of the unit swing engine scooter, and the water cooling engine. A rear inner fender that is integrally mounted and disposed at a front spherical portion position of a rear tire of the unit swing engine scooter, and is in fluid communication with the water-cooled engine and for storing the coolant for the water-cooled engine. A reserve tank coupled to the scooter body, the reserve tank being disposed close to a center position of the scooter body and at a front position of the rear inner fender , wherein a rear side surface of the reserve tank is disposed on the rear inner fender. Fe Reserve tank mounting structure having a shape that matches the front surface of the front portion of the loaders is provided.

According to the present invention according to claim 2, At a reserve tank mounting structure according to claim 1, forward position of the inner fender is seen including a mounting portion for assembling the reservoir tank,
The reserve tank includes two attachment points at an upper left portion and a lower right portion as viewed from the front side, and a diagonal line connecting the two attachment points passes through the center line of the scooter body as seen from the front side. To do .

  According to the present invention according to claim 3, in the reserve tank mounting structure according to claim 1, the reserve which covers both sides, the upper part and the front part of the reserve tank, and further covers the mounting part of the reserve tank. Tank cover means is positioned at an upper front position of the rear inner fender, and the reserve tank is attached to a space between the reserve tank cover means and the rear inner fender.

According to the invention of claim 4, in the reserve tank mounting structure according to claim 3, the reserve tank cover means is connected to the rear inner fender by a bolt at a side position of a front portion thereof, and The hook portion is engaged with the rear inner fender at the upper rear side position of the rear inner fender.
According to the invention of claim 5, in the reserve tank mounting structure according to claim 4, the reserve tank cover means is for monitoring a coolant height indicator positioned on a body of the reserve tank. Including a monitoring window, the monitoring window being formed on the same side as the mounting point of the bolt and at a side position of the front portion of the reserve tank cover means.

  According to the invention of claim 6, in the reserve tank mounting structure according to claim 4, the bolt mounting portion and the radiator cover at a side position of the front portion of the reserve tank cover means are provided. The radiator cover is seen as a cover member for the radiator when viewed from the side surface.

  According to the seventh aspect of the present invention, in the reserve tank mounting structure according to the first aspect, the reserve tank includes two mounting points at an upper left portion and a lower right portion when viewed from the front side. The oblique line connecting the two attachment points passes through the center line of the scooter body as viewed from the front side.

  According to the present invention of claim 8, in the reserve tank mounting structure of claim 3, the design shape in which the outer design surface of the rear inner fender and the outer upper design surface of the reserve tank cover means match. The outer design surface of the rear inner fender is connected to the upper surface of the reserve tank cover means.

  According to the invention of claim 9, in the reserve tank mounting structure according to claim 1, the rear inner fender includes a fender portion that covers an outer spherical portion of a scooter rear tire, and the reserve tank from the fender portion. And an extension projecting forward under a substantially flat configuration substantially covering the engine crankcase, wherein the flat configuration of the extension has an inner width of the engine crankcase. The extension of the engine crankcase substantially covers the width of the engine crankcase, and the extension includes a clamp portion for clamping at least the electric harness or hose in plan view.

According to a tenth aspect of the present invention, in the reserve tank mounting structure according to the seventh aspect, the rear side surface of the reserve tank is formed in an arc shape that matches the reserve tank support portion of the rear inner fender.
According to the eleventh aspect of the present invention, in the reserve tank mounting structure according to the second aspect, the front inner surface of the front portion of the rear inner fender is viewed from the side of the scooter body. The rear portion of the reserve tank is inclined so that it can be seen at a position higher than the front portion, the attachment point of the upper left position of the reserve tank is disposed at the rear position of the reserve tank, and the lower right position of the reserve tank An attachment point is disposed at a position in front of the reserve tank as viewed from the side of the scooter body.

According to the first aspect of the present invention, the reserve tank is disposed close to the center position of the scooter body and on the front side of the rear tire, and the rear surface of the reserve tank matches the front portion of the rear inner fender. Due to the shape, the structure of the reserve tank itself is not conspicuous when viewed from the side of the scooter body, thus improving the aesthetic appearance of the scooter body. In addition, the distance between the engine pivot and the reserve tank is shorter or considerably shorter than when the reserve tank is installed at the side position of the swing arm. As a result, the vertical movement of the reserve tank due to the pivot operation of the swing engine unit is reduced. Will be reduced. Thus, the reserve tank has no corresponding effect on the upper body cover member of the scooter.

According to the present invention described in claim 2, since the reserve tank is incorporated only at the position of the rear inner fender via the two attachment points of the reserve tank, the reserve tank can be manufactured as a subassembly, and thus The efficiency of the scooter assembly method is increased. In addition, the rear inner fender is formed or cast by plastic injection, facilitating casting fabrication of built-in structures such as bosses and thus simplifying the structure facilitates the scooter assembly process.

  According to this invention of Claim 3, since a reserve tank is covered with a cover means, the aesthetic appearance on the design of a scooter is improved, and a reserve tank is protected from invasion of water. The nozzles and caps of the reserve tank are covered with cover means and thus protected from dirt or debris accumulation. Thus, the user's hand is not soiled during maintenance work such as charging the coolant into the reserve tank of the scooter.

  According to the invention of claim 4, the cover means is engaged with the hook portion at the upper position of the rear inner fender and is bolted to the rear inner fender at the position of the side portion (left side when viewed from the front). As a result, the number of attachment points is reduced, and scooter assembly is facilitated and speeded up. As a result, the aesthetic appearance of the scooter is further improved by the above configuration.

  According to the invention of claim 5, the coolant height indicator of the reserve tank can be observed through the monitoring window of the cover means, and since the monitoring window and the bolt mounting point are on the same side, The accuracy check of the reserve tank and cover means assembly when assembling with bolts is supported. The height of the coolant stored in the reserve tank can be monitored through the monitoring window during maintenance work.

  According to this invention of Claim 6, the attachment part of the volt | bolt which attaches a cover means to a rear inner fender is hidden, and cannot be seen from a side part. This mounting portion is further matched with the hook portion at the upper position on the rear side of the rear inner fender, thus improving the aesthetic appearance of the scooter design.

  According to the present invention as set forth in claim 7, the two attachment points at the upper left and lower right positions can support the reserve tank body to increase the rigidity of the assembly, thus eliminating additional attachment or support components. To do. Furthermore, since the mounting points are distributed to the left and right sides of the scooter body, the tilting force applied to the reserve tank from the left and right directions can be effectively distributed, and this mounting structure allows the scooter to tilt. Is effectively supported.

  According to the present invention as set forth in claim 8, the appearance that the rear inner fender and the cover means constitute a single component is provided by the design shape that matches the outer surface of the rear inner fender with the upper surface of the cover means. . This arrangement increases the attractiveness of the scooter design and further makes the reserve tank inside the cover means less noticeable.

  According to the present invention described in claim 9, since the rear inner fender has an extension portion protruding forward as a wide horizontal cover above the engine crankcase and below the reserve tank, a fallen bolt or screw can be recalled or Recovery is facilitated. Furthermore, the clamping part helps to establish and maintain the position of the electrical harness held by this clamping part, and further prevents entanglement and breakage of the electrical harness, hose and / or cable.

  According to the invention of claim 10, the reserve tank is not only supported by the mounting bolts fixed at the upper left and lower right positions, but a part of the rear surface of the reserve tank is supported by the rear inner fender. The support of the reserve tank is further increased because it has an arc shape that matches the portion, and the space of the reserve tank is minimized based on the capacity of the arc shape.

FIG. 1A is a right side view showing a rear portion of a unit swing engine scooter showing a reserve tank mounting structure according to an embodiment of the present invention. FIG. 1B is a right side view of the scooter of FIG. 1A. FIG. 1C is a right side view of the scooter of FIGS. 1A and 1B. FIG. 2 is an exploded perspective view showing the reserve tank cover means, the reserve tank, and the rear inner fender for a particular mounting portion, structure, or element according to one embodiment of the present invention. FIG. 3 is a perspective view showing the cover means attached to the rear inner fender according to one embodiment of the present invention. 4 is a cross-sectional view of FIG. 3 taken along line AA. 5 is a cross-sectional view of FIG. 3 taken along line BB. FIG. 6 is a right side view showing a monitoring window positioned on the cover means and a coolant height indicator positioned on the body of the reserve tank, in accordance with one embodiment of the present invention. FIG. 7 is a front view showing the positions of the two attachment points of the reserve tank according to one embodiment of the present invention. FIG. 8 is a perspective view showing the outer design surface of the rear inner fender and the upper design surface of the cover means according to one embodiment of the present invention. FIG. 9 is a plan view illustrating a substantially flat configuration on a forward projecting rear inner fender extension according to an embodiment of the present invention. FIG. 10 is a plan view showing the configuration of the reserve tank for the other elements of the unit swing engine scooter according to one embodiment of the present invention. FIG. 11A is a cross-sectional view taken along line CC in FIG. FIG. 11B is a cross-sectional view of FIG. 7 taken along line DD, with the connecting hose connecting the reserve tank to the radiator removed. FIG. 11C is a cross-sectional view of FIG. 7 taken along line EE. FIG. 11D is a cross-sectional view of FIG. 7 taken along line FF.

  1A-1C are right side views illustrating the rear of a unit swing engine scooter 10 (hereinafter also referred to as "scooter"), which includes a reserve tank mounting structure according to one embodiment of the present invention. Yes. The scooter 10 includes a lower structural frame that supports a seat 2 on which a rider and passenger can sit. Also included on the front side of the scooter seat 2 is a step floor 4 having an upper surface that supports the rider's feet. Behind the seat 2 is a grip rail 3 that can be gripped by the passenger while the scooter 10 is on board. The scooter 10 also includes a rear combination light 8 combining a tail lamp, stop lamps, a rear winker, and the like, and a rear outer fender 30 positioned below the rear combination light 8. The structural frame of the scooter is covered or covered by a number of panels or cover members in a manner known to those skilled in the art. For example, the scooter 10 has a pair of rear body covers 50a, 50b, a pair of lower covers 51, and a pair of lower covers 51 disposed on both sides of the scooter 10 and below the seat 2 and adjacent to the seat. A pair of center side covers 52 on both sides may be included. Further, a center cover 54 is provided below the front portion of the seat 2.

  A water-cooled engine 20 (hereinafter also referred to as “engine”) is positioned below the seat 2. The engine 20 has a configuration that generates propulsion or driving force that can be delivered to the rear wheel 6 that carries the rear tire 7. The engine 20 is mounted not only on the rear arm 12 of the scooter 10 but also on the engine pivot 22 of a crankcase 48 (shown in FIGS. 7 and 10) linked to the scooter structural frame, thus the engine mounts the engine pivot 22. As a center, it can be pivotally biased, and not only the engine 10 but also the components carried / attached to / by the engine can be pivotally biased in a manner readily understood by those skilled in the art. Still referring to FIG. 10, the scooter 10 also includes an air cleaner 14 including an air cleaner body 14a and a cover 14b. The air cleaner 14 on the left side of the scooter 10 is connected to the throttle body 40 by a connecting pipe 17. The throttle body 40 controls the air input to the engine 20 when operated by the rider's throttle. An intake passage between the throttle body and the engine has an injector. This intake system is called a fuel injection system. A belt converter covered with a belt converter cover 15 on the left side of the scooter 10 transmits the driving force of the engine to the rear wheel 6 of the scooter.

  The scooter 10 includes a rear cushion or rear suspension 9 that absorbs the swinging motion of the rear wheel 6 on the left side of the rear portion. As shown also in FIGS. 7 and 10, the scooter 10 includes a rear inner fender 26 that is disposed at the front spherical portion position of the rear tire 7 and at the front portion position of the rear wheel 6 and attached integrally with the engine 20. . The engine 20 further includes a radiator 24 in fluid communication with the engine 20 that is mounted on the right side of the engine over a side engine crankcase 48. The radiator 24 includes a radiator cap 24 a that allows the coolant to be added by opening and closing the radiator 24. In this embodiment, the center portion of the radiator 24 is aligned with the crankshaft. As shown in FIGS. 1B to 1C, a radiator cover member 25 including a ventilation slit attached to the radiator 24 covers the radiator 24.

  The scooter 10 further includes a reserve tank 28 that is in fluid communication with the radiator 24. The reserve tank includes a maintenance cap 28a. The reserve tank 28 is connected to the radiator 24 through a connecting hose 19 that provides a reservoir for the heated coolant discharged from the radiator 24 to flow in and return to the radiator 24 after the coolant has cooled. The reserve tank 28 is attached close to the center position of the scooter body and at the front position of the rear inner fender 26. 7 and 10 clearly show that the center line 94 of the scooter 10 penetrates the reserve tank 28, and thus the left and right sides of the reserve tank 28 are respectively arranged on the left and right sides of the center line 94. As shown in FIGS. 2 and 10, the connecting hose 19 between the radiator 24 and the reserve tank 28 allows the heated coolant from the radiator 24 to be discharged to the reserve tank 28. The reserve tank 28 includes a drain hose 18 that is connected to the nozzle position of the reserve tank and discharges the overheated coolant to the atmosphere.

  As shown not only in FIGS. 1A to 1C but also in FIGS. 2 to 4 and 8 to 9, the cover means 34 that covers, protects, and hides the reserve tank 28 is provided above the rear inner fender 26. Positioning or positioning is possible at the position of the part 62. The cover means 34 covers both sides, the upper part and the front part of the reserve tank 28. Therefore, the reserve tank 28 is positioned or stored at the position of the front portion 60 of the rear inner fender 26 in the space between the cover means 34 and the rear inner fender 26. The front part 60 has a recess with a solid cross-section for forming a space together with the cover means 34. The cover means 34 further covers attachment portions 64a and 64b for attaching the reserve tank 28 to the rear inner fender 26 shown in FIG.

  As shown in FIG. 1, a pivot arm formed across a distance 80 between the engine pivot 22 and the reserve tank 28 (eg, between the center of the engine pivot 22 and the center of mass of the reserve tank 28). Alternatively, the moment arm is shorter than a similar conventional pivot arm which corresponds to attaching a reserve tank to the side position of the rear arm 12. As a result, in one embodiment according to the present invention, the vertical distance or range over which the reserve tank 28 swings and traverses is reduced compared to the conventional type. As a result, the possibility of the reserve tank cover means 34 (and thus the reserve tank nozzle and cap 28a) coming into contact with the rear body covers 50a, 50b or the lowest part of the rear outer fender 30 due to the swinging of the engine unit is reduced. Further, the degree of freedom in designing the rear body covers 50a and 50b and the rear outer fender 30 is increased.

  FIG. 2 shows the cover means 34, the reserve tank 28, the rear inner fender attachment or attachment portions 64a, 64b of the scooter 10. The reserve tank 28 is assembled only to the rear inner fender 26, and thus the rear inner fender 26, the reserve tank 28, and the cover means 34 can be manufactured as an integrated subassembly that increases the efficiency of the scooter assembly process. Further, the rear inner fender 26 can be cast by a plastic injection method. In that case, the mounting of the reserve tank 28 to the rear inner fender 26 or the reserve tank 28 can be performed by casting a structural portion such as a protrusion or a boss 32. Attachment of the cover means 34 over the cover is facilitated, thus the rear inner fender structure is simple and unitary to support the scooter assembly process.

  Since the reserve tank 28 is disposed at or near the center of the scooter body and at the front side of the rear inner fender 26, the reserve tank 28 is located on the inner side or the innermost side of the scooter 10. When viewed from above, the visible features of the scooter 10 are not visible. The cover means 34 completely hides the reserve tank 28 below the cover means 34 including the nozzle and cap 28a. By concealing the reserve tank 28 by the cover means 34, the reserve tank 28 becomes less noticeable or unnoticeable when viewed from the side. Thus, the appearance design of the scooter 10 is slim and stylish, and its aesthetic appearance is improved compared to the conventional type. Further, the cover means 34 protects the reserve tank 28 from intrusion of water, dust, stones and the like. In addition, the reserve tank nozzle and cap 28 are hidden from the outside environment by the cover means 34. As a result, the reserve tank nozzles and caps 28a are significantly less prone to soil accumulation over time (e.g., can be kept clean or substantially clean) and can be used during maintenance operations involving the reserve tank 28 by the user. There is little risk of dirty hands.

  4 schematically shows a cross section along line AA in FIG. 3, and FIG. 5 schematically shows a cross section along line BB in FIG. As shown in FIG. 4, the cover means 34 is fixed to the front side portion of the rear inner fender 26 by a bolt 36 inserted into the rear inner fender 26 and a clip nut 36a. As shown in FIG. 5, the cover means 34 is also engaged with the rear inner fender 26 through the hole 26a at the mounting portion 27 position on the upper rear side of the rear inner fender 26 by the hook portion 38. 26 is secured to the body of the air cleaner 14 as further shown in FIG. With this configuration, the rear inner fender, the reserve tank, and the cover means are an assembly that has a small number of attachment points and thus supports the efficiency of the scooter assembly process. Further, this configuration provides the scooter 10 with a design aesthetic appearance.

  Referring to FIG. 6, the cover means 34 includes a monitoring window 42 for monitoring a coolant height indicator 44 provided on the body of the reserve tank 28. The monitoring window 42 is positioned on the same side of the cover means 34 as the bolt 36 attachment point, i.e. the front of the cover means 34. The coolant height indicator 44 of the reserve tank 28 displays the upper or maximum and lower or minimum height lines and can be observed through the monitoring window 42 of the cover means. Such observation through the monitoring window 42 can assist in confirming the assembly accuracy of the reserve tank 28 and the cover means 34. Further, the line height between the upper and the lower of the coolant stored in the reserve tank 28 can be judged or monitored through the monitoring window 42 during the maintenance work.

  As shown in FIG. 6, the radiator cover member 25 and the reserve tank cover means 34 are designed to cooperate with each other, and thus the radiator cover member 25 is located at the side of the front portion of the cover means 34, the mounting portion and the corresponding portion. The bolt 36 to be covered is covered. Accordingly, the attachment portion of the cover means and the corresponding bolt 36 are not visible when viewed from the side. This hiding of the mounting portion and the bolt 36 further improves the aesthetic appearance of the scooter. The mounting portions 64a and 64b of the reserve tank 28 are also covered by the cover member 34 of the reserve tank.

  FIG. 7 shows a front view of a reserve tank 28 attached to the rear inner fender 26 and further fluidly connected to the radiator 24 according to one embodiment of the present invention. In one embodiment, the reserve tank 28 is attached to the inner fender 26 by bolts, screws, or other fastening elements at two attachment points 46a, 46b. Specifically, the first attachment point 46 a is positioned at the front of the reserve tank 28 or at the upper left position when viewed from the front, and the second attachment point 46 b is positioned at the lower left portion when viewed from the front of the reserve tank 28. A diagonal line 92 connecting the two attachment points 46a and 46b (for example, passing through the center of each attachment point 46a and 46b) passes through the center line 94 of the scooter 10. Two attachment points 46a, 46b allow the body of the reserve tank 28 to be placed on its upper left and lower right in a manner that allows for high rigidity of the assembly without the need for additional reserve tank attachment or support components. Support with part. Further, by arranging the attachment points 46a and 46b on the left and right sides of the scooter body, the right and left direction forces applied on the reserve tank 28 when the scooter 10 is tilted are effectively distributed, and the reserve on the left and right sides of the scooter body is provided. The balance of the tank 28 is maintained.

  The upper projecting ridge lines 95a-c, 95d, where the outer surface 96 of the rear inner fender 26 and the upper surface 98 of the cover means 34 are generally locations where the rear inner fender 26 and the cover means 34 match or connect with each other. FIG. 8 is a perspective view and FIG. 9 is a plan view showing a state in which .about.f has a corresponding, matching, or matching shape feature. Due to this configuration of the cooperative shape feature 95, the rear inner fender 26 and the cover means 34 have a single structural element appearance, and thus the presence of the reserve tank 28 is hardly noticeable. As a result, the appeal of the scooter design is further enhanced.

  2 and 3, and further referring to FIGS. 9 and 10, the rear inner fender 26 includes a fender portion 66 that covers the front outer spherical portion of the rear tire 7 of the scooter, and an extension 68 that protrudes forward from the fender portion 66. Including. The extension 68 includes a substantially flat or flat portion, region, or configuration 69 that extends at least forward of the reserve tank 28, which generally extends a predetermined distance beyond the forward portion of the reserve tank 28. Is done. In one embodiment, the substantially flat configuration 69 has a shape that corresponds to a tray. Furthermore, the extension 68 covers the width of the engine crankcase 48 at least partially or substantially entirely. Specifically, the width of the substantially flat configuration 69 of the extension 68 is dimensioned to be equal or substantially equal to the inner width of the engine crankcase 48.

  As shown in FIG. 9, the rear inner fender 26, and in particular its extension 68, includes one or more cables and / or clamp portions 72a-c that are suitably positioned to clamp the hose. . For example, as illustrated in FIG. 10, the clamp portions 72 a-c can be configured to receive the electrical harness 56. The clamp portions 72a-c assist in establishing and maintaining the intended position of the electrical harness 56, and the electrical harness 56 can be tangled with other cables / hoses or damaged during assembly of other scooter parts. Can prevent. In addition, the extension 68 includes a substantially flat configuration 69 so that bolts, screws or other fasteners or parts that fall during the scooter assembly or maintenance procedure can be recovered from the substantially flat configuration 69. Alternatively, recall can be facilitated.

  FIG. 11A schematically illustrates the cross-section CC of FIG. 7 and illustrates that the outer surface of the reserve tank 28 can be shaped or conformed to the shape of the equivalent surface of the rear inner fender 26 or can be contoured. Specifically, as shown in FIG. 11A, the rear surface 29 of the reserve tank 28 matches the reserve tank support, region or section of the front surface of the front portion 60 of the rear inner fender where the reserve tank 28 is positioned or attached. , Have a shape that fits together or fits together. Such shape matching corresponds to a surface having matching curves in the illustrated embodiment. As a result, the reserve tank 28 is not only supported by bolts / screws at the upper left and lower right attachment point positions 46a and 46b, but the rear surface 29 of the reserve tank matches the front portion 60 of the rear inner fender. Therefore, a part of the reserve tank 28 is also supported by the front surface of the front portion 60 of the rear inner fender. Moreover, a similar or corresponding arc-shaped surface of the reserve tank 28 allows the reserve tank 28 to be positioned closer to the rear inner fender 26, which can provide the reserve tank structure with as much capacity as possible. It should be compact or very compact.

  FIG. 11B schematically shows the cross section DD of FIG. 7 with the connecting hose 19 fluidly connecting the reserve tank 28 to the radiator 24 omitted. In FIG. 11B, the upper left portion of the reserve tank 28 is formed by a first bolt 46a and a first clip nut 46c (for example, corresponding to the upper left attachment point 46a of the reserve tank described above with reference to FIG. 7). A state of being attached to the rear inner fender 26 is shown. FIG. 11B illustrates an aspect of a specific structure of the reserve tank 28 including the reserve tank cap 28a, the initial fluidizing section or passage 28b, and the main body 28c. The first bolt 46a and the first clip nut 46c are disposed above the main body 28c of the reserve tank, generally or substantially at a height corresponding to the initial flow path 28a of the reserve tank.

  FIG. 11C schematically illustrates the cross-section EE of FIG. 7 and is designed to match, match or match the reserve tank support of the front portion 60 of the rear inner fender 26 of the main body 28c of the reserve tank in one embodiment. The rear side including the rear surface 29 is shown. FIG. 11C also shows how the connecting hose 19 is connected to the lower part or the bottom of the main body 28c of the reserve tank.

  FIG. 11D schematically shows the cross-section FF of FIG. 7, and the lower right portion of the reserve tank 28 is connected to the second bolt 46b and the second clip nut 46d (for example, the lower right portion of the reserve tank described above with reference to FIG. 7). A state of attachment to the rear inner fender 26 is shown by a point corresponding to the attachment point 46b). The second bolt 46 b and the second clip nut 46 d are disposed below the main body 28 c of the reserve tank 28. For those skilled in the art, regarding the addition of coolant to the reserve tank 28, the cap 28a is opened, the coolant flows downward through the opened cap 28a, and flows downward through the initial flow path 28b, and the initial flow path 28b, the main body 28c, It will be understood that it flows further downward through the connection between the two and flows further downward into the main body 28c. Those coolant channels are shown in FIG. 11D by a series of five downward arrows.

2 Seat 3 Grasping rail 4 Step floor 6 Rear wheel 7 Rear tire 8 Rear combination light 9 Rear suspension 10 Unit swing engine scooter / scooter / engine 12 Rear arm 14a Air cleaner body 14b Cover 14 Air cleaner 15 Belt converter cover 17 Connection pipe 18 Drain hose 19 Connecting hose 20 Water-cooled engine / engine 22 Engine pivot 24 Radiator 24a Radiator cap 25 Radiator cover member 26 Rear inner fender / inner fender 28 Reserve tank 28a Cap / initial flow path 28b Passage / initial flow path 28c Main body 29 Rear surface 30 Rear outer Fender 34 Cover means / Reserve tank cover means / Cover member 36 Bolt 36a Lip nut 38 Hook portion 40 Throttle body 42 Monitoring window 44 Indicator 46a Attachment point / first bolt 46b Attachment point / second bolt 46c First clip nut 46d Second clip nut 48 Crankcase 48 Side engine crankcase / engine crankcase 50a Rear body cover 52 Center side cover 54 Center cover 56 Electric harness 60 Front part 64a Attachment part 66 Fender part 68 Extension part 69 Substantially flat structure 92 Diagonal line 94 Center line 95 Cooperative shape feature part 96 Outer surface 98 Upper surface

Claims (10)

A reserve tank mounting structure for a unit swing engine scooter having a scooter body,
A radiator integrally attached to the water-cooled engine of the unit swing engine scooter;
A rear inner fender that is integrally attached to the water-cooled engine and is disposed at a front spherical portion position of a rear tire of the unit swing engine scooter;
A reserve tank in fluid communication with the water-cooled engine and coupled to the radiator to contain reserve coolant for the water-cooled engine;
Including
The reserve tank is arranged close to the center position of the scooter body and at the front position of the rear inner fender,
A reserve tank mounting structure in which a rear side surface of the reserve tank has an arc-shaped surface that coincides with a front surface having an arc-shaped cross section of a front portion of the rear inner fender that covers a front outer spherical portion of the rear tire . The front position of the inner fender includes a mounting portion for assembling the reserve tank,
The reserve tank includes two attachment points at an upper left portion and a lower right portion as viewed from the front side, and a diagonal line connecting the two attachment points passes through the center line of the scooter body as seen from the front side. The reserve tank mounting structure according to claim 1.   The reserve tank cover means for covering both sides, the upper part, and the front part of the reserve tank, and further covering the attachment part of the reserve tank is positioned at the upper front part position of the rear inner fender, and the reserve tank is The reserve tank mounting structure according to claim 1, wherein the reserve tank mounting structure is mounted in a space between the reserve tank cover means and the rear inner fender.   The reserve tank cover means is connected to the rear inner fender by a bolt at a side position of a front portion thereof, and engaged with the rear inner fender at a position of an upper rear side of the rear inner fender by a hook portion. Item 4. The reserve tank mounting structure according to Item 3.   The reserve tank cover means includes a monitoring window for monitoring a coolant height indicator displayed on a body of the reserve tank, the monitoring window being on the same side as the bolt attachment point; and The reserve tank mounting structure according to claim 4, wherein the reserve tank cover structure is formed at a side surface position of a front portion of the reserve tank cover means.   The bolt mounting portion in the side position of the front portion of the reserve tank cover means and the radiator cover are designed to overlap, and the radiator cover is a cover member for the radiator as viewed from the side surface thereof. The reserve tank mounting structure according to claim 4, which is visible.   The reserve tank includes two attachment points at an upper left portion and a lower right portion as viewed from the front side, and a diagonal line connecting the two attachment points passes through the center line of the scooter body as seen from the front side. The reserve tank mounting structure according to claim 1.   A design shape in which an outer design surface of the rear inner fender and an outer upper design surface of the reserve tank cover means are matched, and the outer design surface of the rear inner fender is connected to the upper surface of the reserve tank cover means. Item 4. The reserve tank mounting structure according to Item 3. The rear inner fender includes a fender portion that covers an outer spherical portion of the scooter rear tire; and
An extension projecting forward from the fender portion to a front portion of the reserve tank under a substantially flat configuration substantially covering the engine crankcase;
The flat configuration of the extension substantially covers the width of the engine crankcase at a position equal to the inner width of the engine crankcase, and the extension clamps at least the electric harness or hose in plan view. The reserve tank mounting structure according to claim 1, further comprising a clamping portion.   The front surface of the front part of the rear inner fender is inclined so that the rear part of the rear inner fender can be seen at a higher position than the front part when viewed from the side of the scooter body. The attachment point at the upper left position is disposed at the rear position of the reserve tank, and the attachment point at the lower right position of the reserve tank is disposed at the front position of the reserve tank when viewed from the side of the scooter body. 2. The reserve tank mounting structure described in 2.

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