WO2018060906A1 - Structure de guidage d'air pour véhicule à deux roues - Google Patents

Structure de guidage d'air pour véhicule à deux roues Download PDF

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Publication number
WO2018060906A1
WO2018060906A1 PCT/IB2017/055945 IB2017055945W WO2018060906A1 WO 2018060906 A1 WO2018060906 A1 WO 2018060906A1 IB 2017055945 W IB2017055945 W IB 2017055945W WO 2018060906 A1 WO2018060906 A1 WO 2018060906A1
Authority
WO
WIPO (PCT)
Prior art keywords
air guide
cover
guide structure
vehicle
wheeled vehicle
Prior art date
Application number
PCT/IB2017/055945
Other languages
English (en)
Inventor
Yogesh CHANDRAKANT KOTNIS
Meganathan MOHANKUMAR
Kanika PAYNE
Kandasamy MALARKOD
Sundararaman GANESH RAM
Muhammed ALTAF MAKANDAR
Original Assignee
Tvs Motor Company Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tvs Motor Company Limited filed Critical Tvs Motor Company Limited
Publication of WO2018060906A1 publication Critical patent/WO2018060906A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
    • B62K11/02—Frames
    • B62K11/10—Frames characterised by the engine being over or beside driven rear wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/08—Air inlets for cooling; Shutters or blinds therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J17/00—Weather guards for riders; Fairings or stream-lining parts not otherwise provided for
    • B62J17/10—Ventilation or air guiding devices forming part of fairings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/12—Motorcycles, Trikes; Quads; Scooters
    • B60Y2200/126—Scooters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K2202/00—Motorised scooters

Definitions

  • the present invention relates to a two-wheeled vehicle. More particularly, the present invention relates to an air guide structure for the two-wheeled vehicle.
  • Such motorized cycles often referred to as scooter type vehicle, may include a body cover which surrounds the engine to improve the outer appearance of the vehicle and protect the component elements of the vehicle.
  • body cover tend to trap hot air heated by the engine and hence adversely affect the engine and other components positioned therebehind.
  • both the engine and the exhaust systems are arranged inside the body of the vehicle.
  • the engine is covered by the body cover including side covers and an under seat cover disposed below a rider's seat.
  • one or more louvers are formed in the under seat cover of the vehicle.
  • the air guide structure provided in the body cover enhances a cooling efficiency and facilitates in drawing outside air into the vehicle body.
  • Fig.l is a left-hand side view of a two-wheeled vehicle according to one embodiment of the present invention.
  • Fig.2 is a perspective view of the two-wheeled vehicle illustrating an air guide structure as per one embodiment of the present invention.
  • FIG.3 is a perspective view of a under seat cover extending upwardly from a step floor and illustrating the air guide structure formed in at least a portion of said under seat cover as per one embodiment of the present invention.
  • FIG.4 is a perspective view of a rear surface of the under seat cover illustrating the air guide structure with a cover member as per one embodiment of the present invention.
  • Fig.5 shows a perspective exploded view of the air guide structure located on the under seat cover as per one embodiment of the present invention.
  • Fig.5a is a perspective view of the cover member as per one embodiment of the present invention.
  • Fig. 6 is an enlarged plan view of at least a portion of the under seat cover illustrating at least one projecting member extending from at least one surface of the air guide structure as per one embodiment of the present invention.
  • Fig.7 is a sectional view of the air guide structure and the cover member located on the under seat cover along the longitudinal direction of the vehicle as per one embodiment of the present invention.
  • an internal combustion engine hereinafter DengineD
  • a rear wheel a muffler, an air cleaner, a carburetor and electrical equipment units and the like
  • DengineD internal combustion engine
  • the side cover located one on each side of the vehicle body together with the under seat cover surrounds the engine and protects the associated equipment units from mud splashed from the rear wheel, water, or dust, as well as temperatures generated by the engine and the associated equipment units.
  • said side covers with the under seat cover tends to trap hot air heated by the engine, the exhaust pipe, and the muffler, and such hot air adversely affects the operation of the engine intake system.
  • said vehicle body cover is provided with side vents and one or more louvers in the form of an air guide structure for effective intake of outside air into the vehicle.
  • the air guide structure serves as an inlet for outside air for the engine and other associated equipment units, which ultimately reduces unnecessary heating of a storage box on the top.
  • the existing air guide structure formed in the under seat cover of the body cover results in the visibility of one or more internal mounting details being provided to the rear of the under seat cover. Such internal mounting details including paint hooks, fasteners, a self -tapping boss for securing the under seat cover to a vehicle frame are visible when seen from outside, thereby affecting the appearance of the vehicle.
  • a cover member or a lid is detachably fastened to the air guide structure to stop or reduce the tappet noise with respect to the valve clearance.
  • said cover member or lid reduces the intake of sufficient amount of the outside air required for efficient cooling of the vehicle.
  • the conventional design and arrangement of the air guide structure and the cover member on the body cover of the vehicle has various disadvantages including, but not limited to inefficient cooling performance of the vehicle.
  • an improved air guide assembly for the vehicle which comprises of a modified design of the air guide structure and the cover member and further which can facilitates an efficient intake of outside air into the vehicle without largely effecting the direction of flow of the introduced air and additionally prevents the visibility of the internal mounting details of the vehicle, thereby improving the appearance, overall performance and operability of the vehicle.
  • the present invention discloses a modified air guide structure formed in at least a portion of the under seat cover of the vehicle to effectively introduce the outside air into the vehicle body and hence enhances the cooling process of the vehicle. Further, one embodiment of the present invention discloses the modified cover member configured to be detachably fastened to the air guide structure from the rear surface of the under seat cover in order to reduce the tappet noise produced by the engine, thereby providing an improved riding comfort and vehicle performance.
  • a scooter-type two-wheeled vehicle comprises a front body portion and a rear body portion.
  • the step floor is provided between said front body portion and said rear body portion.
  • a seat is provided at the rear body portion of said vehicle and a storage box is positioned below said seat.
  • the body cover extends from the front body portion to the rear body portion along a longitudinal direction of the vehicle.
  • the body cover comprises a front cover disposed in said front body portion and a rear cover disposed in said rear body portion.
  • the rear cover comprises a pair of laterally spaced side cover and the under seat cover enclosing said storage box.
  • the under seat cover projects upwardly from the step floor along a vehicle width wise direction.
  • the rear cover disposed in said rear body portion of the vehicle comprises of a left side cover, right side cover and said under seat cover.
  • the air guide structure formed in at least a portion of said under seat cover comprises of at least one surface including an upper surface and a lower surface.
  • the air guide structure further comprises of at least one projecting member extending from said at least one surface thereof.
  • said at least one projecting member is being integrally formed with said lower surface of said at least one surface of the air guide structure.
  • said at least one projecting member is a flange.
  • a cover member is being detachably secured to said air guide structure.
  • the cover member comprises a structure configured to be detachably secured to said air guide structure such that at least 2mm of gap exists therebetween for facilitating an efficient introduction of the outside air into the vehicle body without any deflection.
  • the present invention is directed to the vehicle body cover including said pair of laterally spaced side covers and the under seat cover.
  • the under seat cover comprises the modified design of said air-guide structure for effective intake of outside air into the vehicle body.
  • the heat generated by the engine, in the form of hot air, which cannot escape through customary side vents, can effectively be cooled through the intake of outside air through the air guide structure, as per one embodiment.
  • the present invention relates to the improved air guide assembly including the modified design for the air guide structure and the cover member.
  • said cover member is configured to cover the air guide structure from the rear surface of the under seat cover.
  • the modified design for the cover member includes at least one covering portion and at least one mounting portion being integrally formed with said at least one covering portion.
  • said at least one covering portion of said cover member is contoured in a shape to follow a corresponding contour of at least a portion of said air guide structure. Further, said at least one covering portion of said cover member is at least partially curved to form a raised member on at least a front surface thereof to conform to said contour of said at least a portion of said air guide structure.
  • the cover member when the engine for the vehicle not running properly due to the valve clearance and the tappet noise, the cover member can be detachably secured to the air guide structure in the manner as to create said at least 2 mm of gap between the cover member and the air guide structure, hence reducing the loud tappet noise.
  • an efficient cooling performance for the vehicle is achieved by the introduction of sufficient air required for the cooling of the vehicle and furthermore the tappet noises produced as a result of the valve clearance in the engine is substantially reduced.
  • said at least one projecting member extending from said at least one surface in the vehicle rear direction prevents the visibility of the internal mounting details located to the rear of the under seat cover of the vehicle body cover.
  • the improved air guide assembly including the modified air guide structure and the cover member improves the overall appearance of the vehicle and in addition enhances the cooling capability of the vehicle with the provision of said at least one projecting member for guiding the outside air being introduced into the vehicle body. Further, the assembly of the modified air guide structure and the cover member shields the internal mounting details located to the rear of the under seat cover of the body cover for the vehicle.
  • D frontD and D rearD , and D leftO and D rightD referred to in the ensuing description of the illustrated embodiment refer to front and rear, and left and right directions as seen in a state of being seated on a seat of the two-wheeled vehicle.
  • a longitudinal axis refers to a front to rear axis relative to the vehicle, while a lateral axis refers to a side to side, or left to right axis relative to the vehicle.
  • phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.
  • FIG. 1 shows a side elevation view of the scooter type two-wheeled vehicle (1) (hereinafter DvehicleD) as per one embodiment of the present invention.
  • the vehicle (1) includes a frame (not shown) made up of several tubes welded together supporting the body of said vehicle (1).
  • the vehicle (1) has a steerable front wheel (2) and a driven rear wheel (4) driven by driving force generated by a power unit (11).
  • the front wheel (2) of vehicle (1) is axially supported at a lower end of a front fork (3), and the front fork (3) is pivoted in a steerable manner in a head pipe (not shown) of the vehicle frame.
  • a handle bar (7) is attached to an upper end of the head pipe.
  • a headlight unit (10) is arranged forwardly of the handle bar (7) and is surrounded by a visor (9).
  • the handle bar (7) and the seat (5) are supported at opposing ends of the frame and a generally open area is defined there between known as step floor (15).
  • the seat (5) for a driver and a pillion is placed forward to a fuel tank and rearwardly of the step floor (15).
  • a storage box (12) is provided below the seat (5) for storing useful articles.
  • a side trim member (14) laterally beneath the step floor (15) is provided to cover the lower frame members from being visible.
  • the side trim member (14) is laterally present on both sides of the vehicle (1); however, only one is visible in the side view.
  • a side stand fixed to the left side of the frame supports the vehicle (1) such that the vehicle (1) can incline to the left side without falling.
  • the vehicle (1) comprises the front body portion (F) and the rear body portion (R).
  • the step floor (15) is provided between said front body portion (F) and said rear body portion (R).
  • the seat (5) is provided at the rear body portion (R) of said vehicle (1) and the storage box positioned below said seat (5).
  • the vehicle frame (not shown) is covered by the body cover (22) extending from the front body portion (F) to the rear body portion (R) along a longitudinal direction of the vehicle (1).
  • the body cover (22) comprises the front cover (16) disposed in said front body portion (F) and the rear cover (21) disposed in said rear body portion (R).
  • the rear cover (21) comprises said pair of laterally spaced side covers (6) and the under seat cover (13) enclosing said storage box.
  • said pair of laterally spaced side covers includes a right side cover (not shown) and a left side cover (6).
  • the right side cover (6) is symmetrical to the left side cover (6) and hence not shown.
  • the under seat cover (13) projects upwardly from the step floor (15) along the vehicle widthwise direction.
  • a rear fender (8) is accommodated at the rearmost end of the vehicle (1) to partially cover the rear wheel (4).
  • the front wheel (2) is covered by a lower member (17) of the front cover (16).
  • the lower member (17) has a rearwardly portion inclined rearwardly and curvedly toward the side trim member (14).
  • the power unit (11) is configured to drive, and is swingably supported on the frame at one end and to the rear wheel (4) at the other end.
  • the power unit (11) is integrally formed with a forwardly inclined said internal combustion engine and a transmission system.
  • the rear wheel (4) is connected to a drive shaft at the rear of the power unit (11).
  • Fig.2 is a perspective view of the vehicle (1) illustrating the air guide structure (100) as per the present invention.
  • the rear cover (21) shown in Fig. l
  • the under seat cover (13) comprises of the air guide structure (100) formed in said at least a portion of said under seat cover (13) for discharging heat from said internal combustion engine.
  • the air guide structure (100) comprises of said at least one surface (100a), (100b) (shown in Fig.6) including said upper surface (100a) and the lower surface (100b).
  • Fig.3 is a perspective view of the under seat cover (13) extending upwardly from the step floor (15) and illustrating the air guide structure (100) located therein.
  • the air guide structure (100) is formed in said at least a portion of the under seat cover (13) for guiding the outside air into the vehicle body.
  • Fig.4 is a perspective view of a rear surface (18) of the under seat cover (13) illustrating the air guide structure (100) (shown in Fig.5) with the cover member (101) (shown in Fig.6) as per one embodiment of the present invention.
  • the under seat cover (13) comprises of a front surface (23) and the rear surface (18).
  • the cover member (101) is detachably secured to the air guide structure (100) from the rear surface (18) of the under seat cover (13).
  • the one or more internal mounting details (19), (20), (21) including said paint hooks (19), (20), the self -tapping boss (21) for securing the under seat cover (13) to the vehicle frame are provided to the rear surface (18) of the under seat cover (13).
  • the modified air guide assembly (200) including said air guide structure (100) and the cover member (101) being detachably assembled to said air guide structure (100) prevents the visibility of said one or more internal mounting details (19), (20) and hence improves the vehicle appearance.
  • Fig. 5 shows a perspective exploded view of the air guide structure (100) formed on the under seat cover (13) of the vehicle (1) as per one embodiment of the present invention.
  • the cover member (101) is having a structure configured to be detachably secured to said air guide structure (100).
  • the improved air guide assembly (200) includes the modified air guide structure (100) and the cover member (101).
  • the modified air guide structure (100) comprises of said at least one surface (100a), (100b) (shown in Fig.6).
  • said at least one projecting member (102) extends rearwardly from said at least one surface (100a), (100b) of said air guide structure (100) and hence enhances the cooling efficiency of the vehicle (1) without deflecting the path of the introduced outside air into the vehicle (1) and additionally hides the visibility of the one or more internal mounting details (19), (20), (21) provided to the rear of the under seat cover (13).
  • Fig.5a is a perspective view of the cover member (101) being adapted to be removably secured to said air guide structure (100) from the rear surface (18) of the under seat cover (13), as per one embodiment of the present invention.
  • said cover member (101) includes at least one covering portion (108) and at least one mounting portion (104), (107) being integrally formed with said at least one covering portion (108).
  • said at least one covering portion (108) of said cover member (101) is contoured in a shape to follow a corresponding contour of at least a portion of said air guide structure (100).
  • said at least one covering portion (108) of said cover member (101) is at least partially curved to form a raised member on at least a front surface (FD) thereof to conform to said contour of said at least a portion of said air guide structure (100).
  • at least a portion of a rear surface (RD) of the cover member (101) is concavely curved.
  • said at least one mounting portion (104), (107) of said cover member (101) includes one or more mounting holes (104a), (107a) configured to receive at least one fastener (106) for detachably securing said cover member (101) to said air guide structure (100) through one or more mounting structures (103), (105) such that a gap of at least 2 mm exists between said cover member (101) and the air guide structure (100) for guiding external cooling air into at least a portion of the vehicle (1).
  • said cover member (101) is a lid structure.
  • said at least one cover member (101) is a ventilation grill.
  • Fig.6 is a perspective exploded view of said at least a portion of the under seat cover (13) illustrating said at least one projecting member (102) extending rearwardly from the lower surface (100b) of the air guide structure (100), as per one embodiment of the present invention.
  • said projecting member(102) is integrally formed with said air guide structure (100).
  • the air guide structure (100) formed in said at least portion of said under seat cover (13) comprises of said at least one surface (100a), (100b) including the upper surface (100a) and the lower surface (100b).
  • said air guide structure (100) comprises said at least one projecting member (102) extending from the lower surface (100a) thereof in the vehicle rear direction, thereby preventing the visibility of the one or more internal mounting details (19), (20), (21) including said paint hooks (19), (20) fasteners, the self-tapping boss (21) provided to the rear of the under seat cover (13) and hence guiding the flow of air from the outside into the vehicle body without any deflection.
  • said at least one projecting member (102) extending in continuation to the lower surface (100b) of the air guide structure (100) hides the direct view of said one or more internal mounting details (19), (20), (21) located to the rear of the under seat cover (13).
  • said at least one mounting portion (104), (107) [Shown in Fig.5a] of said cover member (101) is configured for detachably securing said cover member (101) to said air guide structure (100) through said one or more mounting structures (103), (105).
  • said one or more mounting structures (103), (105) includes a pair of mounting members (103) formed on said upper surface (100a) of the air guide structure (100) and at least one mounting boss (105) formed on at least a portion of said under seat cover (18).
  • Fig.7 is a sectional view of said improved air guide assembly (200) including the air guide structure (100) and the cover member (102) located on the under seat cover (13) as per one embodiment of the present invention.
  • the air guide structure (100) formed on the under seat cover (13) comprises of said at least one surface (100a), (100b) (shown in Fig.6) including the upper surface (100a) and the lower surface (100b).
  • the air guide structure (100) includes said at least one projecting member (102) extending rearwardly from said at least one surface (100a), (100b) thereof.
  • the cover member (101) is detachably secured to the air guide structure (100) in the manner such that said at least 2mm of gap exists between the air guide structure (200) and the cover member (101) for facilitating an efficient introduction of the outside air into the vehicle body without any defection and in addition the tappet noise produced due to the valve clearance of the engine is substantially reduced.
  • said at least one covering portion (108) of said cover member (101) is substantially C-shaped in cross section when taken along the vehicle longitudinal direction (AA).
  • the improved air guide assembly comprising of said modified air guide structure and the cover member being arranged on said at least a portion of said under seat cover which facilitates an effective introduction of outside air into the vehicle body, thereby enhancing the vehicle cooling process.
  • said at least one projecting member extends rearwardly in continuation with said at least one surface of the air guide structure, hence said one or more mounting details provided on the rear side of the under seat cover are not visible when seen from outside and therefore improves the vehicle appearance.
  • the provision of the at least one projecting member in said air guide assembly of the vehicle performs the dual function of the engine cooling as well as covering of said one or more internal mounting details provided to the rear side of the under seat cover.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Seats For Vehicles (AREA)

Abstract

La présente invention concerne un véhicule à deux roues (1) comprenant une partie corps avant (F) et une partie corps arrière (R). Un couvercle de corps (22) s'étend à partir de la partie corps avant (F) jusqu'à la partie corps arrière (R) le long d'une direction longitudinale de véhicule (AA), ledit couvercle de corps (22) comprenant un couvercle avant (16) disposé dans ladite partie corps avant (F) et un couvercle arrière (21) disposé dans ladite partie corps arrière (R). Dans la présente invention, une structure de guidage d'air (100) formée dans au moins une partie dudit couvercle arrière (21) comprend un élément saillant (102) s'étendant à partir d'au moins une de ses surfaces (100a), (100b).
PCT/IB2017/055945 2016-09-30 2017-09-28 Structure de guidage d'air pour véhicule à deux roues WO2018060906A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201641033474 2016-09-30
IN201641033474 2016-09-30

Publications (1)

Publication Number Publication Date
WO2018060906A1 true WO2018060906A1 (fr) 2018-04-05

Family

ID=61763342

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2017/055945 WO2018060906A1 (fr) 2016-09-30 2017-09-28 Structure de guidage d'air pour véhicule à deux roues

Country Status (1)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004078572A1 (fr) * 2003-03-06 2004-09-16 Yamaha Hatsudoki Kabushiki Kaisha Motocycle
CN101293544A (zh) * 2007-04-27 2008-10-29 雅马哈发动机株式会社 跨骑式车辆

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004078572A1 (fr) * 2003-03-06 2004-09-16 Yamaha Hatsudoki Kabushiki Kaisha Motocycle
CN101293544A (zh) * 2007-04-27 2008-10-29 雅马哈发动机株式会社 跨骑式车辆

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