公开(公告)号：US3819226A

公开(公告)日：1974-06-25

申请号：US29632872

申请日：1972-10-10

Applicant: COLEMAN CO

Inventor： SYKORA H

IPC: B60J1/04 ,  B62J17/04 ,  B62M27/02 ,  B60J1/02

CPC classification number: B62M27/02 ,  B60J1/04 ,  B62J17/04

Abstract: A snowmobile is provided with a windshield attachment assembly which permits the windshield to be releasably snapped into place. The cowl of the snowmobile is provided with a V-shaped groove and a plurality of slots which extend through the groove. A lug retainer or keeper extends away from the lower surface of the cowl below each of the slots, and each lug retainer includes a camming surface extending away from the cowl and a lug retaining surface. The windshield includes a plurality of generally planar lugs which extend downwardly from the bottom edge of the windshield, and each of the lugs is provided with an opening therethrough. The windshield is attached by inserting each of the lugs through one of the slots in the cowl, and as each lug extends through the slot, it is cammed away from the lower surface of the cowl by the lug retainer until the lug retainer passes through the opening in the lug. The lug then snaps back into its original position, and the bottom edge of the opening is positioned below the retaining surface of the lug retainer to prevent withdrawal of the lug from the slot. When the windshield is to be removed, each lug can be successively flexed away from the lug retainer to permit upward movement of the lug past the lug retaining surface. If desired, each lug can be provided with a reduced lateral dimension and adjacent the bottom edge of the windshield to permit the windshield to break away from the cowl under a predetermined impact in the event of a crash. The lugs will fracture preferentially across the reduced lateral portions when a forward force is applied to the windshield.

Abstract translation: 雪地摩托车设置有挡风玻璃附接组件，其允许挡风玻璃可释放地卡扣就位。 雪地车的整流罩设置有V形槽和延伸穿过槽的多个槽。 凸耳保持器或保持器从每个槽下方的整流罩的下表面延伸，并且每个凸耳保持器包括远离整流罩延伸的凸轮表面和凸耳保持表面。 挡风玻璃包括从挡风玻璃的底部边缘向下延伸的多个大致平面的凸耳，并且每个凸耳设置有穿过其的开口。 通过将每个凸耳穿过整流罩中的一个槽中的每个凸耳来连接挡风玻璃，并且当每个凸耳延伸穿过狭槽时，其通过凸耳保持器被凸轮从罩的下表面凸出，直到凸耳保持架穿过 在耳中打开 接线片然后卡扣回到其初始位置，并且开口的底部边缘定位在凸耳保持器的保持表面下方，以防止凸耳从槽中撤出。 当挡风玻璃被去除时，每个凸耳可以连续地弯曲离开凸耳保持器，以允许凸块向上移动通过凸耳保持表面。 如果需要，每个凸耳可以设置有减小的横向尺寸并且邻近挡风玻璃的底部边缘，以允许挡风玻璃在碰撞的情况下在预定冲击下从整流罩脱离。 当向挡风玻璃施加向前的力时，凸耳将优先跨越减小的侧向部分断裂。

公开(公告)号：US3791482A

公开(公告)日：1974-02-12

申请号：US3791482D

申请日：1973-05-14

Applicant: COLEMAN CO

Inventor： SYKORA H

IPC: F01N1/08 ,  F01P1/02 ,  F02B77/13 ,  F01M1/00

CPC classification number: F01P1/02 ,  F01N1/08 ,  F02B77/13

Abstract: The noise emitted by an air cooled internal combustion engine in a vehicle installation is suppressed by an air duct assembly which is light weight and easily removable to permit access to the engine and related components for routine adjustments and servicing. The duct assembly includes relatively rigid air intake and air exhaust ducts, each of which is integrally molded from plastic with sound absorbing qualities. For axial fan cooled engines, the fan and cylinder cooling fins are enclosed by a shroud provided with air intake and exhaust openings. The cowl of the vehicle which encloses the engine is also provided with air intake and exhaust openings. The intake duct extends between the air intake opening of the vehicle cowl and the air intake opening in the engine shroud, and the exhaust duct extends between the exhaust opening of the engine shroud and the exhaust opening in the vehicle cowl. Each duct provides a baffled or tortuous air passage so that noise cannot escape through the duct without being reflected from the walls of the duct, and each duct is removably secured to either the engine shroud or the cowl by spring latches which permit quick removal of the ducts when desired. The duct assembly also supplies combustion air through a baffled path to a carburetor plenum chamber.

Abstract translation: 在车辆安装中由空气冷却的内燃机发出的噪声被一个空气管道组件所抑制，空气管道组件重量轻且易于拆卸，以允许进入发动机和相关部件进行常规调整和维修。 管道组件包括相对刚性的空气入口和排气管道，每个管道均由具有吸音质量的塑料整体模制。 对于轴流风扇冷却发动机，风扇和气缸散热片由带有进气和排气口的护罩封闭。 包围发动机的车辆的整流罩还设有进气和排气口。 进气管道在车辆整流罩的进气口与发动机外罩的进气口之间延伸，排气管道在发动机罩的排气口与车顶罩的排气口之间延伸。 每个管道都提供有折流或曲折的空气通道，使得噪音不能通过管道逃逸而不会从管道的壁反射，并且每个管道可通过弹簧闩锁可拆卸地固定到发动机罩或罩上， 需要时管道。 管道组件还通过挡板路径将燃烧空气提供给化油器增压室。