The specification discloses a motor cycle in which a power unit is mounted in a frame on resilient mountings and the rear road wheel is mounted in a fork swinging on the power unit and connected to springing means. There are two mounting means and a lateral locating means between the power unit and the frame, such mountings being at the apices of a triangle lying in a plane perpendicular to the rotary axis of the rear road wheel. The mounting means are resilient and the means together, are such as to allow a greater amplitude of movement in directions radial of said rotary axis than in directions parallel to said rotary axis and the movement of the power unit relative to the frame at each of said means is positively controlled in directions parallel to said axis. The specification also discloses that the mountings are located on parts of the frame which are rigidly interconnected with a link from one of the mountings to the power unit. The frame may be of sheet metal construction.
A motorcycle engine mounting structure having a head tube (23), a main frame pipe (21) extended rearwardly from the head tube, and an engine (60). In order to increase the freedom of design for mounting an engine and to ensure a radiator mounting space, a pair of supporting members (40, 50; 240, 250) are suspended from the front part of the main frame (21), and the engine (60) is supported in the front part through the supporting members.
A motorcycle engine guard assembly for attachment to a motorcycle frame includes a pair of U-shaped roll bar members each having mounting brackets for attachment to the motorcycle frame. A right hand roll bar member and a left hand roll bar member are provided for mounting to the right and left sides of the motorcycle frame, respectively. These members are constructed for attachment solely to the frame using the motorcycle engine mounting holes, and they are shaped to enclose and overlie vulnerable portions of the motorcycle engine.
An engine mount for a saddle-seat vehicle includes an upper engine mount operatively connected to the engine of the vehicle. The upper engine mount operatively connects the engine to the frame of the vehicle. At least one connector is provided for connecting the engine to the upper engine mount. The upper engine mount permits substantially free vertical movement of the engine relative to the frame. The upper engine mount includes an outer sleeve operatively connected to the frame. The upper engine mount further includes an elastic cushion arranged between the connector and the outer sleeve. The upper engine mount may further include an inner sleeve located within the elastic cushion for passage of the connector therethrough. The upper engine mount further includes a plate bracket operatively connected between the outer sleeve and the frame. The plate bracket may include lightening holes therein for decreasing the weight of the plate bracket while increasing flexibility of the plate bracket. The upper engine mount substantially reduces or eliminates the transmission of engine vibration to the seat and the rider of the vehicle.
A loop driven vehicle such as a motor cycle has a pivoted fork which supports the rear wheel mounted on the engine unit, and the engine unit mounted at its rear on the frame of the vehicle by a mounting which permits angular movement of the engine unit about a second axis parallel to the axis of rotation of the rear wheel, and fore and aft movement of the second axis. This movement of the engine unit is accommodated by one or more second mountings which permit the fore and aft and angular movement and may constrain the engine unit against movement in other directions. The mounting at the rear of the engine unit may comprise a pivoted member, or a flexible plate secured between the engine unit and frame.
S system for training motorcycle operators. A conventional motorcycle carries a seat capable of accommodating a student in front of an instructor. The student operates the conventional handlebars and an additional set of handlebars is provided between the student and the instructor to be operated by the instructor. A transmission interconnects the two sets of handlebars so that they will be operated identically. Furthermore, while the conventional controls are available to be operated by the student, a set of additional controls are accessible to the instructor so that the instructor also can control the motorcycle.
