摘要:
A FRP rim for a bicycle, including a radially outer tire-engaging portion and a radially inner spoke-engaging portion. A first sidewall is in a spaced configuration with a second sidewall. The first and second sidewalls extend between the radially outer tire-engaging portion and the radially inner spoke-engaging portion and one or more integral bumper is located on an outermost radial extent or peak portion of the radially outer tire-engaging portion.
摘要:
A wheel assembly for a remote vehicle comprises a wheel structure comprising a plurality of spokes interconnecting a rim and a hub. The spokes comprise at least one slit extending therethrough radially inward from the rim to the hub. The wheel assembly also comprises a flipper structure comprising an arm, a plurality of legs, and an attachment base. The plurality of legs and the attachment base comprise a four-bar linkage. The wheel assembly further comprises an insert comprising a bore with a flat surface that tapers outward from a top portion of the insert to a bottom portion of the insert. The insert may be configured to couple the flipper structure to the wheel structure via an axle on the remote vehicle and prevent backlash between the axle and the flipper structure. The flipper structure may be configured to transmit axial forces to the wheel structure. The wheel structure may be configured to absorb radial and axial forces.
摘要:
A method of making a plastic wheel (105) having a plurality of spokes (155) includes the step of injecting melted plastic material into a mold, wherein the melted plastic material is injected into the mold in regions corresponding to every spoke of the wheel to be formed. Molding equipment is also provided to carry out the method.
摘要:
A frictional drive device comprises a pair of drive disks (48) each rotatably supported by a frame (2, 42) around a central axial line (A) in a mutually opposing relationship, and a pair of actuators (64) supported by the frame for individually rotatively actuating the drive disks and coaxially disposed with respect to the corresponding drive disks, a plurality of drive rollers (56) arranged along an outer periphery of each drive disk and each having a rotational center line so as to be rotatable along a plane which is neither parallel nor perpendicular to the central axial line, and an annular main wheel (85) disposed approximately coaxially with respect to the central axial line and engaged by the drive rollers of the drive disks, the main wheel comprising an annular member (86) and a plurality of driven rollers (92) supported along the annular member so as to be rotatable around a tangential line of the annular member. A speed reduction unit (72, 100) may be interposed between each actuator and the corresponding drive disk all in a coaxial relationship.
摘要:
A handtruck or trolley (90) comprising: a handtruck frame (91) including a frame base (98) extending to an outward handle portion (97) of the handtruck frame, the handtruck frame generally lying in a first plane and having a front and a rear; a load support (95) mounted to the front of the handtruck frame and generally lying in a second plane inclined relative to the first plane; and a handtruck wheel assembly (60,80) mounted to the frame base, the handtruck wheel assembly comprising at least two sets of wheels (65a,60b,82a,82b), each set having a fixed main axis (6ba,106b) of rotation parallel to the first plane and capable of travel in a direction normal to the main axes, wherein the wheel or wheels of at least one of the sets of wheels is or are multidirectional and capable of travel in a lateral direction or in an angular direction having a vector component parallel to the main axes.
摘要:
An omnidirectionally moving wheel includes multiple rotating bodies and a wheel, wherein each rotating body has a flexibility to be able to bend a rotational axis, is bent to encircle an outer circumference of the wheel in a ring-like shape, and is compressed in a direction of the rotational axis of each rotating body to be disposed on the wheel in a manner to allow rotation centered around each rotating body's secured rotational axis extending along a plane perpendicular to the rotational axis of the wheel.
摘要:
A multiple directional wheel includes a frame having a central hub rotatable about a main axis, a plurality of roller supports radially spaced from the central hub, and a plurality of rollers evenly spaced around the circumference of the wheel and rotatably mounted on the roller supports. The rollers are preferably rotatable about a corresponding plurality of roller axes aligned in the plane of the wheel and transverse to the main axis. Preferably, the frame is integrally formed in a first molding process and the rollers are formed in place on the wheel about the roller supports in a separate process. In another embodiment there is disclosed a multiple directional wheel including a pair of opposed, separately integrally-formed first and second frames.
摘要:
The vehicle wheel includes an outer rim hoop with means for holding a tire, a plurality of spoke portions, and a central hub assembly. The central hub assembly includes an axle assembly and a hub shell that is rotatable about the axle. The hub shell includes at least two axially spaced outer flanges for attachment with the spokes. The spokes are connected at their outer ends to the rim hoop and at their inner ends to their respective outer flange. Firm attachment between the spoke and the outer flange is achieved by engaging of a portion of the spoke with a cavity formed within at least one of the rim and the outer flange. Also disclosed are attachment arrangements that include an intermediate connection member to facilitate attachment between the spoke and the cavity.
摘要:
A wheel (1) with an integrally formed wheel frame including a central hub (2) rotatable about a main axis, a plurality of first supports in a first plane transverse to the main axis and radially spaced from the central hub (2) to form a first discontinuous rim with a first series of rollers (4) regularly spaced around the first rim, a plurality of second supports radially spaced from the hub to form a second discontinuous rim with a second series of rollers (5) regularly spaced around the second rim, each rollers having a main body wherein the lateral central cross-sectional diameter is greater then the diameter of the end portions, each roller being rotatable about an axis transverse to the main axis and when viewed from a side elevation, there being substantial overlap of each of the first series of rollers (4) with each diagonally adjacent roller of the second series of rollers (5).