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A jogging stroller for carrying a baby includes three wheels mounted on a frame that holds a cloth seat and includes frame rails that project upwardly and rearwardly from a single front wheel to a horizontal handlebar member at the rear of the stroller. A pair of handles are attached to the handleba

A jogging stroller for carrying a baby includes three wheels mounted on a frame that holds a cloth seat and includes frame rails that project upwardly and rearwardly from a single front wheel to a horizontal handlebar member at the rear of the stroller. A pair of handles are attached to the handlebar members by a clamp and these include a stem member that extends outwardly from the stroller handlebar and are connected to a perpendicular handle element that can rotate about the stem member and the stem members can be rotated about the axis of the horizontal stroller handlebar and can be slid along the handlebar. The handle elements can be fixed in space in a position desired by the user or can be left loose enough to rotate during use. The handle elements have a coil spring inside a grip member, allowing the handles to flex as the user jogs, thereby permitting more natural motion of the hands and shoulders during jogging.

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A jogging stroller for carrying a baby includes three wheels mounted on a frame that holds a cloth seat and includes frame rails that project upwardly and rearwardly from a single front wheel to a horizontal handlebar member at the rear of the stroller. A pair of handles are attached to the handleba

A jogging stroller for carrying a baby includes three wheels mounted on a frame that holds a cloth seat and includes frame rails that project upwardly and rearwardly from a single front wheel to a horizontal handlebar member at the rear of the stroller. A pair of handles are attached to the handlebar members by a clamp and these include a stem member that extends outwardly from the stroller handlebar and are connected to a perpendicular handle element that can rotate about the stem member and the stem members can be rotated about the axis of the horizontal stroller handlebar and can be slid along the handlebar. The handle elements can be fixed in space in a position desired by the user or can be left loose enough to rotate during use. The handle elements have a coil spring inside a grip member, allowing the handles to flex as the user jogs, thereby permitting more natural motion of the hands and shoulders during jogging. is disclosed. The tray assembly is constructed so that the tray is movable between a utilization position and a storage position while still allowing an occupant of the chair assembly to use the chair assembly in its fullest capacity. A first arm of the tray is connected by a swivel assembly to an extension member. The extension member is coupled with a mounting tube, the extension member may rotate and slide in a telescopic fashion relative to the mounting tube and be removed from the mounting tube. The mounting tube includes a ball knob assembly and is coupled to a support arm of the chair assembly. A second arm of the tray includes a multiple connection assembly which couples with a fastener assembly to affix the tray in the utilization position and couples with the ball knob assembly to affix the tray in the storage position. ow in absolute value, and assuming that a potential of said image carrier is lowered to VLin an exposed portion, that a development potential is |VB-VL|,that a maximum set value of said development potential to be used for development is |VB-VL|max,and that said development potential varies in a range satisfying relations: |VB-VL|≤|VB-VL|max+50V (1) |VB-VL|≥|VB-VL|max-50V (2) |VB-VL|max≤300V (3) then image density varies by a width of 10% of image density corresponding to the maximum set value of the development potential or less. 21. The apparatus as claimed in claim 20, wherein the bias VB,the potential VLand a potential VDof an unexposed portion of said image carrier satisfy a relation: 0D|-|VB|D-VL|<250 V (4) and assuming that a minimum amount X of toner deposition implementing saturation image density on said image carrier is expressed as: X=0.6×toner grain siz