초록 ▼

A children's wagon has a molded plastic body including a horizontal floor with surrounding pockets. The wagon also includes front and rear wheels with the former mounted upon a pivoting bolster to which a handle is attached. Molded plastic front, rear and side walls surround the horizontal floor and

A children's wagon has a molded plastic body including a horizontal floor with surrounding pockets. The wagon also includes front and rear wheels with the former mounted upon a pivoting bolster to which a handle is attached. Molded plastic front, rear and side walls surround the horizontal floor and are removably fastened to the body via their bottom edges by tabs and hook projections that engage the wagon body pockets. Horizontal surfaces are formed adjacent to the side edges of the front, rear and side walls. A knob and a cup are formed on each horizontal surface. The knobs of the side walls engage the cups of the front and rear walls while the knobs of the front and rear walls engage the cups of the side walls so that the front, rear and side walls are joined together in a secure but removable fashion.

대표청구항 ▼

A children's wagon has a molded plastic body including a horizontal floor with surrounding pockets. The wagon also includes front and rear wheels with the former mounted upon a pivoting bolster to which a handle is attached. Molded plastic front, rear and side walls surround the horizontal floor and

A children's wagon has a molded plastic body including a horizontal floor with surrounding pockets. The wagon also includes front and rear wheels with the former mounted upon a pivoting bolster to which a handle is attached. Molded plastic front, rear and side walls surround the horizontal floor and are removably fastened to the body via their bottom edges by tabs and hook projections that engage the wagon body pockets. Horizontal surfaces are formed adjacent to the side edges of the front, rear and side walls. A knob and a cup are formed on each horizontal surface. The knobs of the side walls engage the cups of the front and rear walls while the knobs of the front and rear walls engage the cups of the side walls so that the front, rear and side walls are joined together in a secure but removable fashion. yl oxide, 2.0 weight percent antimony trioxide, 16.8 weight percent carbon black, and remaining material to bring the total weight percent to 100 weight percent. Further, each seal block expands when the temperature reaches 300 degrees Celsius and forms a hard, crust-like barrier when exposed to fire. Each of the seal blocks are arcuate in shape such that when joined together to form a seal belt and unjoined ends of the seal belt are configured to be joined together to form a continuous ring. The continuous ring is configured to be disposed about a pipe. ber spaces said belt and said separating member from each other. 7. The device as claimed in claim 2, wherein a said shaft about which said separating member is rotatable and a shaft about which said belt is angularly moved away from said spacing member comprise a single shaft. 8. The device as claimed in claim 7, further comprising a cam connected to said spacing member and driven by said single shaft, wherein said spacing member and said belt are angularly moved away from said separating member in accordance with a rotation of said cam. 9. The device as claimed in claim 8, wherein said cam comprises a pair of cams positioned at both sides of said belt. 10. The device as claimed in claim 8, wherein said cam is formed with a notch at a position where said cam and a unit including said belt rotate in contact with each other and space said belt from said separating member. 11. The device as claimed in claim 8, further comprising a stepping motor for causing said cam to rotate, wherein when said cam stops after spacing said spacing member and said belt from said separating member, said stepping motor stops rotating in an excited state. 12. The device as claimed in claim 8, wherein a nip angle at which said belt and said separating member contact each other is variable in accordance with a position where said cam stops. 13. The device as claimed in claim 7, further comprising: a sheet tray; a feeding member selectively movable into or out of contact with a sheet stack set on said sheet tray; and up-and-down interlocking means for interlocking an up-and-down movement of said feeding member and an angular movement for spacing said belt from said separating member. 14. The device as claimed in claim 7, further comprising: a restricting member mounted on said single shaft and selectively movable into or out of contact with a sheet tray on which a sheet stack is set for causing, when brought into contact with said sheet tray, a leading edge of said sheet stack to abut against said restricting member to thereby prevent said sheet stack from moving to a position downstream of a preselected position on said sheet tray in the direction of sheet feed; and a restriction interlocking member for interlocking a movement of said restricting member, a rotation of said spacing member and an angular movement for spacing said belt from said separating member to each other. 15. The device as claimed in claim 14, further comprising a torque limiter mounted on said single axis for exerting a torque in both of the direction of sheet feed and a direction opposite thereto, wherein said restricting member is moved via said torque limiter. 16. In a sheet conveying device including a sheet feeding device, said sheet conveying device comprising: feeding means for feeding sheets with a belt; a separating member for separating the sheets one by one in contact with said belt; a spacing member adjoining said belt for spacing said separating member and said belt; and a collar support member rotatable around a shaft, said collar support member supporting the spacing member and being driven in conjunction with the belt, wherein said spacing member includes a pair of rotatable members positioned at both sides of the belt in a widthwise direction and when said collar support member rotates around the shaft, the rotatable members also rotate around the shaft such that the spacing member automatically spaces said belt and said separating member from each other in conjunction with rotation of said belt when a single sheet is conveyed from a nip between said belt and said separating member to a preselected position downstream of said nip in a direction of sheet feed. 17. In an image scanning apparatus including a sheet feeding device and a sheet conveying device including said sheet feeding device, said sheet feeding device comprising: feeding means for feeding sheets with a belt; a separating member for separating the sheets one by one in contac t with said belt; a spacing member adjoining said belt for spacing said separating member and said belt; and a collar support member rotatable around a shaft, said collar support member supporting the spacing member and being driven in conjunction with the belt, wherein said spacing member includes a pair of rotatable members positioned at both sides of the belt in a widthwise direction and when said collar support member rotates around the shaft, the rotatable members also rotate around the shaft such that the spacing member automatically spaces said belt and said separating member from each other in conjunction with rotation of said belt when a single sheet is conveyed from a nip between said belt and said separating member to a preselected position downstream of said nip in a direction of sheet feed. 18. An image forming apparatus including a sheet feeding device and a sheet conveying device including said sheet feeding device, said sheet feeding device comprising: feeding means for feeding sheets with a belt; a separating member for separating the sheets one by one in contact with said belt; a spacing member adjoining said belt for spacing said separating member and said belt; and a collar support member rotatable around a shaft, said support member supporting the spacing member and being driven in conjunction with the belt, wherein said spacing member includes a pair of rotatable members positioned at both sides of the belt in a widthwise direction and when said collar support member rotates around the shaft, the rotatable members also rotate around the shaft such that the spacing member automatically spaces said belt and said separating member from each other in conjunction with rotation of said belt when a single sheet is conveyed from a nip between said belt and said separating member to a preselected position downstream of said nip in a direction of sheet feed. 19. A sheet feeding device comprising: feeding means for feeding sheets with a belt; a reverse roller rotatable in a direction opposite to a direction of sheet feed for separating the sheets one by one in contact with said belt; a spacing member adjoining said belt for spacing said reverse roller and said belt; and a preventing member for preventing a sheet conveyed to a nip between said belt and said reverse roller from being conveyed in the direction opposite to the direction of sheet feed. 20. The device as claimed in claim 19, wherein said preventing member is positioned upstream of said belt in the direction of sheet feed, and said preventing member and said belt have centers in the direction of sheet feed coincident on a single line. 21. The device as claimed in claim 19, wherein said preventing member has a dimension smaller than a dimension of said belt in a main scanning direction. 22. The device as claimed in claim 21, wherein said preventing member is angularly movably supported above the sheets such that one end of said preventing member rests on a top of the sheets, and said preventing member is inclined downward from a support position above the sheets toward a contact position on the top of said sheets in the direction of sheet feed. 23. The device as claimed in claim 22, further comprising biasing means for constantly biasing the one end of said preventing member toward said sheet tray. 24. The device as claimed in claim 23, further comprising bias canceling means for canceling a bias of said biasing means acting on said preventing member. 25. The device as claimed in claim 24, wherein said preventing member and said bias canceling means are molded integrally with each other by use of plastics. 26. The device as claimed in claim 19, wherein said preventing member comprises a cylindrical body rotatable only in the direction of sheet feed in contact with the top of the sheets set on said sheet tray. 27. The device as claimed in claim 26, wherein said rotatable body has a surface formed of plastics. 28. The device as claimed i