Movable chair
First Claim
1. A movable chair comprising:
- a chair main body having a seat portion; and
a pair of left and right traveling devices, disposed on the left and right sides of said chair main body, for moving said chair main body while supporting said chair main body,said traveling devices includingtraveling frames disposed along a traveling direction,endless rail portions respectively disposed around said traveling frames,endless tracks respectively wound around said endless rail portions,driving means for driving said endless tracks, andmeans for allowing a sitting person to control said driving means, andsaid endless tracks including,endless driving belts, anda plurality of ground contact feet mounted on said endless driving belts at a predetermined interval, said ground-contact feet being of two types, said two types being one of a plurality of low ground-contact feet and a plurality of a high ground-contact feet, each of said low ground contact feet being shorter than said high ground contact feet.
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Accused Products
Abstract
A movable chair includes a chair main body and a pair of left and right traveling devices. The chair main body has a seat portion. The traveling devices are disposed on left and right sides of the chair main body and are designed to move the chair main body while supporting the chair main body. The traveling devices includes traveling frames disposed along a traveling direction, endless rail portions respectively disposed around the traveling frames, endless tracks respectively wound around the endless rail portions, a driving section for driving the endless tacks, and a control section for allowing a sitting person to control the driving section. The endless tracks includes endless driving belts, and a plurality of ground-contact feet mounted on the endless driving belts and having different shapes.
60 Citations
16 Claims
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1. A movable chair comprising:
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a chair main body having a seat portion; and a pair of left and right traveling devices, disposed on the left and right sides of said chair main body, for moving said chair main body while supporting said chair main body, said traveling devices including traveling frames disposed along a traveling direction, endless rail portions respectively disposed around said traveling frames, endless tracks respectively wound around said endless rail portions, driving means for driving said endless tracks, and means for allowing a sitting person to control said driving means, and said endless tracks including, endless driving belts, and a plurality of ground contact feet mounted on said endless driving belts at a predetermined interval, said ground-contact feet being of two types, said two types being one of a plurality of low ground-contact feet and a plurality of a high ground-contact feet, each of said low ground contact feet being shorter than said high ground contact feet. - View Dependent Claims (2, 3, 4)
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5. A movable chair comprising:
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a chair main body having a seat portion; and a pair of left and right traveling devices, disposed on the left and right sides of said chair main body, for moving said chair main body while supporting said chair main body, said traveling devices including traveling frames disposed along a traveling direction, endless rail portions respectively disposed around said traveling frames, endless tracks respectively wound around said endless rail portions, driving means for driving said endless tracks, and means for allowing a sitting person to control said driving means, and said endless tracks including, endless driving belts, and a plurality of ground contact feet mounted on said endless driving belts and having different shapes, a direction change device wherein said direction change device has a direction change disk disposed below said main chair body to be vertically movable and rotatable and designed to be selectively brought into contact with the ground. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A movable chair comprising:
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a pair of left and right traveling devices, disposed on the left and right sides of the chair main body, for moving said chair while supporting said chair main body, said traveling devices including traveling frames disposed along the traveling direction, endless rail portions respectively disposed around said traveling frames, endless tracks respectively wound around said endless rail portions, driving means for driving said endless tracks, means for allowing a sitting person to control said driving means, and said endless tracks including, endless driving belts, and a plurality of ground contact feet mounted on said endless driving belts and having different shapes; a direction change device, disposed below said main chair body, for changing the traveling direction of said traveling devices; a chair main body having a seat portion; and a first rotating shaft, disposed as a separate member on an upper portion of said chair main body, for coupling said chair main body and said seat portion to each other to allow said chair main body and said seat portion to be relatively rotated, a second rotating shaft, disposed below said chair main body to be vertically movable and selectively brought into contact with the ground, for coupling said chair main body onto said direction change disk to allow said chair main body to be relatively rotated, and an elevating mechanism, disposed between said chair main body and said direction change disk, for vertically moving said disk below said chair main body to selectively switch a traveling mode in which said traveling devices supporting said chair main body is brought into contact with the ground and a direction change mode in which said direction change disk is brought into contact with the ground, said elevating mechanism being designed to shift axes of said first and second rotating shafts from each other in the traveling mode, and cause the axes to coincide with each other in the direction change mode. - View Dependent Claims (13, 14)
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15. A movable chair comprising:
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a pair of left and right traveling devices, disposed on the left and right sides of said chair main body, for moving said chair while supporting said chair main body, said traveling devices including traveling frames disposed along the traveling direction, endless rail portions respectively disposed around said traveling frames, endless tracks respectively wound around said endless tracks, driving means for driving said endless tracks, and means for allowing a sitting person to control said driving means, and said endless tracks including, endless driving belts, a plurality of ground contact feet mounted on said endless driving belts and having different shapes; and a chair main body having a seat portion wherein said chair main body has front and rear leg portions having lower end portions axially supported on said left and right traveling devices and having upper end portions axially supported on said seat portion to be pivotal, and coupling means capable of adjusting an extendible amount and biasing means for applying a biasing force to maintain said front and rear leg portions in a substantially vertical posture are disposed between a coupling shaft, disposed between said front and rear leg portions, and a vertical portion of one of said leg portions. - View Dependent Claims (16)
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Specification