A mechanic's chair with a movable tray includes a support and a seat pad disposed on the support. The tray is disposed below the seat pad and can be pulled to move and engageably fixed in place such that the distance by which the tray is pulled depends on a user's need for accessing the tray for a t
A mechanic's chair with a movable tray includes a support and a seat pad disposed on the support. The tray is disposed below the seat pad and can be pulled to move and engageably fixed in place such that the distance by which the tray is pulled depends on a user's need for accessing the tray for a tool, and the tray is moved and fixed in place efficiently by an engagement mechanism composed of a lever disposed beside the tray and rails disposed on the support.
대표청구항▼
1. A mechanic's chair with a movable tray, comprising: a support having two lateral rods;four wheels disposed at a bottom of the support to render the support movable;a seat pad unit disposed on the support and having a seat pad;two rails disposed at the two lateral rods, respectively, with a groove
1. A mechanic's chair with a movable tray, comprising: a support having two lateral rods;four wheels disposed at a bottom of the support to render the support movable;a seat pad unit disposed on the support and having a seat pad;two rails disposed at the two lateral rods, respectively, with a groove disposed at one of the rails and along an axis of the rail, wherein a plurality of holes is disposed beside the groove, and each said hole is in communication with the groove;a tray penetratingly disposed between the two rails and movable along the two rails;a lever disposed pivotally at a side of the tray and having a body portion, the body portion having two ends extending to form a fastening end and a pulling end, respectively, with the fastening end penetratingly disposed at the groove and engaged with the holes beside the groove, and the pulling end extendingly disposed on a side of the tray; anda spring disposed on a side of the tray, the spring having an end fixed to the tray and another end hooked up to the body portion and positioned proximate to the fastening end, wherein the spring exerts upon the fastening end a tensile force required for the fastening end to restore a position thereof after a displacement such that, under the tensile force exerted by the spring, the fastening end becomes engaged with the holes beside the groove, wherein a supporting wheel is pivotally disposed inward of each said lateral rod to underpin the tray. 2. The mechanic's chair with a movable tray of claim 1, wherein the lever is pivotally disposed on a side of the tray and between the tray and the rails. 3. The mechanic's chair with a movable tray of claim 1, further comprising two rollers disposed on two sides of the tray to roll along the rails, respectively. 4. The mechanic's chair with a movable tray of claim 2, further comprising two rollers disposed on two sides of the tray to roll along the rails, respectively. 5. The mechanic's chair with a movable tray of claim 1, wherein a tray wheel is disposed below the tray. 6. The mechanic's chair with a movable tray of claim 3, wherein a tray wheel is disposed below the tray. 7. A mechanic's chair with a movable tray, comprising: a support having two lateral rods;four wheels disposed at a bottom of the support to render the support movable;a seat pad unit disposed on the support and having a seat pad;two rails disposed at the two lateral rods, respectively, with a groove disposed at each said rail and along an axis thereof, wherein a plurality of holes is disposed beside the groove, and each said hole is in communication with the groove;a tray penetratingly disposed between the two rails and movable along the two rails;a lever having a pulling end with two ends each extended to form a body portion, each said body portion extending to form a fastening end, the two body portions being pivotally disposed on two sides of the tray, respectively, the fastening ends being penetratingly disposed at the grooves of the rails and engaged with the holes, respectively; andtwo springs disposed on two sides of the tray, respectively, each said spring having an end fixed to the tray and another end hooked up to the body portion and positioned proximate to the fastening end, wherein the springs exert upon the fastening ends a tensile force required for the fastening ends to restore positions thereof after a displacement such that, under the tensile force exerted by the springs, the fastening ends become engaged with the holes beside the grooves, wherein a supporting wheel is pivotally disposed inward of each said lateral rod to underpin the tray. 8. The mechanic's chair with a movable tray of claim 7, wherein the lever is pivotally disposed on a side of the tray and between the tray and the rails. 9. The mechanic's chair with a movable tray of claim 7, further comprising two rollers disposed on two sides of the tray to roll along the rails, respectively. 10. The mechanic's chair with a movable tray of claim 8, further comprising two rollers disposed on two sides of the tray to roll along the rails, respectively. 11. The mechanic's chair with a movable tray of claim 7, wherein a wheel is disposed below the tray. 12. The mechanic's chair with a movable tray of claim 9, wherein a wheel is disposed below the tray.
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이 특허에 인용된 특허 (14)
Fries Bernard J. (Jenison MI), Adjustable seat back mechanism.
Pendleton John H. (P.O. Box 888 99893-131-G-Unit Ashland KY 41101) Gabriel James (P.O. Box 888 02858-068-E-Unit Ashland KY 41101), Device convertible into a chair, table, bed or stool.
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