초록 ▼

A mobile work stand includes a base of a size and shape enabling the base to be positioned between the user's thigh and a seating surface and a top having a flat surface. A connector post extends between the top and base and a bracket disposed on the base is provided for removably attaching a connec

A mobile work stand includes a base of a size and shape enabling the base to be positioned between the user's thigh and a seating surface and a top having a flat surface. A connector post extends between the top and base and a bracket disposed on the base is provided for removably attaching a connector post and enabling the connector post to be moved between the position extending upwardly from the base in a position generally parallel with the base. A coupling is provided and disposed between the top and connector post for enabling the top to swivel about the connector post.

대표청구항 ▼

A mobile work stand includes a base of a size and shape enabling the base to be positioned between the user's thigh and a seating surface and a top having a flat surface. A connector post extends between the top and base and a bracket disposed on the base is provided for removably attaching a connec

A mobile work stand includes a base of a size and shape enabling the base to be positioned between the user's thigh and a seating surface and a top having a flat surface. A connector post extends between the top and base and a bracket disposed on the base is provided for removably attaching a connector post and enabling the connector post to be moved between the position extending upwardly from the base in a position generally parallel with the base. A coupling is provided and disposed between the top and connector post for enabling the top to swivel about the connector post. said second tumbler member from hindering rotation of said one of said locking plates relative to said inner shell, and so as to retract said first tumbler member into said first tumbler hole such that said first tumbler member ceases to hinder rotation of said inner shell relative to said lock casing; and said inner shell of said lock core having an inner surface which is formed with a circumferential groove that extends circumferentially along a curved line on said inner surface of said inner shell, said third tumbler hole in said one of said locking plates being provided with a mounting sleeve through which said third tumbler member extends, said tumbler unit further including a second biasing spring received in said mounting sleeve and disposed around said third tumbler member for biasing said third tumbler member to move outwardly, said third tumbler member moving outwardly and extending into said circumferential groove, due to biasing action of said second biasing spring, for disengaging from said key when said key is inserted into said key hole to align said tumbler recess with said tumbler unit and when said key is rotated for moving said lock core to the unlocking position. 2. A lock apparatus comprising: a lock body formed with a lock core chamber, a lock core openin