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An adjustable chair-armrest assembly includes an chair-armrest assembly includes an elongated positioning plate attached to a chair seat, an elongated coupling seat mounted pivotally on the positioning plate and rotatable about a vertical axis, and an elongated tilting seat mounted pivotally on the

An adjustable chair-armrest assembly includes an chair-armrest assembly includes an elongated positioning plate attached to a chair seat, an elongated coupling seat mounted pivotally on the positioning plate and rotatable about a vertical axis, and an elongated tilting seat mounted pivotally on the coupling seat and rotatable about a horizontal axis. An armrest member is mounted movably on the tilting seat and can be moved along the length of the tilting seat. An inclination adjusting device includes a slot element which is secured to the rear end portion of the coupling seat and which has several horizontal slots extending in a direction transverse to the coupling seat, and an engagement having an upper end portion pivoted to the rear end portion of the coupling seat, and a lower end with a projection projecting therefrom into a selected one of the slots of the slot element. A spring biases the projection to engage the selected one of the slots. A pusher member abuts on the engagement member so as to push the projection of the engagement member to engage the selected one of the slots and can be operated to remove from the engagement member so as to permit the front end of the armrest member to be turned upward and downward.

대표청구항 ▼

An adjustable chair-armrest assembly comprising: an elongated coupling seat adapted to be attached to a chair seat and having a front end portion and a rear end portion; an elongated tilting seat mounted pivotally on said coupling seat and rotatable about a horizontal axis, said tilting seat having

An adjustable chair-armrest assembly comprising: an elongated coupling seat adapted to be attached to a chair seat and having a front end portion and a rear end portion; an elongated tilting seat mounted pivotally on said coupling seat and rotatable about a horizontal axis, said tilting seat having a front end portion and a rear end portion; an elongated armrest member mounted movably over said tilting seat and movable along the length of said tilting seat, in such a manner that said armrest member is in frictional contact with said tilting seat, said armrest member including a wrist receiving element attached to the front end portion of said tilting seat; and an inclination adjusting device including: a slot element which is fastened to the rear end portion of said coupling seat and which has a rearward surface formed with several horizontal slots extending in a direction transverse to said coupling seat; an engagement member having an upper end portion pivoted to the rear end portion of said tilting seat, and a lower end portion provided with a projection protruding therefrom to engage a selected one of said slots in said slot element so as to determine an inclination angle of said armrest member relative to said coupling seat, a spring biasing said projection of said engagement member to abut against said rearward surface of said slot element so as to engage said projection with the selected one of said slots; and a pusher member mounted operatively on the rear end portion of said tilting seat so as to push said projection of said engagement member toward said rearward surface of said slot element, thereby engaging said projection within the selected one of said slots of said slot element, said pusher member being capable of being operated so that said projection can be moved forcibly from the selected one of said slots into another one of said slots when a force is applied to said armrest member in order to turn said wrist receiving element upward and downward.