Patent ID: 8393693

Claim:
A return device for a drawer comprising: a positioning member having a track and a positioning concave formed at one side of the track; a pulling member slidably disposed on the positioning member and having a slide slot; an elastic member connected to the positioning member and the pulling member; a slide block having a protrusion to be received in the slide slot of the pulling member and a slide portion to be disposed in the track of the positioning member, and the protrusion being located close to one end of the slide portion; and an actuator including an actuating slot for receiving the protrusion of the slide block and capable of making the protrusion of the slide bock slide in and out of the positioning concave of the track; characterized in that: the positioning concave has a slide surface which defines an obtuse angle with respect to the track, and the obtuse angle is in the range of 235-245 degrees, at one end of the slide portion are formed an indentation and an arch-shaped top portion, the pulling member is formed with an engaging portion, the engaging portion includes a slope formed in a longitudinal direction thereof, so that the top portion is able to move by pivoting against the slope of the engaging portion of the pulling member, the indentation of the slide portion makes room for a protruding corner of the slope of the engaging portion during rotation of the slide portion, so that another end of the slide portion is able to drive the protrusion to move from a slide end to a positioning end of the slide slot.