Abstract: Provided is a warning device for automobile alternator replacement which warns a driver of the replacement timing of an automobile alternator in advance. A conducting sensor that surrounds a conductor with an insulator is embedded into a brush so that the conducting sensor can be electrically conducted before the brush reaches its wear limit. A push switch is installed between the brush and a brush holder so that the push switch can be turned on before the brush reaches its wear limit. The conducting sensor or the push switch is connected to a warning unit so that the warning unit can be operated when the conducting sensor is electrically conducted or when the push switch is turned on. Thereby, the warning device can warn the driver to replace the alternator before the alternator becomes inoperable due to the wear of the brush.

Abstract: Disclosed is a warning device for automobile starter replacement which warns a driver to replace a starter in advance for a certain period before each brush of an automobile starter is worn down to its wear limit. Among a conducting sensor having a conductor surrounded with an insulator, a push switch in which an elastic body is housed and which is operated by contact between a case and a movable member, and a contact part that is operated by contact depending on an amount of wear of each brush, one is installed on the automobile starter so that the conducting sensor, the push switch, or the contact part is turned on to operate a warning unit connected thereto before the brush reaches its wear limit, thereby making it possible to warn a driver to replace the starter in advance before the starter becomes inoperable due to the wear of the brush.

Abstract: A foldable bed frame includes a pair of generally rectangular shaped sub-frames foldably attached to each other so as to be folded in a collapsed condition and unfolded to an open condition for use as a mattress support. The foldable attachment is such that when the sub-frames are unfolded to the open condition, a generally central transverse support means is located at the interface thereof. A pair of support members is positioned beneath the transverse support means and in generally perpendicular relation thereto. The support members are attached to the sub-frames in supporting engagement with the transverse support means when the sub-frames are unfolded to the open condition to provide support to the pair of sub-frames at the interface thereof. The pair of support members is attached to the sub-frames so as to be drawn away from the transverse support means when the sub-frames are folded to the collapsed condition.

Abstract: A foldable bed frame including first coupling members each having an opening facing outwardly with respect to the frame being in an open state; two sets of longitudinal beams, each formed by two longitudinal bars having two free ends, and two inner ends pivotally connected within one of the openings of the first coupling members. At least two transverse beams, each being formed by two transverse bars having first and second ends, the first ends respectively being pivotally connected together by a second coupling member. A plurality of third coupling members provided proximate to each free end of the longitudinal bars, each third coupling member having an opening facing inwardly with respect to the frame being in the open state, the opening being configured to pivotally connect one of the free ends of the longitudinal bars. A leg pivotally connected respectively proximate the free end of each longitudinal bar.