A device for guiding and directing a metal sheet in a bending machine to form continuously a conical structure, in particular a frustoconical structure, comprises: resting and contrasting arrangement extending along a closed path, and suitable for restingly receiving a longitudinal edge of the metal sheet and contrasting a movement of the edge in a direction that is transverse to a preset advancement trajectory of the metal sheet; a supporting body for the resting and contrasting arrangement, having at least one oblong lateral portion that is suitable for facing the edge and configured for conforming the resting and contrasting arrangement to the longitudinal profile of the edge so as to obtain an extended zone of contact with said edge and impose resting and contrasting pressure distributed along the edge; the resting and contrasting arrangement is movable around the supporting body along the closed path to accompany the edge of the metal sheet by a distributed contact devoid of relative sliding and rolling, so as to impose on the metal sheet the advancement along the desired advancement trajectory to and through the bending machine. The corresponding method is also provided.

An LED light includes a body, a holder connected to the body, and a function extension unit detachably connected to the body. The holder includes a telescopic member stretched or contracted to adjust a length of the holder along an axial direction of the LED light. The present disclosure can solve technical problems that a conventional LED light can't be adapted to different installation environments. The function extension unit is configured to set different function modules to communicate with a power supply of the body according to needs of different customers so as to drive the body to change an output state of the power supply, thereby light emitting units of the body can work in different states. The present disclosure can further provide a smart driving system of an LED light to be customized to control a lighting mode of the body.

A device for guiding and directing a metal sheet in a bending machine to form continuously a conical structure, in particular a frustoconical structure, comprises: resting and contrasting arrangement extending along a closed path, and suitable for restingly receiving a longitudinal edge of the metal sheet and contrasting a movement of the edge in a direction that is transverse to a preset advancement trajectory of the metal sheet; a supporting body for the resting and contrasting arrangement, having at least one oblong lateral portion that is suitable for facing the edge and configured for conforming the resting and contrasting arrangement to the longitudinal profile of the edge so as to obtain an extended zone of contact with said edge and impose resting and contrasting pressure distributed along the edge; the resting and contrasting arrangement is movable around the supporting body along the closed path to accompany the edge of the metal sheet by a distributed contact devoid of relative sliding and rolling, so as to impose on the metal sheet the advancement along the desired advancement trajectory to and through the bending machine. The corresponding method is also provided.

A guide body can be prevented from being disengaged from a track rail even where the track rail is made of a low-rigidity material, thereby securing reliable movement along the track rail. The guide body includes: a large number of rolling elements that roll on a rolling surface formed along a structure, the guide body being movable relative to the structure; an endless circulation path through which the large number of rolling elements circulate; a load opening portion for allowing the large number of rolling elements in the endless circulation path to be held in contact with the rolling surface of the structure; and a guide portion formed on at least one side of the load opening portion so as to project toward the structure side with respect to projecting ends of the large number of rolling elements projecting from the load opening portion toward the structure side.

A seat slide apparatus for a vehicle, the seat slide apparatus includes: a lower rail which is fixed to a vehicle floor; an upper rail which is slidably engaged with the lower rail; and a rolling element circulation unit having rolling elements and interposed between the lower rail and the upper rail in a state where the rolling elements are able to be circulated, in which the lower rail includes a bottom wall portion, sidewall portions, and upper wall portions, the upper rail includes a main body portion, and folded-back portions, the rolling element circulation unit includes a case having an annular accommodating path accommodating the rolling elements, between the lower rail and the upper rail, an upper rolling element circulation unit and a lower rolling element circulation unit are provided to be disposed at two positions spaced apart from each other, and the upper rail includes a pedestal portion.

A seat slide apparatus for a vehicle, the seat slide apparatus includes: a lower rail which is fixed to a vehicle floor; an upper rail which is slidably engaged with the lower rail; and a rolling element circulation unit having rolling elements and interposed between the lower rail and the upper rail in a state where the rolling elements are able to be circulated, in which the lower rail includes a bottom wall portion, sidewall portions, and upper wall portions, the upper rail includes a main body portion, and folded-back portions, the rolling element circulation unit includes a case having an annular accommodating path accommodating the rolling elements, between the lower rail and the upper rail, an upper rolling element circulation unit and a lower rolling element circulation unit are provided to be disposed at two positions spaced apart from each other, and the upper rail includes a pedestal portion.

A bearing assembly can comprise: a base member including at least one base ramp; a carriage member including: a first surface defining a bearing channel, the bearing channel configured to receive a plurality of ball bearings and allow recirculating movement of the ball bearings, the bearing channel having a variable depth, wherein the bearing channel having a variable depth is configured to allow the plurality of ball bearings to extend beyond the first surface at a first portion of the bearing channel and extend below the first surface at a second portion of the bearing channel; a second surface opposing the first surface, the second surface including at least one carriage ramp, the carriage ramp configured to engage the at least one base ramp; and a retaining member configured to cover a least a portion of the first surface and retain the ball bearings in the carriage member.

A linear guide device having a guide carriage with two guide units, each guide unit including two guide modules abutting guide surfaces of a base structure in an operating position of the guide carriage. One of the two guide modules is an adjustable guide module, which is adjustable by means of one of two adjustment units to set a pretension between the guide modules and the guide surfaces. For synchronous actuation of the two adjustment units, a central actuating device is provided which is drivingly coupled to both adjustment units.