The present disclosure relates to an ultrasonic imaging apparatus that has a tolerance for easy assembly and reduces shaking and noise by reducing the tolerance after assembly. The ultrasonic imaging apparatus includes a main body, a probe connected to the main body to irradiate and receive ultrasonic waves and to transmit the ultrasonic signals to the main body, a control panel configured to control the main body or the probe, and a moving device configured to connect the control panel and the main body and to move the control panel with respect to the main body in the upward and downward directions, wherein the moving device includes a housing fixed to the main body, a moving member configured to be movable with respect to the housing in the upward and downward directions, and a regulating bearing installed in the housing and configured to assist the upward and downward movement of the moving member by coming into rolling contact with the moving member and to regulate a gap with the moving member.

In a finite linear motion guide unit, a retainer for retaining rollers rolling between guide members is formed into a V-like shape to thereby increase a rated load. A first guide member is formed into a V-like concave form, and a second guide member is formed into a V-like convex form. Needle rollers are retained by the V-shaped retainer and roll on a raceway formed by facing surfaces of the guide members. The V-shaped retainer includes a pair of roller retainer plate portions for retaining the needle rollers, and a retainer connection portion. A retainer straying prevention mechanism is composed of a pinion disposed in a cross-opening, and racks disposed on the guide members and meshing with the pinion.

The guiding apparatus includes a first member having a sliding groove formed along a longitudinal direction; and a plurality of second members which are slidably assembled along the sliding groove so as to hold the first member in between, wherein the first member is formed with a first mounting hole on a bottom surface of the sliding groove, and the second member is formed with a second mounting hole on a surface opposed to the bottom surface, and wherein a stopper member is mounted to each of the first mounting hole and the second mounting hole, each of the stopper member having an insertion part which is to be inserted into each of the first mounting hole and the second mounting hole and is formed to be shorter in a length in an axial direction than a depth of the first mounting hole and the second mounting hole.

A small-sized finite linear motion guide unit is provided in which there is provided a rack-and-pinion arrangement to prevent any discrepancy between retainer plates to make sure of relative sliding movement of guideways. A rack is composed of teeth portions and a pair of connecting bars to fasten the teeth thereon. The connecting bars are different in widthwise length to form asymmetrical shapes. The grooves for a rack made on the guideway includes a middle groove to get the rack to mate with the pinion, and sidewise grooves lying on both sides of the middle groove and having the connecting bars different in widthwise length to make an asymmetric shape.

Gripping or clamping device comprising a housing body and at least one jaw guide which is provided in the housing body and has two lateral walls, including at least one jaw which can be moved in the jaw guide along a movement direction, guide surfaces being provided on the lateral walls and the jaw having sliding surfaces which interact with the guide surfaces to form a sliding guide, characterized in that at least one raceway part and rolling elements are provided in the jaw guide, the jaw and the raceway part each having a raceway for abutting against the rolling elements to form a roller guide, and in that pretensioning means are provided for generating a pretensioning force, the pretensioning force acting on the raceway part such that the rolling elements are pressed against the jaw-side raceways.

The guiding apparatus includes a first member having a sliding groove formed along a longitudinal direction; and a plurality of second members which are slidably assembled along the sliding groove so as to hold the first member in between, wherein the first member is formed with a first mounting hole on a bottom surface of the sliding groove, and the second member is formed with a second mounting hole on a surface opposed to the bottom surface, and wherein a stopper member is mounted to each of the first mounting hole and the second mounting hole, each of the stopper member having an insertion part which is to be inserted into each of the first mounting hole and the second mounting hole and is formed to be shorter in a length in an axial direction than a depth of the first mounting hole and the second mounting hole.

A gripping or clamping device including a housing body and at least one jaw guide which is provided in the housing body and has two lateral walls, including at least one jaw which can be moved in the jaw guide along a movement direction, guide surfaces being provided on the lateral walls and the jaw having sliding surfaces which interact with the guide surfaces to form a sliding guide, wherein at least one raceway part and rolling elements are provided in the jaw guide, the jaw and the raceway part each having a raceway for abutting against the rolling elements to form a roller guide.

A lubricating tube includes an inner surrounding surface that has a non-circular cross-section, angularly spaced-apart inner lubricant-storing recesses, and guide surface portions each of which is interconnected between two adjacent ones of the inner lubricant-storing recesses. The inner lubricant-storing recesses and the guide surface portions constitute the inner surrounding surface and cooperatively define a roller passage hole. The inner lubricant-storing recesses are indented from the guide surface portions toward the outer surrounding surface. A slide rail device having the lubricating tube is also disclosed.

The present invention shows a telescopic rail having at least one inner, middle, and outer rail element, wherein the inner and outer rail elements are each longitudinally displaceably supported at the middle rail element over rolling members that are guided in a rolling member cage. Provision is made in accordance with a first aspect that the rail elements are mechanically force-coupled via a rail synchronization arrangement such that on a longitudinal displacement of the outer rail element with respect to the inner rail element, the middle rail element is longitudinally displaced with respect to both the inner rail element and the outer rail element. Provision is made in accordance with a second aspect that at least one rolling member cage, and preferably both rolling member cages, is/are mechanically force-coupled to at least one of the rail elements via a respective rolling member cage synchronization arrangement such that a longitudinal displacement of the middle rail element with respect to the inner or outer rail elements results in a longitudinal displacement of the corresponding rolling member cage with respect to the middle rail element.

A lubricating tube includes an inner surrounding surface that has a non-circular cross-section, angularly spaced-apart inner lubricant-storing recesses, and guide surface portions each of which is interconnected between two adjacent ones of the inner lubricant-storing recesses. The inner lubricant-storing recesses and the guide surface portions constitute the inner surrounding surface and cooperatively define a roller passage hole. The inner lubricant-storing recesses are indented from the guide surface portions toward the outer surrounding surface. A slide rail device having the lubricating tube is also disclosed.