Abstract: A inverted spline rail system is provided. The inverted spline rail system includes a drive motor that rotates a drive screw. The drive screw has a associated nut body. The nut body includes a attachment portion that a user can attach a device that requires linear motion control. Furthermore, the nut body is located inside of a cylindrical body that encases the drive screw. The nut body has guide teeth that mate with an internally splined guide rail of the cylindrical body that contains both the nut and the drive screw. The reciprocating nature of the guide teeth of the nut and the internally splined guide rail of the cylindrical body translate the rotational motion of the drive screw into linear motion of the nut body. The inverted spline rail system is protected from its operating environment by a seal.

Abstract: The invention relates to a linear actuator device comprising a shaft (1) which can be displaced with respect to a casing (3), where said shaft (1) can be located in a first position in which it is actuated by elastic means (4), being maintained immobile by contact with a support element (5) which conveys its load to an intermediate element (6) which in turn conveys its load to an activating element (7); the shaft (1) being able to be located in a second position, in which the activating element (7) is rotated with respect to its position in the first position, such that said intermediate element (6) is housed in a housing (8) which the activating element (7) has, which allows displacing the support element (5) such that the shaft (1) is not in contact with said support element (5).

Abstract: For achievement of a reduction in size, a slider unit comprises a mounting base 1, a rail 2 fixed to a mounting face 1a of the mounting base 1, a slide table 3 moving along the rail, position detection means for detecting the position of the slide table 3, and a driving system for moving the slide table 3. The mounting face 1a of the mounting base 1 has a mounting recess 14 formed therein. A sensor board 16 on which a Hall element 16a is mounted is installed in the mounting recess 14. The slide table 3 has a permanent magnet 19 attached to the face thereof facing the mounting face 1a. The permanent magnet 19 and the Hall elements 16a form the position detection means.

Abstract: A linear motion device has a first assembly and a second assembly which is linearly movable relative to the first assembly; a row of rolling elements that may circulate endlessly is located between the first and second assemblies, the first assembly including a rotatable threaded spindle that extends parallel to the longitudinal direction, and that is engaged in a screw-type manner with a threaded nut, the threaded nut being a component of the second assembly; the first assembly also includes an electric motor that is connected to the threaded spindle in a rotationally driving manner, and the rotational axis of which extends parallel to the threaded spindle; the first assembly includes a single-pieced, first body.

Abstract: A feed drive mechanism and a connecting assembly thereof are described. The connecting assembly includes a main body and an outer sleeve. The main body has a connecting plate and an inner sleeve connected to a side surface of the connecting plate. Two opposite side surfaces of the connecting plate are respectively fixed on a screw nut seat and a lead screw nut of the feed drive mechanism, and a channel surrounds an outer side surface of the inner sleeve. The outer sleeve is sleeved on the outer side surface of the inner sleeve, enables the channel to be formed into a sealed space, and has an inlet and an outlet respectively communicating with the channel, thereby injecting a cooling medium into the channel.

Abstract: An actuator has a frame and a slider body which are both made of extruded shapes of light-metal alloy. A first rail member is fastened to the frame by means of a simple construction. An upper sealing member is placed between the frame and the slider body. With the actuator constructed as stated earlier, the frame is an elongated extrusion of U-shape in transverse section whose side walls have first recesses of dovetail configuration to fit over first rail members and flanges. A slider has therein the slider body having second recesses of rectangular shape to fit over second rail members. There is further provided a driving unit to force the slider with respect to the frame. The first rail members each have the wedged configuration including tapered contours and dents, while the second rail members each have the rectangular shape.

Abstract: Apparatus for propping a device, comprising a platform, a bracket, a carriage and a backstay. The backstay is rotatable relative to the carriage and to the device. The carriage can be moved in a first direction, which can causes a device to move between a stowed position and a deployed position. Apparatus comprising a rotatable assembly and a device movable between stowed and deployed positions, a center of rotation of the device in the deployed position being at or displaced only substantially vertically from a center of gravity of the rotatable assembly. Apparatus comprising a platform mounting portion, a platform structure rotatably mounted thereon, a duct extending through the platform mounting portion and into a space within the platform structure, whereby fluid can be passed through the duct and into the enclosed space while the platform structure is rotating relative to the mounting portion. Methods of propping a device.

Abstract: A linear motion screw assembly is provided herein which comprises (a) at least a first end support, (b) a screw shaft rotatably mounted to the first end support and defining a longitudinal direction, (c) a linear guide means mounted to the first end support and oriented parallel to the screw shaft, (d) a follower assembly mounted to the screw shaft and, associated therewith, an anti-rotation means in translatable contact with the guide means and movable in a longitudinal direction along the guide means, and (e) a cartridge non-rotatably mounted within said follower assembly, said cartridge including a guide nut having an axial bore through which the screw shaft is rotatably disposed.

Abstract: A linear slide is provided. The linear slide includes a guide rail, a carriage arrangement and a drive mechanism. The carriage arrangement includes a sidecar or nut arrangement for engagement with a screw of the drive mechanism. The nut arrangement is laterally offset from a carriage of the carriage arrangement.

Abstract: A driving device having a housing tube connected to a stationary base part or a movable structural component part a protective tube connected to the other respective part a spindle drive which has a threaded spindle and a spindle nut arranged on the threaded spindle by which the housing tube and protective tube are movable axially relative to one another, and a rotary drive that drives the spindle drive via a clutch, a rotationally rigid interconnection thereof can be canceled when a determined torque is exceeded. A magnetic ring having a plurality of north and south poles is rotationally arranged near a stationary sensor element. The magnetic ring is arranged at the clutch that is connected to the threaded spindle, fixed with respect to rotation relative to it.

Abstract: An actuator has a hollow track rail 6 having a slit 8 extending in an axial direction thereof, a movable block 7 disposed inside the track rail 6 to be movable along the track rail, and a ball screw mechanism for moving the movable block 7 along the axial direction of the track rail 6. The track rail has, in a section perpendicular to the axial direction of the track rail, a guide portion 9 for guiding movement of the movable member 7 and an extension 11 extending from the guide portion 9 so as to cover the movable member, and a width W1 of the slit 8 of the track rail formed between the opposed extensions 11 is narrower than a width W2 of the movable member. Accordingly, the actuator can provide a high rigidity in spite of compact outer dimension.

Abstract: A spindle drive for longitudinally adjusting a motor vehicle seat is provided. The spindle drive comprising an adjustment rail that can be longitudinally adjusted relative to a body mounted rail and an adjusting mechanism that includes a driving worm connected to a driving device as well as a spindle nut, the external teeth of which mesh with the external teeth of the driving worm, and the internal teeth of which mesh with the external thread of a spindle. The spindle nut is formed by a hybrid spindle nut that has a functional part, which is located in the force flux between the driving worm and the spindle, and at least one strengthening part, deflecting crash forces from the adjustment rail into the spindle.

Abstract: A small slider unit having a size effectively reduced in the longitudinal direction is equipped with a rail 22; a slide table 23 moving on the rail 22; a screw shaft 26 coupled to the slide table 23 and situated parallel to the rail 22; a motor M for rotating the screw shaft 26; a coupling member 31 for providing the coupling between a rotating shaft 32 of the motor M and the screw shaft 26; and a bearing 29 supporting the screw shaft 26. The screw shaft 26 is rotated by driving the motor M, whereupon the rotation of the screw shaft 26 moves the slide table 23 in the axis direction of the rail 22. The screw shaft 26 has a holding portion 27a, and the bearing 29 is held between the holding portion 27a and the coupling member 31.

Abstract: A spindle drive has a spindle nut (1) and a threaded spindle (2) mounted in a rotationally fixed and axially displaceable manner on a reference body (3) by way of a linear guide, wherein the axis (9) of the threaded spindle (2) is arranged parallel to the longitudinal direction of the linear guide, and wherein the linear guide has a groove (4) and a guide element (5) engaging in the groove and comprises an elastic region (5b, 5b?, 5b?), the width of which perpendicular to the longitudinal direction of the linear guide is greater than the maximum groove width in the region used for the linear guide.

Abstract: A support assembly for deployment and retraction of an aero surface from an aircraft is disclosed. The assembly comprises a guide track, a primary support arm having one end coupled to a carriage mounted on the track such that the primary support arm is rotatable relative to the carriage about multiple axes, and a control arm having one end coupled to the primary support arm and a second end pivotably attachable to a fixed support forming part of the structure of the aircraft. The assembly being configured such that, when the carriage is driven along the guide track, the control arm causes the primary support arm to pivot about said multiple axes to deploy and/or retract an aero surface pivotally attached to an opposite end of the primary support member along an arcuate path.

Abstract: Clamping means which may be used with soldering pliers, having a first element (18) and a second element (20) relatively displaceable by the action of a screw (10) that can be rotated about an axis (XX) by the action of a motor (M); a nut (12) cooperating with the screw (10) and which can be driven in the direction of the screw axis (XX), the screw being coupled to the first element (18); first guiding means (34L) defining linear guidance parallel to the axis (XX) of the screw to prevent rotation of the nut (12) in a first phase of displacement of the nut; and second helicoidal guiding means (34H) extending with the axis (XX) of the screw (12) and which has an thread inverted in relation to the screw thread to allow the nut (12) to rotate in the same direction of rotation as the screw (10) in a second nut displacement phase; in addition to a compensation system (46) arranged between the first element (18) and a mobile support (14) coupled to the nut (12) in order to reinitialize the position of the first elem

Abstract: Adapter assemblies are provided for selectively interconnecting a surgical end effector that is configured to perform at least a pair of functions and a surgical device that is configured to actuate the end effector, wherein the end effector includes a first axially translatable drive member and a second axially translatable drive member, and wherein the surgical device includes a first rotatable drive shaft and a second rotatable drive shaft.

Abstract: A linear actuator for a piece of furniture, namely a bed or chair comprising a housing (8) of plastic consisting of two parts (8a, 8b) with a joining edge (8c) in the longitudinal direction of the housing. In both ends of the housing there is a transverse through aperture (10) for receiving a pivot shaft in the piece of furniture, and with an openable cover (9) for mounting the actuator on the shafts. In connection with the apertures there is a drive comprising a reversible motor, which over a transmission drives a spindle, and where a spindle nut fixed against rotation and constructed as a sliding element is mounted on said spindle. The pivot shaft in the piece of furniture has an arm which rests loosely against the end of the spindle nut when the actuator is mounted on the piece of furniture so that the pivot shaft is rotated for raising of a section in the piece of furniture in one direction of movement of the spindle and for lowering the section under its weight in the other direction.

Abstract: A hollow yoke is inserted into a bore section of a frame. The yoke is connected to a slider via a slit in the frame. A timing belt is inserted into a belt hole of the yoke. Further, a pair of guide members are provided on both side surfaces of the yoke, which engage with guide grooves of the frame. The yoke is displaced along the guide grooves by the timing belt, under a driving action of a driving section. Accordingly, the slider is displaced in the axial direction along the frame.

Abstract: A sliding device is provided in which a ball-nut screw system is disposed in a relation lying out of a guide rail and extending by the side of and in parallel juxtaposition with the guide rail, thereby making it possible to reduce the sliding device in the overall height. The ball-nut lead screw system may be easily mounted and/or demounted from the sliding device and easily made varied depending on design considerations. The sliding device includes the lead screw carried for rotation by bracket bearings in a way lying out of a guide rail in a way extending by the side of and in parallel juxtaposition with the guide rail, and a ball nut mounted to a slide table. The lead screw is actuated by a motor carried in a bracket bearing.

Abstract: Disclosed are a robot joint driving apparatus and a robot having the same, capable of minimizing a load applied to a drive motor by rotating a ball nut part such that a ball screw part performs linear movement in a power transmission structure using a wire and the ball screw apparatus. The robot joint driving apparatus includes a reversible drive motor, a ball nut part rotated according to operation of the drive motor, a ball screw part performing linear movement according to rotation of the ball nut part, a wire connected to the ball screw part from both sides of the ball screw part, an idle pulley rotatably installed at one side of the wire, and a joint part rotatably installed at an opposite side of the wire.

Abstract: The invention relates to a drive for a coffee brewing device that includes a first gearwheel having an internal thread that is pivot-mounted to an external thread of a guide cylinder so that the first gearwheel can be moved along a cylinder axis of the guide cylinder in response to a rotation, a second gearwheel for driving the first gearwheel along the cylinder axis, a housing, and a brewing piston coupled to the housing so that the brewing piston and the first gearwheel can be moved along the cylinder axis. A linear guide running parallel to the cylinder axis is also provided for guiding the housing such that a movement of the housing opposite to the linear guide in a radial direction to the cylinder axis is prevented. An axis of rotation of the second gearwheel is arranged in a provided distance relative to the linear guide.

Abstract: An actuator has a frame and a slider body which are both made of extruded shapes of light-metal alloy. A first rail member is fastened to the frame by means of a simple construction. An upper sealing member is placed between the frame and the slider body. With the actuator constructed as stated earlier, the frame is an elongated extrusion of U-shape in transverse section whose side walls have first recesses of dovetail configuration to fit over first rail members and flanges. A slider has therein the slider body having second recesses of rectangular shape to fit over second rail members. There is further provided a driving unit to force the slider with respect to the frame. The first rail members each have the wedged configuration including tapered contours and dents, while the second rail members each have the rectangular shape.

Abstract: A slide mechanism of a linear transmission apparatus includes an actuating mechanism, a guide screw and a slide mechanism. The slide mechanism includes a fixing base, a primary guide rail, left and right secondary guide rails and a slide element. The fixing base has a through hole for passing the guide screw. The primary guide rail and each secondary guide rail are engaged to the guide screw and connected to the fixing base. The primary guide rail has a top panel and two side panels. Each secondary guide rail has an extended panel protruded from a side proximate to the primary guide rail. The top of each extended panel is not lower than the bottom of the side panel, and the slide element is sheathed onto the exterior of the guide rail, and a nut secured to the guide screw is formed in each guide rail.

Abstract: A grease supply mechanism is provided inside a vacuum transfer chamber. The grease supply mechanism includes: a grease storage part in a bottomed cylindrical shape storing grease therein; and a movable cover covering an opening of the grease storage part and sliding while being in contact with an inner wall of the grease storage part. When the cover is pressed and moved, the grease is supplied into a grease inlet via a grease supply port.

Abstract: A linear unit, having a drive unit which is mounted in a guide tube (1) and supports a guide carriage (5) for holding a workpiece, a tool or the like, composed of a threaded spindle (2) and a spindle nut (4), wherein the guide carriage (5) or the spindle nut (4) is guided in a longitudinal groove (3) of the guide tube (1) in a rotationally fixed and axially movable manner, is embodied in such a way that the guide tube (1) is composed of a sheet metal strip which is curved around an imaginary longitudinal axis.

Abstract: A linear guide device has a guide rail system with at least one guide rail, a guide carriage guided on the guide rail system in a guidance direction and including a base unit and legs which partially enclose the guide rail system, the guide carriage being provided with at least one preload-adjustment device via which a preload of the legs of guide carriage against the guide rail system is adjustable, the preload-adjustment device including at least one rod having one end hingedly mounted on one of the legs of the guide carriage and the other end displaceable in a displacement direction, and a displacement device for displacing the other end of the preload adjustment, device in the displacement direction.

Abstract: An auto-aligning linear motion apparatus is provided. The apparatus includes a leadscrew. The apparatus also includes a nut arrangement configured to surround the leadscrew, wherein the nut arrangement includes at least a nut, a nut bracket, and a floating collar. A shoulder screw is inserted through a nut bracket slot of the nut bracket and a nut slot of the nut to rest at least partially within the floating collar. One dimension of the nut bracket slot is larger than a dimension through a cross-section area of the shoulder screw to enable the shoulder screw to move within the nut bracket slot to adjust the nut arrangement as the leadscrew is rotated to maintain a concentric relationship between the nut arrangement and the leadscrew.

Abstract: An adjusting device for seating and reclining furniture includes a basis case, a screw rotatable axis, a guide area, an adjuster and a side cover. A notching is set at the upper end face of the guide area. A slider inside of the adjuster is combined with the upper wall of a perforating in the guide area by a connection portion. The width of the connection portion is set corresponding to the width of the notching of the guide area, and a perforated panel is set at the center of the connection portion to make a fender board impenetrate. The fender board may shield the notching of the guide area. A chamber is set in the upper end face of the adjuster corresponding to the position of the perforated panel from top to bottom. The chamber may hold a felt containing lubricating oil. There is a bearing chamber in the inner wall of the side cover. The bearing chamber may make the bearings embed in, and a bearing are pivoted and combined with the end of the screw rotatable axis.

Abstract: A linear actuator is provided comprising a housing, a rectangular elongate shaft operably coupled to the housing, and a scraper assembly. The shaft has a hardened bearing surface in sliding engagement with a hardened bearing surface of the housing, thus providing a hard-on-hard bearing between the shaft and housing, wherein the shaft is prevented from rotating with respect to the housing. The scraper assembly comprises first and second resilient members positioned within a recess of the housing, wherein one or more scraper blades are disposed between the first and second resilient members. A retaining member coupled to the housing generally compresses the first and second resilient members within the recess, therein biasing a scraping edge of the one or more scraper blades against the shaft bearing surface, wherein the retaining member, one or more scraper blades, and the first resilient member are operable to clear debris from elongate shaft.

Abstract: Actuator of the type where a driving rod (11) is extended by a nut (10) on a driven spindle. A manually operated emergency lowering device (14) for the driving rod (11) is mounted between the driving rod (11) and a mounting bracket (16) at the end thereof. The emergency lowering device (14) comprises a first cylindrical part (15) connected with the mounting bracket (16) and a second cylindrical part (17) connected with the driving rod (11). The two cylindrical parts are coupled together by a screw spring (21). The spring is released by an operating grip (19) constructed as a bushing in which the one end (22) of the spring (21) is secured. The other end (23) of the spring (21) is secured in the cylindrical part (17) connected with the driving rod (11). Rotation of the bushing causes the spring (21) to be released, whereby the driving rod (11) may be screwed back by the manually applied torque.

Abstract: A linear guide/feed module has a tubular boom movable along a movement axis, a housing encompassing the tubular boom so that the boom is travelable out of and into the housing along the movement axis, a drive unit for driving the boom to move in relation to the housing, at least two recirculating rolling element rows supporting the boom in the housing for its movement in relation to the housing along the movement axis and spaced apart from each other in a circumference direction around the movement axis, with each of the recirculating rolling element rows having a force-loaded rolling element carrying segment extending essentially in a direction of the movement axis and an essentially unloaded rolling element return segment, and a guide body encompassing the boom at least in segments in the circumferential direction, provided in the housing and having rolling element passages of the rolling element return segments formed into it as well as raceways on a housing side of the rolling element carrying segments of

Abstract: An electro-mechanical actuator (21) includes a reverse transfer system ball-screw (20). The actuator broadly includes a frame (22), a nut (43) mounted on the frame, at least one magnet (59) mounted on the nut, at least one coil (55) mounted on the frame, the coil being adapted to be selectively supplied with current to cause the nut to rotate within the frame, a rotary feedback device (80), and a screw (44) arranged within the nut for rotational and axial movement relative thereto. The screw and nut both have cooperative ball recesses (72, 74) that define a ball path in which a plurality of balls (73) are mounted. The ball recirculation path is provided in the screw. A rod (23) is connected to the screw for movement therewith. Relative rotation between the nut and screw will cause the screw and rod to move axially relative to the frame.

Abstract: A friction applying apparatus and a linear guide apparatus having the same, according to the present invention can uniformly contact allover contacting faces of sliding members to the contacted members so as to reduce abrasion in the sliding members and the contacted members, and may maintain appropriate frictional force and precision. In the friction applying apparatus forcing the sliding members moving along guide rails for generating friction, the sliding member is made of a material having elastic modulus being 5000 MPa or less and Vickers hardness being 400 or more.

Abstract: In a linear guide unit that has an elongated guide housing which limits a guide hollow space with a longitudinal opening, a wagon arrangement which is displaceably guided in the guide hollow space on guide rails, a connection part for connecting the wagon arrangement to an object to be guided, a cover element arranged between movement tracks of the connection part and covering the longitudinal opening, in accordance with the present invention forwardly of and/or rearwardly of the wagon arrangement, at least one support unit is arranged displaceably in direction of the longitudinal axis for supporting the cover element relative to the guide housing; also additionally or alternatively the support unit can support the cover element relative to the wagon arrangement.

Abstract: The present invention relates to a new guide actuator with high radial direction load capability, which has the purpose of providing a directional force bearing way to common loading method to make the actuator can bear load and transmit with higher accuracy. On design, the present invention has grooves bearing load at the center of the bottom of the U-shape guide structure, and a table is set between two inner side walls of the U-shape guide structure, grooves corresponding to the grooves of the U-shape guide structure being set at the bottom of the table, rollers being set between grooves and grooves to make the table and the U-shape guide structure slide respect to each other with very low friction due to rolling motion of the rollers with high radial load capability.

Abstract: In a ball screw device comprising a screw shaft and a nut which make relative movement to each other through a multiplicity of balls, as well as in a linear motion device comprising an outer member and an inner member which make the relative movements to each other through the multiplicity of balls, a spacer having two concave surfaces facing respectively to balls, is disposed between the balls adjacent to each other. In one preferred form, the spacer has such a configuration that the balls adjacent to each other come into contact with at least three or more outer edge portions of the spacer or portions vicinal to the outer edges.

Abstract: A spacer between adjacent balls of, for example, a ball screw device or a linear motion device has an outer periphery that is concave such that the spacer is elastically deformed to be in substantially circular line contact with the adjacent balls and that a distance therebetween is variable.

Abstract: In a linear guide unit that has an elongated guide housing which limits a guide hollow space with a longitudinal opening, a wagon arrangement which is displaceably guided in the guide hollow space on guide rails, a connection part for connecting the wagon arrangement to an object to be guided, a cover element arranged between movement tracks of the connection part and covering the longitudinal opening, in accordance with the present invention forwardly of and/or rearwardly of the wagon arrangement, at least one support unit is arranged displaceably in direction of the longitudinal axis for supporting the cover element relative to the guide housing; also additionally or alternatively the support unit can support the cover element relative to the wagon arrangement.

Abstract: In a feed unit of a rod-type actuating element that is arranged in a housing (2) and guided for axial displacement relative to the housing (2), the feed unit further being a drive motor (4) that effects the displacement of the actuating element through a driving device that is rotatably retained in bearings in the housing (2), said driving device being a threaded spindle (1) and a spindle nut (3) surrounding the threaded spindle, wherein the drive motor (4) with its stator (5) and rotor (6) is arranged in the housing (2), and the spindle nut (3) is coaxially arranged in and fixed to a hollow shaft (7) that is surrounded by and fixed to the rotor (6).

Abstract: An actuator comprises a driving force-transmitting mechanism which includes a belt member running over a driving pulley and a driven pulley, and a guide mechanism which includes a plurality of balls which rolls along first ball-rolling grooves formed on a frame, and second ball-rolling grooves formed on a slider. The guide mechanism guides the slider when the slider is displaced along the frame.

Abstract: The linear guide apparatus includes a guide rail 3 including a rolling body rolling groove 8 and a friction apply unit 6 assembled to the guide rail 3. The friction apply unit 6 includes a unit main body 15, a brake member 16, an oil pressure cylinder 17 and a plate spring 32. The brake member 16 is disposed so as to face the side surface 3a of the guide rail 3 and can be contacted with the other portions of the side surface 3a than the rolling body rolling groove 8 thereof. The oil pressure cylinder 17 includes a piston member 20 which is structured to be driven in a positive direction to thereby press the brake member 16 against the side surface 3a of the guide rail 3 and also the piston member 20 can be driven in the opposite direction to thereby remove the pressure of the brake member 16 from the side surface 3a.

Abstract: A nut member 5 for moving forward and rearward by rotating a feed screw 4 by a stepping motor 28 and a transfer table 7 for transferring a workpiece W are elastically connected by a spring means 24 in transferring of the workpiece to thereby allow the nut member 5 to overrun by flection of the spring means 24, to allow the stepping motor 28 to rotate excessively in a cushioned manner, and to obtain a thrust for pushing the workpiece against an object after the transfer table 7 reaches the transfer end of the workpiece.

Abstract: A drive for machine components has at least one threaded spindle having spindle sections with oppositely oriented axial pitch. Nuts are seated on the at least one threaded spindle and engage the spindle sections, respectively. At least one motor is connected to the at least one threaded spindle for driving the at least one threaded spindle. A first one of the nuts is connected to a machine component. A second one of the nuts is spatially stationary. The at least one threaded spindle provides a drive moment for driving the machine component.

Abstract: The present invention relates to a new guide actuator with high radial direction load capability, which has the purpose of providing a directional force bearing way to common loading method to make the actuator can bear load and transmit with higher accuracy. On design, the present invention has grooves bearing load at the center of the bottom of the U-shape guide structure, and a table is set between two inner side walls of the U-shape guide structure, grooves corresponding to the grooves of the U-shape guide structure being set at the bottom of the table, rollers being set between grooves and grooves to make the table and the U-shape guide structure slide respect to each other with very low friction due to rolling motion of the rollers with high radial load capability.

Abstract: The linear guide apparatus includes a guide rail 3 including a rolling body rolling groove 8 and a friction apply unit 6 assembled to the guide rail 3. The friction apply unit 6 includes a unit main body 15, a brake member 16, an oil pressure cylinder 17 and a plate spring 32. The brake member 16 is disposed so as to face the side surface 3a of the guide rail 3 and can be contacted with the other portions of the side surface 3a than the rolling body rolling groove 8 thereof. The oil pressure cylinder 17 includes a piston member 20 which is structured to be driven in a positive direction to thereby press the brake member 16 against the side surface 3a of the guide rail 3 and also the piston member 20 can be driven in the opposite direction to thereby remove the pressure of the brake member 16 from the side surface 3a.

Abstract: A drive shaft moving apparatus of the present invention includes a drive shaft 1 with a screw groove 3 formed in spiral shape, and a nut 5 fitted around the drive shaft 1 and being rotatably supported on a main flame 15 so as to allow the drive shaft 1 to axially move. The apparatus is characterized in that a fixing means 17 is provided on a side of the main flame 15 for preventing the drive shaft 1 from rotating, the fixing means 17 includes a guided member 24 being capable of moving along a guide member 4 formed on the drive shaft 1 in the axial direction, and the guided member 24 is disposed between the nut 5 and the drive shaft 1.

Abstract: The present invention is to provide a slide track structure of a linear platform, wherein the center of gravity of the slide track structure of the linear platform may be lowered. In addition, the outer edge of the upper end of the U-shaped guide track is formed with an inclined face or a smooth arc-shaped face, thereby capable of producing better structural stiffness, saving material, and decreasing weight. Thus, the slide track structure of the linear platform of the present invention can increase the structural stiffness, save material, and decrease the entire weight.

Abstract: The linear guide apparatus includes a guide rail 3 including a rolling body rolling groove 8 and a friction apply unit 6 assembled to the guide rail 3. The friction apply unit 6 includes a unit main body 15, a brake member 16, an oil pressure cylinder 17 and a plate spring 32. The brake member 16 is disposed so as to face the side surface 3a of the guide rail 3 and can be contacted with the other portions of the side surface 3a than the rolling body rolling groove 8 thereof. The oil pressure cylinder 17 includes a piston member 20 which is structured to be driven in a positive direction to thereby press the brake member 16 against the side surface 3a of the guide rail 3 and also the piston member 20 can be driven in the opposite direction to thereby remove the pressure of the brake member 16 from the side surface 3a.

Abstract: A linear motion unit (10) includes a runner (14) that is arranged so as to be movable along a rod (12). Provided in front of and/or behind the runner (14) are support units (20) that support the rod (12) relative to a counter-element (18). Provided on the runner (14) and the support units (20) are catches (28) that in each case can be brought into latched engagement with the adjacent support unit (20). The support units (20) are each comprised of a base body (22) upon which is movably mounted a control element (24). The control element (24) can be moved between at least one latched position and at least one released position by means of a control track (30). In accordance with the invention, the control element (24) has at least one control recess (24b).