Abstract: A collision prevention detector (22), and a method therefor, to be mounted on a vehicle (10), transmits a sequence of transmissions of IR signals. The signals are transmitted in sequences alternating between at least one at the right and to the left positioned LED (24, 26, 34, 36), when both signals provide a return/reflected signal to IR-receiver an object (12) is determined as present within the area/zone from the point where the transmitted signals intersect/cross. Sequencing of signals makes it possible to position a return signal from an object (12), as one of the signals has to confirm the other signal to provide a warning signal. Moreover, a first set of LED's detects objects in a near-field zone (40) of the vehicle, and a second set detects objects beyond the first field in a far-field zone (42), whereby at least two sets of the LED's are positioned to the right and to the left.

Abstract: An antenna assembly having an operating frequency and a vertical radiation pattern with a main lobe axis defining a downtilt angle with respect to the earth's surface. The antenna assembly comprises a plurality of antennas in first, second, and third antenna groups physically disposed along a backplane, the backplane having a longitudinal axis along which the antennas are disposed, and a phase adjustment mechanism disposed electrically connected between the second first and third antenna groups, such that adjustment of the phase adjustment mechanism results in variation of the vertical radiation pattern downtilt angle.

Abstract: The present invention relates to an optical device which includes a first laser diode, a beam splitter, a first objective lens, a photo-detector, a second laser diode, a wedged plate beam splitter, a second objective lens and a collimator. The present invention deploys two independent transmitting paths. The retrieving paths share the beam splitter and the photo-detector commonly at the returning route.

Abstract: An apparatus for transmitting WPAN (Wireless Personal Area Network) MAC (Medium Access Control) frames includes a transport frame management unit for creating MAC transport frames if data is generated from an upper protocol and application layer unit, classifying the created MAC transport frames by kinds, and managing the classified MAC transport frames by queues, a transport memory control unit for transmitting the transport frames at a high speed, and a transport frame transmission unit for responsible for the transmission of the transport frames by judging the transmission time of the frames.

Abstract: Provided is a system and method for terrestrial digital broadcasting service using a single frequency network without additional equipment. The system and method synchronizes input signals into transmitting stations by inserting a transmission synchronization signal into a header of TS periodically, and solves the problematic ambiguity of the trellis encoder by including a trellis encoder switching unit separately and initializing a memory of the trellis encoder. The terrestrial digital broadcasting system includes: a broadcasting station for multiplexing video, voice and additional signals into transport stream (TS) and transmitting the TS to the transmitting stations and a transmitting stations for receiving the TS and broadcast the TS to receiving stations through a single frequency network.

Abstract: A teleradiology system provides the capability of rendering and studying of a remotely located volume data without requiring transmission of the entire data to the user's local computer. The system comprises: receiving station (300) under the control of a user (400); transmitting station (100); the connecting network (200); the user interface (32) with functionality of controlling volume data rendering, transmission, and display; and the interface with patient data source (10). The teleradiology system of the invention provides an integrated functionality of data transmission of current teleradiology systems and volume data rendering/visualization of current volume data rendering/visualization systems. The system may be readily used with an intranet, the internet (including the internet2) or via a direct dial-up using a telephone line with a modem, and can serve as an enterprise-wide PACS and may be readily integrated with other PACS and image distribution systems.

Abstract: A combination water dispenser with heating mechanism including a reservoir having an automatic inlet means for replenishing water into the reservoir and a controlled water outlet means for dispensing water from the reservoir. The reservoir includes a reservoir heating element which has an applied electric current for heating the water. An indicating means for indicating the activation and deactivation of the reservoir heating element is included on the dispenser. A user actuated means adapted to simultaneously activate the reservoir heating element and the indicating means is positioned on the dispenser. A temperature regulating means responsive to the temperature of the water monitors the temperature of the water during the heating of the water. The dispenser includes an automatic deactivation means adapted to deactivate the reservoir heating element upon receiving a signal from the temperature regulating means.

Abstract: This invention relates to a method of imaging amyloid deposits and to labeled compounds, and methods of making labeled compounds useful in imaging amyloid deposits. This invention also relates to compounds, and methods of making compounds for inhibiting the aggregation of amyloid proteins to form amyloid deposits, and a method of delivering a therapeutic agent to amyloid deposits.

Abstract: Cooling compounds are provided having the formula: wherein, m is 0 or 1, Y and Z are selected independently from the group consisting of H, OH, C1-C4 straight or branched alkyl, and a C1-C4 straight or branched alkoxy, X is (CH2)n—R, where n is 0 or 1 and R is a group with non-bonding electrons, with the provisos that: (a) when Y and Z are H, X is not F, OH, MeO or NO2 in the 4-position and is not OH in the 2 or 6-position (b) when Y or Z is H then X, Y and Z are such that (i) the groups in the 3- and 4-positions are not both OMe, (ii) the groups in the 4- and 5-positions are not both OMe, (iii) the groups in 3- and 5-positions are not OMe if the group in the 4-position is OH, and (iv) the groups in the 3- and 5-positions are not OH if the group in the 4-position is methyl.

Abstract: A power source for an implantable medical device, such as a spinal cord stimulator, has a controlled contoured anterior surface. Preferably, the contoured anterior surface includes a layer of a biocompatible material, such as a polymer. Also preferably, the layer provides a contour generally conforming to the profile of a human buttock. Optionally, a cosmetic implant of generally substantially the same size and shape as the power source is implanted in the opposite buttock as the power source so as to create balance.

Abstract: A system for producing custom media images, the system including a media server which includes a title database and a creation server connected to the media server, the title database containing a plurality of title records, each title record including a title description file and a plurality of compiled title media files, the creation server receiving a request to produce a media image from a selection of titles respective of the title records, the creation server producing a set of media management files according to the title description file of each the selected title records, and generating a media image containing the media management files and a copy of the compiled title media files of each the selected title records.

Abstract: A processor-memory bus comprises a command portion for transmitting addresses and commands, having a unidirectional input portion for transmitting commands to a central repeater unit, and a unidirectional broadcast portion for broadcasting commands from the repeater. The input portion comprises a plurality of links running from different devices, wherein each link is less than the full width of the broadcast bus portion. A command is transmitted over the input portion in a plurality of bus cycles, and broadcast over the broadcast portion in a single bus cycle. Since multiple input links connect to the central command repeater, it is possible to keep the broadcast bus full notwithstanding the fact that multiple bus cycles are required to transmit an individual command on the input portion. Preferably, the links are arranged hierarchically, from processors to local repeaters, from local repeaters to the central repeater, and back again.

Abstract: The present invention provides a device for securing to the calf, shin and foot of a motorcycle user, to afford protection against heated exhaust parts and emissions therefrom. The device comprises a bi-layered material, with an aesthetically pleasing outer layer and thermally resistant inner layer. The device secures to the shin using adjustable elastic straps and securing snaps. The device features an optional ankle protector of the same bi-layered material attached to the bottom of the main bi-layered pad. Further, the optional ankle protector rolls up and secures into a stowed position to maintain maximum flexibility when not in use.

Abstract: A glove includes two “H” shaped stiffening battens on a dorsal side. The battens terminate on a proximal side of the second through fifth fingers, and are formed from a non-rigid material. A one-piece protective panel is attached to the palmar side of the glove. The protective panel covers portions of the wearing hand palm corresponding to the distal ends of the second through fifth metacarpal bones, as well as palmar side portions of the second through fifth digits corresponding to the second through fifth proximal phalanx bones. Flex notch cut-outs in the protective panel correspond to portions of the palmar region which tend to bunch during gripping of a bar or other object and help prevent discomfort during such gripping.

Abstract: An ear hole cover secures to an ear hole in headgear, such as baseball and football helmets. The ear hole cover has a body having an inner surface and a planar outer surface. Means are included for securing the body to the ear hole in the headgear. At least one hole extends through the body from the outer surface to the inner surface, the at least one hole for passing sound through the body to an ear of a wearer of the headgear. An indicia surface extends across the planar outer surface for displaying an indicia, such as a team logo or mascot.

Abstract: An apparatus used in adjusting a garment or a piece of fabric and a method for implementing the same. The apparatus includes a bottom piece of fabric attached to a top piece of fabric and a piece of elastic sized to fit between the top and bottom pieces of fabric. The top piece of fabric includes two openings, one toward each end, through which the elastic piece fits. The elastic piece includes a plurality apertures sized to be able to receive buttons, which buttons are attached to the top and bottom pieces of fabric and buttoned through a corresponding aperture in the elastic piece.

Abstract: The cotton pants 1 as a pair of pants with the L pocket is that the front and the reverse edge 3Ab of the storing part 3A is perpendicular against the length direction of the belt part 3. Also because the upper edge of the raw fabric which does not have the rectangle expansion and contraction inside the elongating part 3B is sewn on and the lower edge of the raw fabric which does not have expansion and contraction is sewn on the lower edge of the belt part 3, one part of the raw fabric 6 which does not have expansion and contraction can be seen even if the one who wears it turns over the lower edge of the elongating part 3B by curiosity and the inner structure of the stretch stopper material 11 etc. can not be seen.

Abstract: A spinal protective device includes a plurality of support members abutted in series with one another along a spine of a user. Each adjacent pair of support members has a respective pair of forward fulcrum contact areas where the support members abut one another for relative pivotal movement in a hyperflexion direction and a respective pair of rearward fulcrum contact areas where the support members abut one another for relative pivotal movement in a hyperextension direction. A rear tension member connected between the support members limits relative movement in the hyperflexion direction and a front tension member connected between the support members limits relative movement between the support members in the hyperextension direction. Straps about the torso secure the support members along the spine of the user.

Abstract: A shower trench drain apparatus includes a shower trench drain body of polymeric material having an integrally-formed drain channel with angled bottom surface and drain opening or openings, a waterproof membrane over the drain body, a clamp ring retaining the membrane to the drain body, and a grate adjustably retained to the drain body by a height adjustment mechanism. The trench drain body formed from a block of material such as PVC or ABS, which are compatible with approved plumbing materials and codes. The block has a flat bottom adapted for horizontal support during installation and includes integrally-formed features facilitating adjustment during installation while minimizing components and separate parts and simplicity of installation.

Abstract: A shower pan (10), preferably having rectangular planform includes a central drain (20) that is centered in a floor portion that inclines at a shallow angle (i.e., 3 degrees or so) to front and back sides and opposite ends. The floor portion and includes a shallow channel (46) along the front edge of the shower pan (10) into which all or substantially all water is drained to a second channel (48) into a central drain (20). An apertured grill or cover plate assembly (36) is mounted in the channels and serves as a cover for the various channels. The shower pan (10) is typically installed so that a sill surface (50) is at the same elevation as the pre-existing floor (52) to provide an entry that does not have any type of ‘trip’ points or obstructions that could pose a hazard to the user or impede assistive aids, such as walkers or wheeled chairs.

Abstract: The invention discloses a resin-based composite sanitary ware, which is characterized in that: the sanitary ware is made by mixing up and injecting the raw materials and then solidifying the mold; and the ingredients of the raw materials and their weight ratios are as follows: unsaturated polyester resin composition 14%-30%; unsaturated polyester anti-shrinking medium 6%-14%; reinforcing fiber 11%-37%; scale stone 10%-20%; calcium carbonate 25%-40%; initiator 0.8%-2.4%. And this invention also discloses the preparation method of the sanitary ware. Compared with the current technology, the invention has the advantages of strong strength, high tenacity, perfect self-cleaning capacity and low energy consumption.

Abstract: A self-deployable device (1) for a child, comprising an arcuate structure (110, 120) capable of supporting in the deployed state at least one wall (20) made of flexible material defining a space for receiving a child, and at least one stiffener bar (200, 201) to withstand bearing against the arcuate structure. Just one (210, 211) of the two ends of the bar is secured to the arcuate structure by a fixed connection, such that said bar is able to remain connected to the arcuate structure when said structure passes from the folded-up state to the deployed state and/or vice versa.

Abstract: A patient support apparatus includes a frame and a mattress support deck coupled to the frame. The mattress support deck is movable between a horizontal position to support a patient in a lying position and a chair egress position to support the patient in a sitting position. The patient support apparatus has at least one actuator coupled to the mattress support deck and operable to move the mattress support deck between the horizontal position and the chair egress position. Control circuitry is coupled to the at least one actuator and is operable to command operation of the at least one actuator. In response to the control circuitry receiving a chair lockout signal, the at least one actuator is prevented from being operated to move the mattress support deck into the chair egress position.

Abstract: A patient support apparatus includes a frame, a patient support coupled to the frame, a plurality of casters and a wheel coupled to the frame, a motor coupled to the wheel and operable to rotate the wheel to propel the patient support apparatus along a floor, and an electrical system comprising a controller configured to signal operation of the motor to rotate the wheel to propel the patient support apparatus along the floor. The electrical system further includes user inputs adjacent at least one end of the frame and adjacent at least one side of the frame. The user inputs including forward and reverse switches that are engaged to determine whether the patient support apparatus is propelled in a forward direction or a rearward direction, respectively.

Abstract: A patient-support apparatus includes a mattress assembly supported on a frame, the mattress assembly including a coverlet configured to provide low-airloss therapy to a patient supported on the patient-support apparatus. The patient-support apparatus is articulable to a number of positions and includes a control network which is responsive to movement of portions of the frame to alter operational parameters of the frame and mattress assembly.

Abstract: A movable bed of the present invention, which includes a mat portion of a bed to lie thereon, and is composed of a fixed portion and a moving portion, is designed as a wheel chair in such a manner that the moving portion can be separated from or joined to the fixed portion and be transformed from a lying posture state to a sitting posture state, and when the moving portion is joined to the fixed portion so as to form the movable bed, an upper surface of a resting portion, allowing a person to carry thereon, of the moving portion and an inner surface of an armrest portion are configured to form a mat surface of the mat portion of the movable bed.

Abstract: A patient support apparatus including a bed frame, an adjustable foot section coupled to a foot end of the bed frame, and a deck moveably coupled to the adjustable foot section. The deck defines a foot support surface having a length dimension defined along a longitudinal axis of the bed frame and a width dimension defined transverse to the longitudinal axis. The length dimension is a first length and the width dimension is a first width when the adjustable foot section is in a first position, and the length dimension is a second length and the width dimension is a second width when the adjustable foot section is in a second position. The second length is less than the first length, and the second width is greater than the first width.

Abstract: A flat backboard for an injured person to lie upon is supported between two rigid support poles. The support poles are connected at each end of the stretcher to each other by an elevated support assembly. The support assembly has a handlebar structure and a mount assembly; this mount assembly has a central axle, around which the handlebar assembly fits, allowing for the handlebars to rotate without the mount assembly or the backboard rotating. When the holder of the handlebars generates a rocking motion, the central shaft rotates in the mount assembly, such that the weight of the injured person is supported by the mount assembly, but the rocking motion is not communicated to the mount assembly or the backboard.

Abstract: Spring cushions (10) having slow-acting pocketed spring cores (12) characterized by the individual springs of the cores (12) being pocketed within semi-impermeable fabric material and a method of making such pocketed spring cores (12). Cushioning material is located between adjacent rows of pocketed springs to reduce noise.

Abstract: A body support pillow assembly is provided for holding a person in an upright position facilitating eating, performing certain tasks, or inhibiting acid reflux. The assembly includes a wedge having a top surface and a bottom surface. A pair of opposed side walls is coupled to the wedge and each of the side walls extends upwardly from a perimeter edge of the upper surface of the wedge. A pair of opposed arms grooves is provided. Each arm groove is positioned in a respective one of the side walls. A neck support is coupled to and extends between upper ends of the side walls.

Abstract: A construction method of a steel composite girder bridge includes installing steel girders on piers and forming shearing connectors on the steel girders at intervals of a predetermined distance, installing stagings and a first form for casting deck concrete in the steel girders, installing non-composite members in an upper flange of the steel girders to form each non-composite section of supporting points, installing a second form around each of the shearing connectors to form a shearing pocket, arranging sheath pipes in the supporting points and forming supporting point decks by casting and curing concrete, applying pre-stress to each section of the supporting point decks through the sheath pipes and performing a grouting process, forming span decks adjacent to the supporting point decks by casting and curing concrete in each span between the piers, and filling the shearing pockets with non-shrinkage mortar.

Abstract: A suction type turbine-driven pool-cleaners utilizing vortex turbines to propel and steer the pool cleaner is disclosed. The cleaner includes a housing for one or more vortex-turbine mechanisms, each with a chamber and a turbine, tracks for movement over submerged surfaces, a differential mechanism for steering purposes, a reverse of inlet flow mechanism, a cam design for engagement of steering and reversing mechanisms, a means of controller inlet flow for steering purposes, and a means of controlling flow for reversing direction of cleaner movement.

Abstract: A system includes an installation to be cleaned which has at an inlet a fluid feed pipe fed with fluid and at an outlet a fluid evacuation pipe. A cleaning device is arranged to cause cleaning bodies to flow in the installation, the cleaning device including on an inlet filter elements for filtering the fluid and on an evacuation pipe separator elements for collecting the cleaning bodies. The separator and filter elements are static and include separate filters, the separator elements including a filter member, the cleaning device including a circuit for recovering cleaning bodies circulating in the evacuation pipe and a circuit for reinjecting them into the inlet, the two circuits having in common the filter member and being used alternately by actuating a set of controlled valves in order to cause the fluid to flow either in the recovery circuit or in the reinjection circuit.

Abstract: A device to encourage hand washing which provides visual feedback to a user who can control a video game, blow bubbles, or view other visual feedback device while washing their hands. The device in one mode features at least one controller configured to operate when wet or continually doused with water while the user is washing their hands. The user may view a video or other means for visual interaction while washing their hands, and control a portion of the display with the controller. A video game or the like may thus be played by washing their hands thereby providing user encouragement to wash their hands. In a hand powered mode of the device, a compressible shell is employed to blow bubbles while squeezed and concurrently washing the user's hands. The controller or the shell may be employed with components providing a dermabrasive action against the palm of the user.

Abstract: There is provided a system for cleaning a surface of a solar cell panel. The system includes a measurement unit measuring a power generation value of a solar cell panel, a reference unit providing a reference value, a control unit comparing the power generation value measured at the measurement unit with the reference value provided from the reference unit to command cleaning of the solar cell panel, a driving unit operating a cleaning apparatus for cleaning a surface of the solar cell panel. The control unit commands cleaning of the solar cell panel only when the power generation value decreases because of a contamination of the surface of the solar cell panel.

Abstract: An electric toothbrush includes a handpiece and a mountable attachment. The attachment includes a working head and a coupling member which is joined to the working head and connectable to the toothbrush handpiece by positive and/or frictional engagement. The attachment can be an attachment brush for dental cleansing, or for interproximal cleaning devices, such as gum massage heads or other attachment tools for performing similar tasks in the oral cavity. The coupling member is braced against the toothbrush handpiece, to provide a low to zero-play connection which accommodates production tolerances. At least one pivot lever or toggle joint is provided for clamping the coupling member upon the toothbrush handpiece.

Abstract: A composite bristle and a method of making is disclosed comprising a metallic bristle embedded within a generally central region of a polymeric bristle. A periodic bend is formed along the length of each of the composite bristles. The invention is also incorporated into a composite brush and a method of making.

Abstract: A first base layer includes capability to attach the sandpaper cleaner to an appendage of the user, either elastic memory in the first embodiment, a pocket allowing the device to be worn on the hand as a mitt or, alternatively, belt-receiving slots or a protrudable flap for insertion into a user's pocket. A second layer is bonded to the upper surface of the first and features a material such as flocked foam for clearing accumulated particulate from the grit of the abrasive of the sandpaper.

Abstract: A windshield wiper includes a wiper post and a connection unit which is used to connect the wiper post and a wiper arm. The wiper rod has a bottom connected with a rubber blade. The wiper post has an opening at a central portion thereof, a recess at a central bottom of the opening, and a resilient plate disposed on the recess. One end of the resilient plate is connected with the bottom of the opening, and another end of the resilient plate is suspended above the recess and has an engaging buckle. The opening has protruding steps which are formed at two sides of the resilient plate. The protruding steps each have a vertical surface formed with a lumpy section. The connection unit is detachably mounted in the opening of the wiper post. The connection unit has a bottom formed with a protruding platform corresponding to the opening. The protruding platform has a slide trough at a central portion thereof corresponding to the resilient plate.

Abstract: A double bucket system for flat mops that is mounted in a frame. One bucket contains only clean water. The second bucket is used to hold dirty water. The second bucket has a special fixture attached that the user slides the mop through. The frame compresses the mop as it slides through, which ensure complete, even pressing of the mop to extract the greatest amount of dirty water. The frame includes footpads upon which the user stands during the pressing operation. This ensures that the device remains in place during the pressing. Finally, once the mop has been thoroughly pressed, the user can pick up clean water from the first bucket for the next portion of the floor to be cleaned. In this way, the user is able to quickly clean a large floor with clean water instead of repeatedly dipping the mop back into dirty water.

Abstract: A floor cleaning robot comprises a housing, wheels, and a motor driving the wheels to move the robot across a floor, a control module disposed within the housing and directing movement of the robot across the floor, a sensor for detecting and communicating obstacle information to the control module so that the control module can cause the robot to react to the obstacle, a removable bin disposed at least partially within the housing and receiving particulates, a first rotating member directing particulates toward the bin, and a second rotating member cooperating with the first rotating member to direct particulates toward the bin. The removable bin receives particulates directed thereto by the first and second rotating members and the particulates pass from the first rotating member to the removable bin without passing through a filter.

Abstract: A cleaning appliance of the canister type includes a substantially spherical floor engaging rolling assembly including a fluid inlet for receiving a fluid flow and a device for acting on the fluid flow received through the inlet, and a plurality of floor engaging support members for supporting the rolling assembly as it is maneuvered over a floor surface.

Abstract: A vacuum cleaner is disclosed. The present invention relates to a vacuum cleaner that is able to form dust and foreign substances collected in a dust collection device provided therein in a single mass shape to discharge it efficiently, not scattered in a dust collecting device. The vacuum cleaner includes a body, a dust separation device mounted in the body, a dust collection device independently provided from the dust separation device, connected to the dust collection device, a compression device provided in the dust collection device, to collect dust and foreign substances collected in a predetermined portion of the dust collection device and to compress the collected dust and foreign substances, and a liquid supply device provided in the dust separation device to supply liquid material to the dust separation device.

Abstract: Suction appliance for cleaning purposes, comprising a dirt collecting container with a suction outlet on which a filter is held, a suction unit for acting upon the dirt collecting container with negative pressure, a suction chamber between the suction unit and the filter with an external air inlet, via which external air can flow into the suction chamber to act upon the filter on the clean-space side, a valve device with a valve seat forming the external air inlet, a movable valve body to seal and release the valve seat, and an actuating member to cause the valve body to be transferred from a closed position to an open position. The appliance can comprise an energy storage device, to which energy to be stored can be supplied by actuating the actuating member. Stored energy can be released for transferring the valve body from the closed position to the open position.

Abstract: A cleaner head for a cleaning appliance includes a housing, a sole plate for engaging with the floor surface, the sole plate comprising a suction opening through which dirt-bearing air enters the cleaner head, and a flexible annular seal located between the sole plate and the housing to allow the housing to move relative to the sole plate to reduce the force exerted on the sole plate by the housing, thereby allowing the sole plate to ride over the floor surface during a cleaning operation. The cleaner head includes at least one floor engaging support member connected to the housing for restricting the movement of the housing towards the sole plate to prevent the housing from pushing the sole plate against the floor surface.

Abstract: An electric system that includes a single-phase permanent-magnet electric machine and a control system for driving the electric machine. The control system sequentially excites and freewheels a winding of the electric machine so as maintain substantially constant power over an operating speed range spanning at least 10 krpm and/or an excitation voltage range extending between a minimum voltage and a maximum voltage, the minimum voltage being less than 80% of the maximum voltage. Additionally, a product comprising the electric system.

Abstract: An overhead door safety system includes a loading dock having a loading dock wall defining an opening. A truck and trailer door safety device is mounted to the loading dock wall. The truck and trailer door safety device includes a mounting bracket adapted for mounting to the loading dock wall and a swing arm. The swing arm includes an arm extension portion and a pivot portion. The pivot portion is pivotally mounted to the mounting bracket so that the swing arm pivots about a pivot axis between a retaining position and a storage position. In the retaining position, the arm extension portion is disposed beneath an overhead door of a truck positioned adjacent to the opening of the loading dock wall to prevent the overhead door from closing.

Abstract: A hardware system for mounting a structure includes at least one roller assembly and a base surface. A roller assembly includes a substantially round outer ring, a substantially round inner ring, and a frame that structurally engages at least a portion of a side surface of the inner ring. The frame and the side surface of the inner ring remain stationary with respect to each other when the outer ring rotates about its axis of rotation. One or more roller assembl(ies) may be included within a hardware system for mounting a structure such as a door panel, a window panel, a window covering, a decoration or the like that is able to be rolled along a base surface by the roller assembly.

Abstract: An adjustable pulling rod set includes a switch, a base and a cover. The switch is on the base. The switch includes an operating component, two positioning rods and a spring. A rail and two gaps are opened on the operating component. The two gaps communicate with the rail. The two positioning rods pass through the rail respectively. Two abutting nodes are defined on one end of the two positioning rods respectively. Each abutting node has two wings. The two wings abut against the inner side of the two gaps. Both ends of the spring abut against the two abutting nodes of the two positioning rods respectively. When the button is pressed, the two wings are forced by the two slice bodies along the two gaps and the two positioning rods compress the spring. Thus, the height of a pulling rod will be adjustable.

Abstract: A hinge assembly includes a first body, and a second body capable of rotating relatively to the first body. The first body includes a first main part and a pair of stopper portions respectively extending from two sides of the first main part and coplanar with the first main part. Two ends of a shaft are fixed with the pair of stopper portions, respectively. The second body includes a second main part, a pair of blocking portions and a resilient arm located between the pair of the blocking portions. When the second body rotates to be perpendicular to the first body, the second body is positioned stably relative to the first body without an external force, due to an elasticity of the resilient arm of the second body.