Abstract: A substrate transport apparatus including a frame, at least one arm link rotatably connected to the frame and a shaftless drive section. The shaftless drive section including stacked drive motors for rotating the at least one arm link relative to the frame through a shaftless interface, each of the stacked drive motors including a stator having stator coils disposed on a fixed post fixed relative to the frame and a rotor substantially peripherally surrounding the stator such that the rotor is connected to a respective one of the at least one arm link for rotating the one of the at least one arm link relative to the frame causing an extension or retraction of the one of the at least one arm link, where the stacked drive motors are disposed in the at least one arm link so that part of each stator is within a common arm link.

Abstract: In a steering apparatus including a column 46, a column 42, a bracket 21 movable with respect to the column 42 upon a secondary collision, a member 81 attaching to the moving bracket 21 and absorbing impact energy with making plastic deformation, a guide bracket 61 fixed to the column 46 and having a guide groove 63 guiding movement of the column 42, and a guide pin 71 fixed to the bracket 21 and movable with the bracket 21 with being guided by the guide groove 63, the guide bracket 61 includes a gap forming portion 61e forming a gap 61d between the guide bracket 61 and the bracket 21, a member 81 is latched to the guide bracket 61 and includes an extending portion extending along the gap 61d, thereby providing a steering apparatus not necessary to fix an end of an impact-energy-absorption member to a vehicle-body-side bracket upon attaching the steering apparatus to the vehicle body, or not restricting a shape of a connecting member by the impact-energy-absorption member.

Abstract: A bicycle shift operating device is provided with a base member, a shift unit and a position sensing device. The base member includes a body portion with an internal cavity. The shift unit is disposed in the internal cavity of the body portion. The shift unit includes a movable portion that selectively moves between a plurality of predetermined operating positions. The position sensing device is removably attached to the body portion while the base member is attached to a bicycle. The position sensing device includes a sensor component that senses the operating position of the movable portion.

Abstract: A trigger has a body, two adjusting buttons, a connecting shaft, a pressing tab and a torsion spring. The body has a back, two sidewalls and two elongated slots. The adjusting buttons are slidably mounted respectively in the elongated slots and are connected to each other with the connecting shaft. The pressing tab is rotatably mounted around the connecting shaft and has a connecting segment, a first pressing segment and a second pressing segment. The first pressing segment is formed on and protrudes from the connecting segment and has a first distance to the back of the body. The second pressing segment is formed on and protrudes from the first pressing segment and has a second distance to the back of the body being different from the first distance of the first pressing segment.

Abstract: A dynamic damper for attenuating torsional vibration of a rotary member, in which a weighted center of a rolling member is offset from a geometric center to trace an elliptical orbit of a cycloid pendulum. The dynamic damper including, a housing having a rolling surface on its inner surface is formed in a rotary member, and a rolling member held in the housing in a manner to be rolled on the rolling surface by torque pulse exerted on the rotary member. In the dynamic damper, a curvature of the rolling surface is entirely constant, and a radius of the rolling member is smaller than that of the rolling surface. A weighted center of the rolling member is offset from a geometric center thereof. The rolling member is guided by a guiding mechanism to roll on the rolling surface.

Abstract: The invention relates to a starting device (22) for internal combustion engines (10). The starting device (22) comprises an electric drive (28) for a drive pinion (24). A gearwheel (16) is mounted on the crankshaft (12) of the internal combustion engine (10). An engaged state of the drive pinion (24) on a drive shaft (26) of the electric drive (28) is effected either by a spacer piece (40) or the starting device (22) is arranged with a reduced spacing (54) in relation to the gearwheel (16).

Abstract: The present invention provides a technology for recovering high-content tantalum from tantalum-containing waste with reducing various impurities such as antimony (Sb) and phosphorus (P) which hinder reuse of the tantalum in tantalum capacitors. The method for recovering tantalum from tantalum-containing waste according to the present invention is characterized in that tantalum-containing waste is subjected to an acid treatment and then to an alkali treatment, thereby recovering tantalum. The acid treatment is preferably performed with use of an acid containing hydrochloric acid and the alkali treatment is preferably performed with use of sodium hydroxide or potassium hydroxide. The tantalum-containing waste in the present invention is preferably a tantalum sintered compact collected from a tantalum capacitor.

Abstract: A power tong jaw comprising a jaw body having upper and lower flange sections with flange apertures formed through the upper and lower flange sections. The power tong jaw will further have a jaw roller including a pin aperture and a roller pin positioned through the pin aperture in the jaw roller and through at least one of the upper or lower jaw flange apertures. The power tong jaw will further include a flexible retaining mechanism (i) positioned between outer surfaces of the upper and lower flange and (ii) engaging the roller pin.

Abstract: A wrench for rotating a drive member such as a socket, the wrench having a housing including a head portion and a handle portion, the head portion having an inner peripheral wall defining an internal cavity; a set of drive teeth circumscribing the inner peripheral wall of the head portion of the housing and extending into the internal cavity; a drive gear disposed within the internal cavity of the head portion of the housing; a socket engaging drive member connected to the drive gear and extending outwardly from the head portion of the housing; a set of opposition gears disposed within the internal cavity of the head portion of the housing, the opposition gears being disposed between and interconnected with the drive gear and the drive teeth; and an operating assembly carried by the housing and operably associated with the drive gear, the operating assembly including a novel quick turn mechanism for controllably changing the operating mode of the wrench from a tightening mode to a loosening mode.

Abstract: A three-protuberance open-end wrench includes a head section. The head section has a first jaw and a second jaw. Two first protuberances are front and rear, side by side, formed on a holding face of the first jaw. A second protuberance is formed on a holding face of the second jaw. A throat is formed between the holding faces of the first and second jaws for receiving a threaded member therein. The protuberances of the first and second jaws serve to hold the threaded member. The protuberances form a non-isosceles triangle.

Abstract: Dual purpose water meter key configured to be utilized in the field to open both water meter covers and water meter shut off valves using one tool. The key can include both a pentagonal abscess and a parallel abscess, the former being used to manipulate a shaped nut associated with a water meter cover and open the water meter cover and the latter used to manipulate a water meter valve and thereby open or close it. A socket abscess can be located on the opposite side of the key to connect the key to receive a bar enabling a user to reach farther into locations behind a meter cover as well as a handle can be provided with the bar to enable a user to gain torque in the case of rusty systems.

Abstract: The invention relates to a combination (1) of control cabinet keys (2), individual keys being situated in the same plane but extending at a fixed angle (x) relative to one another and connected via a common center part (4, 5). Due to the fixed connection between the keys, during handling, a torque may be applied to a key (2) that is used.

Abstract: A socket tool can include a socket having a retention device configured to receive and retain a lubricant fitting to simplify removal or installation of the lubricant fitting. In one example, the retention device can be disposed within the socket between the first and second ends of the socket, and the retention device can be configured to receive and retain a nipple portion of the lubricant fitting at a depth inward from the second end of the socket such that a threaded portion of the lubricant fitting extends beyond the second end of the socket.

Abstract: A locking pliers includes a fixed handle supporting a fixed jaw, a movable jaw, a movable handle pivotally connected to the movable jaw about a pivotal axis, and a movable pivot unit disposed on the fixed handle and the movable jaw. The pivot unit includes a pivot pin and a pivot hole configured to loosely receive the pivot pin such that, when a manual turning force is applied to the movable handle, the movable jaw is turned clockwise to a locking position. As a result of abutting engagement between the pivot pin and a leading region of the pivot hole, a friction force is generated to hold the movable jaw in a tightening position. The gripping force between fixed and movable clamping surfaces of the jaws can be firm and stable.

Abstract: There is provided a machine tool which holds a large number of tools and capable of performing various kinds of works without replacing the tools, which is easy to operate and which allows faster and accurate operations with less number of movable parts. A front tool post (141) and a back spindle (120) are configured to be integrally movable in a Y-axis direction, and a plurality of front working tools (140) and a plurality of back working tools (130) are disposed on the front and back tool posts (141) and (131), respectively, in a plurality of tiers in the Y-axis direction.

Abstract: A steady rest has a body juxtposable with a workpiece rotatable about a workpiece axis. Two arm elements are pivoted on the body and carry outer rollers radially engageable with the workpiece. A center element shiftable on the body in a straight line generally radially of the axis carries a center roller engageable radially with the workpiece. The rollers are angularly spaced about the workpiece. An electric actuator mounted on the body is connected by a transmission to the elements for displacing the respective roller radially relative to the workpiece.

Abstract: A chemical etched die to be used in combination with a (e.g., roller) press to cut out shapes that are printed on sheet material. The die includes an outside border that surrounds an inside opening through the die. The size of the inside opening corresponds to the size of the shape to be cut. A cutting edge (i.e., blade) projects from the outside border of the die so as to surround the inside opening therethrough. The cutting edge is positioned at the interface of the outside border and the inside opening of the die whereby none of the outside border extends past the cutting edge and none of the outside border lies between the cutting edge and the inside opening. Accordingly, the cutting edge of the die will be exactly registered with the printed shape to be cut when the shape is surrounded by the outside border of the die.

Abstract: A cutting apparatus configured to hold an elongate element, such as a ribbon, in a desired orientation as the elongate element is cut into two sections. A cutting element of such a cutting apparatus may be confined to a single orientation relative to that of the elongate element, reducing or eliminating the likelihood of misalignment between the cutting element and the elongate element immediately before the elongate element is cut. In some embodiments, the cutting apparatus, or even its cutting element, may be configured to seal the newly cut ends of the elongate element. Methods for cutting and or sealing elongate elements, such as ribbons, are also disclosed.

Abstract: A method for removing metal pieces contained in gypsum board wastes from the gypsum board wastes by means of a drum magnetic separator, wherein the method comprises the step of dropping cut pieces obtained by cutting the gypsum board wastes at fixed intervals “D” on the drum magnetic separator at a drop height “h”; and the drop height “h” is 0.8 to 3 times the interval “D”.

Abstract: A paper discharging apparatus comprises: a first conveying unit; a second conveying unit which includes a pinch roller and a feeding roller that are arranged closer to the downstream side; a movable mechanism which moves a surface part between a first position that the surface part is not contacted with the pinch roller and a second position that the surface part is contacted with the pinch roller through the paper so as to push the pinch roller; a control unit which moves the surface part to the second position, clamps the paper by the pinch roller and the surface part, and conveys the paper, thereby bending the paper, and which moves the surface part to the first position and clamps the paper by the pinch roller and the feeding roller, and rotates the feeding roller, thereby discharging the paper from the conveyance path.

Abstract: An electrode plate manufacturing device of the invention includes: an original plate support portion that supports an original plate of an electrode plate; a first pressing portion; a frame-shaped punching-out blade; a support substrate; and a driving portion, wherein the first pressing portion is disposed at in an area inside of the frame shape of the punching-out blade and with a predetermined gap from the punching-out blade, and when the support substrate advances toward the original plate support portion, the first pressing portion presses the original plate and the punching-out blade cuts the original plate in accordance with the frame shape.

Abstract: Apparatus including a first U shaped member having two vertical arms and a cross member located at the bottom ends of the two arms, two rails each having a top end attached to the top end of the first U shaped member and a bottom end where the two rails are located behind the two vertical arms of the first U shaped member, and a second inverted U shaped member having two vertical arms and a cross member which is attached to the top ends of the two arms where the two vertical arms are located behind and attached to the bottom ends of the two rails. The space between the two vertical arms of the first U shaped member and the two rails located behind the two vertical arms of the first U shaped member form two spaced apart slots for guiding a knife blade as it is moved up and down while cutting or chopping a food item.

Abstract: A method for forming a prearranged rupture portion for an air bag door including the steps of setting an instrument panel on a fixing jig, and, then measuring, prior to forming grooves that make a prearranged rupture portion, the position of the back surface of a substrate of the instrument panel by a measuring device.

Abstract: A method for producing a roller used for manufacturing a retarder film is provided. The method includes providing the roller having a roller surface; providing an embossing tool having an embossing end and embossing the roller surface with the embossing tool. The embossing end has a plurality of first microgroove structures and second microgroove structures. The first and second micro-groove structures are both parallel structures. Each one of the first microgroove structures is symmetric to each one of the second microgroove structures with respect to a symmetry line. An included angle of the symmetry line between each first micro-groove structure and that between each second micro-groove structure are 45±8 degrees.

Abstract: An apparatus for introducing weakening cuts in a film or skin includes a cutting knife and a support arranged in opposition to the cutting knife, wherein the film or skin can be placed between the support and the cutting knife and borne by the support, and the cutting knife is movable relative to the film or skin. In order to ensure a defined residual wall thickness, the invention proposes that the distance between the cutting knife and the support in the direction of the cutting axis can be designed to be kept constant by a device.

Abstract: A stringed musical instrument that includes strings, each of which is adapted to create vibration of pre-determined range of frequency, a main body that amplifies the vibration created by the strings and a string support device that supports the strings and is connected to the main body. The strings are supported by a string tension adjust device around one end of the instrument. The strings are supported by a support piece that supports all of the strings together and is fixed to the main body around the other end of the instrument. A vibration medium is placed between the support piece and the main body. The frequency range for the vibration medium is substantially similar to the pre-determined range of frequency for the strings.

Abstract: Instrument having automatic fine-tuning of pitch with no moving parts. In prior flutes the notes are slightly off pitch because of compromises in locations of the holes, and musicians must compensate. In this invention a sensor picks up sound and a circuit identifies the played note. The played note is compared with a frequency reference, in a closed loop. The frequency difference generates an additional signal in phase quadrature relationship with the played note. A tuning actuator at one end adds the quadrature signal to correct the pitch by altering its phase. The closed loop causes the tone to have precisely correct pitch. A feature permits a player to intentionally deflect the pitch for artistic expression.

Abstract: Disclosed herein is a power supply device for supplying power to a pickup device for a guitar. The pickup device includes a battery casing detachably provided with a battery for supplying power to a pickup unit and a TRS connector configured such that signal lines are connected thereto. The power supply line of the battery is connected in parallel to two of the signal lines between the battery casing and the TRS connector. The power supply device includes a pickup connector connected to the TRS connector, an external device connector connected to an external device, and a step-down transformer configured to step down commercial power and supply the stepped-down power to the pickup device via the TRS connector.

Abstract: A semi-continuous duty, Green Technology, self-charging 14, unmanned electric vehicle providing protection and security from underground mines. A deflector blade 11 follows natural existing contours to maintain straight line paths, while simultaneously carrying a mine detector 10, a vertical reciprocating ram set 30, 32 and 33 that preloads soil while also creating forward motion, followed by an energy dissipation and containment canopy system 22, 24, 26 & 29. The comprehensive system provides protection from mines on existing pathways in desert environments using a self-sufficient energy source. In addition, the total system utilizes only Green Technology for all modes of operation.

Abstract: A sealing ring obturates a propellant charge cartridge of an automatic firearm for caseless ammunition, in particular against an end face of a firearm element, in particular for a breech or a projectile cartridge. The sealing ring contains a sealing surface that can be brought into contact with the end face. The sealing surface contains a first region around an annular opening of the sealing ring and a second region around the first region. The second region is set back relative to a tangential surface to the first region. In addition, a propellant charge cartridge for an automatic firearm for caseless ammunition, has at least one of the sealing rings. The propellant charge cartridge preferably contains one or multiple, in particular two, propellant charge chambers, which are provided with a sealing ring on each of the breech side and the projectile cartridge side.

Abstract: A utility vehicle with underfloor structure giving protection from mine explosions. There is a wedge at the edge of the driver compartment which splits the detonation blast from a mine buried in the track of a front wheel. There is a multilayer stack, inboard of the wedge, which crushes upward to reduce the detonation wave from a mine buried under the vehicle. The stack comprises panels to catch the detonation wave and separated by spacers. Spacers are longitudinal stringers stacked above each other and welded, forming deep beams joined to bulkheads, making the vehicle's frame. The wedge also bolts to bulkheads, augmenting the frame. In cross section, the stack is curved, tapering off at each end to merge with the “V” of a wedge. The wedge crushes sideways under the detonation wave, providing protection at the edge of the driver compartment where stack material has run out.

Abstract: A blast resistant cladding includes a curtainwall arranged on a structure and defines a load path for transferring loads imparted on the curtainwall to the structure and an absorbing system positioned along the load path and configured for absorbing blast-type loads imparted on the curtainwall.

Abstract: A reactive armor that includes a tube having a substantially central longitudinal axis, and at least two force reaction faces that are parallel to the axis; a casing that includes a back, at least two sides, and at least two end blocks; wherein the sides extend away from the back, the blocks are fastened to the sides at edges opposite of the back, and the tube is positioned between the blocks to form a cover to the casing; initiators included between the end blocks and the force reaction faces; a sensor subsystem that detects a threat, wherein the sensor subsystem is coupled to the initiators, and the sensor subsystem generates an initiation signal in response to the detection of the threat; and when the initiators receive the initiation signal, the initiators substantially simultaneously generate a force such that the tube is rotated about the axis to rotationally defeat the threat.

Abstract: A hydraulic cylinder contamination prevention system for preventing large and small contaminants from entering into a hydraulic cylinder, including a hydraulic cylinder rod cover for underwater use with at least one automatic valve for preventing water circulation between the outside environment and the enclosed environment of the cylinder rod cover when the cylinder is stationary, egress of water from the cylinder rod cover when the cylinder is retracted, and ingress of water into the cylinder rod cover when cylinder is extended, and an external and abrasive cylinder rod scrubber.

Abstract: Disclosed is a diaphragm having a flexible film portion and an outer peripheral flange portion integrally provided on the peripheral edge of the film portion, said outer peripheral flange portion being provided between and held by a first housing and a second housing, wherein the film portion is prevented from rising upward when the diaphragm is attached to the housings. The outer peripheral flange portion has a first pressed surface which is one surface of the diaphragm in the thickness direction and which is in close contact with the first housing, and a three-dimensional shape composed of a projected portion or a recessed portion, on the first pressed surface. When the outer peripheral flange portion is attached to the first housing and the second housing while being compressed and deformed therebetween, the three-dimensional shape defines voids in the thickness direction between the outer peripheral flange portion and the first housing.

Abstract: A fluid end for a high pressure pump with improved resistance to fatigue failure is disclosed. Interior surfaces that are prone to fatigue failure are laser peened to resist cracking and other types of failures. A work holder for supporting the fluid end as it is peened is also disclosed.

Abstract: The present invention is intended to detect a failure of a PM filter with a higher degree of accuracy. The present invention is provided with: a PM trapping efficiency calculation part to calculate a PM trapping efficiency (which is a proportion of an amount of particulate matter trapped with respect to an amount of inflow particulate matter) based on an amount of inflow particulate matter obtained by an inflow particulate matter obtaining part, and an amount of outflow particulate matter detected by a PM sensor; and a failure detection part to make a determination that a failure has occurred in the PM filter, in cases where there has appeared a tendency for the PM trapping efficiency to decrease during a period of time until the execution of the following filter regeneration processing is started after the completion of execution of the filter regeneration processing.

Abstract: The gas separation membrane of the present invention provides a gas separation membrane that exhibits superior gas permeability and separation selectivity and plasticity to the extent that it can endure bending testing and has little pinholes and a method for producing the gas separation membrane. Through the gas separation membrane of the present invention, it is possible to provide a superior gas separation method, a gas separation membrane module, and a gas separation and purification apparatus including the gas separation membrane module. Through the gas separation membrane of the present invention, it is possible to provide a superior gas separation method, a gas separation membrane module, and a gas separation apparatus including the gas separation membrane module.

Abstract: Disclosed herein is a process for conditioning natural gas containing C3+ hydrocarbons, so that it can be used as combustion fuel to run gas-powered equipment, including gas engines and turbine-driven compressors, in the gas field or the gas processing plant. The claimed process uses glassy polymeric membranes that are preferentially permeable to methane over C2+ hydrocarbons to produce a partially purified methane stream. Conditioned fuel gas has lower heating value, higher methane number, and will result in greatly reduced emissions from the engines.

Abstract: Embodiments of crystalline, titanium silicate molecular sieves are described having a formula representing mole ratios of oxides of nM1O:TiO2:ySiO2:zH2O:wX where M1 refers to a metal cation or mixture of metal cations; n is from about 1 to about 2; y is from about 1 to about 10; z is from 0 to about 100; X is a halide anion other than fluorine, or combination of halide anions that excludes fluorine; and w is greater than 0. The pore size of the sieves can be adjusted by ion exchanging M1 cations with a suitable amount of another species. Embodiments of the invention are useful for various adsorptive fluid separation processes, including pressure swing adsorption processes. For example, disclosed embodiments are useful for separating methane from air.

Abstract: The present invention provides a method for removal of organic compounds, such as acetic acid, from waste water streams in processes for production of (meth)acrylic acid. In particular, a mixed product gas, comprising (meth)acrylic acid, acetic acid, propylene and acrolein, is subjected to fractional absorption to produce an aqueous product stream comprising (meth)acrylic acid, water and acetic acid, and an absorber off-gas stream comprising propylene and acrolein. The aqueous product stream is distilled to produce a purified (meth)acrylic acid stream and a waste water stream comprising water and acetic acid. The absorber off gas is then contacted with the waste water stream and at least a portion of the acetic acid moves from the waste water stream to the absorber off gas to produce a stripped waste water stream and an enriched absorber off gas.

Abstract: The invention provides an air filter system specially designed to fit over the air conditioning and heat vents located on the dashboard of a vehicle. The filter provides an adhesively attached filter containing activated charcoal and an air freshening scent to provide a more pleasant and healthy intake of air.

Abstract: A beverage preparation machine (1) comprises: a beverage preparation module (2) that vibrates during use, in particular a module for preparing a beverage by circulating a liquid via a flavouring ingredient such a pre-portioned ingredient contained in a capsule; and a reservoir (4) for storing liquid and supplying such liquid to the beverage preparation module. The beverage preparation module and the reservoir are connected by a vibration-barrier 44 mechanical connection (3, 45, 291, 431) for inhibiting or preventing propagation of vibrations from the beverage preparation module to the reservoir.

Abstract: Capsule for the preparation of a beverage from beverage ingredients contained therein, comprising a body (2) comprising at least one compartment for receiving said beverage ingredients and a flange-like rim (4) extending outwardly and transversally to a central axis (I) of said body; a membrane (6) for closing the opening which is sealed onto the flange-like rim, an optical code (7) containing binary information configured to be read by a camera (11) of a beverage producing device (20), wherein the optical code (7) is a two-dimensional barcode having rectilinear borders (7a-7d) and which is inscribed in a circular area (8) concentric relative to the centre (O) of the membrane having a radius (R) smaller than the radius (R0) of the membrane.

Abstract: A brewing unit (1) of an espresso coffee machine including a brewing chamber (25) and at least one spring-loaded pressure valve (16) which is flow-technically arranged between the brewing chamber (25) and a coffee beverage outlet and which opens when the brewing chamber pressure exceeds a structurally predetermined value. In order to produce by means of the coffee machine one kind of coffee beverage selected from at least two kinds of coffee beverages, an atmospheric coffee beverage bypass channel (21) flow-wisely disposed in parallel relative to the pressure valve (16) between the brewing chamber (25) and the coffee beverage outlet (23) may be locked depending on the kind of coffee beverage selected.

Abstract: The invention describes a machine for making ice-cream which comprises a holding tank and a cooling and/or heating circuit for a liquid or semi-liquid foodstuff to be treated, a detection apparatus capable of detecting a characteristic parameter of this product, and a control unit capable of recognizing the product starting from this parameter, and for setting operating parameters for the machine on the basis of the product recognized.

Abstract: The invention relates to a conditioning/moisturising device for almond grains, especially designed to provide the grains of the fruit with the elasticity required in order to cut the grain into flakes, sticks, cubes or other configurations, with minimum loss through production of flour and others. The device essentially comprises an elongate body, with a generally cylindrical shape and tilted position, which includes on the inside thereof a means for sweeping the almond, made up of a spindle which sweeps the fruit in an upward direction in a steam-saturated environment. with controlled temperature, for which purpose the cylindrical body comprises a plurality of steam injection nozzles, said steam being distributed externally and fed to said nozzles from an external steam distributor. The device includes temperature and steam sensors whose measurements are suitable for regulating the rotating speed of the spindle in order to adjust the time during which the almond remains in the environment inside the body.

Abstract: A method for operating a baler with a pressing chamber which serves for the pressing of a straw-like crop includes compacting the crop using an adjustable pressing pressure and binding the crop through a holding material. The pressing pressure is limited to a maximum value and controlled through a control circuit. A control circuit reference variable is a load variable of the holding material. The load variable is adjustable and is smaller than or equal to the maximum value.

Abstract: A feeding and reversing mechanism for a strapping machine includes a forward-reverse wheel assembly and a tension wheel assembly which are mounted on a base and arranged in such a way to provide larger contact areas between a strapping band and the two wheel assemblies. The feeding and reversing mechanism further includes first and second spring units. The first spring unit helps to keep a suitable gap between an active wheel and a passive wheel of the tension wheel assembly for the strapping band to pass through. The second spring unit helps to move the passive wheel toward the active wheel of the tension wheel assembly, so that the strapping band can be clamped between the passive wheel and the active wheel tightly to facilitate reversing and tightening of the strapping band.

Abstract: A reverse tension mechanism for a strapping machine includes an active wheel, a supporting arm installed with a passive wheel, a lever, and a spring. The supporting arm can be moved relative to the active wheel so that a strapping band which passes through between the passive wheel and the active wheel is clamped to control retracting and tightening of the strapping band. A first end of the lever is pivotably connected to a section of the supporting arm, and the spring is vertically installed between a second end of the lever and the section of the supporting arm. The first end of the lever can be activated by a cam to press the spring vertically to produce pushing force to swing the supporting arm.