Abstract: According to an example aspect of the present invention, there is provided a spring loaded retractable device comprising a frame, a movable part hinged to a first pin and comprising an opening radially aligned to the first pin, wherein a strap is movable through the opening, and wherein the movable part is configured to move from a first position into a second position by rotating around an axis of rotation due to friction between the movable part and the moving strap.

Abstract: Provided is an improved come along device with a handle, a release trigger for a stop pawl, and a push tab for a release pawl. The handle may allow an operator to better grasp the come along device. The release trigger allows an operator to release tension in a cable by disengaging the stop pawl when the trigger is pulled and engaging the stop pawl when the trigger is released. The push tab allows an operator to disengage the release pawl when the push tab is pressed and engage the release pawl when the push tab is pulled.

Abstract: A safety tensioning device includes a base, a handle, a winding mechanism and a first bundling strap. The first bundling strap is disposed on the main rotating shaft and the winding mechanism. The winding mechanism includes a box, a coil spring component and a winding shaft passing through the box with two ends exposed out of the box. One end of the winding shaft is attached to the coil spring component, a centrifugal self-locking mechanism to stop the winding shaft winding when a rotation speed is too fast, is attached to another end of the winding shaft.

Abstract: The invention discloses a tensioner comprising a belt shaft, a first bracket and a second bracket, a belt shaft hole is provided at a front end of the first bracket, the belt shaft passes through the hole and is hinged with the first bracket; a surface of the belt shaft is provided with a ratchet fixedly connected thereto and gaskets provided on two sides of the ratchet; one end of the second bracket is provided with a clamping portion, the clamping portion clamps two ends of the belt shaft and protrudes outwardly to form an accommodating cavity, balls are provided inside the accommodation cavity, and the balls are installed on an outer gasket of the belt shaft. The plastic gaskets greatly reduce the friction between the ratchet and the bracket, the balls provide a certain degree of freedom for the belt shaft to prevent the belt shaft from jamming.

Abstract: A tensioning apparatus tensions straps, and in particular is configured to tension belts. In order to achieve good tensioning characteristics, the tensioning apparatus has a dynamically acting element, and by use of the dynamically acting element a transmission of force takes place indirectly in the case of the tensioning apparatus.

Abstract: The present invention has an objective to provide a dolly for handling a landing gear of an aircraft that enables, while being downsized, work of positioning the landing gear with respect to an attachment portion of an airframe of the aircraft to be performed efficiently, and a method for attaching or detaching a landing gear using the dolly. A dolly (10) for handling a landing gear (20) of an aircraft includes a base (11), an expandable boom (12) that rises from the base (11) and is expandable and contractible, a hoisting boom (13) that is interconnected to the expandable boom (12) in a raisable and lowerable manner, and a holding portion (15) that is suspended on the hoisting boom (13) and retains the landing gear (20).

Abstract: Height adjusting device (1) for adjusting the height of an agitating device (2) in a digester (101) of a biogas plant (100), biogas plant (100) comprising a digester (101), a support unit (10), a displacement member (6), an agitating device (2), and a height adjusting device, and method for operating an agitating device (2). The height adjusting device comprises a housing unit (4), a drum device (5) rotatably accommodated on the housing unit (4), and a displacement member (6). The displacement member (6) is in functional connection with the drum device (5) and the agitating device (2) and the displacement member (6), depending on the direction of rotation of the drum device (5), can be wound onto the drum device (5) or unwound from the drum device (5) in sections, so that the agitating device (2) can be displaced upwardly or downwardly.

Abstract: Pruning shears include a cutting head with a spring-biased blade; a driving line connected at a first end to the blade; an elongated body; a handle; and a frusto-conical shaped wheel connected rotatably to the handle. The diameter of the wheel at a first end being smaller than the diameter at a second end. The line is wound into a spiral groove around the wheel at the first end; a second end of the line is attached to a second end of the elongated body; and the line wound around the wheel moves toward the second end of the wheel when unwinding a part of the line from around the wheel and winding another part of the line around the wheel for decreasing the distance between the first and second ends of the line, resulting in movement of the blade in relation to the jaw, when the handle is moved.

Abstract: A fiber strap packing machine includes a main body. One side of the main body is provided with a fastening device, a cutting device, and a strap pressing device. The fastening device includes a power unit, a tension adjustment unit, and a strap rolling unit. The power unit is connected with the tension adjustment unit and the strap rolling unit. When the strap rolling unit is tightened by a fiber strap, the power of the power unit will be transmitted to the tension adjustment unit through the fastening device. The tension adjustment unit stops the power to be transmitted to the strap rolling unit so as to automatically adjust the tightness of the fiber strap and prevent the tightening device from being damaged by the external force and the power.

Abstract: A multi-stage transmission tensioning device for automobile safety comprises a base group (1), a handle group (2) and a multi-stage transmission group (3); the multi-stage transmission group (3) comprises a transmission shaft (25) for pivoting both with the base of the base group (1) and the handle of the handle group (2), a main rotating shaft (28) used for winding a long strap (31), and a transmission wheel fixed on the transmission shaft (25). A fairly large binding force on the straps ultimately can be achieved from a small force applied to the handle by multiple conversions. Different binding forces in the case of applying the same handle force may be got via the increase or decrease of the transmission stages and the change of the transmission ratio of the transmission at all stages.

Abstract: A storage device within a ratchet arrangement for automatically storing a length of fastening material including a storage housing and a biasing member for drawing the fastening material into the storage housing. The fastening material can be used with a ratchet/handle tie-down mechanism, allowing for the dynamic portion of the webbing to automatically be retracted into the storage housing. The automatic retraction leaves little or no excess webbing or fastening material, such that a user does not have to tie off excess webbing or material.

Abstract: A strap-tensioning device includes a base that receives a rotatable drum rigidly connected to toothed wheels, and configured to engage a holding pawl; tensioning lever rotatably mounted by hinging onto the drum, and provided with a pawl for driving the toothed wheels; an unlocking pawl configured to release the toothed wheels from the respective engagement thereof with the holding pawl and with the driving pawl, rotatably mounted, independently of the rotation of the tensioning lever, by hinging onto the drum. The unlocking lever is rigidly connected to two parallel cams having the same profile, and configured to simultaneously engage, respectively, the holding pawl and the driving pawl, so as to release the rotation of the drum.

Abstract: A tie-down device includes a frame, a strap, a reeling unit, a driving unit and a gear box. The frame includes two walls extending from a base. The reeling unit includes a reel rotationally supported on the walls for reeling the strap. The driving unit is supported on the first wall. The gearbox connects the driving unit to the reeling unit.

Abstract: An attachment device which includes: a length of material which is fixed to a body portion of the attachment device at one end thereof via a loop, the other end of the length of material being capable, in use, of being passed around a frame or part thereof to which the bracket is to be attached; a gripping mechanism capable of receiving the free end of the length of material and holding the length of material received therein, in a set position, until the gripping mechanism is released; and wherein the looping of the length of material to the body portion positions the length of material between the body portion and the frame or part thereof to which the attachment device is attached in use.

Abstract: A stringing angle clamp device and methods associated therewith are provided. The stringing angle clamp device has a pulley wheel rotatable about an axle. A connecting structure has at least a first end and a second end, wherein the first end rotatably is affixed to the axle and the second end is sized to connect to a utility pole. A first guide arm and a second guide arm are each rotatably affixed to the axle. A first wire clamping structure is affixed to the first guide arm and a second wire clamping structure is affixed to the second guide arm.

Abstract: A rope rolling structure of a hand puller contains a fixing member and a rope roller. The fixing member includes a base, a central shaft assembly, two ratchet wheels, and a lower stopping piece. The base has a first segment and a second segment, and the first segment has two opposite orifices. The central shaft assembly is pivoted with the two opposite orifices. Each ratchet wheel includes plural ratchets. The lower stopping piece is fixed on the base and engages with or disengages from one of the plural ratchets. The rope roller has a rolling post and two stop disks, the rolling post has an opening, each stop disk has two apertures, such that the rope roller inserts into and retains with the central shaft assembly by using the two apertures, so when the central shaft assembly rotates, the rope roller is driven by the central shaft assembly to rotate.

Abstract: A strap-tensioning apparatus includes a base including two walls each formed with a first arched edge and a second arched edge, a short strap connected to the base, a spring-loaded reel supported on the base, a long strap wound on the reel, a spring-loaded detent movably supported on the walls for engagement with the reel, a handle supported on the base, and a spring-loaded detent/suppressor is movably supported on the handle for engagement with the reel. The detent/suppressor suppresses the reel when it is retained in position on the first arched edges of the walls but allows the reel to spin when it is moved on the first arched edges of the walls in a direction.

Abstract: A strip clamping device having a strip to be clamped (1), a clamping mechanism (3) provided with a winding body (2) for the strip to be clamped (1), a toothed locking wheel (4) which is associated with the winding body (2) and has a locking toothed wheel work (5) in which a pawl (8) and a driving ratchet (7) associated with a driving lever (6) engage in order to rotate the winding body (2) in a defined direction by repeated pivoting of the driving lever (6). The winding body (2) has a spring accumulator (9) acting in the winding direction, and is a storage spool receiving essentially the entire length of the strip (1), one end of the strip being connected to the winding body (2) in a fixed manner.

Abstract: An overload warning system for a winch hoist of the type that includes a drum that rotates about a drum shaft, a handle that is received in a socket, wherein the handle can be used to turn the drum, and a movable frame that is located between the socket and the housing. The socket is coupled to the drum shaft. There is a shear pin with one end embedded in the frame and the other end embedded in the socket, the shear pin defining a relatively weak shear zone located between the frame and the socket. There is an elongated opening defined in the socket and a projection projecting from the frame and into or through the elongated opening. If the shear pin fails under rotational load applied through the handle, the socket will rotate relative to the frame until the edge of the elongated opening contacts the projection. The socket movement provides tactile feedback that the shear pin has failed, while maintaining control over the hoist operation via the handle.

Abstract: A tensioning apparatus includes a first shaft and a strap wound on the first shaft such that the strap has first and second portions extending in opposite directions, and the first portion of the strap is collected on the first shaft by operably moving the rotating shaft. The tensioning apparatus further includes a reeling device for collecting the second portion of the strap. Furthermore, the reeling device includes a ratcheting mechanism that facilitates collection of the strap.

Abstract: A fastener includes a frame; a rotary shaft mounted to the frame and having a passage running through a center thereof; two ratchet wheels, a first lock member; a handle pivoted to the rotary shaft; a second lock member movably mounted to the handle and having an operation portion for a user's hand to operate to force the second lock member to disengage from the ratchet wheels; a rewinding member mounted to the handle and having a reel, a spring coil, and a shell; and a strap having two ends, one of which is mounted to the rewinding member and the other passes through the passage, and are wound around the rewinding member. Accordingly, the fastener allows the user to conveniently rewind the strap to enhance the user's operational hand feel.

Abstract: A strap-tensioning apparatus includes a frame, a handle, a reel, two ratcheted wheels, two detents and a strap-damping unit. The handle is connected to the frame. The reel is supported on the frame. The ratcheted wheels are secured to the reel. The strap is inserted through a slit of the reel. The first detent is supported on the handle for engagement with the ratcheted wheels to rotate the reel when the handle is pivoted in a direction. The second detent is supported on the frame for engagement with the ratcheted wheels to stop the reel when the handle is pivoted in an opposite direction. The strap-damping unit includes a crossbar, a pressing element and a spring. The crossbar is supported on the frame. The pressing element is biased toward the crossbar by a spring. The strap is inserted through a gap between the pressing element and the crossbar.

Abstract: Described is a ratchet strap with a free end securing system. The ratchet strap has a strap with an attachment end and a free end and a strap winding shaft which is capable of receiving the free end in a wrapped relationship. A ratchet mechanism is included for simultaneously shortening the attachment end and the free end wherein the free end is drawn from the wrapped relationship with the strap winding shaft.

Abstract: A clutchable pry bar includes a bar member with a fitting connector; a rack member fitted with the fitting connector of the bar member, including two slots adjacent to a closed end of the rack member, and including two through holes proximate to an opened end of the rack member; a ratchet shaft inserted to the through hole of the rack member, and including a first end portion disposed on one end thereof; at least one ratchet member fitted to the ratchet shaft, a plate member movably fixed to the slots of the rack member, a returning spring between pegs of the plate member and a central extension of the bar member; a stem member to be retained with the ratchet shaft after the stem member is inserted to a radial bore of the ratchet shaft.

Abstract: A strap-tensioning apparatus includes a frame, a handle connected to the frame, a reel supported on the frame, two ratchets secured to the reel, a first detent supported on the handle and biased to engage with the ratchets, and a second detent supported on the frame and biased to engage with the ratchets. The frame includes two walls each including a recess. The handle includes two walls each including a lobe. The first detent includes a chamfered tip. The ratchets can slide on the chamfered tip of the first detent to allow a strap to be reeled out when the chamfered tip of the first detent is in the recesses of the frame. The second detent is disengaged from the ratchets by the lobes of the handle when the chamfered tip of the first detent is in the recesses of the walls of the frame.

Abstract: A strap-tightening device includes a frame, a handle connected to the frame and a reel located on the frame. A first detent is located on the frame. A second detent is located on the handle. The second detent includes two horns each including a downward prong and an upward prong. The reel includes a cylinder and two ratcheted wheels attached to the cylinder. The ratcheted wheels are engaged with the upward prongs of the horns of the second detent during pivoting of the handle in a direction to cause the cylinder to reel in a strap. The ratcheted wheels are engaged with the first detent during pivoting of the handle in an opposite direction to prevent the handle from spinning the cylinder to reel out the strap. A withdrawing unit spins the reel to withdraw the strap.

Abstract: A ratchet tie-down includes a frame, a lever including two cams pivotally connected to the frame, a reeling device rotatably mounted on the frame and lever, and a ratcheting device including two ratchet wheels mounted on the reeling device. The ratchet tie-down further includes a reinforcement assembly including two reinforcement members mounted on the reeling device. Each ratchet wheel includes two lateral sides disposed between one cam and one reinforcement member. Each reinforcement member defines an annular surface in contact with one lateral side of one ratchet wheel, and with the reinforcement member imposing an urging force in a direction perpendicular to a rotation direction of the ratchet wheel.

Abstract: There is disclosed a load binder device (10) for tightening, a load, for example during transport on a truck. The device is connected to hooks (80, 102) for securement to suitable anchor points and has an actuating lever (20) and lashing wheels 40. The actuating lever includes a pushing plate (32) which engages ratchet teeth (41) of the lashing wheels to rotate them. A stop plate (56) engages with the ratchet teeth and allows the lashing wheels to be rotated to tighten the load but prevents the wheels from rotating in an opposite direction to release the load. The actuating lever can be released from the lashing wheels by lifting the pushing plate and can be moved into an unlocking position in which cam-like lobes (24), forming part of the lever, force the locking plate into a disengagement position for releasing the lashing wheels to allow the load to be released.

Abstract: A hand puller and a central shaft structure thereof contains a base including a first and a second sides having a fixed pillar with a fixed rope and a controlling portion with an axial hole respectively, and including a removable retaining member; a pulling member including a first and a second segments having an axial connecting portion with an axial bore and a holding portion individually, and including a movable rod; two ratchets, each including plural teeth and an orifice to match with the central shafts; wherein the retaining member and the movable rod contact with the ratchet respectively, the central shaft is solid, made of a metal bar material, and includes two ends between which an outer surface is defined, and each end of the central shaft includes a limiting member higher than the outer surface so that the base and the ratchets are positioned on the central shafts.

Abstract: The present invention is briefly named “The tightener” for fastening a selected securing member around an object and carrying it comprising a set of two independent devices. One of them is an ordinary clamp being in common use everywhere in the world with a strap permanently attached to it and said clamp is modified to enable connecting it with a tightening device and named a jamming clamp to distinguish one clamp from the other. The tightening device comprises a shaft with its ends and with a ratchet mechanism is mounted in a two-arms handle. Said handle operating as a lever of the ratchet mechanism turning said shaft.

Abstract: An improved ratchet strapping device is provided, comprising a frame, an axle, and a handle pivotally installed on the axle. Ratchets are mounted on the axle and adjacent to the exterior of the frame. The frame includes a first detent on the outside of the frame which engages the ratchet. A release device is mounted on the handle, wherein the release device includes a second detent on the outside of the handle which engages the ratchets at another location. The frame includes a first cam having a radius greater than the ratchets and on which the second detent slides, and the handle includes a second cam having a radius greater than the ratchets and on which the first detent slides. Placement of the ratchet and detent components on the outside of the device permits spooling of substantially all of the strap for storage or unused portions of the strap during use.

Abstract: A cargo tightener and strap collector is shown having a rotatable shaft provided on the lever portion of the cargo tightener and strap collector. A slot is provided in the shaft so that the free end of a strap may be inserted in the slot and wound on the shaft to secure the strap and prevent its fluttering in the wind or trailing on the ground while in use. The rotatable shaft provided on the lever portion of the cargo tightener and strap collector is made to have a cross-section or shape, at least proximate one end, to mate or interfere with a recess in at least one of the sidewalls on the lever portion when a second rotation means urges the sidewalls together. There is thus provided positive locking of the wound strap.

Abstract: A winch has a color area or other indicium that indicates whether an elongate member extending from winch spool is or is not tensioned. The winch includes a biasing member between a winch drive system and the spool that allows only limited rotation of the spool relative to the drive system. Movement of the drive system relative to the winch spool causes the indicium to signal that the elongate member is under tension.

Abstract: This practical new model makes an improved binding machine known to the public, which includes main body, handle, ratchet wheel, roller, fastening belt, latch reed spring, control plate. Among them, the handle's side board is linked with the main section's side board through torsion spring. In this manner, when the fastening belt needs to be tightened as the binding machine is being used, the user can press down the handle which will resume its initial position with the bounce force of the torsion spring. It is not necessary for the user to push it back to the initial position after pressing the handle down. It is very easy and labor-saving with higher efficiency. Furthermore, it can also set a coil spring in the outside end of the roller. The fastening belt can withdraw inside the main section automatically, which is very convenient.

Abstract: A tightener for a binding strap is disclosed. A base is penetrated with a rotating axle with a ratchet installed on its one end. A tooth limits the ratchet to move in a single direction. A driving element is mounted on the rotating axle. A ratchet tooth engages with the ratchet for the driving element to drive the ratchet. The driving element has a cam part and a blocking part.

Abstract: A tensioning apparatus includes a first shaft and a strap wound on the first shaft such that the strap has first and second portions extending in opposite directions, and the first portion of the strap is collected on the first shaft by operably moving the rotating shaft. The tensioning apparatus further includes a reeling device for collecting the second portion of the strap. Furthermore, the reeling device includes a ratcheting mechanism that facilitates collection of the strap.

Abstract: A fastener includes a frame, a handle and a reel inserted through the frame and handle so that a strap can be reeled when the reel is rotated. Two bushings are connected to the frame for protecting the reel from the handle or the frame. Two ratchet wheels are connected to the reel. A first detent is movable on the frame for engagement with the ratchet wheels. A second detent is movable on the handle for engagement with the ratchet wheels.

Abstract: A ratchet-driven mechanical winch that is adapted to measure the force applied to a cable, wire, or other tether through the operation of Hooke's Law. The device operates by compressing a pair of linear springs as increasing force is applied to the cable, wire, or other tether.

Abstract: A tensioning apparatus is adapted to tension a strap. The tensioning apparatus includes a frame and a shaft rotatably installed on the frame. The strap is inserted through the shaft and includes first and second portions extending in opposite directions. A handle is pivotally connected to the frame and is operable to rotate the shaft and wind the strap on the shaft thereafter. The tensioning apparatus also include a reeling device and the second portion of the strap is adapted to be received and wound onto the reeling device.

Abstract: A cargo bracing device includes a base having two side plates for rotatably attaching a reel drum, one or more toothed discs attached to the reel drum and controlled to rotate relative to the base with a stop, an operating arm having two legs rotatably attached to the reel drum, a catch device attached to the operating arm and engaged with the toothed disc, and an anchoring device may detachably anchor the legs of the operating arm to the reel drum, and the legs of the operating arm may be selectively disengaged from the reel drum to prevent the operating arm from being operated by unauthorized persons, and for preventing the cargo from being stolen by the unauthorized persons.

Abstract: A binding machine includes a tightening mechanism adapted to tension a belt and a limiting mechanism adapted to limit tensioning of the belt. The tightening mechanism includes, for example, a ratchet and a pawl coupled to a body of the tightening mechanism. A handle is adapted to rotate the ratchet in a first direction in response to a first force applied to the handle. The pawl is adapted to prevent the ratchet from returning in a second direction when the first force is released. A spring mechanism allows the handle to indicate when a second force opposing the first force achieves an established magnitude.

Abstract: A machine for storing a strap with a bag attached to the fixed strap of a ratchet-buckle assembly.

Abstract: A ratchet device is provided that includes a base frame with the drive mechanisms located on the outside of the base frame so that a removable strap may be stored on a rotatable shaft about an axis relative to the base frame. The aforementioned outer drive mechanisms include a rotatable shaft knob, a latching bar, a drive bar, and a release cam.

Abstract: A cable tightening device includes a fixed unit including a base, a rotation member rotatably mounted on a first end of the base, a movable unit including a movable member rotatably mounted on the rotation member and movable relative to the base, and a holding member secured on a second end of the base. Thus, the base of the fixed unit is integrally combined with the holding member without having to provide a bolt and a nut, thereby decreasing the costs of fabrication. In addition, the holding member is integrally combined with the base of the fixed unit by punching so that the holding member will not detach from the base of the fixed unit, thereby facilitating operation of the cable tightening device.

Abstract: A ratchet mechanism for securing cargo that may include a body, a ratchet, a lever and an adjustable or extendable handle. The ratchet may include a pair of opposing arms connected to the body and a spool rotatably connected to the arms. The lever may be rotatably attached to the arms and reciprocated between an open position and a closed position, wherein the lever may include at least one pawl to engage the ratchet wheels and rotate the spool when the lever is reciprocated. The handle may be adjustable to increase the mechanical advantage of the lever. The handle may be rotatably connected to the lever to extend the length of the lever. The handle may be slidably connected to the lever, to slide between a compact position where the handle is closer to the spool, and an extended position where the handle extends further away from the spool.

Abstract: A tree stand lock apparatus comprises a ratchet buckle part and a wire rope part. The ratchet buckle part comprises a spool with a transaxial bore, a ratcheting lever handle, a locking means and a base affixed to a hook. The wire rope part comprises a wire rope, one end of which is affixed to a hook. The lock may be employed by wrapping the wire rope around a portion of a tree stand, hooking the hook of the rope to the hook of the ratchet buckle and threading the wire rope through the transaxial bore. The ratchet buckle is operated to render the wire rope taut and the buckle is locked in the closed position.

Abstract: Hand winch comprising a wind roll for receiving a flexible elongated member, an operation shaft engaged with the wind roll for transmitting forces therebetween, a friction brake including a gear member being in engagement with the wind roll and having a thrust position in which the gear member acts on a stationary member for generating braking forces directed oppositely to a sense of winding off the elongated member, characterized in that said gear member is movably mounted on the operation shaft such that, in case of winding off the elongated member, the gear member is displaced from a released position to said thrust position.

Abstract: A stress-indicating rope-tightening apparatus includes a rope-tightening unit and a stress-indicating unit. The rope-tightening unit includes a rotational joint. The stress-indicating unit includes two strain gauges disposed on two opposite sides of the rotational joint for measuring the strain in the rotational joint, a calculator for calculating the stress in the rope based on the strain in the rotational joint and a display for showing the stress in the rope.

Abstract: A cable tension device includes a fixing seat, a rotation shaft, a ratchet unit, a movable seat, a safety locking plate, a control member, an engaging board, a push board, a compression spring, and a tension adjustment knob. Thus, when the cable is tightened to a determined extent by rotation of the movable seat, the force applied by the cable on the ratchet unit is greater than that applied by the engaging board and the push board on the ratchet unit, so that the engaging board is pushed and deflected by the ratchet unit to pass by the ratchet unit, and the movable seat performs an idle rotation, thereby preventing the cable from being tightened too excessively.

Abstract: A strap winder includes a base having a first strap end connecting structure; a ratchet wheel rotatably mounted in the base and having a second strap end connecting structure; and a handle pivotably mounted to the base and preferably engaging the ratchet member so that pivot of the handle in an opening movement, wherein the handle is moved away from the base, does not rotate the ratchet wheel, and wherein pivot of the handle in a closing movement, wherein the handle is moved toward the base, rotates the ratchet wheel. The strap winder is preferably made at least partially from plastic, and has characteristics which facilitate injection molding.