136 results about "Tooth segment" patented technology

In a gearing, in particular coaxial gearing, hollow shaft gearing, hypoid gearing, axial gearing or linear gearing, with a driving element (7), an element (3) and an output element (11), a stepping-up and transmission of a driving torque between driving element (7) and output element (11) are to take place via a plurality of movable tooth segments (5).

The invention discloses a computer interaction type method for segmenting a single tooth crown from a three-dimensional jaw model. The method includes the steps: reading and visually displaying the three-dimensional jaw grid model; detecting anatomic characteristic points and an occlusion plane of upper teeth of a jaw in the three-dimensional jaw grid model; assigning constraint points of harmonic fields of the three-dimensional jaw grid model; calculating the harmonic fields according to constraint conditions to obtain a tooth crown segmenting border line; performing grid cutting according to the obtained tooth crown segmenting border line to obtain a tooth crown model. By the method, a tooth segmenting border can be accurately obtained, the method is simple to use, and a user interactively determines two border points on a visual view of the jaw model for a single tooth to be separated, so that the tooth crown grid model of the tooth can be accurately obtained. The method has important significance for dental orthodontics, virtual jaw surgery simulation and the like.

An adjustable head stack comb is disclosed. The adjustable head stack comb includes first and second adjustable comb plates including at least one tooth segment which cooperatively form a comb having at least one tooth. The first and second comb plates are adjusted to adjust dimensions of the at least one tooth cooperatively formed by the tooth segments of the first and second comb plates. In the embodiments disclosed, a relative position of the first and second comb plates is adjusted to adjust a thickness dimension of the at least one tooth formed by the at least one tooth segments of the first and second comb plates. Also in illustrated embodiments, the comb plates are cooperatively adjusted to adjust an elevation or z-height of the at least one tooth of the comb.

An electric motor, includes a stator, which is composed at least of stamp-packed tooth segments, the tooth segments being able to be slid together radially in the manufacture and being able to be held together by retaining elements slid on axially.

A transmission, in particular a coaxial transmission or linear transmission, comprising a toothing, a tooth holder in which a plurality of tooth segments are accommodated to engage with the toothing, wherein the tooth segments are borne to be radially shiftable relative to the tooth holder, a drive element having a profiling for radially driving the tooth segments borne in a radially shiftable manner, wherein the transmission has inner initial stress.

A fitting (10) for a vehicle seat, in particular for a motor vehicle seat, includes a first fitting part (11), on which a ring gear (17) is formed, a second fitting part (12), on which a gear (16) is formed, which gear meshes with the ring gear (17), whereby the two fitting parts (11, 12) are in a transmission connection with each other, and a rotating eccentric (27, 35) for driving a relative rolling motion of the gear (16) and the ring gear (17). The eccentric is driven by a carrier (21), wherein the eccentric (27, 35) is rotatably supported in a collar (38), which is associated with one of the two fitting parts (11, 12), or in a bushing (28) sitting in said collar (38) in a rotationally fixed manner. A blocking element (50) for the eccentric (27, 35) is operative at least at times between the eccentric (27, 35) and the bushing (28). The bushing (28) has teeth (28a) pointing radially outward and the blocking element (50), which surrounds the bushing (28) annularly, has at least one, in particular two, tooth segments (58) pointing radially inward for interacting with the teeth (28a).

The invention relates to a vehicle seat comprising a seat part for providing a seat surface for a seat occupant, a guide track arrangement for the longitudinally adjustable arrangement of the vehicle seat in a vehicle and a height adjustment device comprising a plurality of rockers which are pivotably coupled to the seat part and the guide track arrangement and which connect the seat part to the guide track so as to be adjustable in height, and a drive unit powered by an electric motor for driving a first rocker of the plurality of rockers. The drive unit has an output pinion which engages in a toothing of a tooth segment and can be made to move in rotation with respect to the tooth segment in order to set the seat height of the seat part relative to the guide track arrangement. To this end the output pinion (531) is disposed on the first rocker (51a) and the tooth segment (552) is disposed immovably on the guide track arrangement (4) or on the seat part (2). In this way a vehicle seat is created which also enables the arrangement of a drive unit powered by an electric motor in a space-saving manner on a so-called tunnel side of a vehicle seat and at the same time can provide a reliable support for loading forces.

Systems and methods are provided for a motor having a concentrated winding construction with reduced torque ripple. A motor comprises a stator including a plurality of tooth segments disposed circumferentially to establish a hollow core and a rotor rotatably disposed inside the hollow core. The plurality of tooth segments define a plurality of slot openings associated with a plurality of slots. Each slot of the plurality of slots has a slot opening and at least one slot opening of the plurality of slot openings is asymmetric with respect to the plurality of slot openings.

The invention discloses an automatic feeding and discharging dehydration device of vegetables and fruits. The automatic feeding and discharging dehydration device comprises a bottom plate, a dehydration tank and a material collecting box, wherein a screw rod shaft is arranged on the lower side of the dehydration tank, a slip sleeve connected with a screw rod section of the screw rod shaft throughscrew-thread fit is arranged on the screw rod section of the screw rod shaft, a lower closing plate is arranged at the bottom of the material collecting box, a cross shaft is arranged on a top plate,a dehydration screen plate is arranged in the dehydration tank, an oblique drainage plate is arranged at the bottom of the dehydration tank, a liquid outlet is formed at a relatively low end of the oblique drainage plate, a first incomplete gear and a second incomplete gear with same diameters are arranged on a main shaft of a positive electric motor, three meshed tooth segments are arranged on the second incomplete gear, a guide rod over against a closing plate is arranged on a side plate positioned on the right side, and a liquid collecting tank is also arranged on the right side of the upper end surface of the bottom plate. The automatic feeding and discharging dehydration device of vegetables and fruits has the advantages of simple structure, continuous operation, higher efficiency, lower labor, stable transmission, better dehydration effect and higher practicability.

The invention relates to a stator in an electric motor comprising a plurality of teeth segments forming a stator ring, said teeth segments comprising outer yoke segments and radial support teeth. Connection elements are arranged on the peripheral front sides of the yoke segment and are offset in the direction of the radial outer side.

The invention relates to a universal on-machine non-contact calibration method for eccentric parameters of a milling cutter. The method comprises the following steps of establishing a universal geometrical parameter representing mathematic model of an integral milling cutter and a machine clamped milling cutter; then carrying out quantitative description on the eccentric state of a tool by means of three states such as spin axis deflection, geometrical axis deflection and end edge eccentricity of the tool and seven independent parameters; and carrying out non-contact measurement on a target distance of a cutter tooth segment of the tool mounted on a spindle of a machine tool by using an electrical vortex sensor to obtain variable quantities of actual cutting diameters of cutting points ofdifferent blades on different cutter teeth of the tool at different axial heights so as to calibrate the eccentric parameters (including geometrical axis deflection of side edge, spin axis deflectionof the side edge and end edge eccentricity of the tool) of the tool in a rotating state of the spindle by combining a numerical optimization method. The method is better in universality and accuracy,can calibrate the eccentric state of the tool quickly and accurately on-machine, and is convenient to use in an enterprise machining site.

A turbine rotor blade that includes: an airfoil defined between a pressure face and a suction face; a tip shroud that includes a seal rail projecting from an outboard surface and, formed thereon, a cutter tooth; and a cooling configuration that includes a cooling channel for receiving and directing a coolant through an interior of the rotor blade. The cooling channel may include fluidly connected segments, in which: a supply segment extends radially through the airfoil; a cutter tooth segment is formed within the cutter tooth of the seal rail; and branching segments formed within at least one of the tip shroud and an outboard region of the airfoil. Each of the branching segments may extend between an upstream port, which connects to the cutter tooth segment, and an outlet port, which is formed on a target surface area, so that the branching segment bisects a target interior region.

A drive system (2) tilt adjusts a back rest (10) of a vehicle seat (1). The back rest (10) is held on a seat base (11) by a fitting (12). An output pinion (24), drivable by a drive motor (20), is provided on the seat back side and interacts with a tooth segment (18) arranged rotationally fixed on the base (11). A pivot movement of the back rest (10) can be carried out by the drive motor (20) while the fitting (12) is unlocked. The output pinion (24) can be uncoupled from the drive motor (20) by a coupling (22). A compensation spring (14) acting between the back rest (10) and the base (11) pre-tensions the back rest (10) in the direction of the non-use position. A vehicle seat (1) with the drive system and a method for operating a drive system (2) are also provided.

Pliers for crimping work pieces include a pliers head, a first pivot jaw (4) and a second pivot jaw (3). A common joint (5) pivotally connects the first and second pivot jaw (4, 3). Two dies together form a crimping die (8). A first handle (2) is connected to the first pivot jaw (4). The first handle (2) is divided into at least a first portion (21) and a second portion (22). The first portion (21) is designed as a plate. A second handle (1) is connected to the second pivot jaw (3). The first handle (2) and the second handle (1) are movable with respect to one another and operable to crimp the work piece in a few crimping steps. A locking mechanism (28) includes a tooth segment (29), and it serves to attain a defined closed position of the dies. The tooth segment (29) is designed as one piece with the first portion (21). A stop mechanism (31) includes at least two stops, and it connects the first portion (21) and the second portion (22) in a plurality of different angle positions. The stops are designed as one piece with the first portion (21). A toggle lever drive (27) includes a plurality of support joints and a pressure lever (16). The pressure lever (16) connects the first portion (21) to the second handle (1). The pressure lever (16) is supported by the support joints.

The invention discloses a variable-wall-thickness flexible gear of a harmonic reducer. The variable-wall-thickness flexible gear is integrally formed by a harmonic tooth segment, a fixed-wall-thickness segment, an arc transition segment, a variable-wall-thickness segment and a flange segment. One side of the fixed-wall-thickness segment and one side of the harmonic tooth segment are fixedly connected, and the other side of the fixed-wall-thickness segment is fixedly connected with the inner circle of the variable-wall-thickness segment through the arc transition segment. The outer circle of the variable-wall-thickness segment is fixedly connected with the inner circle of the flange segment. Compared with the prior art, the fatigue stress of the flexible gear during loaded running of the harmonic reducer can be reduced, the risk that fatigue failures happen to the flexible gear can be reduced, the service life of the flexible gear can be prolonged easily, and the variable-wall-thicknessflexible gear has the value of application and popularization.

The invention discloses a device for integrally lowering posterior tooth segments. The device comprises two diastema pads and a casting stent, wherein the two diastema pads are fixed on left and right posterior tooth segments on two sides by adhesives; the casting stent is used for connecting the two diastema pads; a towing hook is arranged on a cheek side of each diastema pad; a rubber chain is suspended on each towing hook; the other end of each rubber chain is suspended on a mini-screw implanted into an infrazygomatic crest. The device has the advantages that the posterior tooth segments can be integrally lowered, few screws are implanted, both left and right posterior tooth segments are integrally pressed, the phenomenon that the left and right posterior tooth segments are uneven can be avoided, and the action force totally comprises three parts which are composed of tension force generated by the rubber chains, occlusal force generated by teeth on upper and lower jaws and pressure generated by the tongue.

A vehicle seat having a drive device for driving a adjustment kinematics of the vehicle seat may have an adjustment arm, and a tensioning device. The drive device may have a pinion which can be rotated about a pinion rotation axis and which is in toothed engagement with a tooth segment of the adjustment arm. The tensioning device pretensions the adjustment arm so that the tooth segment is pretensioned in the direction of the pinion. The tensioning device has at least one sliding element which is in abutment with the adjustment arm. During an actuation of the height adjustment kinematics, the at least one sliding element slides along the adjustment arm. The sliding element is resiliently pretensioned by a resilient element.

The invention relates to a fitting strip for use in a textile processing machine, comprising a plurality of tooth segments (10), each of which comprises multiple teeth (13), each tooth having a tooth head (11) and a tooth base (12). The tooth segments (10) are arranged parallel to one another and are directly or indirectly connected to one another. The fitting strip is characterized in that the tooth segments (10) are connected in a bonded manner. The flat bar according to the invention is characterized in that the fitting strip (8) comprises a plurality of tooth segments (10) which can be fixed to the flat bar by means of a magnetic force.

The invention provides a stator of single phase direct current motor for fan, a single phase direct current motor and a fan. The stator of single phase direct current motor for fan comprises multiple tooth segments each of which comprises tooth block and pole piece which connects in radial inner side of the tooth block, multiple tooth segments being successively arranged into a ring in the circumferential direction, multiple yoke components which can form a ring by connecting end to end in the circumferential direction (wherein multiple yoke segments include multiple first yoke segments which connect correspondingly with multiple tooth segments and second yoke components which are located between two adjacent first yoke components), single phase windings which are separately winded on multiple tooth blocks and contain first terminal and second terminal suitable to connect with external power. Design pursuant to the segmenting structure of stator in the example of the present invention offers convenience in winding and improves efficiency.

The invention discloses a production technology of a die-casting zinc alloy zipper. Two chain belts enter a mould cavity in parallel under the driving of the drawstring device of a die-casting shaping machine; meanwhile, two static wires between two chain belts enter the mould cavity along two lines parallel to the chain belts under the action of the drawstring device; a chain tooth segment provided with the static wires is formed by die assembly, press-shoot, cooling and shaping; after the chain tooth segment is performed die sinking and ejection, the drawstring device quickly drives the chain belt and the static wires to cause subsequently chain and the static wires which are to be performed the die-casting to enter the mould cavity so as to carry out next mould die casting. The cycle is carried out to form a row of chain teeth; after electroplating, a spiral blade is used for cutting the static wires between teeth; and a zipper is assembled by ironing belts. The invention adopts the whole die-casting scheme of the chain teeth and the static wires so as to save the original static wire weaving technology; in addition, after electroplating, the spiral blade is used for cutting the static wires between teeth, thus the product has the advantages of good appearance, flexibility and conduction performance, small color difference after electroplating and firm and even surface coating.