214 results about "Sectional plane" patented technology

The invention relates to a recirculator (30) for a nut (12) of a ball screw mechanism (1), comprising an annular body (32) having a reference axis (300) intended to be aligned with a helical axis of the nut (12), the annular body (32) comprising a bearing surface (36), and a guide structure (34) arranged on the bearing surface (36), the bearing surface is configured to bear a nut (12) against the ball screw mechanism (1) in a bearing direction having an axial component parallel to the reference axis (300), the guide structure is configured to guide the balls in the circulation path opening at a first guide end (62) into a recirculation channel of the nut (12) and at a second guide end (72) onto a raceway (116) defined by a thread of the nut (12), characterized in that the bearing surface (36) lies at least partially in a cross-sectional plane (130) intersecting the recirculation path and perpendicular to the reference axis (300).

The invention provides a method for producing a 3D item by depositing 3D printable material, wherein the 3D printable material comprises core material and 3D printable shell material. The core material is one or more of (i) reflective, (ii) transmissive, (iii) absorbing, and (iv) luminescent for light having a wavelength in the visible wavelength range. The 3D printable shell material is transmissive for the wavelength in the visible wavelength range. A printed core-shell layer has a layer width (W) and a layer height and a first aspect ratio AR1, wherein AR1=W / H and wherein AR1>1. A cross-sectional plane of the core-shell layer comprises the layer width (W) and the layer height, and the core (330) provides a core cross-section having a first dimension (A1), which is the longest dimension of the core cross-section, and a second dimension (A2) perpendicular to the first dimension (A1), providing a second aspect ratio AR2, wherein AR2=A1 / A2, wherein 2=<AR2=<10,000; and wherein AR2 / AR1>=1.5, wherein the core (330) comprises two or more strip-like elements (337), wherein each of the two or more strip-like elements (337) has an element length (LE) individually selected from the range of at least the layer width (W), wherein LE>=*A1, and wherein the spacing distance (S) between two neighboring strip-like elements S=<10*LE.

The invention relates to the technical field of model section filling, in particular to a section filling method and system suitable for a triangular mesh model of a complex structure, and the method comprises the steps: S1, calculating directed line segments, intersecting with a section cutting plane, of a triangular patch of the model, and storing the directed line segments to a list ListE1, directed line segments corresponding to the inner contour and the outer contour of the model are opposite in direction; s2, the coordinates of directed line segments in the ListE1 are mapped to a two-dimensional plane coordinate system where a section cutting plane is located, and a list ListE2 is formed; s3, extracting a profile contour of the model from the list ListE2 and storing the profile contour to a list ListC based on the included angle, spacing and overlapping frequency information of directed line segments in the list ListE2; s4, determining the contour type of each profile contour in the list ListC, and associating the outer contour with the corresponding inner contour based on the contour space relationship; and S5, constructing a triangular mesh based on the associated inner contour and outer contour, and reversely mapping the triangular mesh to a three-dimensional space. According to the invention, automatic profile filling of a surface fitting or structure nesting complex model is realized.

To provide an SiC ingot capable of realizing both of high quality and workability.SOLUTION: This SiC ingot has a step-flow growth region, and a facet. On a cross section passing through a center in a <11-20> direction, an inside boundary between the facet and the step flow growth region has: a first slope inclined in a [-1-120] direction with respect to a crystal growth direction; and a second slope inclined in a [11-20] direction with respect to the crystal growth direction. An inflection point between the first and second slopes is nearer a first end on a Si face side than a center position of ingot length.SELECTED DRAWING: Figure 1

The invention provides a high-speed aircraft online real-time energy management guidance method and system and a medium, and relates to the technical field of high-speed aircraft guidance, and the method comprises the steps: determining a flight sub-stage of an energy management stage; determining an energy corridor, and planning a low-energy nominal longitudinal track based on a Gaussian pseudo-spectral method; when the aircraft enters the energy management section, judging whether the current actual energy exceeds the energy upper boundary of the energy corridor, adding the S turning section if the current actual energy exceeds the energy upper boundary, otherwise, entering the capture section; predicting the to-fly distance of the aircraft, and obtaining an expected energy state by interpolating the energy profile of the longitudinal trajectory; obtaining an attack angle and a speed brake guidance instruction through a longitudinal guidance law according to the deviation between the current energy state and the expected energy state; outputting a heeling angle guidance instruction according to the flight sub-stage through a transverse lateral guidance law; and circularly executing until the aircraft successfully enters the pre-landing section. According to the strategy, online energy management is realized, and the aircraft is ensured to safely enter the landing section.

The present invention relates to a low profile clamp in which one or both contact surfaces of upper and lower circumferential end portions have a non-flat and preferably complementary cross-sectional shape in the width direction of the band material. Thereby, sliding contact of the upper contact surface on the lower contact surface provides a self-centering effect of the band end portions during a band closing action.

The invention relates to the field of aviation, and provides a geometric feature extraction method and detection method of a blade and a related device, and the method comprises the steps: generating a plurality of section planes of the blade along a stacking axis; determining a blade profile of the blade according to each section plane; according to the blade profile, geometrical characteristics of the blade are extracted, and the geometrical characteristics comprise at least one of a chord line, a mean camber line, the maximum thickness, the front edge thickness and the rear edge thickness. Therefore, according to the method, the intercepted blade profile can be quickly determined based on the improved section method, then the geometric features of the blade are obtained through calculation, the efficiency is high, and the calculation result is accurate.

A stabilizer clamp (20) for fastening a stabilizer rod (40) to a vehicle is disclosed. The stabilizer clamp (20) has a receptacle (22) for the stabilizer rod (40), wherein the receptacle (22) is formed as an intermediate space between two legs (24, 24a, 24b) for fastening the stabilizer clamp (20) to the vehicle and a bend (26) connecting the two legs (24, 24a, 24b). The stabilizer clamp (20) is made predominantly of plastic or predominantly of fiber-reinforced plastic. The arch (26) has, in an axially arranged sectional plane relative to the center of gravity of the sectional plane, a flexural rigidity with respect to a curvature about the axial axis of at least 35,000,000 Nmm2, wherein the sectional plane passes through a circle center (28) of the arch or a fictitious radial center of a stabilizer rod for whose diameter the stabilizer clamp (20) is designed.

Provided are soccer ball and soccer training assembly. The soccer ball has sphere and marking area arranged on outer surface of sphere. The marking area includes initial-targeting guide line, ball-placing line, and hitting-point set respectively arranged on the outer surface of sphere. The initial-targeting guide line and the ball-placing line lie in diverse sections, each of which is sectional plane passing through the center of sphere. The hitting-point set includes multiple spaced hitting-datum points arranged on route defining section coinciding with the section which the initial-targeting guide line lies in. A defined horizontal midline section is as another sectional plane passing through the center of sphere, which is parallel to the ground when the section which the initial-targeting guide line lies in and the section which the ball-placing line lies in are both perpendicular to the ground. The multiple hitting-datum points are arranged downwards from the horizontal midline section.

The invention provides a three-dimensional model surface reconstruction method and device, electronic equipment and a storage medium, and relates to the technical field of data processing, after intersection point coordinates of a three-dimensional object and a coordinate axis tangent plane are obtained, the intersection point coordinates are mapped into an integer coordinate point set according to a preset grid step length, then a closed tangent plane contour is formed through a path connection algorithm, and a three-dimensional model surface is reconstructed. And finally, projecting the contour to adjacent tangent planes and dividing uniform triangular surfaces in a projection overlapping area to cover the surface of an object, so that the problems of large data volume and difficulty in compression caused by dependence on double data sources of a point table and a surface table in the prior art and large calculation amount and difficulty in precision adjustment caused by adoption of irregular triangular surfaces can be solved; the technical effects that the data volume is greatly compressed, the operation efficiency is improved, the accuracy is controllable, and meanwhile the network transmission burden and the local hardware analysis pressure are relieved are achieved.

An aircraft featuring at least one lifting rotor, one or more lifting airfoil-shaped wings, and at least one thrust-generating device capable of spinning the wings or the aircraft with the wings around its centre axis, characterised by the aircraft being able to change its orientation during flight by varying the aerodynamic lift of at least one of the airfoil-shaped wings by a device or a combination of devices including but not limited to, aileron or wing tip control surfaces, orwing pitch modulation, or wing profile modulation, or by modulating the lift produced by the lifting rotors around the aircraft centre of rotation, or a combination of said devices, and with a controller for the aerodynamic lift modulating device.

The invention relates to a positioning device (1) for a clamping-type ultrasonic measuring device (10) for positioning at least one ultrasonic transducer (20) or tool (60) on a medium delivery line (50), said positioning device (1) comprising: at least one pair of fastening rails (11) for fastening the at least one ultrasonic transducer (20) or tool (60) on the medium delivery line (50); a fastening track designed to position and fasten at least one of the at least one ultrasonic transducer or to position and fasten a tool for treating an outer surface (52) of the pipeline wherein the fastening track is designed to be aligned parallel to an axis (51) of the pipeline; at least one pair of support means (12) designed to support at least one pair of fastening rails (11), respectively, where the fastening rails have a minimum distance from the outer surface of the pipeline, where the minimum distance is designed to provide a junction (13) between the fastening rails and the pipeline; a gripping device (14) for each of the pair of support devices; wherein each support device comprises at least one pair of contact surfaces (12.1), and wherein the contact surfaces of each pair of contact surfaces lie in a cross-sectional plane (53) of the pipeline when the support device is positioned.

A sole for a running shoe with an elastic midsole (1) is disclosed, wherein the midsole (1) has several channels (41, 42, 43) extending in the transverse direction (Q) of the midsole (1) and arranged one behind the other in the longitudinal direction (L) of the midsole (1), wherein the channels (41, 41', 42, 43) or at least a part of the channels each have a lateral and / or medial opening in the midsole;and - in cross-section along a cross-sectional plane in the longitudinal direction (L) of the midsole (1) and perpendicular to the transverse direction (Q) of the midsole (1) have an anterior boundary and a posterior boundary, as well as a main longitudinal axis (411, 411', 421), along which the channels (41, 41, 42, 43) extend in a slit-like manner from their respective posterior boundary to their respective anterior boundary such that the lateral and / or medial opening of the channels narrows along the main longitudinal axis (411, 411') from the posterior boundary (414, 414') to the anterior boundary (413, 413').

The invention relates to a wing large deformation test load reconstruction and optimization design method, which comprises the following steps of: determining a loading point coordinate and a force line direction after wing deformation, and controlling a coordinate after plane deformation; determining an accumulated load after the theoretical state control profile is deformed according to design input; according to the coordinates of the loading points after deformation, the force line direction and the coordinates of the control profiles after deformation, determining test state load accumulation after deformation of the control profiles of the large-deformation wing; constructing a nonlinear programming optimization model of the loading point load according to the theoretical state cumulative load and the test state cumulative load, and optimizing the deformed loading point load according to the nonlinear programming optimization model to obtain an optimal loading point load; and according to the optimized loading point load, calculating a test state cumulative load, and judging whether the difference between the test state cumulative load and the theoretical state cumulative load is within a preset error range or not, so as to solve the problems of unreal load simulation, low load processing efficiency and poor precision of the large-deformation wing structure.

The present invention provides a sliding switching valve. In the sliding switching valve, by suppressing the deviation of the acting force generated due to the difference in the sliding direction of the valve element and making the pressing load of the valve element against the valve seat portion stable, good operability and sealing performance are obtained. It includes a hollow cylindrical valve body (1) and a valve seat member (4) provided on the valve body (1) and having a plurality of valve ports (4C, 4S, 4E). In addition, it includes a valve element (2) slidably provided inside the valve body (1) in the axial direction (X) and a leaf spring (3) that applies a force to the valve element (2) toward the valve seat member (4). The leaf spring (3) includes: a base portion (31) that is mounted on the top of the valve element (2); an extension portion (32) that extends radially outward from the base portion (31) in a cross-sectional plane intersecting the axial direction (X); and a contact portion (33) that is provided at the front end of the extension portion (32) and can contact the inner peripheral surface of the valve body (1).

The invention relates to a connector pin (10) comprising an electrically conductive elongated flat body (12) and an electrically insulating element (14). At least one protrusion (52) extends from a flat base (50) of a front edge (48) of the elongated flat body (12). The protrusion (52) has a through opening (64). The electrically insulating element (14) covers the front edge (48) and the protrusion (52) so as to fill the through opening (64). The main protrusion (62) can have at least one trapezoidal cross section in a cross sectional plane parallel to the flat base (50) of the front edge (48).

A valve (1) having an axially movable piston (2), wherein the piston (2) is arranged in a valve seat (3), the piston (2) has a peripheral groove (6) with a groove bottom (7), in which a sealing ring (12) is arranged, and a spacing between a piston axis (10) and the groove bottom (7) assumes, at least in an axial sectional plane, at least two different values in an axial region (21) around a contact point (13) between the sealing ring (12) and the groove bottom (7).

The present invention relates to an indexable cutting insert for turning, a complementary tool holder and a tool comprising the cutting insert and the tool holder. The indexable cutting insert comprises: a two-fold rotational symmetry about an axis of symmetry; a top surface, wherein the top surface comprises a substantially rectangular basic shape with two longitudinal edges and two transverse edges, wherein the top surface comprises a first mounting surface and a second mounting surface spaced from the first mounting surface in a direction parallel to the longitudinal edges; a bottom surface, wherein the bottom surface comprises a first abutment surface, a bottom connecting surface and a second abutment surface, wherein the bottom connecting surface connects the first abutment surface and the second abutment surface, and wherein the second abutment surface is spaced from the first abutment surface in a direction parallel to the longitudinal edges, a side surface connecting the top surface and the bottom surface, wherein an intersection of the top surface and the side surface forms first and second cutting edges positioned along the transverse edges of the top surface. Each of the first and second abutment surfaces comprises a surface normal, which surface normal forms an angle of 5 degrees or more with the axis of symmetry such that the first and second abutment surfaces define a convex basic shape of the bottom surface, wherein the angle is measured in a cross-sectional plane parallel to the axis of symmetry and parallel to the longitudinal edges.

The invention relates to a bush bearing with optimized intermediate plates, the elastomer bush bearing comprising a metal core nucleus extending axially along a central longitudinal axis, a outer sleeve concentrically arranged to the core nucleus, an elastomer bearing body arranged between the core nucleus and the outer sleeve and vulcanized thereto, in which bearing body two longitudinal recesses are formed extending in axial direction through the entire length of the bearing body and opposite in a first radial direction, two intermediate plates vulcanized into the bearing body and each comprising at least one circular portion extending in circumferential direction in a cross-sectional plane perpendicular to the central longitudinal axis over at least 135° around a partial center, the bearing body comprising for each intermediate plate an outer elastomer track and an inner elastomer track, the intermediate plates each having two bent portions bent relative to the circular portion. The bent portions of the intermediate plates are bent towards a second radial direction perpendicular to the first radial direction and extend perpendicularly or nearly perpendicularly into the longitudinal recesses of the bearing body.

A non-rotating boring tool for internal turning includes a boring bar having an elongated body, a cutting element with a rake side, a relief surface and a cutting edge, and an electrically controlled vibration actuator for active vibration damping of the boring bar. Moreover, when seen in a cross-sectional plane that is perpendicular to a longitudinal axis of the elongated body and intersecting the cutting edge in a radially outermost point, straight and imaginary first and second reference lines intersect the cutting edge in the radially outermost point with the first reference line extending at an angle of 6° to the relief surface on the outside of the cutting element, and the second reference line extending between the rake side and the relief surface at an angle of 10-40° to the first reference line. The actuator is arranged with its working axis extending in parallel with the second reference line.

A sole for a running shoe including an elastic midsole with a base surface, which delimits the midsole opposite the vertical direction of the midsole, and a surface, which delimits the midsole in the vertical direction. The midsole is divided into a heel region, a central foot region, and a front foot region, and includes multiple channels which run in the transversal direction of the midsole and are arranged one behind the other in the longitudinal direction of the midsole. Each of the channels has an elongated contour in the cross-section along a cross-sectional plane in the longitudinal direction of the midsole and perpendicularly to the transverse direction of the midsole, and each channel has a main longitudinal axis in the cross-section along the cross-sectional plane in the longitudinal direction and perpendicularly to the transversal direction. The acute angle formed between the main longitudinal axis and the base surface of at least one channel arranged in the heel region is greater than the acute angle formed between the base surface and the main longitudinal axis of at least one channel arranged in the central foot region and / or in the front foot region.

A self-locking thread system includes a first threaded member and a second threaded member. The first threaded member includes a first thread. The second threaded member includes a second thread configured to be threaded with the first thread. The first thread has a first thread axis. The first thread includes a locking thread section that is non-circular in a transverse cross-sectional plane perpendicular to the first thread axis.

1. Name of the designed product: profile submarine model. 2. Use of the designed product: toy model. 3. Design points of the designed product: shape. 4. Picture or photo best indicating the design points: front view.

A method for generating a framing geological profile map based on a three-dimensional geological model comprises the steps that the three-dimensional geological model is initialized, and attributes of the three-dimensional geological model are configured; setting an analysis path and framing drawing parameters, encrypting the analysis path according to the framing parameters, and converting the analysis path into an analysis plane; performing intersection analysis on the analysis plane and the three-dimensional geological model to obtain a three-dimensional geological profile; generating a two-dimensional geological section from the three-dimensional geological section projection; and generating a framing geological map based on the two-dimensional geological profile and the framing parameters. According to the method, the drawing efficiency can be greatly improved, and errors caused by manual drawing do not exist in the generated data. The invention further provides support for a broken line section and can provide an automatic framing drawing function based on a broken line. According to the method, the framing operation is planned before spatial analysis, and compared with a method of framing after projection, the calculation and generation efficiency is improved.

An extractable ladder assembly (4) comprising an extractable ladder (8) that is extractable from a stowed configuration to an extracted configuration, the folding ladder (8) comprising at least two uprights (12) connected to each other by a plurality of steps (16), and a hollow containment housing (20) delimiting a containment compartment (24) suitable for containing the extractable ladder (8) in said stowed configuration, the containment housing (20) extending along a main longitudinal direction (X-X) between an access end (28) and a bottom end (32) and comprising at least one pair of longitudinal guides (36) which can allow the extraction and insertion of the extractable ladder (8) with respect to the containment compartment (24) through said access end (28) along an extraction direction parallel to said main longitudinal direction (X-X). The containment housing (20) comprises a central plate (40) and two side plates (44), arranged on opposite sides of a centerline plane (M-M) of the containment housing (20), said side plates (44) supporting the longitudinal guides (36). The central plate (40) has a convex geometry on the side opposite from the containment compartment (24) with respect to a sectional plane perpendicular to the main longitudinal direction (X-X).

The present invention relates to a device (1) for conducting an electrical current, comprising an electrically insulating substrate (3) comprising a first side (3a), a first electrical conductor (4) arranged on the substrate (3) and comprising a first portion (40) protruding from the first side (3a) of the substrate (3), and a metallic layer (2) arranged on the first side (3a) of the substrate (3), wherein said metallic layer (2) comprises a transition region (20) overlapping at least an edge region (400) of said first portion (40) of the first electrical conductor (4). According to the invention, said edge region (400) comprises a beveled or rounded cross-sectional contour in a cross-sectional plane extending orthogonal to the first side (3a) of the substrate (3).

1. Name of the product in this design: Body of an air purifier. 2. Purpose of this design: The product as a whole is an air purifier used to purify air; the part of the product is the main body of the air purifier. 3. The key design features of this product are the shape of the solid lines in the drawing. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Other situations requiring explanation: The dotted lines in the figure represent content for which protection is not sought; the enlarged cross-sectional views of Design 2 omit the internal structure; sections B and C shown in the 3D view of Design 2 are transparent. 6. Specify basic design: Design 1.

Apparatus (80) for closing a folded package (4) without the use of gluing means, comprising means (84) for retaining the package (4) in a folded configuration, the package (4) comprising at least one rear flap (8) and at least one front flap (12), superimposed onto the rear flap (8), on the opposite side of a containment volume (16) delimited by the package (4), wherein the retaining means (84) comprise at least one lateral bracket (88) that interfaces with the front flap (12) and at least one locking device (76) of said rear flap (8), so as to maintain said front (12) and rear (8) flaps locked in a position of mutual contact, at least one pusher (92) having an actuation stroke adapted to move a closing tab (44) of the front flap (12), hinged along a closing line (52), towards the rear flap (8) so as to interlock said closing tab (44) within a notch (40) on the rear flap (8), said pusher (92) being provided with a front protrusion (96) that is forward of a front wall (100). The actuation stroke of the pusher (92) is of the linear type and parallel to a longitudinal extension axis (L-L) of the pusher (92). The front protrusion (96) is provided with a movable partition (108) capable of passing from a closed configuration, wherein it is adhered to said front protrusion (96), to an open configuration, wherein it moves away from the front protrusion (96) so as to protrude transversely with respect to the front protrusion (96), along a sectional plane perpendicular to said longitudinal extension axis (L-L) of the pusher (92).