43 results about "Circular segment" patented technology

A holder with a variable receiving opening for beverage containers with different outer diameters for a vehicle is described, wherein the holder (1) has one or more holding devices (4, 4a, 4b) which have several, in particular lamellar, predominantly non-flexible holding elements (14) or crescent-shaped predominantly non-flexible holding elements (24) or circular segment-shaped predominantly non-flexible holding elements (34), and a radial movement of the several holding elements (14, 24, 34) with respect to the central axis (X) of the receiving opening (3) is effected by a mechanical or electromechanical action, in particular by actuator devices (7, 7a, 7b, 17a, 17b), on the several holding devices (4, 4a, 4b) and / or on one or more bearing devices (8, 8a, 8b), and if necessary,Simultaneously, a sliding movement and / or a pivoting movement and / or a rotational movement of the several holding elements (14, 24, 34) around a central axis (X) of the receiving opening (3) is effected to enlarge or reduce the receiving opening (3).

Three-dimensionally (3D) printed, wearable, electronic sensing articles and methods of manufacture are disclosed. In one example embodiment, the present disclosure provides A wearable article that includes a three-dimensionally printed base, wherein the base of the article comprises a three-dimensionally printed mesh which is formed of an elastomeric polymer composition. The wearable article also includes a microfluidic channel coupled to the mesh, the microfluidic channel having an inlet and an outlet disposed at opposite ends of the channel, wherein the microfluidic channel is curved in a form of a serpentine shape; and wherein the serpentine shape is provided by a plurality of 180-degree semi-circular segments.

The application discloses a kind of modular narrow terminal assembly, top cover assembly and assembly method, it is related to electric core terminal assembly technical field, the narrow terminal assembly is runway shape, including coaxial by inside to outside setting pole, injection molding insulating part, assembly ring;Assembly ring is successively divided from bottom to top into bottom, middle and top, middle is multiple ladder bending structure and is equipped with the plane of set width at bending portion, and top inner side edge is equipped with multiple vertical direction's through type notch, in the linear section of runway shape, waist round notch is used, circular segment adopts circular notch;Injection molding insulating part is formed by injection molding between pole and assembly ring, and injection molding insulating part is passed over assembly ring top and is collected glue in the plane outside in assembly ring middle, while filling the multiple notch of top;Pole is integrally stamped, and pole body is runway shape and the linear section of runway shape constitutes torsion resistance section.The application can realize the narrow terminal assembly assembly of more optimal overcurrent capacity and structural reliability, simpler process.

A trough (1) for a trough ironer (100), comprising a trough plate (10) shaped into a circular segment with a flattening surface (11) that can be brought into contact with the laundry to be treated, and comprising a cover plate (12) on the outer surface (13) of the curved trough plate (10), which is welded to the trough plate (10) over the planar extent of the trough plate (10) by a plurality of spot welds (14) and is deformed by internal high-pressure forming in such a way that a flow space for flow of a heat transfer medium is formed between the trough plate (10) and the deformed cover plate (12), characterized in that the trough plate (10) and the cover plate (12) are made of a heat-resistant structural steel.

Holder, insert or retrofit kit (1) for beverage containers (2) with different outer diameters for a vehicle (19), with a receiving opening (3) for receiving beverage containers (2) and a device for variable - stepwise or stepless adjustment - Adjustment of the receiving opening (3) depending on the outer diameter of a beverage container (2) to be inserted, comprising a holder, insert or retrofit kit (1): - one or more holding devices (4, 4a, 4b) with several - in particular lamellar or crescent-shaped or circular segment-shaped - predominantly non-flexible holding elements (14, 24, 34), and - one or more actuator devices (7, 7a, 7b, 17a, 17b) in operative connection with one or more holding devices (4, 4a, 4b) and / or with one or more bearing devices (8, 8a, 8b) - wherein the one or more holding devices (4, 4a, 4b) and the one or more actuator devices (7, 7a, 7b, 17a, 17b) and / or the one or more bearing devices (8, 8a, 8b) are designed such that a mechanical and / or hydraulic and / or pneumatic and / or electromechanical action on the one or more actuator devices (7, 7a, 7b, 17a, 17b) and / or on the one or more holding devices (4, 4a, 4b) and / or on the one or more bearing devices (8, 8a, 8b) causes a radial movement of the several predominantly non-flexible holding elements (14, 24, 34) with respect to the central axis (X) of the receiving opening (3) to enlarge or reduce the receiving opening (3), particularly The holder, insert, or retrofit kit (1) is designed and / or controllable in such a way that, depending on detected current or imminent acceleration or deceleration forces and / or centrifugal forces acting on the vehicle (19) and / or on the holder, insert, or retrofit kit (1), the receiving opening (3) is automatically reduced in size to lock a beverage container (2) in the receiving opening (3), and / or wherein in particular the one or more holding devices (4, 4a, 4b) and the one or more actuator devices (7, 7a, 7b, 17a, 17b) and the one or more bearing devices (8, 8a, 8b) of the holder, insert or retrofit kit (1) are designed such that when a beverage container (2) is inserted into the receiving opening (3) the receiving opening (3) is automatically reduced in size by means of the one or more holding devices (4, 4a, 4b).

Dispenser (1) for dispensing flowable, for example liquid or pasty masses (2), comprising a reservoir (6) for receiving the mass (2), a dispenser pump (3) preferably of a modular design, the dispenser pump (3) having an inlet and an outlet channel (26) and a pump chamber (4) delimited on the inlet and outlet sides by valves (15, 16), and a headpiece (5), the headpiece (5) having a dispensing nozzle (42), a return device (7) formed by a spring being provided between the headpiece (5) and the reservoir (6), the return device (7) being formed by a plastic spring (8), with a lower spring ring (9) and an upper spring ring (10) being arranged substantially coaxially to each other, a plane (E) spanned by the spring rings (9, 10) extending substantially perpendicular to a longitudinal axis (y) of the plastic spring (8),wherein several intermediate rings (39, 39') extending substantially transversely to the longitudinal axis (y) of the plastic spring (8) are formed over the height (h) of the plastic spring (8), wherein the spring rings (9, 10) and the intermediate rings (39, 39') are further connected to each other by spring struts (11) extending between the intermediate rings (39, 39') and between the spring rings (9, 10) and the intermediate rings (39, 39'), characterized in that two successive intermediate rings (39, 39') in the direction (r) of the longitudinal axis (y) are curved in opposite directions, wherein the spring struts (11) have opposing, circular segment-shaped side contours.

The invention describes an operating device for doors and windows, comprising: a box-like body; a wheel having a first circular segment with a smooth surface and a second circular segment with teeth; a rod slidingly inserted into the box-like body and having a relative end outside the box-like body configured to be connected, in use, to a mobile closing / opening device of a door leaf on a door leaf, the rod having a surface equipped with an operating rack engaging with the second circular segment of the wheel, allowing the sliding of the rod by rotating the wheel, which can obtain, in sequence, a first position and a second open position starting from the closed position of the door leaf; a slider selecting and locking the wheel, which can be stably inserted inside the box-like body through a first through seat made on the box-like body, the slider being positioned radially with respect to the wheel and positioned so as to hinder the rotation of the wheel by abutting against a first tooth of an end portion of the second circular segment and thus limiting the rotation of the wheel only between the closed position and a single open position of the door leaf and vice versa.

The candle cap consists of its base and of an upper part, both cylindrical, joined by a circular segment of lower radius; the upper part has six equidistant cross-shaped cutouts; at the top, the cap has a spherical cover connected thereto by a circular segment.

The invention relates to a print head (10) for a 3D printer (1), comprising a feed zone (11) with a feeder (12) for a starting material (21) with variable viscosity, a plasticizing zone (14) with a heater (15) and an outlet opening (16) for the liquid phase (22) of the starting material (21), and a conveying device (30) for conveying the starting material (21) from the feed zone (11) to the plasticizing zone (14), wherein the conveying device (30) comprises a piston (31) that can be inserted into the feed zone (11), wherein the piston (31) has a first piston section (5) facing the plasticizing zone (14) with a guide surface (9) through which the piston (31) is guided in a recess (7) of the print head (10), wherein the piston (31) is connected by a positive locking connection of the first piston section (5) is secured against radial rotation by the recess (7) of the printhead (10). It is characterized by the fact that the first piston section (5) and the recess (7) of the print head (10) form a cross-sectional area (F), wherein a maximum diameter (d1) of the cross-sectional area (F) is formed by a circle (2) and the cross-sectional area (F) has rotationally symmetric circular segment-shaped recesses (3).

The utility model discloses a wear-resistant casting blank convenient to stack and store, which relates to the technical field of casting blanks, and comprises a first casting blank, a second casting blank, a third casting blank and a fourth casting blank, the second casting blank is located at the bottom of the first casting blank and movably connected with the first casting blank; and the third casting blank is located at the bottom of the second casting blank and movably connected with the second casting blank. According to the utility model, as the tangent planes of the arc-shaped grooves and the arc-shaped convex blocks are of the arc-shaped structures, the outer diameters of the arc-shaped convex blocks are smaller than the inner diameters of the arc-shaped grooves, and the outer heights of the arc-shaped convex blocks are larger than the inner heights of the arc-shaped grooves, a gap can be formed between two adjacent groups of casting blanks by utilizing the height difference; the contact face between every two adjacent casting blanks is an annular line segment, the contact area between the multiple sets of casting blanks is reserved, certain thrust is applied along the smooth arc face, and then the casting blanks can be moved out from the casting blanks stacked and stored below, so that the casting blanks are more convenient to take.

Circular floating buildings, consisting of a pontoon (1) and the building (2), characterized in that the building (2) consists of circular segment-shaped modules (3) which consist of two radially aligned, straight sides (4) and two circular sides (5), one side (5A) having a larger radius and one side (5B) having a smaller radius, and the circular segment-like modules (3) ideally having a floor (6) and a ceiling (7)

In order to improve the cross-section of the laminations of a laminated core of a rotor in such a way that the efficiency is optimized and that production is simplified, a rotor (100) for an electrical machine (200), in particular for an asynchronous machine, is proposed, comprising a laminated core (13) comprising a plurality of laminations (14), each lamination (14) having a sheet thickness, the laminated core (13) comprising at least one groove (15), the groove (15) having a receiving area (16) for receiving a short-circuit bar (17), the laminated core (13) having a cavity (19) separated from the groove (15) in the radially outer direction by a first scattering web (18), the first scattering web (18) being curved, the cavity (19) being closed in the radially outer direction by a second scattering web (20), further providingthat the cavity (19) has circular segment-shaped end regions (22) in a circumferential direction (21) of the laminated core (13).

The invention discloses a thin-wall ceramic bearing disc machining method which comprises the following steps: S1, performing compression molding on ceramic granulation powder to form a molded part; s2, rough machining is conducted on the formed part, the annular segment difference is increased in the area where the thin wall needs to be formed, and a rough machined part is formed; s3, the rough machining part is sintered, and a sintered part is formed; s4, the sintered part is ground, the annular segment difference is removed, and a machined part is formed; and S5, the bottom of the machined part is ground, a thin wall is machined, and a finished part is formed. According to the thin-wall ceramic bearing disc machining method, the structural strength of the thin-wall ceramic bearing disc can be improved, the production qualification rate of products can be increased, the risks of cracking, deformation and edge breakage are reduced, and the machining cost is saved.

Method for producing a stator (12) for an axial flow machine (14) by means of a production device (10), comprising the steps: - Providing at least three first coil units (26), wherein one coil unit (26) is substantially circular segment-shaped; - welding the three first coil units (26) to form at least one first circular segment (20) by means of a welding device (28) of the manufacturing device (10), wherein the welding is carried out on a radially viewed inner side (32) of the first circular segment (20); - Providing at least three second coil units (26), wherein one coil unit (26) is substantially circular segment-shaped; - welding the three second coil units (26) to form at least one second circular segment (22) by means of the welding device (28), wherein the welding is carried out on a radially viewed inner side (32) of the second circular segment (22); and - Arranging the first circle segment (20) and the second circle segment (22) in a holding device of the manufacturing device (10) for the stator (12).

The utility model relates to the technical field of single-pile tools, in particular to a single-pile large-diameter roll-on and roll-off tool which comprises a base, two triangular brackets and two wedge block structures. The two triangular brackets are symmetrically arranged at the top of the base, and the wedge block structures are detachably arranged at the tops of the triangular brackets; the wedge block structure comprises a wedge block bottom plate, a top plate arranged above the wedge block bottom plate and a first connecting plate fixedly connected with the wedge block bottom plate and the top plate, the two sides of the first connecting plate are each provided with a plurality of first reinforcing ribs, and the upper ends and the lower ends of the first reinforcing ribs are fixedly connected with the wedge block bottom plate and the top plate respectively; the top plate comprises a first arc section, a second arc section and a third arc section which are connected in sequence, the second arc section is an arc which is concave inwards, the first arc section and the third arc section are arcs which are convex outwards, and the curvature of the first arc section and the curvature of the third arc section are both larger than the curvature of the second arc section. The large-diameter single pile fixing and transferring device can adapt to fixing and transferring of large-diameter single piles with different diameters.

Sheet (100) for forming a laminated core for a rotor (200) of an electrical machine, namely an asynchronous machine, wherein the sheet (100) has radially extending grooves (10) for receiving short-circuit bars (15), wherein at least one groove (10) has a first, radially inner end (10a) and a second, radially outer end (10b), wherein the sheet (100) has a recess (14) in a region (100a) which is radially further outward than the second end (10b) of the groove (10), wherein the recess (14) is closed at least on one side in the radial direction, wherein the sheet (100) comprises a first web (12), wherein the first web (12) is designed such that the first web (12) closes the recess (14) on one side in the radial direction, that the first web (12) is arranged in the radially outer direction directly adjacent to the second end (10b) of the groove (10), that the sheet (100) has a flat outer surface (100b) at least in a circular segment of the sheet (100) associated with the groove (10), wherein the sheet (100) comprises a second web (13), and wherein the second web (13) is arranged such that a radially outer surface (13c) of the second web (13) forms part of the outer surface (100b), characterized in that the first web (12) is designed with a substantially greater width (12d) in relation to the width (13d) of the second web (13).

Novel endmills are provided. Such endmills have a body with outside diameter (OD), and outer surface, and a longitudinal axis, a plurality of flutes, helical in some embodiments. Flutes include a narrow leading edge land portion with circular segment profile and having flute cutting edge portions along a substantially uniform circumferential location, with an eccentric relief margin rotationally rearward of the narrow leading edge land portions. Face portions are provided with face cutting edge portions, and with a first dish portion adjacent each of the cutting edge portions sloping inwardly and downwardly generally toward a central longitudinal axis at a first dish angle alpha (α). Corner blend portions extend from flute cutting edge portions to the face cutting edge portions. Corner blend portions are provided in a variety of profiles, including an embodiment wherein the profile of the corner blend portions are truncated before the segment of curvature becomes tangential to the face cutting edge portions. In various embodiments, one or more coolant passageways are provided, and in an embodiment, an exit port for coolant is provided at the center of rotation of the end face portion.

The application discloses a kind of complex curved surface structural member electric arc fuse additive manufacturing methods based on equal arc length slice, for maximum inclination angle exceeding 45 °, and the outer wall profile can be enclosed by circular segment ring structure piece, the application proposes equal arc length slice forming strategy, is based on the three-dimensional model of part, in the center line section, extract the outer wall profile envelope curve formed by circular segment fitting, along the outer wall envelope curve, the arc length is equal to the segmentation cutting, at each cutting point, construct a radius line through the segmentation point and the center, make the radius line rotate around the center line of part model, form rotation surface, generate additive manufacturing track with this surface as segmentation surface to the part model layering slice, obtain structural member by electric arc fuse additive manufacturing.The method effectively improves the forming stability and material utilization of this kind of complex parts, and significantly shortens production cycle and reduces cost.

A plastic spring (8) with a lower spring ring (9) and an upper spring ring (10) arranged substantially coaxially to each other, wherein a plane (E) spanned by the spring rings (9, 10) extends substantially perpendicular to a longitudinal axis (y) of the plastic spring (8), and wherein several intermediate rings (39, 39') extending substantially transversely to the longitudinal axis (y) of the plastic spring (8) are formed over the height (h) of the plastic spring (8), and wherein the spring rings (9, 10) and the intermediate rings (39, 39') are further connected to each other by spring legs (11) extending between the intermediate rings (39, 39') and between the spring rings (9, 10) and the intermediate rings (39, 39'), characterized in that two successive intermediate rings (39, 39') in the direction (r) of the longitudinal axis (y) are curved in opposite directions, wherein the spring legs (11) have opposing, circular segment-shaped side contours.

Described is a method for optimizing a synchronous reluctance motor assisted by magnets (1), comprising the arrangement of a stator (2) provided with a number (t) of slots (3), the arrangement of a rotor (4) having an outer cylindrical surface (S.sub.e) of radius (r.sub.e), an inner cylindrical surface (S.sub.I) of radius (r.sub.I), a rotation axis (A) and a number (p) of pole pairs, realisation in the rotor (4) of a number (n) of slots (7) defining flow barriers (Bn) with axial extension for each pole of the motor (1), designed to house magnets (6) and definition of each barrier (B.sub.n) with peripheral profile in the form of a circular segment with convexity facing towards the axis (A) and with concentric radii of curvature (r.sub.nA, r.sub.nB) with common centre (C) arranged along a radial axis (X). The number (n) of barriers (B.sub.n) is greater than or equal to 3.

A gasket retainer that is absent sharp corners, has apertures of reasonable dimensional tolerance, and may be conveniently made by a variety of manufacturing processes. The retainer is made from thin flat springy material that readily returns to form after slight bending. Representative gasket capturing apertures are of smoothly non-convex outline with major dimension sufficiently large to allow passage of a ring shaped gasket turned on edge and minor dimension sufficiently small to engage, on approximately opposite circular segments that each engage along less than one third of a gasket circumference, a cavity or groove on the outside diameter periphery of the gasket turned flat parallel to the retainer material sheet. Fasteners may be retained by similar apertures.

The utility model discloses a prevent DFN or QFN lead frame structure after cutting has metal residue, including frame substrate, and be located on the frame substrate on a plurality of matrix arrangement's lead frame unit, be equipped with first connecting muscle between two rows of lead frame unit of adjacent, be equipped with second connecting muscle between two columns of lead frame unit of adjacent, the intersection of first connecting muscle and second connecting muscle is connected and forms cross -shaped structure, the both sides lateral wall of one end of first connecting muscle close to cross -shaped structure all recessed has first gap, first gap has first inner lateral wall, the both sides lateral wall of one end of second connecting muscle close to cross -shaped structure all recessed has second gap, second gap has second inner lateral wall, first gap and adjacent second gap form the slot of communicating, form the circular segment between first inner lateral wall and adjacent second inner lateral wall, the utility model discloses when cutting, can cut off the metal material of circular segment completely, avoid metal and remain on product.

The invention relates to a method for manufacturing a stator (12) for an axial flux machine (14), comprising the steps: - Providing at least three first coil units (26), wherein one coil unit (26) is substantially circular segment-shaped; welding the three first coil units (26) together to form at least one first circular segment (20), wherein the welding is carried out on a radially considered inner side (32) of the first circular segment (20); providing at least three second coil units (26), wherein one coil unit (26) is substantially circular segment-shaped; - Welding the three second coil units (26) together to form at least one second circular segment (22), wherein the welding is carried out on a radially viewed inner surface (32) of the second circular segment (22); and arranging the first circular segment (20) and the second circular segment (22) in a holding device of the manufacturing apparatus (10) for the stator (12). The invention further relates to a stator (12), an axial flux machine (14) and a manufacturing apparatus (10).

The invention discloses a stator production device with a stator circle splicing and welding mechanism, which comprises a rack, and the rack is provided with an incoming material conveyor, a circle splicing mechanism and a welding mechanism; the circle splicing mechanism comprises a circle splicing frame, a forming sleeve, a plurality of circle splicing bodies, a supporting plate, a circle splicing driving device and a material ejecting device. The circle splicing bodies are hinged to each other to form a chain type structure. The driving end of the circle splicing driving device comprises a connecting frame and two swing arms, and the two swing arms driven by the connecting frame are in linkage with a chain type structure to be outwards flattened on the supporting plate or inwards wrapped on the forming sleeve. And the carrying assembly comprises a first carrying manipulator and a second carrying manipulator. According to the stator production device with the stator circle splicing and welding mechanism, automatic operation from positioning, circle splicing to welding of each stator winding is achieved, the time and workload of manual operation are remarkably reduced, and therefore the production efficiency and the product quality are improved.

The present application belongs to the field of aircraft rotor technology, and specifically relates to a method for generating a thin arc-type rotor airfoil suitable for low Reynolds number flow fields, wherein the thin arc-type rotor airfoil comprises: an upper arc line and a lower arc line; the upper arc line comprises an upper arc line leading edge segment, an upper arc line circular segment, an upper arc line transition segment, and an upper arc line trailing edge segment; the lower arc line comprises a lower arc line leading edge segment, a lower arc line circular segment, and a lower arc line trailing edge segment; the generation method comprises the following steps: one: drawing a reference arc to obtain upper and lower main arcs; two: drawing the trailing edge segment of the lower arc line of the airfoil; three: drawing the trailing edge segment of the upper arc line of the airfoil; and four: obtaining the leading edge segment of the upper arc line and the leading edge segment of the lower arc line of the airfoil. The present application solves the problem of the existing low Reynolds number thin arc-type airfoil having an unsmooth shape, can meet the requirements of high lift and good stall characteristics of the rotor airfoil, and significantly increases the lift coefficient and lift-to-drag ratio in a low Reynolds number environment.

Flexible surface (1) for protecting the palm of the hand against stress caused by objects grasped by a hand, whereby the surface (1) approximates the contour (3) of the palm of a hand for which the surface is designed, the surface (1) extends beyond the contour (3) of the palm of a hand for which the surface is designed, the surface (1) has recesses (10, 11, 12, 13, 14, 15) for the passage of the wrist, fingers and thumb of a hand for which the surface is designed, wherein the six recesses (10, 11, 12, 13, 14, 15) are arranged in the surface (1) such that, in the tightened state, in which the wrist, fingers and thumb of a hand for which the surface is designed are guided into the associated recesses, at least the palm of the hand is covered by the surface in the area spanned between the recesses (10, 11, 12, 13, 14, 15), characterized in that the surface, with respect to the hand for which the surface is designed, extends laterally in the region of the edge of the hand over the contour of the palm, in particular as a lateral bulge (19), preferably convex, arcuate or as a circular segment.