Abrégé

A securing nut and a screw-nut blank for producing the securing nut are disclosed. The securing nut (20) has a shaped collar (8) on an end surface (3), in one piece with the nut body (1), and an inner end surface (11) running concentrically relative to an internally threaded bore (9) of the nut body (1). Nut (20) is spaced axially (A) from the internally threaded bore (9) and has a securing internal thread (22) offset relative to an internal thread (23) of the internally threaded bore (9). The screw-nut blank (10) has an axially running annular collar (2) to form the shaped collar (8), and has a contour which remains constant in the circumferential direction. In the axial direction (A), the annular collar (2) has a cross-sectional shape which increases as the distance from the end surface (3) increases, in particular a conical cross-sectional shape. The ratio of a thickness (S1) of the annular collar (2) in the transition portion (6) with respect to the end surface (3) to a thickness (S2) of the annular collar (2) at a free end (7), which is used to form the inner end surface (11), is between 0.45 and 0.75, preferably between 0.5 and 0.7.

Classes IPC  ?

• B21K 1/70 - Fabrication d'éléments de machines d'écrous de formes particulières, p. ex. écrous à blocage automatique, écrous à oreilles
• F16B 39/38 - Blocage des vis, boulons ou écrous dans lequel le verrouillage se fait en même temps que le vissage ou le serrage par organes particuliers portés par l'écrou ou le boulon ou par la forme particulière de ceux-ci avec une seconde partie du filetage qui peut être montée élastiquement

Abrégé

A securing nut (20) includes a shaped collar (8) disposed on an end surface (3) of a nut body (1) and integrally connected to the nut body (1), the shaped collar (8) having an inner end surface (11) concentric with an internally threaded hole (9) of the nut body (1), the inner end surface (11) having a distance from the internally threaded hole (9) in an axial direction (A) and having a securing female thread (22) offset from a female thread (23) of the internally threaded hole (9). The shaped collar (8) forms an undercut portion (17) on a radial outer side (16) of the shaped collar (8) adjacent to the end surface (3) in the axial direction (A).

Classes IPC  ?

• F16B 39/38 - Blocage des vis, boulons ou écrous dans lequel le verrouillage se fait en même temps que le vissage ou le serrage par organes particuliers portés par l'écrou ou le boulon ou par la forme particulière de ceux-ci avec une seconde partie du filetage qui peut être montée élastiquement

Abrégé

The invention relates to a locking nut (10) comprising a securing element (18) as an axial securing means for an attachment element (12) of a shaft (14), in particular a support of a gear shaft or a wheel bearing of a universal shaft, wherein the locking nut (10) can be screwed in a screwing direction (D1) onto a threaded shaft section (16), in particular at the end, of the shaft (14) in order to clamp the attachment element (12) axially and along a screw axis (S) on the shaft (14) when in the mounted state, wherein the securing element (18) has an engagement section (22) which engages in a cut-out (24) in the shaft (14) and holds the locking nut (10) in an unscrewing direction (D2) when in the mounted state. The locking nut (10) supports the securing element (18) along the screw axis (S), wherein the locking nut (10) can be rotated on one side in the screwing direction (D1) relative to the securing element (18).

Classes IPC  ?

• F16B 39/24 - Blocage des vis, boulons ou écrous dans lequel le verrouillage se fait en même temps que le vissage ou le serrage par rondelles, rondelles à ressort ou plaques élastiques qui bloquent contre l'objet
• F16B 39/32 - Blocage par cliquet ou languette genre cliquet
• F16B 39/34 - Blocage par pièces déformables insérées ou pièces analogues
• F16B 21/18 - Dispositifs sans filetage pour empêcher le mouvement relatif selon l'axe d'une broche, d'un ergot, d'un arbre ou d'une pièce analogue par rapport à l'organe qui l'entoureFixations à ergots et douilles largables sans filetage à parties séparées par gorges ou encoches pratiquées dans l'axe ou l'arbre et avec bague annulaire formant ressort insérée dans la gorge (circlip) ou autre dispositif élastique de fixation du même genreDispositifs sans filetage pour empêcher le mouvement relatif selon l'axe d'une broche, d'un ergot, d'un arbre ou d'une pièce analogue par rapport à l'organe qui l'entoureFixations à ergots et douilles largables sans filetage à parties séparées par gorges ou encoches pratiquées dans l'axe ou l'arbre Détails
• F16B 31/02 - Assemblages à vis spécialement modifiés en vue de résister à une charge de tractionBoulons de rupture signalant ou limitant la charge de traction
• F16B 43/00 - Rondelles ou dispositifs équivalentsAutres dispositifs de support pour têtes de boulons ou d'écrous

Abrégé

The invention relates to a locknut (20) having a shaped collar (8) which is disposed on an end face (3) of a nut body (1), is integrally bonded to the nut body (1), and has an inner end face (11) that extends concentrically in relation to an internal threaded bore (9) in the nut body (1), is at a distance from the internal threaded bore (9) in the axial direction (A), and has an internal securing thread (22) which is offset in relation to an internal thread (23) of the internal threaded bore (9). According to the invention, an undercut portion (17) is formed by the shaped collar (8), in the axial direction (A) and adjacently to the end face (3), on a radial outer face (16) of the shaped collar (8).

Classes IPC  ?

• F16B 39/38 - Blocage des vis, boulons ou écrous dans lequel le verrouillage se fait en même temps que le vissage ou le serrage par organes particuliers portés par l'écrou ou le boulon ou par la forme particulière de ceux-ci avec une seconde partie du filetage qui peut être montée élastiquement

Abrégé

The invention relates to a method for producing a gland or a gland blank (3), the method comprising a step of producing a blank (3) having a cylindrical shaft (5) formed on a screw head (4), and a blind hole (7) being formed in the blank (3) from an upper side (11) of the screw head (4) facing away from the shaft (5) in a, in particular further, method step, the blind hole (7) extending toward the shaft (5) and forming at least one first section (13), in particular having a polygonal cross section (Q1), preferably for receiving a screw tool. The blind hole (7) is deepened, thus forming at least one second section (14), which borders the first section (13), in a subsequent method step, the second section (14) forming a preferably at least partially continuous cross section (Q2) which is in particular smaller in size than the first cross section (Q1), the shaft (5) being widened in sections, thus forming an undercut (15) at the crossover between the shaft (5) and the screw head (4), in particular by at least indirectly displacing material from at least the second section (14) of the blind hole (7), in the subsequent method step.

Classes IPC  ?

• B21K 1/46 - Fabrication d'éléments de machines de boulons, goujons ou éléments similaires à têtes

Abrégé

The invention relates to a screw-nut blank for producing a securing nut and also to a securing nut (20), wherein the securing nut (20) has a shaped collar (8), which is formed on an end surface (3) of the screw nut, in one piece with the nut body (1), and has an inner end surface (11) which runs concentrically in relation to an internally threaded bore (9) of the nut body (1), is spaced apart in the axial direction (A) from the internally threaded bore (9) and has a securing internal thread (22), which is offset in relation to an internal thread (23) of the internally threaded bore (9), wherein the screw-nut blank (10) has an axially running annular collar (2), which is used to form the shaped collar (8) by a forming process, and wherein the annular collar (2) has a contour which remains constant in the circumferential direction and, in the axial direction (A), has a cross-sectional shape which increases as the distance from the end surface (3) increases, in particular a conical cross-sectional shape, wherein the ratio of a thickness (S1) of the annular collar (2) in the transition portion (6) with respect to the end surface (3) to a thickness (S2) of the annular collar (2) at a free end (7), which is used to form the inner end surface (11), is between 0.45 and 0.75, preferably between 0.5 and 0.7.

Classes IPC  ?

• B21K 1/70 - Fabrication d'éléments de machines d'écrous de formes particulières, p. ex. écrous à blocage automatique, écrous à oreilles
• F16B 39/34 - Blocage par pièces déformables insérées ou pièces analogues
• F16B 39/38 - Blocage des vis, boulons ou écrous dans lequel le verrouillage se fait en même temps que le vissage ou le serrage par organes particuliers portés par l'écrou ou le boulon ou par la forme particulière de ceux-ci avec une seconde partie du filetage qui peut être montée élastiquement

Abrégé

The invention provides a locknut having a nut body having a threaded portion with an internal thread, an adjacent perimetral shoulder and a collar surrounding the shoulder, and having a metal annular washer, the annular washer resting on the shoulder within the collar and the collar being bent inwardly to form an annular groove between the bent collar and the shoulder in which the annular washer is received. An internal thread corresponding to the internal thread of the threaded portion of the nut body is formed at the inner perimeter of the annular washer, and the internal thread of the annular washer is offset axially by a distance with respect to the internal thread of the nut body. For better fixing of the annular washer in the annular groove, a row of projections or recesses is formed on the shoulder or on the annular washer where the annular washer and the shoulder overlap, which projections or recesses project in the axial direction and are arranged distributed around the perimeter of the shoulder or the annular washer. The projections form bearing surfaces, lines or points for the annular washer on the shoulder when the annular washer is placed inside the collar on the shoulder of the nut body. When the collar is deformed to form the annular groove, an axial force is applied to the annular washer, partially deforming the projections or recesses and/or partially pressing them into the opposite surface of the annular washer or the shoulder. As a result, the annular washer is held in the annular groove in a force-locking and form-fitting manner.

Classes IPC  ?

• F16B 39/16 - Blocage des vis, boulons ou écrous dans lequel le verrouillage s'effectue après vissage par écrous de blocage, c.-à-d. contre-écrous le filetage du contre-écrou étant différent de celui de l'écrou de serrage
• F16B 39/14 - Blocage des vis, boulons ou écrous dans lequel le verrouillage s'effectue après vissage par écrous de blocage, c.-à-d. contre-écrous faits d'un matériau en feuille mince ou se présentant comme des rondelles élastiques
• F16B 39/282 - Blocage par dispositifs dont les surfaces de travail ont une forme particulière, p. ex. écrous à encoches ou à dents

Abrégé

The invention relates to a locknut having a nut body (12), which has a threaded portion with inner thread (16), a peripheral shoulder (20) adjoining the latter, and a collar surrounding the shoulder, and having an annular disc (22) made of metal, wherein the annular disc rests on the shoulder inside the collar, and the collar is bent inward in order to form, between the bent collar and the shoulder, an annular groove (28) in which the annular disc is received. An inner thread (16') corresponding to the inner thread of the threaded portion of the nut body is cut into the inner circumference of the annular disc, and the inner thread of the annular disc is offset at an axial distance with respect to the inner thread of the nut body. A row of axially protruding projections (40, 44, 60', 60'') and/or depressions (54) is formed on the shoulder or on the annular disc, at the place where the annular disc and the shoulder overlap each other.

Classes IPC  ?

• F16B 39/14 - Blocage des vis, boulons ou écrous dans lequel le verrouillage s'effectue après vissage par écrous de blocage, c.-à-d. contre-écrous faits d'un matériau en feuille mince ou se présentant comme des rondelles élastiques
• F16B 39/16 - Blocage des vis, boulons ou écrous dans lequel le verrouillage s'effectue après vissage par écrous de blocage, c.-à-d. contre-écrous le filetage du contre-écrou étant différent de celui de l'écrou de serrage
• F16B 39/282 - Blocage par dispositifs dont les surfaces de travail ont une forme particulière, p. ex. écrous à encoches ou à dents

Abrégé

The invention relates to a method for producing a sealing screw or sealing screw blank (3), comprising a method step in which a blank (3) having a cylindrical shank (5) integrally formed on a screw head (4) is created, and wherein a bind hole (7) is formed in the blank (3) from a top side (11), facing away from the shank (5), of the screw head (4) in an, in particular further, method step, said blind hole (7) extending in the direction of the shank (5) and forming at least a first portion (13), in particular having a polygonal cross section (Q1), preferably for receiving a screwdriving tool, wherein, in a subsequent method step, the blind hole (7) is deepened, forming at least a second portion (14) adjoining the first portion (13), wherein the second portion (14) forms a cross section (Q2) that is preferably at least locally constant and is in particular smaller than the first cross section (Q1), wherein, in the subsequent method step, the shank (5) is locally widened, forming an undercut (15) at the transition between the shank (5) and screw head (4), in particular by at least indirect material displacement out of at least the second portion (14) of the blind hole (7).

Classes IPC  ?

• B21H 3/02 - Fabrication de corps hélicoïdaux ou de corps ayant certaines parties de forme hélicoïdale de corps à filetage extérieur
• B21J 5/12 - Formage de profilés sur des surfaces internes ou externes
• B21K 1/46 - Fabrication d'éléments de machines de boulons, goujons ou éléments similaires à têtes
• B21K 1/56 - Fabrication d'éléments de machines d'éléments filetés
• B21K 1/64 - Fabrication d'éléments de machines d'écrous
• F01M 11/04 - Remplissage ou vidange du lubrifiant des "machines" ou moteurs
• F16B 33/00 - Caractéristiques communes aux boulons et aux écrous
• F16B 43/00 - Rondelles ou dispositifs équivalentsAutres dispositifs de support pour têtes de boulons ou d'écrous
• F16L 55/11 - Bouchons

Produits et services

Screws of metal; metal nuts; safety screws of metal; locknuts of metal; metal connectors for profiles or pipes; cold extruded parts of metal; milled parts of metal; turned parts of metal. Bone screws; screws and screw connectors for medical purposes; bone plates; medical instruments; medical implants; orthopaedic fixation device used in orthopaedic transplant and/or implant surgery. Custom manufacture of metal parts, in particular cold extruded parts, milled parts or turned parts. Creation and development of metal parts, in particular cold extruded parts, milled parts or turned parts.

Produits et services

Screws, nuts, external threaded parts, internal threaded parts, screw joints, stud bolts.

Produits et services

Screws of metal; metal nuts; safety screws of metal; locknuts of metal; metal connectors for profiles or pipes; not including fittings or spare parts therefor; cold extruded parts of metal; milled parts of metal; turned parts of metal. Manufacture (contract manufacture) of metal parts, being cold extruded parts, milled parts or turned parts. Development and construction of metal parts being cold extruded parts, milled parts or turned parts.

Produits et services

Screws, Nuts,External threaded parts, internal threaded parts, screw joints, stud bolts.

Produits et services

Screws of metal; Metal nuts; Safety screws of metal; Locknuts of metal; Metal connectors for profiles or pipes; Not including fittings or spare parts therefor; Cold extruded parts of metal; Milled parts of metal; Turned parts of metal. Manufacture (contract manufacture) of metal parts, being cold extruded parts, milled parts or turned parts. Development and construction of metal parts being cold extruded parts, milled parts or turned parts.

Produits et services

Screws of metal; metal nuts; safety screws of metal; locknuts of metal; metal connectors for profiles or pipes; cold extruded parts of metal; milled parts of metal; turned parts of metal. Bone screws; screws and screw connectors for medical purposes; bone plates; medical instruments; Medical implants; fixings. Manufacture (contract manufacture) of metal parts, in particular cold extruded parts, milled parts or turned parts. Development and construction of metal parts, in particular cold extruded parts, milled parts or turned parts.