FR2601731A1 - Rapid-tightening releasable nut - Google Patents
Rapid-tightening releasable nut Download PDFInfo
- Publication number
- FR2601731A1 FR2601731A1 FR8610717A FR8610717A FR2601731A1 FR 2601731 A1 FR2601731 A1 FR 2601731A1 FR 8610717 A FR8610717 A FR 8610717A FR 8610717 A FR8610717 A FR 8610717A FR 2601731 A1 FR2601731 A1 FR 2601731A1
- Authority
- FR
- France
- Prior art keywords
- sleeve
- sheath
- nut
- rod
- quick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/12—Nuts or like thread-engaging members with thread-engaging surfaces formed by inserted coil-springs, discs, or the like; Independent pieces of wound wire used as nuts; Threaded inserts for holes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/10—Arrangements for positively actuating jaws using screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/10—Arrangements for positively actuating jaws using screws
- B25B5/104—Arrangements for positively actuating jaws using screws with one screw and one clamping lever and one fulcrum element
- B25B5/106—Arrangements for positively actuating jaws using screws with one screw and one clamping lever and one fulcrum element with one end of the lever resting on an additional block and the screw being positioned between the ends of the lever
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/08—Quickly-detachable or mountable nuts, e.g. consisting of two or more parts; Nuts movable along the bolt after tilting the nut
- F16B37/0807—Nuts engaged from the end of the bolt, e.g. axially slidable nuts
- F16B37/0835—Nuts engaged from the end of the bolt, e.g. axially slidable nuts with balls engaging threads or grooves on the shaft of the bolt
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/2025—Screw mechanisms with means to disengage the nut or screw from their counterpart; Means for connecting screw and nut for stopping reciprocating movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
Description
L'invention a pour objet un écrou débrayable à serrage rapide. The invention relates to a disengageable nut with rapid clamping.
Lorsqu'on veut brider une pièce, selon un exemple non limitatif, on doit procéder au positionnement de l'écrou sur la tige filetée en réglant tout d'abord sa position en fonction de la distance d'écartement par rapport au plan d'appui de référen- ce. On descend ainsi l'écrou en agissant manuellement ou par une clé, puis on effectue le serrage par des moyens appropriés. En pratique le temps de réglage et de mise en position de l'écrou sur la tige est long, peu pratique, et entraine de nombreuses manipulations. When one wants to clamp a part, according to a non-limiting example, one must proceed to the positioning of the nut on the threaded rod by first adjusting its position according to the distance of distance from the support plane reference. The nut is thus lowered by acting manually or by a key, then the tightening is effected by appropriate means. In practice the adjustment and setting time of the nut on the rod is long, impractical, and leads to many manipulations.
Le but recherché selon l'invention était de remédier à ces inconvénients et de proposer un dispositif simple, facile å mettre en oeuvre et réduisant de manière notable le temps de mise en position de l'écrou par rapport a la pièce a serrer avant le serrage définitif de celle-ci. The aim of the invention was to overcome these drawbacks and to propose a simple device that is easy to implement and significantly reduces the time required to position the nut relative to the part to be clamped before tightening. definitive of it.
Selon une première caractéristique, l'écrou est caractérisé en ce qu'il comprend une douille extérieure s'ajustant et coopérant avec un fourreau engagé sur la tige filetée, ladite douille et ledit fourreau pouvant se déplacer le long de la tige par action de rotation normale, un moyen assurant leur liaison et verrouillage sur la tige, ladite douille étant déplaçable le long du fourreau à l'encontre d'un moyen élastique de rappel autorisant le déverrouillage dudit moyen de liaison par rapport a ladite tige et le déplacement instantané en avance rapide de l'ensemble fourreau-douille vers la zone d'appui d'une pièce à serrer ; le serrage définitif de l'écrou sur la pièce s'effectuant après relachement de la douille par rapport au fourreau et solidarisation a nouveau de l'ensemble sur la tige filetée. According to a first characteristic, the nut is characterized in that it comprises an outer sleeve fitting and cooperating with a sleeve engaged on the threaded rod, said sleeve and said sleeve being able to move along the rod by rotation action normal, a means ensuring their connection and locking on the rod, said sleeve being movable along the sleeve against an elastic return means allowing the unlocking of said connecting means relative to said rod and the instantaneous movement in advance fast of the sleeve-sleeve assembly towards the support zone of a part to be clamped; the final tightening of the nut on the part taking place after release of the sleeve relative to the sleeve and securing all of the assembly on the threaded rod.
Ces caractéristiques et d'autres encore ressortiront bien de la suite de la description. These and other characteristics will be apparent from the rest of the description.
Pour fixer l'objet de l'invention illustré d'une manitre non limitative aux figures des dessins où :
- La figure 1 est une vue en perspective de l'écrou débrayable selon l'invention selon une première variante d'uti lisation sur les tables de machines outils.To fix the object of the invention shown in a non-limiting manner to the figures of the drawings in which:
- Figure 1 is a perspective view of the disengageable nut according to the invention according to a first variant of use on the tables of machine tools.
- La figure 2 est une vue en coupe longitudinale de l'écrou débrayable selon la ligne A-A de la figure 1. - Figure 2 is a longitudinal sectional view of the disengageable nut along the line A-A of Figure 1.
- Les figures 3 et 4 sont des vues partielles a grande échelle illustrant le fonctionnement de l'écrou selon l'invention. - Figures 3 and 4 are partial views on a large scale illustrating the operation of the nut according to the invention.
fifin d'expliciter I'intért de l'invention et l'une possible de ses applications, on a illustré à la figure l son utilisation pour le bridage des pièces (P) sur une table de machine outil (T). L'écrou débrayable est ainsi disposé entre la pièce et une cale (c) de hauteur appropriée sur lesquelles prend appui une pièce intermédiaire horizontale constituant I'entretoise (E > support de serrage de l'écrou.Ladite entretoise support présente par exemple dans son épaisseur une lumière permettant l'introduction de la tige filetée (1} associée a l'écrou (2) Dans l'exemple de réalisation, l'extrémité inférieure (2.1) de la tige filetée est solidarisée a un bloc (3) étagé pénétrant dans la rainure profilée en T de la table de la mathine outil. In order to explain the interest of the invention and one possible application thereof, FIG. 1 illustrates its use for clamping parts (P) on a machine tool table (T). The disengageable nut is thus disposed between the piece and a shim (c) of appropriate height on which bears a horizontal intermediate piece constituting the spacer (E> nut clamping bracket.Ladite spacer support present for example in its thickness a light allowing the introduction of the threaded rod (1) associated with the nut (2) In the exemplary embodiment, the lower end (2.1) of the threaded rod is secured to a penetrating step block (3) in the T-shaped groove of the table of the mathine tool.
Selon l'invention l'écrou (2) dbbrayable comprend un fourreau (4) formant bague de grande longueur s'engageant sur la tige filetée. Le fourreau (4) est agencé a sa partie inférieure avec une bordure (4.1) périphérique de plus grand diamètre constituant ainsi sur sa face supérieure (4.2) une portée d'appui å un moyen élastique de rappel (5) du type ressort engagé autour du fourreau. According to the invention the nut (2) dbbrayable comprises a sleeve (4) forming a long ring engaging on the threaded rod. The sleeve (4) is arranged at its lower part with a circumferential edge (4.1) of larger diameter thus constituting on its upper face (4.2) a bearing surface to an elastic return means (5) of the spring type engaged around of the sheath.
Le fourreau présente en outre a une certaine distance de ladite face supérieure (4.2) une pluralité d'ouvertures ou de trous (4.3) disposés dans un plan en hélice par rapport au plan transversal horizontal du fourreau, et correspondant au pas de la tige filetée (1). Ces ouvertures permettent le positionnement d'un moyen de liaison et de verrouillage de ensemble douille fourreau sur la tige fivantageusement, ce moyen est constitué par des billes (6) qui viennent ainsi rouler dans la gorge constituant le chemin de roulement de la tige filetée (l). Il est prévu de préférence et non limitativement le positionnement de 6 billes. The sleeve furthermore has at a certain distance from said upper face (4.2) a plurality of openings or holes (4.3) arranged in a helical plane with respect to the horizontal transverse plane of the sleeve, and corresponding to the pitch of the threaded rod. (1). These openings allow the positioning of a connecting and locking means bush sleeve assembly on the rod fivantageusement, this means is constituted by balls (6) which are thus rolled in the groove constituting the raceway of the threaded rod ( l). The positioning of 6 balls is preferably and not limited.
Le maintien des billes est assuré par une douille ex térieure (7) stemboitant autour du fourreau. Plus particulibre- ment cette douille présente extérieurement une surface moletée (7.1) pour faciliter sa préhension. Intérieurement ladite douille est agencée avec plusieurs épaulements cylindriques de section différente. La douille comprend ainsi dans sa partie inte- rieure médiane une portée (7.2) venant sensiblement très près du fourreau en étant susceptible d'obturer la pluralité de trous (4.3) formés dans ledit fourreau, et ainsi maintenir engagées les billes dans leur logement ou gorge de la tige filetée.La partie supérieure (7.3) interne de la douille présente une section évidée avec une rampe (7.4) permettant l'échappement des billes (6) lorsque la bague n'obture plus les ouvertures (4.3) précitées. La partie inférieure de la bague est agencée avec un épaulement (7.5) définissant une chambre intérieure de logement du moyen de rappel (5) précité. Celui-ci vient ainsi en appui contre la face (7.6) de la douille. Il y a lieu de préciser en outre que ladite douille vient en recouvrement partiel de la portée cylindrique (4.1) de grande section du fourreau. The balls are held by an outer sleeve (7) stembounding around the sheath. More particularly, this sleeve externally has a knurled surface (7.1) to facilitate its grip. Internally said sleeve is arranged with a plurality of cylindrical shoulders of different section. The sleeve thus comprises in its median inner part a bearing surface (7.2) coming substantially very close to the sleeve being able to close off the plurality of holes (4.3) formed in said sleeve, and thus keep engaged the balls in their housing or throat of the threaded rod.The upper portion (7.3) of the inner sleeve has a recessed section with a ramp (7.4) allowing the escape of the balls (6) when the ring no longer obturates the openings (4.3) above. The lower part of the ring is arranged with a shoulder (7.5) defining an inner chamber housing the biasing means (5) above. The latter thus bears against the face (7.6) of the socket. It should be further specified that said sleeve partially covers the cylindrical surface (4.1) of large section of the sheath.
Pour compléter le montage de l'ensemble, il est prévu un circlips (8) dans la partie supérieure du fourreau, engagée dans une gorge (4.4) appropriée, le circlips constituant le moyen de butée supérieure de la douille (7). Les figures 3 et 4 sont très explicites pour illustrer le fonctionnement de l'écrou débrayable selon l'invention. En position normale illustrée figure 3, la douille (7) maintient les billes (6) engagées dans la gorge en hélice de la tige filetée. To complete the assembly of the assembly, there is provided a circlip (8) in the upper part of the sleeve, engaged in a groove (4.4), the circlips constituting the upper stop means of the sleeve (7). Figures 3 and 4 are very explicit to illustrate the operation of the disengageable nut according to the invention. In the normal position shown in FIG. 3, the sleeve (7) holds the balls (6) engaged in the helical groove of the threaded rod.
L'opérateur peut ainsi a volonté faire monter ou descendre l'écrou le long de la tige. Si l'écrou se trouve à une distance éloignée de la position qu'il devrait avoir sur la tige pour le serrage d'une pièce, l'opérateur peut alors effectuer une approche rapide en agissant sur la douille extérieure (7), selon la flèche F. Celle-ci est donc déplacée à l'encontre du ressort, libérant ainsi les billes (6) qui échappent de la tige filetée. On peut ainsi descendre l'écrou d'une distance appropriée pour venir sensiblement en contact avec la pièce à serrer. The operator can thus will to raise or lower the nut along the rod. If the nut is a distance away from the position it should have on the rod for clamping a workpiece, the operator can then perform a quick approach by acting on the outer sleeve (7), according to the arrow F. This is moved against the spring, thus releasing the balls (6) escaping from the threaded rod. It is thus possible to lower the nut a suitable distance to come into substantially contact with the workpiece to be clamped.
L'opérateur ensuite relache la douille qui reprend sa position initiale, les billes pénétrant à nouveau dans leur logement.The operator then releases the socket which returns to its original position, the balls penetrating into their housing again.
Puis l'opérateur effectue le serrage classique en tournant radialement l'écrou.Then the operator performs the conventional tightening by turning the nut radially.
Le gain de temps est ainsi très intéressant. les manipulations de l'opérateur sur la table de la machine outil dans l'exemple illustré sont réduites. Le déserrage s'effectue en sens inverse, l'opérateur pouvant ensuite faire remonter la bague en haut de la tige filetée par l'intermédiaire des billes qui remontent également le pas de l'hélice sur ladite tige. The saving of time is thus very interesting. the manipulations of the operator on the table of the machine tool in the illustrated example are reduced. The loosening is done in the opposite direction, the operator can then raise the ring at the top of the threaded rod through the balls which also lift the pitch of the helix on said rod.
Selon une variante non illustrée, on pouvait prévoir une réversibilité de fonctionnement de l'écroudébrayable dans les deux sens
Les avantages ressortent bien de l'invention. On souligne la simplicité de réalisation de cet écrou et ses multiples applications. According to a variant not illustrated, it was possible to provide reversibility of operation of the crushable in both directions
The advantages are apparent from the invention. It highlights the simplicity of realization of this nut and its multiple applications.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8610717A FR2601731A1 (en) | 1986-07-15 | 1986-07-15 | Rapid-tightening releasable nut |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8610717A FR2601731A1 (en) | 1986-07-15 | 1986-07-15 | Rapid-tightening releasable nut |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2601731A1 true FR2601731A1 (en) | 1988-01-22 |
Family
ID=9337685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8610717A Withdrawn FR2601731A1 (en) | 1986-07-15 | 1986-07-15 | Rapid-tightening releasable nut |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2601731A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991005182A1 (en) * | 1989-09-26 | 1991-04-18 | Jack Uhlmann | Device in spindles |
WO1992001878A1 (en) * | 1990-07-16 | 1992-02-06 | Jack Uhlmann | A method and a device in spindles |
EP0569775A1 (en) * | 1992-05-07 | 1993-11-18 | A RÖMHELD GmbH & CO KG | Spindle drive with quick release drive spindle |
EP0770034A1 (en) * | 1994-07-18 | 1997-05-02 | Wagner Spray Tech Corporation | Powered caulking gun |
WO1999034245A1 (en) * | 1997-12-23 | 1999-07-08 | Leica Mikrosysteme Aktiengesellschaft | Device for displacing the stage of a measuring microscope |
CN103867674A (en) * | 2012-12-17 | 2014-06-18 | 江苏品德机电科技有限公司 | Ball screw |
CN104930147A (en) * | 2015-07-13 | 2015-09-23 | 洪劲松 | Ball screw releasing-engaging transmission and resetting device |
CN110355058A (en) * | 2018-04-11 | 2019-10-22 | 何炳梓 | Glue rifle driving device |
CN113211154A (en) * | 2021-05-21 | 2021-08-06 | 江苏建筑职业技术学院 | Automatic mechanical clamp for workpiece overturning and convenient for rapidly positioning workpiece position |
US20230108292A1 (en) * | 2021-10-04 | 2023-04-06 | Airbus Operations Gmbh | Threaded fastener for a fastening element, fastening rail for an aircraft cabin, and aircraft provided therewith |
-
1986
- 1986-07-15 FR FR8610717A patent/FR2601731A1/en not_active Withdrawn
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991005182A1 (en) * | 1989-09-26 | 1991-04-18 | Jack Uhlmann | Device in spindles |
WO1992001878A1 (en) * | 1990-07-16 | 1992-02-06 | Jack Uhlmann | A method and a device in spindles |
US5426989A (en) * | 1990-07-16 | 1995-06-27 | Uhlmann; Jack | Method and a device in spindles |
EP0569775A1 (en) * | 1992-05-07 | 1993-11-18 | A RÖMHELD GmbH & CO KG | Spindle drive with quick release drive spindle |
EP0770034A1 (en) * | 1994-07-18 | 1997-05-02 | Wagner Spray Tech Corporation | Powered caulking gun |
EP0770034A4 (en) * | 1994-07-18 | 1998-09-02 | Wagner Spray Tech Corp | Powered caulking gun |
WO1999034245A1 (en) * | 1997-12-23 | 1999-07-08 | Leica Mikrosysteme Aktiengesellschaft | Device for displacing the stage of a measuring microscope |
CN103867674A (en) * | 2012-12-17 | 2014-06-18 | 江苏品德机电科技有限公司 | Ball screw |
CN104930147A (en) * | 2015-07-13 | 2015-09-23 | 洪劲松 | Ball screw releasing-engaging transmission and resetting device |
CN110355058A (en) * | 2018-04-11 | 2019-10-22 | 何炳梓 | Glue rifle driving device |
CN113211154A (en) * | 2021-05-21 | 2021-08-06 | 江苏建筑职业技术学院 | Automatic mechanical clamp for workpiece overturning and convenient for rapidly positioning workpiece position |
CN113211154B (en) * | 2021-05-21 | 2022-06-21 | 江苏建筑职业技术学院 | Automatic mechanical clamp for workpiece overturning and convenient for rapidly positioning workpiece position |
US20230108292A1 (en) * | 2021-10-04 | 2023-04-06 | Airbus Operations Gmbh | Threaded fastener for a fastening element, fastening rail for an aircraft cabin, and aircraft provided therewith |
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