FR2860272A1 - Fastener for end of fixed machinery shaft, e.g. of conveyor roller, in T-section recess has elastic clamp gripping shaft end and held in recess under tension - Google Patents
Fastener for end of fixed machinery shaft, e.g. of conveyor roller, in T-section recess has elastic clamp gripping shaft end and held in recess under tension Download PDFInfo
- Publication number
- FR2860272A1 FR2860272A1 FR0311234A FR0311234A FR2860272A1 FR 2860272 A1 FR2860272 A1 FR 2860272A1 FR 0311234 A FR0311234 A FR 0311234A FR 0311234 A FR0311234 A FR 0311234A FR 2860272 A1 FR2860272 A1 FR 2860272A1
- Authority
- FR
- France
- Prior art keywords
- shaft
- clamp
- groove
- slot
- connection according
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 229910001369 Brass Inorganic materials 0.000 claims abstract description 3
- 229910000906 Bronze Inorganic materials 0.000 claims abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000010951 brass Substances 0.000 claims abstract description 3
- 239000010974 bronze Substances 0.000 claims abstract description 3
- 239000010949 copper Substances 0.000 claims abstract description 3
- 229910052802 copper Inorganic materials 0.000 claims abstract description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 3
- 239000004760 aramid Substances 0.000 claims description 2
- 229920003235 aromatic polyamide Polymers 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 229920006397 acrylic thermoplastic Polymers 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 239000003365 glass fiber Substances 0.000 claims 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 claims 1
- 229910000639 Spring steel Inorganic materials 0.000 abstract description 3
- 239000004411 aluminium Substances 0.000 abstract 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- -1 metallic Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
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
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/04—Clamping or clipping connections
- F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship
- F16B7/0446—Clamping or clipping connections for rods or tubes being in angled relationship for tubes using the innerside thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
Description
L'invention concerne une liaison (fig. 3) entre l'arbre (1) d'un élémentThe invention relates to a connection (FIG 3) between the shaft (1) of an element
de machine (2), notamment d'un rouleau de convoyeur entraîné ou non ou d'un tambour moteur dans une rainure en T (5). Il est évident que pour un fonctionnement doux et silencieux surtout avec un tambour motorisé, une telle machine (2), in particular a conveyor roller driven or not or a motor drum in a T-slot (5). It is obvious that for a smooth and silent operation especially with a motorized drum, such a
liaison doit être exempte de jeu radial, axial et rotatif. Des solutions courantes (Fig. 1) telles que l'immobilisation de l'arbre (1) entre deux écrous (40, 41) serrés par des vis (42, 43) contre le fond (45) de la rainure en T (5) sont guère satisfaisantes car les tolérances de fabrication ne permettent que rarement une élimination du jeu; en plus, cette solution exige une rainure profonde pouvant résister à la pression des vis, donc naturellement lourde, onéreuse et encombrante. The connection must be free from radial, axial and rotary play. Common solutions (Fig. 1) such as immobilizing the shaft (1) between two nuts (40, 41) tightened by screws (42, 43) against the bottom (45) of the T-slot (5). ) are hardly satisfactory because the manufacturing tolerances rarely allow the elimination of play; in addition, this solution requires a deep groove that can withstand the pressure of the screws, so naturally heavy, expensive and bulky.
La présente invention, détaillée dans la suite, proposé une solution simple et efficace à ce problème: Fig. (en 2 élévations) : L'arbre (1) ne repose pas ou uniquement sur un flanc de la rainure en T (5) ou dans un éventuel perçage (30, Fig. 4, 5) dans la paroi au fond de la rainure en T (5), mais est serré radialement par une pince élastique (6) ici sensiblement en forme de W. Les 2 extrémités de cette pince (6) prennent appui (13, 14) à l'intérieur et sur la même face de la rainure en T (5), le contre appui (31) est constitué soit par l'arbre (1) même (Fig. 5) qui de son côté repose sur un flanc de la rainure en T (5) et/ou dans un perçage (30) au fond de la rainure en T (5), soit par les parties inférieures (32, 33) de la pince élastique (6) en forme de W (Fig. 6). Sous l'influence des forces exercées par ces 3 points d'appui, la pince élastique (6) se déforme au niveau de la zone de déformation (34) et se referme radialement sur l'arbre (1). La présence de 3 points d'appui plus un serrage radial sous précontrainte élimine donc tout jeu radial, axial et rotatif. La réalisation de la pince en tôle ou en fil d'acier de ressort permet de réduire la profondeur intérieure de la rainure à l'épaisseur de cette tôle ou ce fil, les forces de serrage modestes comparées à la précharge d'une vis (42, 43) 30 permettant de sensiblement alléger les parois de la rainure en T (5). The present invention, detailed in the following, proposed a simple and effective solution to this problem: FIG. (in 2 elevations): The shaft (1) does not rest or only on one side of the T-slot (5) or in any drilling (30, Fig. 4, 5) in the wall at the bottom of the groove T (5), but is clamped radially by an elastic clamp (6) here substantially W-shaped. The two ends of this clamp (6) bear (13, 14) on the inside and on the same face of the T-groove (5), the counter-support (31) consists either of the shaft (1) itself (Fig. 5) which on its side rests on a side of the T-groove (5) and / or a bore (30) at the bottom of the T-slot (5), or by the lower portions (32, 33) of the W-shaped resilient clip (6) (Fig. 6). Under the influence of the forces exerted by these 3 points of support, the elastic clip (6) deforms at the level of the deformation zone (34) and closes radially on the shaft (1). The presence of 3 points of support plus a radial clamping under prestressing thus eliminates any radial, axial and rotary play. The realization of the sheet metal or spring steel wire clamp makes it possible to reduce the internal depth of the groove to the thickness of this sheet or wire, the modest clamping forces compared to the preloading of a screw (42). , 43) for substantially lightening the walls of the T-groove (5).
Afin de faciliter l'opération de montage, une extrémité (23) de la pince élastique (6) peut être cintrée vers l'extérieur de la rainure en T (5) (Fig. 6, 7) pour pouvoir librement glisser la pince élastique (6) en état détendu dans la rainure en T (5). Pour le serrage, après avoir introduit l'arbre (1) dans l'ouverture (8) de la pince (6), il suffit de basculer l'extrémité cintrée (23) de l'extérieur vers l'intérieur de la rainure en T (5), par exemple à l'aide d'un petit tournevis (35). Pour le démontage, on introduit le petit tournevis (35) dans la fente (36) entre l'extrémité cintrée (23) de la pince (6) et le talon (37) de la rainure en T (5) et on le tourne autour de son axe (35b) pour soulever la partie verrouillée (38) de l'extrémité (23) au-dessus du talon (37) de la rainure en T (5) où il se- dégage immédiatement de l'intérieur de la rainure sous l'effet de la précontrainte due au cintrage. In order to facilitate the mounting operation, one end (23) of the resilient clip (6) can be bent outwardly from the T-slot (5) (Fig. 6, 7) to allow the elastic clip to slide freely. (6) in relaxed state in the T-slot (5). For tightening, after having introduced the shaft (1) into the opening (8) of the clamp (6), it is sufficient to tilt the curved end (23) from the outside towards the inside of the groove. T (5), for example using a small screwdriver (35). For disassembly, the small screwdriver (35) is inserted into the slot (36) between the curved end (23) of the clamp (6) and the heel (37) of the T-slot (5) and is rotated around its axis (35b) to lift the locked portion (38) from the end (23) above the heel (37) of the T-slot (5) where it immediately disengages from the inside of the groove under the effect of prestress due to bending.
Fig. 6, 7, 8: En cas de tolérance élevée des cotes de l'arbre (1) et/ou de l'ouverture (8) dans la pince élastique (6), la course de serrage peut être augmentée en éloignant la zone de déformation (25) de l'axe (26) de l'arbre (1) en apportant une ou plusieurs encoches (24) à l'ouverture (8) au niveau de la zone de déformation (34, 25). Fig. 6, 7, 8: If the dimensions of the shaft (1) and / or the opening (8) in the spring clip (6) are too high, the clamping stroke can be increased by moving the distance deforming (25) the axis (26) of the shaft (1) by providing one or more notches (24) to the opening (8) at the deformation zone (34, 25).
Fig. 6: montre une variante en forme de U de la pince élastique (6) dont l'avantage est essentiellement le très faible encombrement dans le sens de la longueur de la rainure en T (5). Cette pince doit toujours être introduite dans la rainure en T (5) par son extrémité et être glissée à sa place. Fig. 6 shows a U-shaped variant of the resilient clamp (6) whose advantage is essentially the very small size in the length direction of the T-slot (5). This clamp must always be inserted into the T-slot (5) at its end and slid in its place.
Fig. 8 et 9: montrent une variante de la pince élastique (6) en forme de U précédemment décrite qui peut être introduite dans la rainure à tout endroit. En effet, cette pince (6) est réduite au niveau de sa partie médiane à une largeur (39) légèrement inférieure à l'ouverture (29) de la rainure en T (5) et comporte à son extrémité vers la base de PU deux ergots (31, 32) amenant la largeur hors tout (40) de la pince (6) à cet endroit sensiblement vers la largeur intérieure (41) de la rainure en T (5). De ce fait, il est possible d'introduire les ergots (31, 32) dans la rainure par un mouvement de rotation (33) et d'engager par la suite la pince (6) dans la rainure par un mouvement de basculement sensiblement autour de l'axe commun (42) des deux ergots (31, 32). Fig. 8 and 9 show a variant of the previously described U-shaped resilient clip (6) which can be inserted into the groove at any point. Indeed, this clamp (6) is reduced at its middle portion to a width (39) slightly smaller than the opening (29) of the T-slot (5) and has at its end towards the base of PU two pins (31, 32) bringing the overall width (40) of the clamp (6) at this point substantially to the inner width (41) of the T-groove (5). Therefore, it is possible to insert the lugs (31, 32) in the groove by a rotational movement (33) and subsequently engage the clamp (6) in the groove by a tilting movement substantially around the common axis (42) of the two lugs (31, 32).
Ce type de liaison. se prête à des arbres de toutes sections (Fig. 2), à savoir ronde, ronde avec un ou plusieurs méplats, avec une ou plusieurs rainures, des arbres cannelés, hexagonaux, carrés, à lobes ou toute autre section et il est évident que pour toute section autre que circulaire un serrage positif peut être obtenu. This type of bond. lends itself to trees of all sections (Fig. 2), ie round, round with one or more flats, with one or more grooves, fluted, hexagonal, square, lobed or any other section and it is evident that for any section other than circular a positive clamping can be obtained.
Une telle pince peut être réalisée en tôle ou fil métalliques tels que d'acier à ressort, de cuivre, laiton, bronze ou aluminium dur mais également en matière synthétique telle que résines époxy, polyester, acryliques, PE PET PS ABS PA renforcée ou non de fibres de verre, aramide, carton, métalliques, minérales ou organiques naturelles. Such a clamp can be made of metal sheet or wire such as spring steel, copper, brass, bronze or hard aluminum but also synthetic material such as epoxy resins, polyester, acrylic, PE PET PS ABS PA reinforced or not natural fiberglass, aramid, cardboard, metallic, mineral or organic fibers.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0311234A FR2860272B1 (en) | 2003-09-25 | 2003-09-25 | ELASTIC CLAMP FOR IMMOBILIZATION OF A SHAFT IN A T-SHAFT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0311234A FR2860272B1 (en) | 2003-09-25 | 2003-09-25 | ELASTIC CLAMP FOR IMMOBILIZATION OF A SHAFT IN A T-SHAFT |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2860272A1 true FR2860272A1 (en) | 2005-04-01 |
FR2860272B1 FR2860272B1 (en) | 2005-11-04 |
Family
ID=34307156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0311234A Expired - Fee Related FR2860272B1 (en) | 2003-09-25 | 2003-09-25 | ELASTIC CLAMP FOR IMMOBILIZATION OF A SHAFT IN A T-SHAFT |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2860272B1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191224105A (en) * | 1912-10-22 | 1913-09-25 | William Henry Tonks | Improvements in or relating to the Attaching of Door Knobs to Spindles. |
US2179441A (en) * | 1936-02-18 | 1939-11-07 | Webb Purcell Thomas | Door latch and catch |
FR1215499A (en) * | 1958-02-05 | 1960-04-19 | Ft Products Ltd | Clip for connecting two articulated parts |
-
2003
- 2003-09-25 FR FR0311234A patent/FR2860272B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191224105A (en) * | 1912-10-22 | 1913-09-25 | William Henry Tonks | Improvements in or relating to the Attaching of Door Knobs to Spindles. |
US2179441A (en) * | 1936-02-18 | 1939-11-07 | Webb Purcell Thomas | Door latch and catch |
FR1215499A (en) * | 1958-02-05 | 1960-04-19 | Ft Products Ltd | Clip for connecting two articulated parts |
Also Published As
Publication number | Publication date |
---|---|
FR2860272B1 (en) | 2005-11-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20120531 |