EP1052366B1 - End cap for fixing a step of a footboard or ladder - Google Patents
End cap for fixing a step of a footboard or ladderInfo
- Publication number
- EP1052366B1 EP1052366B1 EP00401233A EP00401233A EP1052366B1 EP 1052366 B1 EP1052366 B1 EP 1052366B1 EP 00401233 A EP00401233 A EP 00401233A EP 00401233 A EP00401233 A EP 00401233A EP 1052366 B1 EP1052366 B1 EP 1052366B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stepladder
- ladder
- end cap
- recess
- upright
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
- E06C7/082—Connections between rungs or treads and longitudinal members
- E06C7/087—Connections between rungs or treads and longitudinal members with a connecting piece installed around the rung
Definitions
- the invention relates to a step attachment attachment for step or ladder and in particular a step attachment tip adapted for attachment to circular or round section posts.
- FR 1 530 108 discloses a terminal claw for fixing degrees to the two uprights of a household ladder.
- the claw is attached to the upright by a cylindrical depression in which a peg is formed cooperating with a hole formed in the upright, and by a cylindrical protruding portion also and having a hole cooperating with a rivet for fixing the claw to the tubular body of the amount, and its lower side has a hole for the passage of a fixing screw of the wooden degree with the claw.
- La fixing the claw to the amount is made according to two attachment points, one on a projecting portion and this fixation is relatively complex.
- FR 1 530 108 discloses a scale according to the preamble of the claim of claim 1.
- FR 2 100 520 Also known from FR 2 100 520 a metal ladder whose steps are fixed to the uprights by means of end caps nested in the steps and fixed to the uprights each according to at least two attachment points, rivet or lugs conferring the transverse rigidity of the link.
- the invention aims to simplify this tip and in particular its attachment to the stud without protruding part or several attachment points and proposes a step fixing attachment for step or ladder according to claim 1.
- the rod can be tightened crimped on the upright or tightened by means of a nut (threaded rod).
- the step generally comes from extrusion, profiled at great length and cut to length, it can receive the tip without further processing, deburring for example, as is necessary in the current technique.
- the maintenance of walking by the tip on its periphery and likewise the tip on the surface, the inner side of the upright provide a large range of the elements relative to each other and thus a high-strength connection of walking on the amount.
- a left endpiece and a straight endpiece will be symmetrical to each other with respect to a vertical median plane of the steps of the step or ladder, these ends anchoring at each end of the fixed step and applying on each of the amounts of the step plan.
- the inner cutout of the tip is semicircular and extends over half of the support post of circular section. In this way, there is continuity of material between the cutting edge and the corresponding amount without risk of snagging clothes of the user.
- a collar piece may possibly be mounted in connection with the cutting edges of the endpiece around the upright, the stud connecting rod amounts can then be removed, replaced by a direct connection by screw or other to the end of the walk.
- the cutout must correspond to meet the service inclination of the step plan, generally from 20 to 25 °, to a portion of cylinder inclined at this angle relative to the plane of the endpiece, which should normally be horizontal in use. .
- the invention also relates to a step or a ladder comprising at least one upright equipped with step fixing ends according to the invention.
- Figure 1 Due to the general symmetry of the steps or steps of a step or ladder relative to a median vertical plane of the step or ladder, and the analogy of the fixing of the steps of the to one another, there is shown in Figure 1 a single setting of a step to the amount of steps of a step.
- FIG. 1 shows a left-hand fixation, the right-hand fixation being obtained by symmetry by relative to the median vertical plane of the foot market (not shown) and the same for the other steps.
- This walking plan 1 of the step comprises two identical amounts 3 of circular section and steps 5 fixed regularly on these amounts.
- the steps are connected to the uprights by means of an intermediate piece, namely the step-fixing end-piece 7 according to the invention, arranged between the step, its end, and the corresponding amount.
- This part is preferably made from a casting of light metal alloy, for example aluminum. It has a generally flattened body 9 of flattened sleeve, of rectangular cross-section, adapted to the profile of the received step 5. The body is thus open towards the rear thus allowing the introduction of the step by its end, which is complementary rectangular section with low clearance of the inner section of the sleeve.
- a cylindrical cutout 11 is formed in a centered position on the front face of the body.
- This cut is in fact that of a half-cylinder of circular cross section whose axis is inclined relative to the plane of the sleeve.
- the angle of inclination is approximately 20 to 25 °, corresponding to the inclination of the step plane in the operating position of the step, the steps as the plane of the tip then being in substantially horizontal position.
- This cutout 11 is in fact complementary to the upright according to a half portion thereof as shown in Figures 1 and 3, so that the amount can be received in this cutout, on this half portion, very low peripheral clearance.
- a drilling hole 13 provided for the passage of the rod 15 connecting the step to the amount.
- This rod 15 besides it serves as a support for walking by a suitable longitudinal cradle housing, allows to rigidly connect the two opposite amounts of the step plan to walk.
- the edge 17 of the lateral faces of the body is chamfered and slightly rounded at the front corners.
- the inner section of the sleeve is preferably slightly dimmed inside (slightly conical) so that the end of the step can be stuck without play inside the sleeve.
- step 5 after extrusion, profiled lightweight metal alloy, aluminum in particular, is cut to the desired length of center distance between the uprights with a straight edge 19 without further treatment, including deburring and chamfering as for conventional connections by welding steps on rectangular section uprights.
- the two end pieces 7 are then each slid on each of the ends of the fixed step and pressed back into the press until a length of about 10 mm abutting the cut.
- the rod 15 is threaded into the set of steps and end caps, protruding on each side a little more than the diameter of the uprights.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
Description
L'invention concerne un embout de fixation de marche pour marchepied ou échelle et en particulier un embout de fixation de marche adapté à la fixation sur des montants de section circulaire ou arrondie.The invention relates to a step attachment attachment for step or ladder and in particular a step attachment tip adapted for attachment to circular or round section posts.
On sait que des montants de section circulaire pour des marchepieds ou échelles confèrent à ces derniers relativement à des montants de section rectangulaire classique une rigidité transversale plus importante du plan de marche constitué.It is known that amounts of circular section for steps or ladders give the latter relative to amounts of conventional rectangular section greater transverse rigidity of the step plan.
Néanmoins, la fixation des marches à de tels montants est difficile à réaliser.Nevertheless, the fixing of steps to such amounts is difficult to achieve.
On connaît par FR 1 530 108 une griffe terminale pour la fixation des degrés aux deux montants d'une échelle ménagère. La griffe est fixée au montant par une dépression cylindrique dans laquelle une cheville est formée coopérant avec un trou formé dans le montant, et par une partie saillante cylindrique également et présentant un trou coopérant avec un rivet pour la fixation de la griffe au corps tubulaire du montant, et son coté inférieur présente un trou pour le passage d'une vis de fixation du degré en bois avec la griffe.La fixation de la griffe au montant est réalisée selon deux points de fixation dont un sur une partie en saillie et cette fixation est relativement complexe.
Le document FR 1 530 108 décrit une échelle selon le préambule de la revendication de la revendication 1.
On connaît par ailleurs par FR 2 100 520 une échelle métallique dont les marches sont fixées aux montants au moyen d'embouts emboîtés dans les marches et fixés aux montants chacun selon au moins deux points de fixation, rivet ou ergots conférant la rigidité transversale de la liaison.Also known from FR 2 100 520 a metal ladder whose steps are fixed to the uprights by means of end caps nested in the steps and fixed to the uprights each according to at least two attachment points, rivet or lugs conferring the transverse rigidity of the link.
L'invention vise à simplifier cet embout et notamment sa fixation au montant sans partie en saillie ni plusieurs points de fixation et propose un embout de fixation de marche pour marchepied ou échelle conforme à la revendication 1.The invention aims to simplify this tip and in particular its attachment to the stud without protruding part or several attachment points and proposes a step fixing attachment for step or ladder according to
La tige peut être serrée sertie sur le montant ou serrée au moyen d'un écrou (tige filetée).The rod can be tightened crimped on the upright or tightened by means of a nut (threaded rod).
La marche étant généralement issue d'extrusion, profilée à grande longueur et découpée à longueur, celle-ci peut recevoir l'embout sans autre traitement ultérieur, ébavurage par exemple, comme cela est nécessaire dans la technique actuelle. De plus, le maintien de la marche par l'embout sur sa périphérie et de même de l'embout sur la surface, côté intérieur, du montant, assurent une grande portée des éléments l'un par rapport à l'autre et donc une liaison de haute résistance de la marche sur le montant.As the step generally comes from extrusion, profiled at great length and cut to length, it can receive the tip without further processing, deburring for example, as is necessary in the current technique. In addition, the maintenance of walking by the tip on its periphery and likewise the tip on the surface, the inner side of the upright, provide a large range of the elements relative to each other and thus a high-strength connection of walking on the amount.
Naturellement, on trouvera un embout gauche et un embout droit symétriques l'un de l'autre par rapport à un plan médian vertical du plan de marches du marchepied ou de l'échelle, ces embouts s'emmanchant à chacune des extrémités de la marche fixée et s'appliquant sur chacun des montants du plan de marches.Naturally, a left endpiece and a straight endpiece will be symmetrical to each other with respect to a vertical median plane of the steps of the step or ladder, these ends anchoring at each end of the fixed step and applying on each of the amounts of the step plan.
De préférence, la découpe intérieure de l'embout est demi-circulaire et s'étend sur la moitié du montant support de section circulaire. De cette façon, il y a continuité de matière entre le bord de découpe et le montant correspondant sans risque d'accrochage des vêtements de la personne utilisatrice.Preferably, the inner cutout of the tip is semicircular and extends over half of the support post of circular section. In this way, there is continuity of material between the cutting edge and the corresponding amount without risk of snagging clothes of the user.
Bien que cela ne soit pas nécessaire, une pièce collier peut éventuellement être montée en raccordement des bords de découpe de l'embout autour du montant, la tige de liaison des montants pouvant alors être supprimée, remplacée par une liaison directe par vis ou autre à l'extrémité de la marche.Although this is not necessary, a collar piece may possibly be mounted in connection with the cutting edges of the endpiece around the upright, the stud connecting rod amounts can then be removed, replaced by a direct connection by screw or other to the end of the walk.
Naturellement, la découpe doit correspondre pour répondre à l'inclinaison de service du plan de marches, de 20 à 25° en général, à une portion de cylindre inclinée de cet angle relativement au plan de l'embout qui doit normalement être horizontal en service.Naturally, the cutout must correspond to meet the service inclination of the step plan, generally from 20 to 25 °, to a portion of cylinder inclined at this angle relative to the plane of the endpiece, which should normally be horizontal in use. .
L'invention concerne également un marchepied ou une échelle comprenant au moins un montant équipé d'embouts de fixation de marche selon l'invention.The invention also relates to a step or a ladder comprising at least one upright equipped with step fixing ends according to the invention.
L'invention est illustrée ci-après à l'aide d'un exemple de réalisation et en référence au dessin annexé, sur lequel :
- La figure 1 est une vue en perspective partielle d'un marchepied selon l'invention, montrant un embout de fixation d'une marche à un montant de plan de marches ou de montée d'un marchepied, selon l'invention ;
- La figure 2 est une vue en perspective de l'embout de fixation seul, et
- La figure 3 est une vue en coupe de l'embout montrant l'assemblage réalisé.
- Figure 1 is a partial perspective view of a step according to the invention, showing a fixing end of a step to the amount of steps or steps of a step according to the invention;
- FIG. 2 is a perspective view of the attachment end piece alone, and
- Figure 3 is a sectional view of the tip showing the assembly made.
En raison de la symétrie en général du plan de marches ou de montée d'un marchepied ou d'une échelle relativement à un plan vertical médian du marchepied ou de l'échelle, et de l'analogie de la fixation des marches de l'une à l'autre, on n'a représenté à la figure 1 qu'une seule fixation de marche à un montant de plan de marches d'un marchepied.Due to the general symmetry of the steps or steps of a step or ladder relative to a median vertical plane of the step or ladder, and the analogy of the fixing of the steps of the to one another, there is shown in Figure 1 a single setting of a step to the amount of steps of a step.
Ainsi est représentée sur cette figure 1 une fixation de marche gauche, la fixation de marche droite étant obtenue par symétrie par rapport au plan vertical médian du marche pied (non représenté) et de même pour les autres marches.Thus, FIG. 1 shows a left-hand fixation, the right-hand fixation being obtained by symmetry by relative to the median vertical plane of the foot market (not shown) and the same for the other steps.
Ce plan de marche 1 du marchepied comporte deux montants identiques 3 de section circulaire et des marches 5 fixées régulièrement sur ces montants. La liaison des marches aux montants est réalisée au moyen d'une pièce intermédiaire, à savoir l'embout 7 de fixation de marche selon l'invention, disposé entre la marche, son extrémité, et le montant correspondant.This
Cette pièce, représentée à la figure 2, est de préférence issue de moulage en alliage de métal léger, aluminium par exemple. Elle présente un corps 9 à forme générale de manchon aplati, de section transversale rectangulaire, adapté au profil de la marche reçue 5. Le corps est donc ouvert vers l'arrière permettant ainsi l'introduction de la marche par son extrémité, laquelle est de section rectangulaire complémentaire à faible jeu de la section intérieure du manchon.This part, represented in FIG. 2, is preferably made from a casting of light metal alloy, for example aluminum. It has a generally
A l'opposé de l'ouverture, une découpe cylindrique 11 est formée en position centrée sur la face avant du corps. Cette découpe est en fait celle d'un demi-cylindre de section transversale circulaire dont l'axe est incliné relativement au plan du manchon. L'angle d'inclinaison est de 20 à 25° environ, correspondant à l'inclinaison du plan de marches en position de service du marchepied, les marches comme le plan de l'embout étant alors en position sensiblement horizontale.Opposite the opening, a
Cette découpe 11 est en fait complémentaire du montant selon une demi portion de celui-ci comme représenté sur les figures 1 et 3, de sorte que le montant puisse être reçu dans cette découpe, sur cette demi portion, à très faible jeu périphérique.This
En position centrale sur la découpe est formé de moulage un trou de perçage 13 prévu pour le passage de la tige 15 de liaison de la marche au montant. Cette tige 15, outre qu'elle sert de support à la marche par un logement de berceau longitudinal adéquat, permet de relier rigidement les deux montants opposés du plan de marches à la marche.In the central position on the cutout is formed by molding a
Le bord 17 des faces latérales du corps est chanfreiné et légèrement arrondi aux angles avant.The
La section intérieure du manchon est de préférence légèrement diminuée à l'intérieur (légèrement conique) de sorte que l'extrémité de la marche puisse être coincée sans jeu à l'intérieur du manchon.The inner section of the sleeve is preferably slightly dimmed inside (slightly conical) so that the end of the step can be stuck without play inside the sleeve.
L'assemblage de fixation de la marche dans l'embout et de l'embout sur le montant est à présent décrit.The fastening assembly of the step in the tip and the tip on the amount is now described.
La marche 5 issue d'extrusion, profilée en alliage de métal léger, aluminium notamment, est découpée à la longueur souhaitée d'entraxe entre les montants avec un bord droit 19 sans autre traitement, ébavurage notamment et chanfreinage comme pour les liaisons classiques par soudure des marches sur des montants de section rectangulaire.The step 5 after extrusion, profiled lightweight metal alloy, aluminum in particular, is cut to the desired length of center distance between the uprights with a
Les deux embouts 7 sont alors glissés chacun sur chacune des extrémités de la marche fixée et rentrés à force sous presse jusqu'à une longueur d'environ 10 mm en butée sur la découpe.The two end pieces 7 are then each slid on each of the ends of the fixed step and pressed back into the press until a length of about 10 mm abutting the cut.
La tige 15 est enfilée dans l'ensemble marche et embouts d'extrémité, dépassant de chaque côté d'un peu plus du diamètre des montants.The
Ces parties d'extrémités de la tige sont alors rentrées dans les trous prépercés transversaux de fixation de la marche des montants jusqu'à dépasser également à l'extérieur de chacun d'eux, puis l'ensemble est tiré sous presse pour resserrer les montants l'un vers l'autre. A ce moment, on déforme légèrement la section d'arrondi du montant qui s'aplatit légèrement sous la pression (selon flèches) et vient épouser parfaitement la découpe extérieure 11 (compensation des jeux), comme représenté à la figure 3 et il ne reste plus qu'à sertir chacune des extrémités de la tige 15 (tube en métal léger) en formant une bouterolle 21 contre chacun des montants.These end portions of the rod are then retracted into the pre-drilled holes for fixing the step of the uprights to also protrude outside each of them, then the assembly is pulled in press to tighten the amounts towards each other. At this moment, the rounding section of the upright slightly deforms slightly under pressure (according to arrows) and just marries the outer cutout 11 (compensation of the games), as shown in FIG. more than crimp each end of the rod 15 (light metal tube) forming a
On obtient ainsi une liaison parfaitement rigide de la marche sur le montant de plan de marches.This gives a perfectly rigid connection of the step on the amount of steps plan.
Bien que cette liaison soit bien adaptée à des montants de section arrondie, les embouts selon l'invention pourraient également être utilisés avec des montants d'une autre section, arrondie, triangulaire, rectangulaire etc...Although this connection is well suited to amounts of rounded section, the end pieces according to the invention could also be used with amounts of another section, rounded, triangular, rectangular, etc.
Claims (9)
- A stepladder or ladder comprising an end cap (7) for fastening a step and adapted in particular to be fastened on uprights (3) for step surface uprights of the stepladder or ladder, the section of which is rounded or circular, said end cap comprising a body provided with an opening, which is generally socket-shaped and the inner section of which is complementary, with little play, to the end of the step (5) to be accommodated so as to fit externally over the step with its opening, said end cap (7) further comprising an outer recess (11) formed on the body opposite the opening, the recess being of complementary cylindrical shape adapted with little play to one portion of the upright section, the outer cylindrical recess having a suitable axial inclination of the cylinder, relative to the step surface of the stepladder or ladder in operation, the fastening of the end cap (7) to the upright being carried out by a drilled hole and a pin (15) or a screw, characterised in that the pin or the screw is mounted transversely in the outer recess (11) and is connected tightly to the upright (3) and to the step (5).
- A step ladder or ladder according to claim 1, characterised in that the recess (11) is formed in a position centred on the front surface of the body, opposite the opening.
- A stepladder or ladder according to claim 1 or 2, characterised in that said pin (15) is crimped against the upright (3).
- A stepladder or ladder according to claim 1 or 2, characterised in that the pin is threaded.
- A stepladder or ladder according to any one of the preceding claims, characterised in that it receives a step (5) formed by extrusion and cut to length without further processing.
- A stepladder or ladder according to any one of the preceding claims, characterised in that a left-hand end cap and a right-hand end cap are used, which are symmetrical to one another in relation to a vertical median plane of the step surface of the stepladder or ladder, these end caps being fitted at each of the ends of the fastened step (5) and being applied to each of the uprights (3) of the step surface.
- A stepladder or ladder according to any one of the preceding claims, characterised in that the inner recess (11) of the end cap is semicircular and extends over half of the support upright (3) of circular section.
- A stepladder or ladder according to any one of the preceding claims, characterised in that a collar member is mounted to connect the edges of the recess (11) of the end cap around the upright (3), it then being possible to omit the connecting pin (15) for the uprights and replace it with a direct connection by screw or the like at the end of the step.
- A stepladder or ladder according to any one of the preceding claims, characterised in that the recess (11) corresponds, in order to conform to the operating inclination of the step surface, generally of 20 to 25°, to a cylinder portion inclined by this angle relative to the plane of the end cap which is normally horizontal in operation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9906091 | 1999-05-12 | ||
| FR9906091A FR2793520B1 (en) | 1999-05-12 | 1999-05-12 | STEP FIXING END PIECE FOR FOOTBOARD OR LADDER, FOOTBOARD AND LADDER OBTAINED |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1052366A1 EP1052366A1 (en) | 2000-11-15 |
| EP1052366B1 true EP1052366B1 (en) | 2006-08-16 |
Family
ID=9545543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00401233A Expired - Lifetime EP1052366B1 (en) | 1999-05-12 | 2000-05-05 | End cap for fixing a step of a footboard or ladder |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1052366B1 (en) |
| AT (1) | ATE336635T1 (en) |
| DE (1) | DE60030029T2 (en) |
| ES (1) | ES2269077T3 (en) |
| FR (1) | FR2793520B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004002872U1 (en) * | 2004-02-25 | 2004-04-29 | Zarges Gmbh & Co Kg | ladder |
| EP3112579B1 (en) | 2015-06-30 | 2020-04-29 | Hultafors Group AB | A ladder |
| CN105332642A (en) * | 2015-10-19 | 2016-02-17 | 南宁市正极机电有限公司 | Climbing device for outdoor electrical equipment maintenance |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2192521A (en) * | 1938-09-30 | 1940-03-05 | Sidney A Mcgaw | Ladder |
| FR1530108A (en) * | 1967-07-03 | 1968-06-21 | End claw for fixing the steps to the two uprights of a household ladder | |
| FR2100520B1 (en) * | 1971-10-29 | 1974-01-04 | Chevant Claude | |
| FR2661935A1 (en) * | 1990-05-09 | 1991-11-15 | Furodet Philippe | STAIRCASE LADDER ASSEMBLY FOR POOLS WITH WATER SUCTION. |
| EP0607740A1 (en) * | 1993-01-22 | 1994-07-27 | Astral Sociedad Anonima De Construcciones Metalicas | Rung for a swimming pool ladder |
-
1999
- 1999-05-12 FR FR9906091A patent/FR2793520B1/en not_active Expired - Lifetime
-
2000
- 2000-05-05 AT AT00401233T patent/ATE336635T1/en not_active IP Right Cessation
- 2000-05-05 DE DE60030029T patent/DE60030029T2/en not_active Expired - Lifetime
- 2000-05-05 EP EP00401233A patent/EP1052366B1/en not_active Expired - Lifetime
- 2000-05-05 ES ES00401233T patent/ES2269077T3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ATE336635T1 (en) | 2006-09-15 |
| EP1052366A1 (en) | 2000-11-15 |
| DE60030029D1 (en) | 2006-09-28 |
| ES2269077T3 (en) | 2007-04-01 |
| DE60030029T2 (en) | 2007-01-04 |
| FR2793520A1 (en) | 2000-11-17 |
| FR2793520B1 (en) | 2001-08-03 |
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