EP1020653B1 - Articulation, particulièrement pour raccorder les montants d'échelles - Google Patents

Articulation, particulièrement pour raccorder les montants d'échelles Download PDF

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Publication number
EP1020653B1
EP1020653B1 EP00100518A EP00100518A EP1020653B1 EP 1020653 B1 EP1020653 B1 EP 1020653B1 EP 00100518 A EP00100518 A EP 00100518A EP 00100518 A EP00100518 A EP 00100518A EP 1020653 B1 EP1020653 B1 EP 1020653B1
Authority
EP
European Patent Office
Prior art keywords
joint
articulation
lever
locking
accordance
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
Application number
EP00100518A
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German (de)
English (en)
Other versions
EP1020653A1 (fr
Inventor
Jörg Rauschenberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rauschenberger U Co GmbH
Original Assignee
Rauschenberger U Co GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rauschenberger U Co GmbH filed Critical Rauschenberger U Co GmbH
Publication of EP1020653A1 publication Critical patent/EP1020653A1/fr
Application granted granted Critical
Publication of EP1020653B1 publication Critical patent/EP1020653B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/32—Ladders with a strut which is formed as a ladder and can be secured in line with the ladder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32262—At selected angle
    • Y10T403/32319—At selected angle including pivot stud
    • Y10T403/32327—At selected angle including pivot stud including radially spaced detent or latch component
    • Y10T403/32336—Engaging notch or recess in outer periphery of component

Definitions

  • the invention relates to a joint, in particular for connection of ladder stiles of a foldable multi-purpose ladder the genus specified in the preamble of claim 1.
  • DE 32 11 164 C2 is a foldable multi-purpose ladder described, the spars by paired and joints that can be locked in several working positions are connected. These joints point two by one common joint axis pivotable joint parts, wherein one of these joint parts is a double-shell locking disk forms.
  • This locking disc has in the area of its circumference Grooves distributed according to the working positions. In these grooves engage a spring-loaded locking piece, which for Purpose of pivoting the joint parts from the grooves is.
  • This locking piece consists of a cross section essentially rectangular bar, the height of which in is approximately equal to the width of the second joint part.
  • the Locking piece is in a recess in the side walls of the guided second joint part and includes one to the Bolt adjoining guide part, the height of which is only slight is smaller than the height of the second joint part, wherein the width is larger than the width of the recess.
  • an abutment is provided for the return spring.
  • the locking piece is through one on the second joint part pivoted and with an operating lever connected release lever from the respective groove of the locking disc be lifted.
  • the release levers of the two spars Joints are connected by a rod, so that an unlocking of the locking pieces in pairs Arranged joints can be operated simultaneously.
  • the recess has sections of different widths on, so that a storage surface is formed, in which the Latch is held in its disengaged position.
  • the Grooved lock washer is next to the grooves lying noses provided as the stop surface for the Latch of the locking piece is used so that in the direction of folding the spars the locking piece from the shelf is pushed and thus automatically engages in the groove.
  • the present invention is based on the object Joint of the type specified in the preamble of claim 1 to create that has a simple and safe structure, and inexpensive is in the making.
  • Some advantages of the invention can be seen in the fact that Joint while maintaining all the necessary functions and meeting security requirements from an extreme there is a small number of individual parts and these individual parts are easy to manufacture and assemble.
  • the movable elements such as locking member and Lever and those required to lock the locking member Recesses in an essentially encapsulated area inside the outer shell, so that the joint from contamination is well protected. Only the slots for the locking members are open to the outside and a handle element or an operating button or a bracket if necessary bilateral operation from one hand are as movable elements outside the joint.
  • this Lever cooperates with one end of a locking slide. That way the shape of the required parts further simplified, wherein the gate valve in one piece training two Includes locking members that are preferably in alignment with each other are aligned. This way the respective Requirements to be transferred Forces both through the strength of the material used as well as the number of blocking elements become.
  • a spring is preferably provided between the Inner panes is arranged and with one end on the Gate valve works. This is preferably around a leaf or spiral spring, which has an offset of the gate valve attacks.
  • the lever is in the Articulated socket of the inner joint part, the Pivot axis of the lever runs parallel to the hinge axis. It is useful that the lever one between the pivoting cover or guide part and at least one actuator carried by it and includes a bearing bush, the actuators through an opening in the joint socket protrude outwards. With such a configuration is due the defined distance of the lever between them enclosing parts of the joint socket, the thickness of the Corresponds to cover or guide part with corresponding play, a jamming-free pivoting of the lever ensures and the ingress of dirt is avoided. Is between the actuator and the bearing bush a recess is provided in the lever into which the hook of the gate valve is hooked in. That way a positive connection between lever and gate valve given.
  • the lever in a cover attached to the inner hinge part stored, the pivot axis of the lever orthogonal runs to the joint axis. It is in the cover a pressure plate acting on the lever is provided, which are firmly connected with a pin mounted in the hinge axis is. This pressure plate is used to unlock the joint, the lever moving the pressure plate in implements a transverse movement of the locking slide.
  • the spring can for example be a leaf spring or Spiral spring to be formed and is with one of its ends held on the inner pane.
  • each inner pane Cutouts a narrow section as well as a wider one Section that is closer to the joint axis, as well as a between the two sections arranged paragraph on which the locking member can be supported. This paragraph serves to keep the locking member in the unlocked position, so that when folding the ladder stiles the joint parts can be pivoted without the locking members in Snap the intermediate recesses into place.
  • the joint shown in the exploded view in Fig. 1 consists of an outer joint part 5 and an inner one Joint part 6, the outer joint part 5 consisting of two outer shells 7 with joint piece 8 and the inner joint part 6 formed from two inner disks 9 with joint piece 10 are.
  • the outer shells 7 are in an inward direction Vault provided with a central opening 34 and in the inner panes 9 is one of a passage surrounded central opening 17, which are congruent and through the one hinge axis 4 in the form of a bolt or Rivets.
  • the outer joint part 5 and the inner Joint part 6 can be pivoted relative to one another about the joint axis 4.
  • the joint pieces 8 and 10 are to increase the stiffness with beads 18 and for connection with a ladder bar or the like with recesses 19.
  • the outer shells 7 with the joint pieces 8 are mirror images executed, as are the inner panes 9 with the hinge connector 10 mirror image.
  • the inner panes 9 have a raised edge 37 along their circumference provided so that between the two assembled inner panes 9 a cavity is formed.
  • a gate valve 20 is arranged, which is shown in FIGS. 2a to 2c is shown in three views.
  • the gate valve 20 is made of a flat material molded in one piece and includes two locking members 24 and 30. There are two between the locking members 24 and 30 Offsets 22. On the beyond the locking member 30 A hook 23 is provided at the end of the locking slide 20, the for the positive connection of the gate valve serves with a lever 25.
  • the lever comprises 25 a bearing bushing 27 which is on an inner joint part 6 journal formed by material deformation 33 (Fig. 1) is attached, and a cover or guide part 29, which has the shape of a flat plate.
  • a recess 28 for Hooking the hook 23 of the locking slide 20 is provided.
  • 29 are on both flat sides of the guide part Actuators 26 arranged that substantially protrude orthogonally from the plate plane and a have such a height that - as shown in FIG. 1 - by Openings 32, which are formed in passages 31 of the joint socket 10 protrude to the outside.
  • the outer shells 7 consist of a cover section 40 and a peripheral edge 39 and at a radial distance this is a ring 36 directed towards the inner disks 9 provided in which recesses 35 are arranged, which form radial slots.
  • recesses 35 and 42 can engage the locking members 24 and 30 or be pushed out of these for the purpose of unlocking.
  • ring segments can also be used corresponding gaps may be provided, the to accommodate the locking members 24, 30 serving spaces have a shape and size comparable to the recesses 35, 42.
  • On the radially inner side of the Arc-shaped recesses 36 is one Slide surface 38 for the locking members 24 during pivoting of the joint parts.
  • a joint 1 which consists of two joint legs 2 and 3 exists.
  • the joint legs 2 and 3 include Articulated socket 8 and 10, for inclusion in ladder stiles are provided.
  • the two joint legs 2 and 3 have a common hinge axis 4 and are around this pivotable against each other.
  • 4 is the outer shell 7 shown hidden, whereas the inner disc 9 of the joint leg 3 can be seen.
  • the Spring 11 the gate valve 20 on one of its bends 22 loaded in a direction in which the locking member 24 into a narrow section 13 of the recess 12 is pushed.
  • the locking member 30 is located in the recess 16.
  • the recess 12 also includes a wider one Section 14, which is arranged radially further inside, and a paragraph provided between sections 13 and 14 15.
  • the lever 25 is in this position of the Locking slide 20 in its end position towards the hinge axis 4.
  • the position of the bearing journal 33 can also be seen from FIG. 4, onto which the bearing bush 27 is attached. in the the rest agree with the reference numerals for the same parts those of FIG. 1 correspond.
  • Fig. 5 shows the arrangement in the unlocked Position, with the joint pieces 8 and 10 against each other are pivoted and an angle of approx. Include 30 °.
  • the locking slide is in this position 20 moved transversely to the hinge axis 4, the locking member 24 towards the hinge axis 4 and the locking member 30 from the hinge axis 4 is moved. This takes the position Locking slide 20 when the lever 25 counterclockwise is pivoted about the journal 33, what with With the help of the actuator protruding from the joint 26 takes place.
  • the locking member 24 is complete from the narrow section 13 of the recess 12 in the moved wider section 14, the spring 11 moves because of their direction of force with which they are applied to the bend 22 acts, the locking member 24 somewhat in the circumferential direction of the joint 1 so that the front edge of the locking bolt 24th comes to lie behind paragraph 15. Otherwise, they are correct the reference numerals in Fig. 4 for the same parts with those of the figures described above.
  • FIG. 6 shows the outer view of the joint 1 shown in FIG. 6 as the location of the recesses 35 and 42 for snapping the Locking elements of the locking slide clearly.
  • 35 denotes the recesses into which that in FIGS. 4 and 5 illustrated locking member 24 engages
  • 42 are the Designated recesses provided for the locking member 30 are.
  • FIGS. 1, 4 and 5 Joint parts 5 and 6 are sheet metal parts are in Fig. 6 shows the inner contours of the outer shell 7. It follows that the sliding surface 38 next to the recesses 35 a radially directed to the hinge axis 4 elevation 44 has a flat on one side ascending ramp 45 and on the other hand as steep rising edge 46 is formed. This steeply rising Flank 46 runs at least approximately parallel to the radial direction, related to the central opening 34 in the Outer shell 7.
  • a bracket 49 is also shown, with the Actuator 26 interacts, this one Bracket 49 for easier actuation for pivoting the lever 25 is provided.
  • the bracket 49 can in engage the journal 33 if this journal 33 is hollow, for example by sheet metal forming.
  • the bracket 49 can also be used for one-handed operation of two joints that are opposite to each other Posts of a multi-purpose ladder are arranged in pairs, more suitable Bracket may be provided.
  • Fig. 7 shows a view of the joint 1 in the direction of Arrow VII of Fig. 6. It can be seen that each two outer shells 7, the outer joint part 5 and two inner disks 9 form the inner joint part 6. Otherwise, they are correct the reference numerals in Fig. 7 for the same parts with those of the figures described above.
  • This joint 51 comprises an outer joint part 55 and an inner one Joint part 56.
  • the outer joint part 55 is made of two outer shells 57 with adjoining joint piece 58, these are almost identical in terms of their design are with the outer shells 7 of Fig. 1.
  • the gate valve 20 and the spring 11 are identical to the embodiment according to FIGS. 1 and 2a to 2c.
  • the locking slide 20 is also guided in the inner joint part 56 in the same way as in the joint part in Fig. 1.
  • the inner joint part 56 is made of two Inner discs 59 are formed, the upper inner disc in FIG.
  • the lever includes 65 two arms 62 and 63, each of a bearing bush 64 go out and essentially an angle of about 90 ° lock in.
  • the arm 62 serves to interpose in a recess 74 to grip the hook 23 and the locking member 30.
  • the outer shells 57 also have central openings 34 and Inner discs 59 central openings 17 through which a Hollow rivet is guided as a hinge axis 54.
  • This cover 70 covers the upper outer shell 57 and extends over an essential part of the joint socket 60.
  • Die Cover 70 has a bore 71 for receiving a pressure plate 72 is used, which in the bore 71st is movable. There is a on the pressure plate 72 Coaxially arranged on this pin 73, which in the as a hinge axis 54 serving rivet is guided.
  • Fig. 10 shows a plan view of the hinge 51 that from there are two joint legs 52 and 53. From this illustration the shape and extent of the cover 70 can be seen, being central to the substantially circular Section of the cover 70 arranged the pressure plate 72 is.
  • FIG. 11 shows a section along the line XI-XI in FIG. 10. It can be seen that the lever 65 with its bearing bush 64 mounted on a pin 69 in the cover 70 is. The arm 63 of the lever 65 engages under it Pressure plate 72, whereas the arm 62 through the recess 61 protrudes and into the 30 formed between hook 23 and locking member Deepening takes hold. The locking member 30 is located in the recess 42 and the locking member 24 in the recess 35, that is, Fig. 11 shows the locked position. In this position, the pressure plate 72 takes its upper end position and the pin 73 closes at least approximately flush with the underside of the joint 51.
  • FIG. 13 shows a view along line XIII-XIII, wherein it is essentially an exterior view and just a section through the mounting arrangement the cover 70 is guided on the joint 51. It is from it can be seen that the screws 66 from below through the Screw holes 67 inserted and in the cover 70th molded threaded sleeves 68 are rotated.

Landscapes

  • Ladders (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Harvester Elements (AREA)

Claims (11)

  1. Articulation, particulièrement pour raccorder des montants d'échelles d'une échelle multipositions repliable, avec deux branches d'articulation (2, 3 ; 52, 53) qui peuvent pivoter l'une par rapport à l'autre autour d'un axe d'articulation (4, 54) et qui se composent respectivement de pièces préformées assemblées par paires, dans laquelle une des branches d'articulation (2, 52) forme une pièce externe d'articulation (5, 55) avec des coquilles extérieures (7, 57) et un embout d'articulation (8, 58) et l'autre branche d'articulation (3, 53) est réalisée comme pièce interne d'articulation (6, 56) avec des disques intérieurs (9, 59) et un embout d'articulation (10, 60) et dans laquelle des évidements (12, 16) sont prévus dans les disques intérieurs (9, 59), avec au moins un élément de verrouillage (24, 30) soumis à l'action d'un ressort, qui peut être sensiblement déplacé dans le sens radial ou tangentiel à l'axe d'articulation (4, 54) et qui peut s'enclencher dans au moins un évidement (35, 42) de la branche d'articulation (2, 52) formant la pièce externe d'articulation (5, 55) et avec un levier (25, 65) pour le déverrouillage de l'élément de verrouillage (24, 30), caractérisée en ce qu'il est prévu un verrou d'arrêt (20) comprenant deux éléments d'arrêt (24, 30) et en ce que les éléments d'arrêt (24, 30) s'étendent transversalement au plan des disques intérieurs (9, 59) à travers les évidements (12, 16), le verrou d'arrêt étant en interaction avec le levier (25, 65) qui peut pivoter autour d'un palier (33, 69) disposé avec un espacement par rapport à l'axe d'articulation (4, 54) et par l'actionnement duquel les éléments d'arrêt (24, 30) sont déplacés dans le même sens.
  2. Articulation selon la revendication 1, caractérisée en ce qu'au moins un évidement (35, 42) est disposé de telle manière dans la coquille extérieure (7, 57) qu'au moins un élément de verrouillage (24, 30) puisse être déplacé hors de l'évidement (35, 42) en direction de l'axe d'articulation (4, 54).
  3. Articulation selon la revendication 1, caractérisée en ce que le levier (25) est logé dans l'embout d'articulation (10) de la pièce interne d'articulation (6), l'axe de pivotement du levier (25) s'étendant parallèlement à l'axe d'articulation (4) et le levier (25) agissant de concert avec un verrou d'arrêt (20).
  4. Articulation selon la revendication 3, caractérisée en ce que le levier (25) comprend une pièce de recouvrement ou de guidage (29) pouvant pivoter entre les embouts d'articulation (10) et au moins élément d'actionnement (26) porté par celle-ci ainsi qu'une douille de logement (27), les éléments d'actionnement (26) dépassant vers l'extérieur à travers une ouverture (32) pratiquée dans les embouts d'articulation (10).
  5. Articulation selon la revendication 1, caractérisée en ce que le levier (65) est logé dans un capot (70) fixé sur la pièce interne d'articulation (56), l'axe de pivotement du levier (65) s'étendant dans le sens orthogonal par rapport à l'axe d'articulation (54) et le levier (65) agissant de concert avec un verrou d'arrêt (20).
  6. Articulation selon la revendication 5, caractérisée en ce que dans le capot (70) est prévue une platine de compression (72) agissant sur le levier (65) et qui est reliée de manière fixe avec une tige (73) logée dans l'axe d'articulation (54), la tige (73) se trouvant à l'intérieur du contour de l'articulation lorsque l'articulation (51) est en position de verrouillage et dépassant de manière nettement reconnaissable de l'articulation dans la position de déverrouillage de celle-ci.
  7. Articulation selon l'une quelconque des revendications 1 à 6, caractérisée en ce qu'entre les disques intérieurs (9, 59) est disposé un ressort (11) qui est maintenu d'un côté sur les disques intérieurs (9, 59) et qui agit dé l'autre côté sur le verrou d'arrêt (20).
  8. Articulation selon l'une quelconque des revendications 3 à 7, caractérisée en ce que le verrou d'arrêt (20) comprend deux éléments d'arrêt (24, 30) qui sont orientés en étant en alignement l'un par rapport à l'autre.
  9. Articulation selon l'une quelconque des revendications 1 à 8, caractérisée en ce que dans les disques intérieurs (9) est prévu respectivement un évidement (12) qui s'étend sensiblement dans le sens radial et qui comprend une section étroite (13) ainsi qu'une section plus large (14) avec un épaulement (15) se trouvant entre les deux.
  10. Articulation selon l'une quelconque des revendications 1 à 9, caractérisée en ce que les coquilles extérieures (7) comprennent un bord (39) qui s'étend dans le sens circulaire et qui est dirigé vers les coquilles intérieures (9) et en ce qu'avec un espacement radial par rapport au bord (39) est prévue une bague (36) dirigée vers le disque intérieur et comportant des évidements (35, 42) ou en ce que des segments d'anneau avec des interstices correspondant, qui servent à recevoir les éléments d'arrêt (24, 30), sont prévus.
  11. Articulation selon la revendication 10, caractérisée en ce que sur le côté radial intérieur de la bague (36) sont formées des surfaces de glissement (61) et en ce qu'à côté d'au moins un évidement dans la coquille extérieure (7) est prévu un renflement (44) dirigé dans le sens radial vers l'axe d'articulation (4), ce renflement (44) étant constitué, en direction du déploiement des embouts d'articulation, d'un flanc à pente raide (46) et ayant dans la direction opposée la forme d'une rampe (45).
EP00100518A 1999-01-14 2000-01-12 Articulation, particulièrement pour raccorder les montants d'échelles Expired - Lifetime EP1020653B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19901125 1999-01-14
DE19901125A DE19901125C1 (de) 1999-01-14 1999-01-14 Gelenk, insbesondere zur Verbindung von Leiterholmen

Publications (2)

Publication Number Publication Date
EP1020653A1 EP1020653A1 (fr) 2000-07-19
EP1020653B1 true EP1020653B1 (fr) 2004-09-01

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Application Number Title Priority Date Filing Date
EP00100518A Expired - Lifetime EP1020653B1 (fr) 1999-01-14 2000-01-12 Articulation, particulièrement pour raccorder les montants d'échelles

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Country Link
US (1) US6330733B1 (fr)
EP (1) EP1020653B1 (fr)
DE (2) DE19901125C1 (fr)
PT (1) PT1020653E (fr)

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AU2013313025B2 (en) * 2012-09-05 2017-10-19 Branach Technology Pty Ltd Improved releasable coupling for ladder section and the like
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US9315205B2 (en) * 2014-09-18 2016-04-19 Khai Gan Chuah Folding mechanism of baby stroller
CN109154172B (zh) * 2016-06-14 2021-03-09 伟英企业有限公司 梯子、梯子铰链和相关方法
US11187371B2 (en) * 2016-10-24 2021-11-30 Samsung Electronics Co., Ltd. Apparatus for coupling a plurality of electronic devices
DE202016007250U1 (de) * 2016-11-25 2017-08-11 Otto Ganter Gmbh & Co. Kg Normteilefabrik Rastscheibensatz
USD860476S1 (en) * 2017-01-04 2019-09-17 Tricam Industries, Inc. Hinge for a multi-position ladder
CN109403770B (zh) * 2018-11-30 2023-09-22 宁波市维特建筑五金有限公司 一种铝木复合门窗用隐形铰链
USD966556S1 (en) 2019-12-13 2022-10-11 Murphy Ladder Llc Ladder
CN216767249U (zh) * 2021-01-25 2022-06-17 江苏宙际杰智能科技股份有限公司 一种多功能梯关节
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Also Published As

Publication number Publication date
EP1020653A1 (fr) 2000-07-19
US6330733B1 (en) 2001-12-18
PT1020653E (pt) 2004-11-30
DE19901125C1 (de) 2000-11-16
DE50007572D1 (de) 2004-10-07

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