ES476414A1 - Escalera de mano metalica - Google Patents

Escalera de mano metalica

Info

Publication number
ES476414A1
ES476414A1 ES476414A ES476414A ES476414A1 ES 476414 A1 ES476414 A1 ES 476414A1 ES 476414 A ES476414 A ES 476414A ES 476414 A ES476414 A ES 476414A ES 476414 A1 ES476414 A1 ES 476414A1
Authority
ES
Spain
Prior art keywords
flanges
web
section
rung
stiles
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
Application number
ES476414A
Other languages
English (en)
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.)
CIZELY FAB METALL
Original Assignee
CIZELY FAB METALL
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
Priority claimed from FR7800588A external-priority patent/FR2413535A1/fr
Priority claimed from FR7811808A external-priority patent/FR2423624A2/fr
Priority claimed from FR7817233A external-priority patent/FR2427459A2/fr
Priority claimed from FR7834039A external-priority patent/FR2442332A2/fr
Application filed by CIZELY FAB METALL filed Critical CIZELY FAB METALL
Publication of ES476414A1 publication Critical patent/ES476414A1/es
Expired legal-status Critical Current

Links

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
    • E06C7/085—Connections between rungs or treads and longitudinal members achieved by deforming the rung or the stile

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)

Abstract

Escalera de mano metálica , cada uno de cuyos montantes está constiuido por un perfil en U o en I reforzado a la altura de cada uno de los extremos de algunas de las barras, por lo menos, por una contraplaca que refuerza el montante, caracterizada porque cada una da las paredes longitudinales del perfil incluye, en la proximidad de su borde libre, una parte angular que está en posición retrasada respecto a este borde libre, con objeto de formar un nervio, porque la contraplaca reposa sobre estas partes angulares, estando mantenida lateralmente por los nervios, y está provista de dientes o patas introducidas en aberturas practicadas en dichas partes angulares, porque, de manera en sí conocida, la barra lleva, en la proximidad de su extremo, un resalto que se encuentra en contacto con uno de los elementos constituidos por el alma del perfil y la contraplaca, estando su borde extremo engastado en el exterior del otro elemento, de modo que la contraplaca está bloqueada sobre las partes angulares de los montantes e imposibilitada de desplazarse con relación a estos montantes.
ES476414A 1978-01-02 1978-12-28 Escalera de mano metalica Expired ES476414A1 (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7800588A FR2413535A1 (fr) 1978-01-02 1978-01-02 Perfectionnements apportes aux echelles metalliques
FR7811808A FR2423624A2 (fr) 1978-04-17 1978-04-17 Perfectionnements apportes aux echelles metalliques
FR7817233A FR2427459A2 (fr) 1978-06-02 1978-06-02 Perfectionnements apportes aux echelles metalliques
FR7834039A FR2442332A2 (fr) 1978-11-24 1978-11-24 Perfectionnements apportes aux echelles metalliques

Publications (1)

Publication Number Publication Date
ES476414A1 true ES476414A1 (es) 1980-01-16

Family

ID=27446374

Family Applications (1)

Application Number Title Priority Date Filing Date
ES476414A Expired ES476414A1 (es) 1978-01-02 1978-12-28 Escalera de mano metalica

Country Status (9)

Country Link
US (1) US4219102A (es)
EP (1) EP0002994B1 (es)
JP (1) JPS54130277A (es)
AU (1) AU521816B2 (es)
BR (1) BR7808558A (es)
CA (1) CA1097282A (es)
DE (1) DE2862162D1 (es)
ES (1) ES476414A1 (es)
GB (1) GB2012853B (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130023B (en) * 1979-12-20 1984-10-31 Bicc Plc Cable ladder
JPS6219839Y2 (es) * 1980-06-13 1987-05-20
FR2528132B1 (fr) * 1982-06-03 1985-09-27 Cegedur Dispositif d'assemblage d'un tube et d'un element de tole
DE3227363A1 (de) * 1982-07-22 1984-01-26 Hymer-Leichtmetallbau, 7988 Wangen Holm-stufenverbindung bei einer leichtmetall-leiter
US5170552A (en) * 1989-09-28 1992-12-15 Emerson Electric Co. Method of manufacturing a rolling tower scaffold
CA2038187A1 (en) * 1991-03-13 1992-09-14 Michael S. Thompson Box ladder and method of manufacture thereof
GB9108897D0 (en) * 1991-04-25 1991-06-12 Clarke James B Ladder rung and stile assembly 1704
FR3012168B1 (fr) * 2013-10-21 2016-02-19 Aud Innov Barreau et sa fixation dans les montants d'une echelle
CN105952371A (zh) * 2016-07-21 2016-09-21 辽宁工程技术大学 一种多功能变形靠梯
US11885181B2 (en) 2019-12-27 2024-01-30 Werner Co. Box rail backup and method
GB2610214B (en) * 2021-08-27 2024-02-28 Treemagineers Ltd Pulley assembly

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE211809C (es) *
US1122019A (en) * 1912-08-15 1914-12-22 Gen Electric Electric switch.
US1459966A (en) * 1920-10-14 1923-06-26 Roy H Anderson Garment fastener
US2618427A (en) * 1947-03-27 1952-11-18 Hudmon S Langley Ladder
GB667843A (en) * 1950-03-31 1952-03-05 W A Lloyd S Cycles Ltd Improvements relating to ladders
GB678842A (en) * 1950-04-27 1952-09-10 Cyril Harcourt Matthews Improvements in or relating to metal ladders
FR64163E (fr) * 1952-12-01 1955-11-08 Aluminium Francais Procédé de construction d'échelles métalliques
FR1122019A (fr) * 1955-02-01 1956-08-30 Nusbaumer & Cie Perfectionnement à la construction des échelles
US3004625A (en) * 1959-09-01 1961-10-17 Bauer Mfg Company Ladder
US3327385A (en) * 1963-01-04 1967-06-27 Harsco Corp Method of making ladders
FR1459289A (fr) * 1965-10-08 1966-04-29 Tubesca Echelle à montants tubulaires
FR1459966A (fr) * 1965-10-12 1966-06-17 Tubesca échelle perfectionnée à barreaux tubulaires
US3608256A (en) * 1967-12-01 1971-09-28 Reynolds Metals Co Step construction
DE1784533C3 (de) * 1968-08-16 1974-01-03 Herbert 7100 Heilbronn Ernst Verbindung eines Stabs mit einem Vierkantrohr
US4060150A (en) * 1973-09-07 1977-11-29 Peter Hughes Ladder kit
US3997027A (en) * 1974-11-04 1976-12-14 Patterson Allen S Ladder
US3949836A (en) * 1974-11-08 1976-04-13 Russo Ornamental Iron Products, Inc. Ladder structure

Also Published As

Publication number Publication date
GB2012853A (en) 1979-08-01
DE2862162D1 (en) 1983-02-24
CA1097282A (fr) 1981-03-10
GB2012853B (en) 1982-06-23
BR7808558A (pt) 1979-08-07
JPS54130277A (en) 1979-10-09
EP0002994A2 (fr) 1979-07-11
AU521816B2 (en) 1982-04-29
EP0002994A3 (en) 1979-07-25
EP0002994B1 (fr) 1983-01-19
AU4294678A (en) 1979-07-12
US4219102A (en) 1980-08-26

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971201