FEM European Materials Handling Federation www.fem-eur.com 0.01.017 FEM 4.005 (4t Edition) Guideline / Indurial trucks 90 acking aisle widt
Tale of Contents Introduction... 3 1 Scope... 3 Normative References... 3 3 Terms and definitions... 3 3.1 Operating aisle widt... 3 3. Operating aisle widt required for 90 acking (90 operating aisle)... 3 3.3 Manoeuvring allowance... 3 4 Determination of te operating aisle widt for 90 acking.. 4 4.1 Periperal conditions... 4 4. Influence of indurial truck design and unit load dimensions... 4 5 Stacking aisle as traffic route... 7 Biliograpy... 7
Introduction Information for te determination of te acking aisle widt as een included until now in te illurated terminology of FEM IV and in te tecnical note, FEM IV-TN01. Tis information does not, owever, cover all te periperal conditions included in tis new guideline. TN01 is replaced y tis guideline. Tis document assumes tat forklift trucks are driven y trained and qualified operators. 1 Scope In tis guideline, te determination of te 90 acking aisle widt as een defined for major indurial truck types. Articulated counteralance trucks are not included in tis document. NOTE: Tis metod of calculation, due to its simpliic nature, may not necessarily represent te minimum possile safe acking aisle widt. More sopiicated metods are availale and may e more suitale particularly wen long or wide loads are eing andled. BITA guidance note GN9 is an example of suc a metod. Normative References ISO 5053-1 EN 15878 Indurial trucks -- Terminology and classification -- Part 1: Types of indurial trucks Steel atic orage syems Terms and definitions 3 Terms and definitions Te following tales compares te determination of noise emissions and te respective information y an example of counteralanced lift trucks. 3.1 Operating aisle widt Minimum dimension across te aisle at any level etween eiter unit loads located in teir nominal position or etween te rack ructure components. [Ref EN 15878] 3. Operating aisle widt required for 90 acking (90 operating aisle) Operating aisle widt required for elevated acking operations wit te unit load perpendicular to te aisle axis. In tis operation, te unit load is only moved witin te operating aisle widt wil aligning it wit te orage location in te rack. 3.3 Maneuvering allowance Minimum dimension (total clearance on ot sides) y wic te teoretical aisle widt determined from te dimensions of te indurial truck and te unit load is increased to give te operational aisle widt. NOTE: Te maneuvering allowance is divided equally over ot sides of te aisle. 3
4 Determination of te operating aisle widt for 90 acking 4.1 Periperal conditions In general, 00mm is adopted as te maneuvering allowance (dimension "a" in figures to ) and gives satisfactory levels of safe operation. However, due to oter factors, it may e necessary to increase te maneuvering allowance. For example: - unusual load dimensions wic make precise maneuvering and acking difficult; - productivity requirement; - operator skills. For pederian controlled trucks te minimum operating aisle widt is calculated ased on te tiller at te upper driving position. NOTE: It is normal practice to use a 00mm dimension is to enale comparison etween different trucks designs and sizes. 4. Influence of indurial truck design and unit load dimensions Te load lengt l and load widt 1 sall e determined from te actual dimensions of te unit loads to e ored including any load overang (if present) see Figure 1. NOTE: Indurial truck data seets (VDI 198) are typically ased on andard pallet sizes i.e. 100 800 and 100 1000, witout load overang. Tere are a numer of possile geometrical situations of truck and unit load to calculate te aisle widt and te large value sall e taken from te equations in figures to. NOTE: If unit loads at floor level are positioned using anoter type of truck tis may e possile witout turning troug 90 and witout entering te rack. Figure 1: Examples of pallets wit overanging loads, resulting in an overall dimension of te unit load larger tan te perimeter of te pallet 4
Figure : Four weel lift truck (point of rotation outside axle centre) 1 R ( ) ( ) + x + 13 + + 1 A Wa x + a if A W R + a > + < 1 1 a + if 13 and 13 1 1 A + 13 + R + a if + 13 > 13 5
Figure 4: Tree weel fork-lift truck (point of rotation in centre of axle) Figure 3: Reac truck (point of rotation in centre of axle) R ( ) ( 1 ) + x + A W + R + a < 1 a if 1 1 A + R + a if > R ( ) ( 1 ) x + R ( 1 ) x + A W + R + a R < a if A R + R + a R > if
Figure 5: Hig lift pallet truck Figure : Low lift pallet truck R ( ) ( 1 ) x + R ( 1 ) x + A < Wa + R + a if R if A R + R + a R > R ( 1 ) x + A < Wa + x + a if R A R + x + a if R > 5 Stacking aisle as traffic route If te aisle is also used as a traffic route it sall e cecked weter te safety diances are in accordance wit guidelines given in 89/54/EEC, wit its implementation respectively transposition into nation-al legislation (national regulations may specify different safety diances). Biliograpy BITA GN9 89/54/EEC VDI 198 90 acking aisle widts Britis Indurial Truck Association Workplace requirements Type seets for indurial trucks 7
Te recommendations and advice contained in tis Guidance Note are ased on specifications, procedures and oter information tat ave een collected from te FEM from its memers. Tey represent wat is, as far as FEM is aware, te e availale data at te time of pulication on te inruction and use of te equipment concerned in te general conditions descried and are intended to provide guidance for suc use. Te suitaility of tis Guidance Note mu e determined y te judgement of te person applying it in accordance wit te conditions in wic use is envisaged and suject to all relevant atutory requirements. FEM accepts no responsiility for te recommendations, advice, atements and conclusions expressed or implied and gives no warranty, representation or assurance wit respect to te accuracy or validity of te same. FEM European Materials Handling Federation www.fem-eur.com Copyrigt FEM