EN
A briefcase has no visible frame. What holds its shape and takes its abuse is a set of small metal parts: the lock, the clasps, the feet, the D-rings, and the rivets that tie them to the shell. Working with a custom laptop briefcase manufacturer on structure is largely a hardware conversation, and buyers who approve the silhouette first discover in month four that the tuck lock does not latch on the tenth opening.
Hardware Is The Briefcase's Structure In Plain Sight
Three systems do the structural work on a briefcase, and all three are hardware.
The first is the closure, which holds the bag shut and takes the load every time it is carried by the handle with the case swinging. The second is the base line, meaning the feet and the riveted corners that keep the bag off wet floors and take the impact when it is set down. The third is the attachment points, the D-rings and their backing, which convert a hand-carried case into a shoulder-carried one and take the full load when they do.
Omnia alia sunt ornamenta. Haec distinctio magni momenti est in statu citandi, quia emptor qui pecuniam e instrumentis ad textilia transferat, sacculum habet, qui melius videtur sed peius fungitur, et defectus in tempore garantis, non in ostentatione, apparet.
Claves, Fibulae, Et Quae Pati Debebunt
Electio clausurae pretium et modum defectus magis quam aliud instrumentum determinat.
Fibula occludens: 4 000 ad 6 000 ciclos aperiendi et claudendi, 0,28 ad 0,55 USD per copiam, nulla clavis, et mecanismus in lingua attritur.
Clavis: 500 ad 1 000 conversiones clavis, 0,60 ad 1,20 USD, et clavis amittitur intra annum in plurimis programmatibus corporibus.
Clavis numerica: 1 500 ad 3 000 ciclos rotandi disci, 1,40 ad 2,80 USD, et mechanismus reponendi est punctum infirmum.
Clasps magneticus: vis tenendi 25 N, nullus limitus ciclorum nominandus, et deficit per debilitationem, non per fracturam.
Uncus adhaerens et anulus D: clausura minime cara, et quae casu aperitur in ascensore pleno.
Pro programmatibus corporis, norma est specificare tuck lock cum corpore ex zinci et ferri legatione et molla ex accipitro inox, quia nullam clavem habet ut amittatur et modus defectus eius est lingua attrita potius quam discus impeditus. In offerta quae casum cludentem requirit, unitas combinationis specificatur et nos mechanismum reponendi separatim citamus, quia illa pars est quae advenit ut querela.
Experientia quae magis valet quam certificatum
Omnem modellem clausurae quam utimur 5 000 vicibus in machina percurrimus, cum onus 3 kg a casu pendeat, et notamus numerum cursum quo catenula primo non amplius adhaeret. Clausura quae adhaeret secundo conatu in cursu 2 800 iam querela clientis est, etiamsi adhaerere adhuc possit. Hoc criterium in inspectione nostra advenientium pro lotis ferramentorum scriptum est, et est numerus utilissimus in certificato ferramenti.
Pedes, Rivetæ, Et Linea Basalis
Maletta saepius deponitur quam portatur, et basis omnia sustinet.
Pedes: 8 ad 10 mm, quattuor aut quinque per basim, eodem in finito ac clavis, et adfixi per tabulam basim potius quam per solam crustam
Reinfortium angulare: corium rivatum aut pannus 1680D in singulo angulo basis, quadratum minimum 40 mm
Distantia rivetorum: 40 ad 50 mm inter se in lamina cinguli, ut rivetus laceratus non solvat totam adfixionem
Substantia rivetorum: discus 8 mm in facie interna, quod est quod impedit rivetum per unam crustae stratum trahi
Tabula basim: PE 1.5 mm, ita positum ut pedes onerent tabulam nec telam inter se
Particula pedum est ubi pleraeque programmatum pretiosorum deficiunt. Pedis rivetus per unam crustae stratum omnem ictum in circulum telae 12 mm transferit, et tela circa rivetum intra unum annum laceratur. Pedis qui per tabulam transit onus per totam basim diffundit, et basis manet.
Nos etiam verificamus ut pedes vere sublevent saccum. In casu cum gusset 60 mm, pes 8 mm elevat basim prorsus supra humida pavimenta, at pes 4 mm non facit. Hoc videtur levius donec emptor in pluvioso mercatu nuntiat aquam intrare per suturam basis.
Quid Fabricator Ad Hoc Vaginulae Pro Laptop Specitat De Apparatu
Noster apparatus programmatis schedulae pro vaginula sex lineas habet, et unaquaeque est specificatio, non tantum praefertio.
Typus et modelus clausurae, cum indicato ciclo portae et criterio catenulae supra
Finis et lotus: unus codex pro omni metallo visibili, annotatus in tabella cursus
Modus adiungendi: rivetus retrofirmatus, columna vitarum cum lavacro, aut anulus textilis bar-tactus
Tensio portae: 90 N pro quolibet apparatu adfixo tabulae, 600 N pro quolibet apparatu in via oneris
Plumbatio et corrosio: horae pulveris salinarum a mercatu emptoris statutae, citatae una cum pretio apparatus
Partes de reposito: clavis et paria D-ring substituenda ad 1 percentum quantitatis ordinis
The spare parts line is the one buyers skip and later request in a hurry. A corporate fleet of 3,000 cases will lose keys and break tuck lock tongues, and a brand that cannot supply a replacement part sends the whole bag back into the return stream. We quote lock pairs at 1 percent of the order as standard on corporate programs, and it costs about 0.02 USD per bag.
Where the hardware budget runs out
A briefcase built with a tuck lock, four backed feet, riveted corners, and stainless springs sits about 1.10 to 1.60 USD above the same bag with a snap closure, two plastic feet, and unbacked rivets, depending on the finish and the quantities. Below roughly 7.00 USD FOB at 1,000 units, something in that list is going to move, and it is normally the backing and the feet.
We state this clearly at the quotation stage, and we will develop a lower-cost version. What we will not do is describe a bag with a single-layer riveted foot as suitable for a 9 kg daily load, because the return rate would render the cost saving meaningless.
What the buyer observes when a case is handled
From your side, the hardware test is a thirty-second sequence: open and close the lock ten times and count any second attempts; lift the case by the handle with a device inside and listen for a click; set it down on a hard floor and push it gently sideways to see whether it slides on its feet or grinds on the base fabric. These three checks assess closure, attachment, and base line—the points where a briefcase actually fails.
A Hardware Schedule
Send these lines with a briefcase brief before sampling.
Closure: tuck lock, zinc alloy body, stainless spring, 5,000-cycle gate
Latch criterion: engages on the first attempt at 5,000 cycles under 3 kg
Finish: matte gunmetal, one lot code, recorded on the run card
Pedes: quinque, 8 mm, adfixi per tabulam basim PE crassitudinis 1.5 mm
Pellucida angulorum: quadrata, 40 mm, adfixa clavis, in quattuor angulis basim
Substantia clavium: lavabrum 8 mm intra singulos clavos
Anulus D: filum 4 mm, soldatum, porta trahendi 600 N, subiecta fascia textilis
Adfixiones tabularum: porta trahendi 90 N, omne ferramentum
Reservatae: copiae clavium et anuli D ad 1 percentum quantitatis ordinis
Verificatio: iugum cycli clavium cum testu trahendi, photographatum pro singula caterva
Haec linea verificandi est quae listam ferramenti in regulam convertit, et tempus circa 40 minuta pro singula caterva in nostro banco occupat.
Primum mittite requisitum clausurae
Dicite nobis utrum licitatio exigat casum cludentem, onus quod saccus feret, et finitionem quam adaequare debetis. Nos citabimus clausuram, lineam basim, et modum adfixionis ut lineas separatas, ut singula elementa suum pretium ostendant et vos decernere possitis quod elementum pretium portet.
Contact [email protected] or visit www.tianqinbag.com ad petendum exemplaria, ad obtinendum pretium fabricae, aut ad incipiendum proiectum OEM/ODM cum Quanzhou Tianqin Bags Co., Ltd. Tempus ducens pro exemplariis est 7–15 dies operativi. Septemdecim annos fabricandi saccos in Quanzhou; exportationes in plus quam 50 nationes; relationes examinorum SGS, quae continent REACH, CPSIA et Prop 65, pro petitione.
Nuntii Calidi
