desain Backpack

BACKPACK2

Sebuah Ransel di musim gugur umum menjadi salah satu dari empat kategori: tanpa bingkai, bingkai eksternal, internal frame, dan bodypack. Bingkai pak, ketika hadir, berfungsi untuk mendukung pak dan mendistribusikan berat isinya seluruh tubuh lebih tepat, dengan mentransfer banyak berat badan untuk pinggul dan kaki. Sebagian besar berat karena diambil dari bahu, mengurangi kemungkinan cedera dari tekanan tali bahu (banyak ransel dilengkapi semata-mata dengan tali bahu dapat mempengaruhi postur orang yang membawa lebih dari 14 kg (30 lbs)), serta menjadi kurang membatasi rentang tubuh bagian atas gerak. Kebanyakan ransel mampu ditutup dengan baik mekanisme gesper, ritsleting, atau tipe penutupan kering-tas meskipun beberapa model menggunakan tali dipasang dengan kunci kabel untuk kompartemen utama.

Sebuah bodypack adalah ransel dilengkapi dengan satu atau lebih kantong yang tersuspensi di dada pemakainya dan dimuat dalam sedemikian rupa sehingga beban di depan dan beban di belakang dekat dengan sama. Mayoritas beban di bodypack sebuah dibawa oleh pinggul. Ideal sistem beban tercatat tidak harus mengganggu postur alami pemakainya, keseimbangan dan manuver. beban harus tersebar ke struktur rangka dalam bahkan cara, dan tidak harus menghasilkan kekuatan yang tidak seimbang pada tubuh.

Frameless

Yang paling sederhana ransel desain tas yang melekat pada satu set tali bahu. paket tersebut digunakan untuk transportasi umum barang, dan memiliki kapasitas variabel. Desain sederhana terdiri dari satu saku utama. Hal ini dapat dikombinasikan dengan anyaman atau pintal tali, sementara model yang lebih canggih menambahkan kantong tambahan, tali pinggang, tali dada, tali bahu empuk, punggung empuk, dan bahan kadang-kadang reflektif untuk keselamatan ditambahkan pada malam hari. Paket ini umumnya diproduksi murah.

Beberapa paket luar ruangan, terutama yang dijual untuk hari kenaikan, backpacking ultralight dan gunung kadang-kadang tanpa bingkai juga.

Keselamatan beberapa desain ransel ini telah dikritik oleh Inggris NHS, banyak desain tas yang dianggap "tidak aman" untuk anak-anak.

kemasan bingkai eksternal

paket bingkai eksternal yang dirancang untuk membawa beban berat (> 20 kg atau 40 lb), memberikan pemakainya lebih banyak dukungan dan perlindungan dan distribusi berat yang lebih baik daripada, tas tanpa bingkai diikat sederhana. frame pack kayu yang digunakan selama berabad-abad di seluruh dunia. Otzi Iceman mungkin telah menggunakan salah satu di Copper Age Alpine Italia,[2][3] meskipun beberapa arkeolog percaya frame ditemukan dengan tubuh adalah bagian dari snowshoe a. paket seperti yang umum di militer dan gunung aplikasi;[4] versi metal pertama kali muncul pada pertengahan abad ke-20.

The frame of an external frame pack is typically made from aluminum, other lightweight metal alloy, and recently reinforced synthetic polymers or plastic and is equipped with a system of straps and tautly-stretched netting which prevents contact between the metal frame and user’s back. In addition to comfort, this “stand-off” provides the additional benefit of creating air circulation between the frame and the wearer’s back. For this reason, external frame packs are generally considered to be a “cooler load” than internal frame designs. External frame packs have a fabric “sack” portion which is usually smaller than that of internal frame packs, but have exposed frame portions above and below the sack to accommodate attachment of larger items. In addition, the sack can often be removed entirely, permitting the user to customize the configuration of his load, or to transport a non-conventional load such as a quartered game animal. Military packs are often external frame designs due to their ability to carry loads of different shapes, sizes and weights

Internal frame packs

The internal frame ransel is a recent innovation, invented in 1967 by Greg Lowe, who went on to found Lowe Alpine and Lowepro, companies specializing in backpacks and other forms of carrying bags for various equipment. An internal-frame pack has a large fabric section around an internal frame composed of strips of either aluminum, titanium or plastic, sometimes with additional metal stays to reinforce the frame. A complex series of straps works with the frame to distribute the weight and hold it in place. The internal frame permits the pack to fit closely to the wearer’s back and minimizes shifting of the load, which is desirable when participating in activities that involve upper-body movement such as scrambling over rocky surfaces and skiing. However, the tight fit reduces ventilation, so these type of packs tend to be more sweaty than external frame packs. The internal construction also allows for a large storage compartment; a few lash points (including webbing loops and straps for sleeping bags and other large items) may be present, but as the frame is completely integrated, it is difficult to securely lash larger and heavier items which do not fit inside the compartment to the outside of the pack. Internal frame packs originally suffered from smaller load capacity and less comfortable fit during steady walking, but newer models have improved greatly in these respects. In addition, because of their snug fit, the improved internal frame models have largely replaced external frame backpacks for many activities.

Sports

Sports and hydration backpacks are smaller with a profile closer to the body, wider straps and can come with water bladders and hip belts for running, cycling or hiking. Camelbak is one such company best known for its hydration pack. Running hydration packs are the smallest and lightest, many under 2 litres and most under six litres. They sit low on your back. Compression straps across the top of your body are common as are hip belts. Cycling hydration packs are six to ten litres sitting high on your back. Compression straps across the body are not necessary although weight still needs to be relatively low positioned. Although daypacks are small averaging ten to thirty litres, all Trekking and Hiking hydration packs are generally the largest and heaviest. Thirty five up to sixty five litres and above are common. Compression straps across the body and shoulders as well as hip belts are necessary.


Post time: Apr-23-2016