Rucksack

Abstract

A back system for a rucksack including a harness configured to be at least in part in contact with a user's back in use, and having a back portion of knitted construction and at least one strap extending from the back portion; and a spacing apparatus arranged to create an air gap between at least part of a rear face of the rucksack and the back portion, in use.

1 . A back system for a rucksack comprising:
 a harness configured to be at least in part in contact with a user's back in use, and having a back portion of knitted construction and at least one strap extending from the back portion; and   a spacing apparatus arranged to create an air gap between at least part of a rear face of the rucksack and a user's back, in use.   
     
     
         2 . The back system of  claim 1  wherein the spacing apparatus comprises a stiffening element configured to bow the rear face away from the back portion. 
     
     
         3 . The back system of  claim 2  wherein the stiffening element is curved. 
     
     
         4 . The back system of  claim 2  wherein the stiffening element is connected to the back portion, and wherein the back portion is in tension. 
     
     
         5 . The back system of  claim 1  wherein the spacing apparatus comprises at least one member extending between the rear face of the rucksack and the user's back. 
     
     
         6 . The back system of  claim 5  wherein the spacing apparatus comprises at least one member extending from an upper end of the back portion and at least one member extending from a lower end of the back portion. 
     
     
         7 . The back system of  claim 5  wherein the or each member is a pad. 
     
     
         8 . The back system of  claim 7  wherein the or each pad is secured to the back portion. 
     
     
         9 . The back system of  claim 1  wherein the strap is of knitted construction. 
     
     
         10 . The back system of  claim 9  wherein the strap comprises padding material, and wherein the padding material is knitted into the strap. 
     
     
         11 . The back system of  claim 9  wherein the strap is tubular. 
     
     
         12 . The back system of  claim 1  wherein the strap is a shoulder strap extending from a top end of the back portion. 
     
     
         13 . The back system of  claim 12  wherein the or each shoulder strap is integral with the back portion. 
     
     
         14 . The back system of  claim 1  wherein the strap or straps comprise two hip portions extending from the back portion, and arranged to extend around a portion of a user's torso in use. 
     
     
         15 . The back system of  claim 1  wherein the knitting pattern varies in density across the back portion. 
     
     
         16 . The back system of  claim 15  wherein the knitting pattern is tighter at a point of attachment to a body of the rucksack. 
     
     
         17 . The back system of  claim 16  wherein the knitting pattern is relatively open where greater airflow through the back portion is required. 
     
     
         18 . A rucksack comprising a back system for a rucksack, the back system comprising:
 a harness configured to be at least in part in contact with a user's back in use, and having a back portion of knitted construction and at least one strap extending from the back portion; and   a spacing apparatus arranged to create an air gap between at least part of a rear face of the rucksack and a user's back, in use.   
     
     
         19 . A harness for a rucksack, the harness configured to be at least in part in contact with a user's back in use, the harness comprising a back portion and at least one strap extending from the back portion, wherein the back portion and the or each strap are of knitted construction. 
     
     
         20 . A harness according to  claim 19 , wherein the or each strap comprises padding material, and wherein the padding material is knitted into the strap.