Offi ce Furniture Buying Guide - Swivel Chairs
1. Seat Height
The seat height should be adjustable to ensure that the user is able to sit with their feet fl at on the fl oor or an adjustable footrest if appropriate and with their knees at a 90 degree angle and slightly higher than their hips. This position reduces the amount of pressure on the lower limbs, helps to maintain the pelvis in an upright position and prevents curvature of the lower spine. All of our task, operator and executive chairs are height adjustable and most feature gas lift adjustment to easily allow the user to modify their height in relation to the height of their workstation.
2. Seat Depth
The depth of the seat should allow for a small clearance between the front edge of the seat and the back of your knees in order to prevent pressure on the network of blood vessels and nerves in the back of the calves. The user should be sat maintaining contact with the chairs backrest and some of our offi ce chairs come with a seat slide mechanism that will facilitate this for people with longer length legs.
3. Backrest The backrest should be set at the right height to provide support to the lower back and follow the natural curve of the spine. YPO offer a number of chairs featuring backrests with additional lumbar support or mesh backs which offers increased ventilation.
4. Armrests
Armrests can support arms so that the shoulders rest at a comfortable position when working. The user’s arms should be at a relaxed 90 degree angle when in contact with the armrests to help them avoid adopting a hunched sitting position. Some of our chairs feature height adjustable arms which enable the chair arms to be adjusted independently from the seat resulting in the effective support of the arms and shoulders.
6. Synchronous Mechanism
The backrest and seat are linked so that the seat tilts backwards in relation to the angle of the backrest. By linking the two, the chair feels more comfortable due to the reclining action which straightens the spine and improves circulation when left in the free fl oating position. Ratio 1:2 body weight tension control provides support for users of various builds and weights.
7. Asynchronous Mechanism As the Sychronous mechanism but with additional seat tilt and backtilt.
5. Permanent Contact Backrest The backrest can be locked in the position the user fi nds most comfortable or left unlocked to free fl oat if preferred. This enables movement of the backrest whilst the user is seated to promote muscle movement and blood fl ow around the body to prevent fatigue.
8. Forward Seat Tilt
Forward seat tilt offers additional fl exibility to the user, and helps improve circulation to abdominal and back muscles by enabling the user to sit leaning forward, improving reach whilst maintaining a 95-100˚ angle between the user’s thighs and back and ensuring the abdomen is not compressed.
136 For exclusive online only off ers, visit
ypo.co.uk
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96 |
Page 97 |
Page 98 |
Page 99 |
Page 100 |
Page 101 |
Page 102 |
Page 103 |
Page 104 |
Page 105 |
Page 106 |
Page 107 |
Page 108 |
Page 109 |
Page 110 |
Page 111 |
Page 112 |
Page 113 |
Page 114 |
Page 115 |
Page 116 |
Page 117 |
Page 118 |
Page 119 |
Page 120 |
Page 121 |
Page 122 |
Page 123 |
Page 124 |
Page 125 |
Page 126 |
Page 127 |
Page 128 |
Page 129 |
Page 130 |
Page 131 |
Page 132 |
Page 133 |
Page 134 |
Page 135 |
Page 136 |
Page 137 |
Page 138 |
Page 139 |
Page 140 |
Page 141 |
Page 142 |
Page 143 |
Page 144 |
Page 145 |
Page 146 |
Page 147 |
Page 148 |
Page 149 |
Page 150 |
Page 151 |
Page 152 |
Page 153 |
Page 154 |
Page 155 |
Page 156 |
Page 157 |
Page 158 |
Page 159 |
Page 160 |
Page 161 |
Page 162 |
Page 163 |
Page 164 |
Page 165 |
Page 166 |
Page 167 |
Page 168 |
Page 169 |
Page 170 |
Page 171 |
Page 172 |
Page 173 |
Page 174 |
Page 175 |
Page 176 |
Page 177 |
Page 178 |
Page 179 |
Page 180 |
Page 181 |
Page 182 |
Page 183 |
Page 184 |
Page 185 |
Page 186 |
Page 187 |
Page 188 |
Page 189 |
Page 190 |
Page 191 |
Page 192
