Eyebolts – Daktronics Single Section DistaView Outdoor LED Scoreboards Generation IV User Manual

Page 94

Advertising
background image

Eyebolts


Almost every display that leaves Daktronics is equipped with eyebolts for lifting the display. There are
two standard sizes of eyebolts: ½

″ and ⅝″.


Load Increase Factor: The load increases as the lift angle (

θ) decreases. The allowable load on the

eyebolts also decreases with the lift angle due the bending stress on the eyebolts. In sum, the smaller
the angle between the cable and the top of the display, the lighter the sign must be to safely lift it. Do
NOT attempt to lift the display when the lift angle is less than 30 degrees.

W= Weight of sign or Section

H= Distance between top of

sign and lift point

L= Length of cable on one side

θ

= Angle between sign and cable

Horizontal Load

Angle

½”

⅝”

Angle Factor

(L/H)

Line Weight/

Line Weight/

90 1.00

θ

Load

Anchor

Load Anchor

60

1.155

90

2600 2600 4000 4000

50

1.305

60

1500 1299 3300 2858

45 1.414

45

650

460

1000

707

30

2.00

30

520 260 800 400



ED7244 Copyright

© 1996-2001

Rev. 4 – 14 March 2001

Daktronics, Inc.

Advertising