Lock-out for empty load device

Details Lock-out for empty load device Lock-out for empty load device

B - Operations, Transporting

60

T

B60T 8/18 (2006.01)

Patent

CA 2676530

The present empty/ load device (10) includes a lock-out mechanism (80) to prevent proportioning of the inlet (20) pressure to the outlet (22) when activated. According to the first invention, the lock-out mechanism (80) includes a lock-out valve (90), in a lock-out position [Figure 4], pneumatically preventing proportioning of the inlet (20) pressure to the outlet (22). A first spring (100) biases the lock-out valve (90) from the lock-out position [Figure 4]. A detent (110,116) engages the lock-out valve (90) and holding the lock-out valve (90) in the lock-out position [Figure 4] According to the second invention, the lock-out mechanism (80) includes a lock-out valve (90) which has an initial position [Figure 3] allowing the proportioning of the inlet (20) pressure to the outlet (22) and a lock-out position [Figure 4] pneumatically preventing proportioning of the inlet (20) pressure to the outlet (22).

L'invention concerne un dispositif vide chargé (10) comprenant un mécanisme de verrouillage (80) empêchant la répartition de la pression d'alimentation (20) par rapport à la sortie (22) quand il est activé. Selon la première invention, le mécanisme de verrouillage (80) comprend un clapet de verrouillage (90), dans une position de verrouillage [Figure 4], empêchant pneumatiquement la répartition de la pression d'alimentation (20) par rapport à la sortie (22). Un premier ressort (100) déplace le clapet de verrouillage (90) par rapport à la position de verrouillage [Figure 4]. Un encliquetage (110, 116) engrène le clapet de verrouillage (90) et maintient le clapet de verrouillage (90) dans la position de verrouillage [Figure 4]. Selon la deuxième invention, le mécanisme de verrouillage (80) comprend un clapet de verrouillage (90) qui a une position initiale [Figure 3] permettant la répartition de la pression d'alimentation (20) par rapport à la sortie (22) et une position de verrouillage [Figure 4] empêchant pneumatiquement la répartition de la pression d'alimentation (20) par rapport à la sortie (22).

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