Dual spring tension reducer
First Claim
1. A dual tension safety belt retracting device comprising:
- a frame (26), a spool (70b) rotatably mounted on the frame (26), for storing safety belt webbing (84) including first and second ratchet wheels (74b, 76b);
an outer tube (112), extending through and connecting the first and second ratchet wheels;
an inner shaft (130) extending through and rotatably disposed in the outer tube (112);
a main, high torque (140) rewind spring to apply a rewind bias to the inner shaft (130);
a low torque, rewind spring (158), connecting the outer tube (112) to a control ratchet wheel (154), is connected to one end of the inner shaft (130) opposite the main rewind spring (140);
control pawl means (200) for engaging the control ratchet wheel (154), rotatably movable between a first position disengaged from the control ratchet wheel (154) and a second position in engagement with the control ratchet wheel (154) wherein when the control pawl means is in its second position it is effective to block out the main rewind spring from exerting a bias on the safety belt webbing, andmoving means (224) for causing the control pawl means (200) to move between the first and second positions.
2 Assignments
0 Petitions
Accused Products
Abstract
A dual tension safety belt retracting device comprising: a frame (10), a spool (70b) rotatably mounted on the frame, for storing safety belt webbing (84). The device including first and second ratchet wheels (74b, 76b) and an outer tube (112), extending into and connecting the first and second ratchet wheels. An inner shaft (130) extends through and is rotatably disposed in the outer tube (112); a main, high torque (140) rewind spring is provided to apply a rewind bias to the inner shaft (130). A low torque, rewind spring (158) connects the outer tube (112) to a control ratchet wheel (154); a cap (170 interconnects the control ratchet wheel (154) to the inner shaft (130). A control pawl (200) for engaging the control ratchet wheel (154), is rotatably mounted relative to the frame (26), and movable between a first position disengaged from the control ratchet wheel (154) and a second position in engagement with the control ratchet wheel (154) wherein when the control pawl is in its second position it is effective to block out the main rewind spring from exerting a bias on the safety belt webbing. The control pawl (200) being move between the first and second position under control of selected mechanisms.
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Citations
11 Claims
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1. A dual tension safety belt retracting device comprising:
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a frame (26), a spool (70b) rotatably mounted on the frame (26), for storing safety belt webbing (84) including first and second ratchet wheels (74b, 76b); an outer tube (112), extending through and connecting the first and second ratchet wheels; an inner shaft (130) extending through and rotatably disposed in the outer tube (112); a main, high torque (140) rewind spring to apply a rewind bias to the inner shaft (130); a low torque, rewind spring (158), connecting the outer tube (112) to a control ratchet wheel (154), is connected to one end of the inner shaft (130) opposite the main rewind spring (140); control pawl means (200) for engaging the control ratchet wheel (154), rotatably movable between a first position disengaged from the control ratchet wheel (154) and a second position in engagement with the control ratchet wheel (154) wherein when the control pawl means is in its second position it is effective to block out the main rewind spring from exerting a bias on the safety belt webbing, and moving means (224) for causing the control pawl means (200) to move between the first and second positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification