A multi-stage force-limiting safety belt retractor
A technology for a seat belt retractor and a seat belt, which is applied to belt tensioners and other directions, can solve the problems of unfavorable use of various vehicle models and high cost, and achieve the effects of simple structure, low cost, and improved popularity.
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Embodiment 1
[0040] Example 1, see see image 3 , Figure 4 with Figure 12 , this example is a DLL decreasing force limit adjustable-push force limit rod solution.
[0041] The multi-stage force-limiting safety belt retractor of this example is composed of a stop wheel 5, a threaded sleeve 4, a multi-stage force-limiting rod 3, and a reel 2. In this example, the internal spline structure is the reel spline structure 2-2 inside the reel 2, the first-stage starting torque is the starting torque of the first-stage force limiting rod 3-5, and the other-stage starting torque is the first-order force limiting rod 3-5. The starting torque of the second-order force limiting rod 3-2, the starting torque of the first-order force limiting rod 3-5 is relatively large, and the starting torque of the second-order force limiting rod 3-2 is relatively small.
[0042] In the initial assembly state, the reel spline structure 2-2 is engaged with the force limiting rod spline structure 3-3, and there is a...
Embodiment 2
[0045] Example 2, see see Figure 5 , Image 6 with Figure 12 , this example is a DLL decreasing force limit adjustable-force limit rod fixed solution.
[0046] The multi-stage force-limiting safety belt retractor of this example is composed of a stop wheel 5, a threaded sleeve 4, a multi-stage force-limiting rod 3, and a reel 2. In this example, the internal spline structure is the threaded sleeve spline structure 4-4 inside the threaded sleeve 4, the first-stage starting torque is the starting torque of the first-stage force limiting rod 3-5, and the other-stage starting torque is the first-order force limiting rod 3-5. The starting torque of the second-order force limiting rod 3-2, the starting torque of the first-order force limiting rod 3-5 is relatively large, and the starting torque of the second-order force limiting rod 3-2 is relatively small.
[0047] In the initial assembly state, the threaded sleeve spline structure 4-4 is engaged with the force limiting rod sp...
Embodiment 3
[0050] Example 3, see see Figure 7 , Figure 8 with Figure 13 , this example is a PLL incremental force-limiting adjustable-push force-limiting rod solution.
[0051] The multi-stage force-limiting safety belt retractor of this example is composed of a stop wheel 5, a threaded sleeve 4, a multi-stage force-limiting rod 3, and a reel 2. In this example, the internal spline structure is the reel spline structure 2-2 inside the reel 2, the first-stage starting torque is the starting torque of the second-order force limiting rod 3-2, and the other-stage starting torque is the second-order force limiting rod 3-2. The starting torque of the first-order force limiting rod 3-5, the starting torque of the first-order force limiting rod 3-5 is larger, and the starting torque of the second-order force limiting rod 3-2 is smaller.
[0052] In the initial assembly state, the reel spline structure 2-2 is disengaged from the force limiting rod spline structure 3-3, and there is a gap be...
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