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Angle adjuster of seat

A seat recliner and locking technology, which is applied to movable seats and other directions, can solve the problems such as the torque drop of the recliner, the uneven locking force of the locking pinion plate, and the different locking force, so as to achieve assembly The error is easy to control, the fine blanking die is simplified, and the external size is small.

Active Publication Date: 2014-09-03
YANFENG ADIENT SEATING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. To manufacture these two types of locking tooth plates with different shapes, two sets of fine blanking dies are required, which increases the manufacturing cost, assembly cost and management cost. At the same time, the two types of locking tooth plates with different shapes The plate is made of two sets of fine blanking dies, and the error of the two types of locking pinion plates with different shapes will be different, which reduces the stability of the recliner during assembly and use.
[0005] 2. Two types of locking tooth plates with different shapes are used. In the locked state, one type of locking tooth plate forms a two-point contact with the outer periphery of the locking cam, while the other type of locking tooth plate There is only one point of contact between the plate and the outer periphery of the locking cam, which will cause different locking forces between the locking pinion plates of different shapes and the internal teeth on the outer ring gear, so that each locking pinion plate Unequal locking force
[0006] In addition, for most of the current recliners, the cam return spring and the locking pinion plate are installed on the same plane of the fixing plate. This installation method will reduce the number of locking pinion plates and reduce the torque of the recliner.

Method used

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  • Angle adjuster of seat
  • Angle adjuster of seat
  • Angle adjuster of seat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] see figure 1 and figure 2 , the seat recliner shown in the figure includes an external tooth plate 100, an unlocking cam 200, a locking cam 300, six locking small tooth plates 400, three cam return springs 500, and a fixed plate 600 And a hoop 700.

[0050] The structure of the outer tooth plate 100 is the same as that of the existing recliner, and it is also a dome-shaped structure. Six bosses 110 are evenly distributed on the outer cover surface of the dome. The six bosses 110 is connected with the seat back connecting plate (not shown in the figure), and an internal ring gear 120 is arranged on the inner cover surface periphery of the dome cover, and a hole 130 is opened in the center of the dome cover, which is convenient for the camshaft (not shown in the figure). out) through.

[0051] The fixed plate 600 has a circular structure, and on the side of the fixed plate 600 relative to the outer tooth plate 100, that is, on the inner surface 610, there are six fan-...

Embodiment 2

[0072] see Figure 13 and Figure 14, the difference between this embodiment and embodiment 1 is that five locking tooth plates 400 with exactly the same shape are used, and the locking small tooth plates 400 of this embodiment are also identical in shape to the locking small tooth plates of embodiment 1. . The structures of the outer tooth plate 100, an unlocking cam 200, a locking cam 300, three cam return springs 500, a fixing plate 600 and a hoop 700 of this embodiment are all the same as those of the embodiment 1. The locking force of this embodiment can reach 5000Nm.

Embodiment 3

[0074] see Figure 15 and Figure 16 , the difference between this embodiment and embodiment 1 is that four locking tooth plates 400 with exactly the same shape are used, and the locking small tooth plates 400 of this embodiment are also identical in shape to the locking small tooth plates of embodiment 1 . The structures of the outer tooth plate 100, an unlocking cam 200, a locking cam 300, three cam return springs 500, a fixing plate 600 and a hoop 700 of this embodiment are all the same as those of the embodiment 1. The locking force of this embodiment can reach 4000Nm.

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PUM

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Abstract

The invention discloses an angle adjuster of a seat. The angle adjuster comprises an outer toothed plate, an unlocking cam, a locking cam, a plurality of locking small toothed plates, a plurality of cam return springs, a fixed plate and a hoop. The angle adjuster is characterized in that a plurality of locking units with completely same shape are uniformly distributed on the outer periphery of the locking cam, and the shapes of all the locking small toothed plates are the same; in a locking state, a first inner locking boss on the inner periphery of each locking small toothed plate is in contact with a second outer locking boss in a locking unit, and a second inner locking boss is in contact with a first outer locking boss in an adjacent locking unit; in an unlocking state, the first inner locking boss on the inner periphery of each locking small toothed plate falls into an outer groove between two adjacent locking units, the second inner locking boss is not in contact with the second outer locking boss in the locking unit, and the first outer locking boss in each locking unit falls into an inner groove of the corresponding locking small toothed plate. According to the angle adjuster, a fine blanking mould is simplified, the manufacturing, installation and management costs are reduced, and the locking force is also improved.

Description

technical field [0001] The invention relates to the technical field of seat accessories, in particular to a seat recliner. Background technique [0002] At present, in order to improve the locking strength of the seat recliner, it is generally equipped with a plurality of locking tooth plates, and these multiple locking tooth plates move radially outward under the action of the locking cam, so that The locking teeth of the locking teeth mesh with the inner teeth on the outer ring gear to lock. When unlocking, these locking small tooth plates move radially inward under the action of the rotation of the unlocking cam, so that the locking teeth on their outer edges It is unlocked by disengagement with the inner teeth on the outer ring gear. [0003] For recliners with multiple locking tooth plates, it is necessary to carry out special-shaped design on the outer periphery of the locking cam and the locking small tooth plates. The relationship of the concession when the tooth p...

Claims

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Application Information

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IPC IPC(8): B60N2/22
Inventor 肖又辉
Owner YANFENG ADIENT SEATING CO LTD