CN212289568U

CN212289568U - Automobile seat continuous angle adjuster capable of realizing coaxial circular motion output

Info

Publication number: CN212289568U
Application number: CN202020610314.4U
Authority: CN
Inventors: 孙渝辉
Original assignee: Individual
Current assignee: Chen Xiao
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-01-05
Anticipated expiration: 2030-04-22

Abstract

The utility model discloses a can realize continuous type angle modulation ware of car seat of coaxial circular motion output, including angle modulation ware, fixed disk, wave spring, planet carrier, sun gear, planet wheel, activity dish, shell and backrest, the angle modulation ware comprises fixed disk, wave spring, planet carrier, sun gear, planet wheel, activity dish and shell. The utility model discloses what continuous type angle modulation ware driven backrest did is coaxial circular motion, and the limiting plate is fixed with the clearance of sitting between the connecting plate in the motion process, and the limiting plate of having avoided eccentric swing probably to arouse scrapes to sitting the connecting plate, influences the angle modulation ware operation, produces the problem of abnormal sound. The coaxial circular motion of the backrest also avoids the problems of reduced limiting strength and even limiting failure caused by the fact that the limiting plate is possibly positioned at the outer edge part of the limiting stop point at the position where the limiting plate is contacted with the limiting stop point of the seat connecting plate.

Description

Automobile seat continuous angle adjuster capable of realizing coaxial circular motion output

Technical Field

The utility model relates to a car seat angle modulation ware technical field specifically is a car seat continuous type angle modulation ware that can realize coaxial circular motion output.

Background

The automobile seat angle adjuster is divided into a non-continuous type and a continuous type, a fixed disc of the angle adjuster is used as a fixed piece and welded with a seat connecting plate, and a movable disc is used as an output piece and welded with a backrest side plate and moves together with a backrest.

The non-continuous angle adjuster unlocked by the handle has the movable disc coaxial with the fixed disc and the movable disc doing circular motion. In the current continuous angle adjuster, the gear part is an N-type few-tooth differential gear structure without an output mechanism, the middle eccentric shaft is an input part, the fixed disc is a fixed gear ring, and the movable disc is a planet wheel. During adjustment, the driving shaft drives the eccentric shaft to rotate, the eccentric shaft drives the movable disc (planet wheel) to move, and the movable disc (planet wheel) does eccentric swing with both revolution and rotation under the limitation of the fixed disc (gear ring). Because an output mechanism for converting eccentric motion into circular motion is not provided, but a movable disc (planet wheel) is directly used as an output member, the angle adjuster of the type outputs circular motion coaxial with the fixed disc but eccentrically swings when in operation, and the whole seat backrest also eccentrically swings under the drive of the movable disc.

The non-coaxial output continuous angle adjuster has the advantages that the movable disc and the fixed disc are eccentric, so that a backrest side plate welded with the movable disc cannot be universal for a non-continuous adjustment type, and angle adjusters on two sides of a seat are symmetrical and are not universal left and right, so that the types of seat parts are increased, inconvenience is brought to production management, and the cost of the seat is increased.

Due to the eccentric swing of the backrest, the gap between the limiting plate for limiting the adjusting angle and the seat connecting plate is not fixed in the moving process, so that the limiting plate can be scratched to the seat connecting plate, the operation of the angle adjuster is influenced, and abnormal sound is generated. In view of the fact that the eccentric swing of the backrest may cause the position where the limiting plate is in contact with the limiting stop point of the seat connecting plate to be located at the outer edge part of the limiting stop point, so that the limiting is not firm and the limiting is invalid, a continuous automobile seat recliner capable of achieving coaxial circular motion output is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can realize the continuous type angle modulation ware of car seat of coaxial circular motion output to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a continuous automobile seat angle adjuster capable of realizing coaxial circular motion output comprises an angle adjuster, a fixed disc, a wave spring, a planet carrier, a sun wheel, a planet wheel, a movable disc, a shell and a seat back, wherein the angle adjuster consists of the fixed disc, the wave spring, the planet carrier, the sun wheel, the planet wheel, the movable disc and the shell, the fixed disc comprises a fixed disc boss, a fixed disc central hole, a fixed disc outer ring inner wall, a fixed disc gear ring, a gasket groove, a fixed disc outer ring top surface, a fixed disc outer ring groove surface and a fixed disc gear ring bottom surface, the wave spring is arranged in the gasket groove of the fixed disc, the planet carrier is arranged on the fixed disc gear ring bottom surface of the fixed disc, the planet carrier comprises a shaped planet carrier central hole and an edge hole, the planet carrier can rotate around the axis of the fixed disc, the sun wheel is arranged on the right side, the left end cylinder of the sun wheel is inserted into a fixed disc central hole of the fixed disc, the sun wheel can rotate around the axis of the fixed disc, the planet wheels are arranged on the planet carrier, the number of the planet wheels is three, the three planet wheels are uniformly distributed between the sun wheel and a fixed disc gear ring, the three planet wheels are meshed with the sun wheel and the fixed disc gear ring, the movable disc is arranged on the right side of the planet wheels, the movable disc comprises a movable disc gear ring, a movable disc gear ring bottom plane, a movable disc gear ring outer ring surface, a movable disc central hole, a movable disc boss and a movable disc outer ring surface, the movable disc gear ring is coated in the fixed disc outer ring inner wall of the fixed disc, the right end cylinder of the sun wheel is inserted into a movable disc central hole of the movable disc, the movable disc can rotate around the axis of the sun wheel, and the three planet, the seat back includes right back curb plate, angle modulation ware, sits connecting plate, drive shaft, limiting plate and left back curb plate, sit the connecting plate and include spacing fender point and sit the connecting plate top edge, and sit the fixed disk boss on connecting plate and the fixed disk and weld mutually, left side back curb plate and right back curb plate all weld with the activity dish boss on the activity dish mutually, establish the splined hole in the middle of the sun gear, and the drive shaft is installed in the splined hole, the limiting plate includes limiting plate bottom surface and limiting plate lateral wall.

Preferably, the radial gap between the central hole of the planet carrier and the outer ring groove surface of the fixed disk is small.

Preferably, the last equipartition of planet carrier has three limit hole, and is three all be equipped with the planet wheel boss on the planet wheel, and three planet wheel boss installs respectively in three limit downthehole, and is three radially be the setting of booth clearance between planet wheel and the activity dish ring gear baseplane.

Preferably, the number of the sun gear teeth is 14, the number of the fixed disk gear rings is 34, and the number of the movable disk gear rings is 31.

Preferably, the shell is welded with the fixed disk, the fixed disk is radially wrapped by the shell, and the shell is tightly attached to the top surface of the outer ring of the fixed disk in the axial direction.

Preferably, the outer ring surface of the movable disk gear ring of the movable disk and the shell are radially arranged in a small gap mode, and the outer ring surface of the movable disk and the shell are radially arranged in a large gap mode.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a car seat continuous type angle modulation ware has abandoned traditional poor differential gear structure of few tooth, adopts special form's NGWN type planetary gear structure, and the activity dish is coaxial with fixed disk, drive shaft three, and what the activity dish was done is coaxial circular motion. Because the coaxial output is realized, the backrest side plate welded with the movable disc of the continuous angle adjuster can be universal for non-continuous adjustment types, the continuous angle adjuster is not divided into a left part and a right part, and the identical angle adjusters are used on two sides of the seat, so that the types of seat parts are reduced, convenience is brought to production management, and the seat cost is reduced.

The seat backrest driven by the continuous angle adjuster performs coaxial circular motion, the gap between the limiting plate and the sitting connecting plate is fixed in the motion process, and the problems that the limiting plate is scratched to the sitting connecting plate, the operation of the angle adjuster is influenced, and abnormal sound is generated due to the fact that the limiting plate is possibly caused by eccentric swing are solved. The coaxial circular motion of the backrest also avoids the problems of reduced limiting strength and even limiting failure caused by the fact that the limiting plate is possibly positioned at the outer edge part of the limiting stop point at the position where the limiting plate is contacted with the limiting stop point of the seat connecting plate.

Drawings

FIG. 1 is an exploded view of the apparatus of the present invention;

fig. 2 is a front view of the device of the present invention;

fig. 3 is a right side view of the inventive apparatus;

FIG. 4 is a sectional view of FIG. 2 taken along line A-A;

figure 5 is an isometric view of the device mounting plate of the present invention;

FIG. 6 is an isometric view of the removable disk of the device of the present invention;

fig. 7 is a sectional structure view at B-B in fig. 2, i.e., a sectional structure view of the sun gear, the planet gear and the fixed disk portion of the device of the present invention;

fig. 8 is a sectional structure view at C-C in fig. 2, i.e., a sectional structure view of the sun gear, the planet gear and the movable plate of the device of the present invention;

FIG. 9 is an isometric view of a seat back;

fig. 10 is a schematic diagram of a conventional NGWN-type planetary gear.

In the figure: 1 fixed disk, 11 fixed disk bosses, 12 fixed disk central holes, 13 fixed disk outer ring inner walls, 14 fixed disk gear rings, 15 gasket grooves, 16 fixed disk outer ring top surfaces, 17 fixed disk outer ring groove surfaces, 18 fixed disk gear ring bottom surfaces, 2 wave springs, 3 planetary carriers, 31-shaped planetary carrier central holes, 32 side holes, 4 sun gears, 41 spline holes, 42 left end cylinders, 43 right end cylinders, 5 planetary gears and 51 planetary gear bosses, 6 movable disc, 61 movable disc gear ring, 62 movable disc gear ring bottom plane, 63 movable disc gear ring outer ring surface, 64 movable disc center hole, 65 movable disc boss, 66 movable disc outer ring surface, 7 shell, 8 seat back, 81 right back side plate, 82 angle adjuster, 83 sitting connecting plate, 831 limit stop point, 832 sitting connecting plate upper edge, 84 driving shaft, 85 limit plate, 851 limit plate bottom surface, 852 limit plate side wall and 86 left back side plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-10, a continuous angle adjuster for automobile seats capable of realizing coaxial circular motion output, comprising an angle adjuster 82, a fixed disc 1, a wave spring 2, a planet carrier 3, a sun gear 4, a planet gear 5, a movable disc 6, a housing 7 and a seat back 8, wherein the angle adjuster 82 comprises a fixed disc 1, a wave spring 2, a planet carrier 3, a sun gear 4, a planet gear 5, a movable disc 6 and a housing 7, the fixed disc 1 comprises a fixed disc boss 11, a fixed disc central hole 12, a fixed disc outer ring inner wall 13, a fixed disc gear ring 14, a gasket groove 15, a fixed disc outer ring top surface 16, a fixed disc outer ring groove surface 17 and a fixed disc gear ring bottom surface 18, the wave spring 2 is arranged in the gasket groove 15 of the fixed disc 1, the planet carrier 3 is arranged on the fixed disc gear ring bottom surface 18 of the fixed disc 1, a small radial gap is arranged between the central hole 31 of, the planet carrier 3 comprises a central hole 31 and side holes 32 of the planet carrier, the planet carrier 3 can rotate around the axis of the fixed disc 1, the sun wheel 4 is arranged at the right side of the wave spring 2, the sun wheel 4 comprises a spline hole 41, a left end cylinder 42 and a right end cylinder 43, the left end cylinder 42 of the sun wheel 4 is inserted into the central hole 12 of the fixed disc 1, the sun wheel 4 can rotate around the axis of the fixed disc 1, the planet wheels 5 are arranged on the planet carrier 3, the number of the planet wheels 5 is three, the planet carrier 3 is uniformly provided with three side holes 32, the three planet wheels 5 are respectively provided with a planet wheel boss 51, the three planet wheel bosses 51 are respectively arranged in the three side holes 32, the three planet wheels 5 and the bottom plane 62 of the movable disc gear ring are radially arranged with small clearance, the three planet wheels 5 are uniformly distributed between the sun wheel 4 and the fixed disc gear ring 14, and the three planet wheels, the movable disc 6 is arranged at the right side of the planet wheel 5, the movable disc 6 comprises a movable disc gear ring 61, a bottom plane 62 of the movable disc gear ring, an outer ring surface 63 of the movable disc gear ring, a central hole 64 of the movable disc, a boss 65 of the movable disc and an outer ring surface 66 of the movable disc, the movable disc gear ring 61 is covered in the inner wall 13 of the outer ring of the fixed disc 1, the cylinder 43 at the right end of the sun wheel 4 is inserted into the central hole 64 of the movable disc 6, the movable disc 6 can rotate around the axis of the sun gear 4, the three planet gears 5 are meshed with the sun gear 4 and the movable disc gear ring 61, the number of teeth of the sun gear 4 is 14, and the number of teeth of fixed disk ring gear 14 is 34, the number of teeth of movable disk ring gear 61 is 31, the number of teeth of sun gear 4 and planet gear 5 are prime numbers each other, the number of teeth of planet gear 5 and fixed disk ring gear 14 are prime numbers each other, the number of teeth of planet gear 5 and movable disk ring gear 61 are prime numbers each other, and the problem of uneven wear of each gear tooth caused by the fact that the number of teeth are not prime each other is avoided.

In traditional NGWN type planetary gear schematic diagram, one-level ring gear b is fixed, one-level planet wheel c establishes ties fixedly with second grade planet wheel d and constitutes the duplicate gear together, one-level planet wheel c is different with second grade planet wheel d number of teeth, sun gear an drives the duplicate gear c + d rotation as the input member, second grade planet wheel d drives second grade ring gear e rotatory, second grade ring gear e is the output member, this kind of traditional duplicate gear structure, part quantity is many, the technology is complicated, and the utility model discloses the gear structure of device is special form's NGWN type planetary gear, integrate into a set of planet wheel with two sets of planet wheels of duplicate structure, shift through the gear, realized that the ring gear of two different numbers of teeth can mesh with a set of planet wheel simultaneously, reduced part quantity from this by a wide margin, simplified structure, technology, the cost is reduced by a wide margin.

Conventional NGWN-type star gear transmission ratio i^b _ae＝(1+(Z_b/Z_a))/[1-Z_b*Z_d/(Z_c*Z_e)]In the case of the present invention, i¹ ₄₆＝(1+(34/14))/[1-34*9/(9*31)]The transmission ratio of the special NGWN-shaped planetary gear structure is very close to that of a traditional few-tooth difference type angle adjuster, the sun gear 4 serves as an input piece to drive the whole gear train to rotate, torque is applied to the movable disc 6, and the movable disc 6 cannot reversely drive the whole gear train to move, so that reverse self-locking is achieved.

The seat back 8 comprises a right back side plate 81, an angle adjuster 82, a seat connecting plate 83, a driving shaft 84, a limiting plate 85 and a left back side plate 86, the seat connecting plate 83 comprises a limiting stop point 831 and an upper edge 832 of the seat connecting plate, the seat connecting plate 83 is welded with a fixed disc boss 11 on a fixed disc 1, the left back side plate 86 and the right back side plate 81 are welded with a movable disc boss 65 on a movable disc 6, a spline hole 41 is arranged in the middle of a sun wheel 4, the driving shaft 84 is installed in the spline hole 41, the sun wheel 4 is driven by the driving shaft 84 to rotate, the sun wheel 4 drives a planet wheel 5 to rotate, the planet wheel 5 drives a movable disc gear ring 61 to rotate, the planet wheel 5 transmits the torque of the sun wheel 4 to the movable disc gear ring 61 under the limitation of the fixed disc gear ring 14, the movable disc 6 performs circular motion coaxial with the fixed disc 1, and the movable disc 6 serves as, the eccentric motion that does not have traditional continuous type angle modulation ware of activity dish 6, left back curb plate 86 and right back curb plate 81 that weld together with activity dish 6 can be general with the non-continuous regulation type, the utility model discloses the device is continuous type angle modulation ware does not have the branch about, and identical angle modulation ware 82 is used to the seat both sides, has reduced seat part kind from this, has brought the facility for production management, has effectively reduced the seat cost.

The limiting plate 85 comprises a limiting plate bottom surface 851 and a limiting plate side wall 852, the limiting plate bottom surface 851 is fixed with a gap between the upper edges 832 of the seat connecting plates in the moving process, the problems that the limiting plate 85 is scratched to the seat connecting plates 83 due to eccentric swing, the operation of the angle adjuster 82 is influenced, abnormal sound is generated are avoided, the coaxial circular motion of the backrest is avoided, and the problems that the limiting strength is reduced and even the limiting failure is caused because the limiting plate side wall 852 and the limiting stop point 831 of the seat connecting plates 83 are possibly located at the outer edge part of the limiting stop point 831 in the contact position are also avoided.

Shell 7 welds mutually with fixed disk 1, fixed disk 1 is lived in the radial parcel of shell 7, and shell 7 hugs closely fixed disk outer loop top surface 16 of fixed disk 1 in the axial, radially be the setting of small clearance between activity dish ring gear outer loop 63 of activity dish 6 and the shell 7, and radially be the setting of big clearance between activity dish outer loop 66 of activity dish 6 and the shell 7, set up the whole device of cladding that shell 7 plays, the effect of restriction part axial and radial displacement, under wave spring 2's extrusion, sun gear 4 will hug closely movable dish ring gear bottom surface 62 of activity dish 6, shell 7 will be hugged closely in the axial to activity dish 6, wave spring 2 plays the effect of eliminating whole device axial clearance.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a can realize car seat continuous type angle modulation ware of coaxial circular motion output, includes angle modulation ware (82), fixed disk (1), wave spring (2), planet carrier (3), sun gear (4), planet wheel (5), activity dish (6), shell (7) and seat back (8), its characterized in that: the angle adjuster (82) is composed of a fixed disc (1), a wave spring (2), a planet carrier (3), a sun wheel (4), a planet wheel (5), a movable disc (6) and a shell (7), wherein the fixed disc (1) comprises a fixed disc boss (11), a fixed disc central hole (12), a fixed disc outer ring inner wall (13), a fixed disc gear ring (14), a gasket groove (15), a fixed disc outer ring top surface (16), a fixed disc outer ring groove surface (17) and a fixed disc gear ring bottom surface (18), the wave spring (2) is arranged in the gasket groove (15) of the fixed disc (1), the planet carrier (3) is arranged on the fixed disc gear ring bottom surface (18) of the fixed disc (1), the planet carrier (3) comprises a wave planet carrier central hole (31) and a side hole (32), the planet carrier (3) can rotate around the axis of the fixed disc (1), the sun wheel (4) is arranged on the right side of the, and sun gear (4) including splined hole (41), left end cylinder (42) and right-hand member cylinder (43), left end cylinder (42) of sun gear (4) insert in fixed disk centre bore (12) of fixed disk (1), and sun gear (4) can be rotatory around fixed disk (1) axle center, planet wheel (5) are installed on planet carrier (3), and planet wheel (5) set up quantity be three, three planet wheel (5) equipartition is between sun gear (4) and fixed disk ring gear (14), and three planet wheel (5) and sun gear (4) and fixed disk ring gear (14) homogeneous phase meshing, activity dish (6) are installed in planet wheel (5) right side, and activity dish (6) are including activity dish ring gear (61), activity dish bottom surface (62), activity dish ring gear external ring face (63), activity dish centre bore (64), The movable disc comprises a movable disc boss (65) and a movable disc outer annular surface (66), a movable disc gear ring (61) is wrapped in a fixed disc outer annular inner wall (13) of a fixed disc (1), a right end cylinder (43) of a sun wheel (4) is inserted into a movable disc center hole (64) of a movable disc (6), the movable disc (6) can rotate around the axis of the sun wheel (4), three planet wheels (5) are meshed with the sun wheel (4) and the movable disc gear ring (61), the seat backrest (8) comprises a right backrest side plate (81), an angle adjuster (82), a seat connecting plate (83), a driving shaft (84), a limiting plate (85) and a left backrest side plate (86), the seat connecting plate (83) comprises a limiting stop point (831) and a seat connecting plate upper edge (832), and the seat connecting plate (83) is welded with the fixed disc boss (11) on the fixed disc (1), left side back curb plate (86) and right back curb plate (81) all weld with activity dish boss (65) on activity dish (6) mutually, establish splined hole (41) in the middle of sun gear (4), and install in splined hole (41) drive shaft (84), limiting plate (85) include limiting plate bottom surface (851) and limiting plate lateral wall (852).

2. The continuous recliner for automotive seats capable of outputting coaxial circular motion as claimed in claim 1, wherein: the radial small gap is arranged between the central hole (31) of the planet carrier (3) and the outer ring groove surface (17) of the fixed disc (1).

3. The continuous recliner for automotive seats capable of outputting coaxial circular motion as claimed in claim 1, wherein: the equipartition has three limit hole (32) on planet carrier (3), and is three all be equipped with planet wheel boss (51) on planet wheel (5), and three planet wheel boss (51) are installed respectively in three limit hole (32), and are three radially be the setting of booth clearance between planet wheel (5) and the activity dish ring gear baseplane (62).

4. The continuous recliner for automotive seats capable of outputting coaxial circular motion as claimed in claim 1, wherein: the number of teeth of sun gear (4) is 14, and fixed disk ring gear (14) the number of teeth is 34, movable disk ring gear (61) the number of teeth is 31.

5. The continuous recliner for automotive seats capable of outputting coaxial circular motion as claimed in claim 1, wherein: shell (7) and fixed disk (1) weld mutually, radially parcel of shell (7) lives fixed disk (1), and shell (7) hug closely fixed disk outer ring top surface (16) of fixed disk (1) in the axial.

6. The continuous recliner for automotive seats capable of outputting coaxial circular motion as claimed in claim 1, wherein: the radial gap between the outer ring surface (63) of the movable disk gear ring of the movable disk (6) and the shell (7) is small, and the radial gap between the outer ring surface (66) of the movable disk (6) and the shell (7) is large.