CN105691250A - Angle adjuster for automobile seat - Google Patents

Abstract

The invention discloses an angle adjuster for an automobile seat and belongs to accessories for automobile seats. A first shaft hole is formed in the middle part of a fluted disc seat; positioning bosses are formed on one side of the fluted disc seat; a sliding groove is formed between two adjacent positioning bosses; first limiting edges are arranged on the two edges of each positioning boss; a second shaft hole is formed in the middle part of a fluted disc; a geared ring is arranged on the inner wall of one side of the fluted disc; an accommodating cavity is formed in the middle part of the side of the fluted disc; a limiting sheet accommodating cavity is formed in the bottom of the accommodating cavity; the amount of small tooth plates is four; gear teeth are formed on the outer side of each small tooth plate; first and second bottom edges are arranged on the inner side of each small tooth plate; a second limiting edge is arranged on the side edge of each small tooth plate; a drive mechanism is composed of a camshaft; a shaft hole is formed in the middle part of the camshaft; a spring groove is formed in the outer wall of the camshaft; a camshaft seat is arranged at one end of the camshaft; a cam block is arranged on the camshaft seat; first and second retaining salients are formed on the cam block; a camshaft seat avoiding cavity is formed in the middle part of a limiting sheet; a limiting groove is formed in the wall of the avoiding cavity; a closed ring encapsulates the fluted disc seat and the fluted disc; a spring is arranged on the camshaft outside the fluted disc seat; a shaft sleeve is provided with a column body; a shaft sleeve hole is formed in the middle part of the column body; and a shaft sleeve cover is arranged at one end of the column body. The angle adjuster for the automobile seat is high in strength, small in interval and size, convenient in unlocking and assembling and low in processing accuracy requirement and cost.

Description

Angle regulating device for seat of vehicle

Technical field

The invention belongs to automobile seat accessories technical field, be specifically related to a kind of for being arranged between the chair back of seat and seat support, can suitably adjusting back relative to the angle regulating device for seat of vehicle of angle between seat support。

Background technology

The function of angle regulating device for seat of vehicle, as it has been described above, take on the function changing chair back swing angle, must be joined on automotive seat as this device。For the self structure of recliner, it is necessary to have a pair tooth plate, i.e. one group of little tooth plate and a fluted disc, by applying power on drive disk assembly such as axle, thus acting on lobe plate, and then being acted on a pair tooth plate by lobe plate, making little tooth plate and fluted disc disengaging realize the adjustment of Chair back；Otherwise, cancelling the power that drive disk assembly is applied, being made by the resilience force of spring little tooth plate engage with fluted disc, thus realizing the latch functions of recliner。This can be applied for by the applicant by Chinese invention patent Authorization Notice No. CN101875321B() name be called in one " structure improve automotive seat actuator " and obtain detailed understanding。The achievement part of this art solutions is in that: simple in construction, easy to assembly, has two forced contact faces to act on, reliable lock, gap is little, convenient for unlocking, intensity high, dexterity of action is good, dependable performance during locking simultaneously, and applied widely。But, along with the demand in main engine plants and market constantly promotes, it can expose following deficiency in actual use: first, and the spring of this recliner adopts built-in, and the overall dimensions making recliner body is relatively bigger than normal, it is impossible to save manufacturing cost again；Secondly as the overall dimensions of recliner body is big so that the distance slided in little tooth plate sliding tray on fluted disc seat is relatively long, thus the requirement on machining accuracy of the sliding tray of fluted disc seat is higher；3rd, two application points of a, b act on simultaneously, thus the requirement on machining accuracy of little tooth plate and lobe plate is equally also high especially, make the gap of recliner be difficult to control；4th, recliner does not have spacing, is suitable for 360 ° of lockings, needs additionally to arrange stopping means more on the seat to the range of accommodation of recliner angle of lock degree, not only increases the quantity of parts, it has not been convenient to management, and increase the difficulty that recliner is installed。

Summary of the invention

The task of the present invention is to provide for a kind of angle regulating device for seat of vehicle, not only volume is little, lightweight for it, simple in construction, easy to assembly, cost is low, and convenient for unlocking, gap are little, the reliable intensity of locking is high, dexterity of action is good, applied widely, it may be achieved and the connection between any seat。

The task of the present invention is performed by, a kind of angle regulating device for seat of vehicle, it is characterized in: include fluted disc seat, fluted disc, little tooth plate, driving mechanism, banking stop, Guan Bi ring, spring and axle sleeve, described fluted disc seat is disc, axially middle at fluted disc seat offers one first axis hole, the side, side of fluted disc seat is convexly equipped with positioning boss, the quantity of described positioning boss has four, it is distributed in the surrounding of the first described axis hole, it is formed with sliding tray between two adjacent positioning boss, described sliding tray is stairstepping, on the positioning boss on each sliding tray both sides, symmetrical composition has one first position-limited edge, the opposite side side of fluted disc seat is convexly equipped with pin, the quantity of pin has one, it is disposed therein the back side of any one sliding tray；Described fluted disc is disc, axially middle at fluted disc offers the second axis hole, at fluted disc towards constituting gear ring on the excircle inwall of fluted disc seat side, centre is containing cavity, it is formed with the banking stop cavity volume for holding banking stop in the bottom of containing cavity, the fluted disc side away from fluted disc seat side is convexly equipped with one group of fixing lug boss for being connected with chair back side plate；Described little tooth plate has four pieces, it is respectively placed in four sliding trays of fluted disc seat, each little tooth plate outside longitudinally is formed respectively with for nibbling the teeth joined mutually with gear ring, inner side longitudinally is respectively formed with the first base and the second base, each little tooth plate is formed with the side being parallel to each other in the both sides of width, being respectively formed with the second position-limited edge matched with the first described position-limited edge on each side, its medium and small tooth plate is additionally provided with boss on the side towards fluted disc side；Described driving mechanism includes a camshaft, described camshaft is special-shaped axis, the axially middle of this camshaft offers axis hole, outer wall has spring groove, end, one end is constituted camshaft holder, described camshaft holder has a cam bit in composition on the side, side of fluted disc seat, first gear is convex and second gear is convex to be provided with four pairs between on the outer ring of described cam bit, four pairs of first gear are convex convex with second gear corresponding with the first base on four pieces of little tooth plates and the second base respectively, the camshaft holder of camshaft one end is placed in the containing cavity in the middle of fluted disc, the other end leans out outside fluted disc seat after the first axis hole in the middle of fluted disc seat；Described banking stop is placed in described banking stop cavity volume, offers camshaft holder in the centre of banking stop and steps down chamber, and the step down cavity wall in chamber of described camshaft holder is concavely provided with the stopper slot matched with the boss on little tooth plate；Described Guan Bi ring is encapsulated in the outer perimeter of fluted disc seat and fluted disc；The centre of described spring has spring eye, spring is set on the camshaft of driving mechanism by spring eye and is positioned at the outside of fluted disc seat, and this spring is provided with the first spring for matching with spring groove in spring eye, outer ring has the second spring for matching with the pin of fluted disc seat；Described axle sleeve is cylindrical, has a cylinder matched with the axis hole of camshaft, and the axially centre of this cylinder offers axle sleeve hole, is provided with axle sleeve lid in the one end away from fluted disc seat。

In a specific embodiment of the present invention, four pieces of described little tooth plates composition that faces each other is two right, and is only provided with boss on the little tooth plate of the one pair of which of two pairs of little tooth plates；Described stopper slot has a pair, be located between a pair stopper slot the camshaft holder of described banking stop step down chamber cavity wall on, and equally each other in arranging face-to-face。

In another specific embodiment of the present invention, the axis hole in the middle of described camshaft is a scallop, and described axle sleeve is a nonmetal parts, and axle sleeve engages each other fastening by cylinder hub setting in described axis hole and with the tooth of axis hole wall。

One in another specific embodiment of the present invention, during being shaped as of described axle sleeve hole is square, circular or quincunx。

In another specific embodiment of the present invention, being preferably shaped to of described axle sleeve hole is square。

After due to the fact that employing said structure, one of have the advantage that, be provided with positioning boss and opposite side side is not provided with fixing lug boss due to the side, side of fluted disc seat, therefore the intensity of fluted disc seat is good, little tooth plate is provided with four pieces again, the area that teeth thereon are meshed with the gear ring of fluted disc is bigger, this improves the intensity of recliner；Advantage two, match owing to the first base of four pieces of little tooth plates, the second base are convex with the first gear of driving mechanism, second gear is convex, therefore, when power acts on driving mechanism, the rotation of driving mechanism drive four pieces of little tooth plates to slide, it is thus possible to ensure the concordance of all little tooth plate actions simultaneously；The three of advantage, owing to spring acts on driving mechanism, and then driven all little tooth plates to reset by the rotation of driving mechanism, the teeth of four pieces of little tooth plates realize well nibbling joining with the gear ring of fluted disc respectively, and the four of driving mechanism pairs first gear is convex and second gear is convex conflicts respectively on first base and the second base of four pieces of little tooth plates, and form the first forced contact face a and the second forced contact face b, again because the first forced contact face a relatively the second forced contact face b first contacts, therefore compared with the stress simultaneously of two forced contact faces in prior art, the technical program be more beneficial for when locking ensureing between teeth and the gear ring of fluted disc of little tooth plate engage reliable, gap is little, simultaneously, there are four groups of forced contact faces, locking intensity is higher；The four of advantage, described driving mechanism adopts integral structure, and more existing recliner structure is more simple, and installs very convenient；The five of advantage, spring adopts external to install, and facilitates the adjustment of releasing force；The six of advantage, the banking stop by setting up in fluted disc, it is possible to angular adjustment is arranged within the specific limits, therefore the outside stopping means separately set can be saved when mounted；The seven of advantage, simple in construction, volume be little, lightweight, convenient for unlocking, easy to assembly, dexterity of action good, dependable performance；Advantage eight, the requirement on machining accuracy of parts is low, it is simple to processing and fabricating, production cost is low；Advantage nine, applied widely, it may be achieved and the connection between any seat。

Accompanying drawing explanation

Fig. 1 is the shaft side figure of one embodiment of the invention。

Fig. 2 is the shaft side figure on Fig. 1 embodiment other direction。

Fig. 3 is the present invention plane structure chart at lockup state。

Fig. 4 is the present invention plane structure chart in open mode。

In figure: 1. fluted disc seat, 11. first axis holes, 12. positioning boss, 121. sliding trays, 1211. first position-limited edges, 13. pins；2. fluted disc, 21. second axis holes, 22. containing cavities, 221. banking stop cavity volumes, 23. gear rings, 24. fixing lug boss；3. little tooth plate, 31. teeth, 32. sides, 321. second position-limited edges, 33. first bases, 34. second bases, 35. boss；4. driving mechanism, 41. camshafts, 411. axis holes, 412. spring grooves, 413. camshaft holders, 42. cam bits, 421. first gear are convex, 422. second gear are convex；5. banking stop, 51. camshaft holders are stepped down chamber, 511. stopper slots；6. Guan Bi ring；7. spring, 71. spring eyes, 711. first springs, 72. second springs；8. axle sleeve, 81. cylinders, 82. axle sleeve holes, 83. axle sleeve lids；A. the first forced contact face；B. the second forced contact face。

Detailed description of the invention

In order to enable the public to be more clearly understood from technical spirit and the beneficial effect of the present invention, applicant will elaborate in conjunction with accompanying drawing below by way of example, but the description to embodiment is not all the restriction to the present invention program, any foundation pro forma but not substantial equivalent transformation that is only done by present inventive concept is regarded as technical scheme category。

Refer to Fig. 1 and Fig. 2, fluted disc seat 1 of the present invention is disc, axially middle at fluted disc seat 1 offers one first axis hole 11, the side, side of fluted disc seat 1 is convexly equipped with positioning boss 12, the quantity of described positioning boss 12 has four, it is distributed in the surrounding of the first described axis hole 11, it is formed with sliding tray 121 between two adjacent positioning boss 12, described sliding tray 121 is stairstepping, on the positioning boss 12 on each sliding tray 121 both sides, symmetrical composition has one first position-limited edge 1211, the opposite side side of fluted disc seat 1 is convexly equipped with pin 13, the quantity of pin 13 has one, it is disposed therein the back side of any one sliding tray 121。Described fluted disc 2 is disc, axially middle at fluted disc 2 offers the second axis hole 21, at fluted disc 2 towards constituting gear ring 23 on the excircle inwall of fluted disc seat 1 side, centre is containing cavity 22, the banking stop cavity volume 221 for holding banking stop 5 it is formed with in the bottom of containing cavity 22, the fluted disc 2 side away from fluted disc seat side is convexly equipped with one group of fixing lug boss 24 for being connected with chair back side plate, the quantity of the one group of fixing lug boss 24 provided in figure is six, but quantity is not exposed to concrete restriction。Described little tooth plate 3 has four pieces, it is respectively placed in four sliding trays 121 of fluted disc seat 1, each little tooth plate 3 outside longitudinally is formed respectively with for nibbling the teeth 31 joined with gear ring 23 phase, inner side longitudinally is respectively formed with the first base 33 and the second base 34, each little tooth plate 3 is formed with the side 32 being parallel to each other in the both sides of width, being respectively formed with the second position-limited edge 321 matched with the first described position-limited edge 1211 on each side 32, its medium and small tooth plate 3 is additionally provided with boss 35 on the side towards fluted disc 2 side。In the present embodiment, four pieces little described tooth plates 3 composition that faces each other is two right, and is only provided with boss 35 on the little tooth plate of one pair of which of two pairs of little tooth plates 3。Described driving mechanism 4 is integral type structure, it includes a camshaft 41, described camshaft 41 is special-shaped axis, the axially middle of this camshaft 41 offers axis hole 411, outer wall has spring groove 412, end, one end is constituted camshaft holder 413, described camshaft holder 413 has a cam bit 42 in composition on the side, side of fluted disc seat 1, four pairs of first gear convex 421 and second gear convex 422 it is provided with between on the outer ring of described cam bit 42, four pairs of first gear convex 421 and second gear convex 422 are corresponding with the first base 33 on four pieces little tooth plates 3 and the second base 34 respectively, the camshaft holder 413 of camshaft 41 one end is placed in the containing cavity 22 in the middle of fluted disc 2, the other end leans out outside fluted disc seat 1 after the first axis hole 11 in the middle of fluted disc seat 1。Described banking stop 5 is placed in described banking stop cavity volume 221, offer camshaft holder to step down chamber 51 in the centre of banking stop 5, the step down cavity wall in chamber 51 of described camshaft holder is concavely provided with the stopper slot 511 matched with the boss 35 on little tooth plate 3, described stopper slot 511 has a pair, be located between a pair stopper slot 511 camshaft holder of described banking stop 5 step down chamber 51 cavity wall on, and equally each other in arranging face-to-face, each of which stopper slot 51 arc length along the circumferential direction can regulate according to actual needs and arbitrarily。The centre of described spring 7 has spring eye 71, spring 7 is set on the camshaft 41 of driving mechanism 4 by spring eye 71 and is positioned at the outside of fluted disc seat 1, and this spring 7 is provided with the first spring 711 for matching with spring groove 421 in spring eye 71, outer ring has the second spring 72 for matching with the pin 13 of fluted disc seat 1。Described axle sleeve 8 is cylindrical, there is a cylinder 81 matched with the axis hole 411 of camshaft 41, the axially centre of this cylinder 81 offers axle sleeve hole 82, is provided with axle sleeve lid 83 in the one end away from fluted disc seat 1, the shape of axle sleeve hole 82 is unrestricted, can be square, circular or quincunx etc., preferably square in the present embodiment。Axis hole 411 in the middle of described camshaft 41 is a scallop, and described axle sleeve 8 is a nonmetal parts, and axle sleeve 8 engages each other fastening by cylinder 81 hub setting in described axis hole 411 and with the tooth of axis hole wall。

Refer to Fig. 1, Fig. 2 in conjunction with Fig. 3, Fig. 4 sketches the operation principle of the present invention: assume the fixing lug boss 24 of the Guan Bi cylindrical of ring 6 and fluted disc 2 respectively with the seat support seat basin side plate of automotive seat, the connection of chair back side plate is complete, so, under normal circumstances, 1) when the angle making the chair back is suitable when change, then axle sleeve 8 applies active force, because axle sleeve 8 and driving mechanism 4 are fastenedly connected mutually, therefore the rotation of axle sleeve 8 drives driving mechanism 4 to rotate to an angle, along with driving mechanism 4 rotates under the active force overcoming spring 7, and then the first base 33 rotating through little tooth plate 3 and the second base 34 by the first gear on cam bit 42 convex 421 and second gear convex 422 drives the displacement of little tooth plate 3, four pieces little tooth plates 3 are made jointly to return cunning towards the center position of the first axis hole 11 with acting in agreement, becoming the teeth 31 of previous little tooth plate 3 with the engagement of the gear ring 23 of fluted disc 2 is released state (as shown in Figure 4), now the angle of the chair back can be adjusted。2) once the angular adjustment of the chair back is complete, when unclamping the active force being applied on axle sleeve 8, then owing to namely the previous stored energy of spring 7 was discharged by wink, driving mechanism 4 is driven to circle round towards with previous direction of rotation opposite direction, because the first spring 711 of spring 7 is to hook to fit on the spring groove 412 of driving mechanism 4, therefore when driving mechanism 4 rotates under the effect of spring 7, drive again four pieces little tooth plates 3 to slide towards gear ring 23 direction with acting in agreement, until the teeth 31 on little tooth plate 3 are meshed with gear ring 23 respectively and lock (as shown in Figure 3) simultaneously。Under this lockup state, first gear convex 421 and second gear convex 422 on the cam bit 42 of described driving mechanism 4 are taken up in order of priority conflict to form the first forced contact face a and the second forced contact face b on first base 33 and the second base 34 of four pieces little tooth plates 3, therefore can guarantee that realize between the teeth 31 of little tooth plate 3 and the gear ring 23 of fluted disc 2 at a fully engaged, it is ensured that the reliability of locking。

Claims (5)

1.A kind of angle regulating device for seat of vehicle, it is characterized in that: include fluted disc seat (1), fluted disc (2), little tooth plate (3), driving mechanism (4), banking stop (5), Guan Bi ring (6), spring (7) and axle sleeve (8), described fluted disc seat (1) is disc, axially middle at fluted disc seat (1) offers one first axis hole (11), the side, side of fluted disc seat (1) is convexly equipped with positioning boss (12), the quantity of described positioning boss (12) has four, it is distributed in the surrounding of described the first axis hole (11), it is formed with sliding tray (121) between two adjacent positioning boss (12), described sliding tray (121) is stairstepping, the upper symmetry of positioning boss (12) on each sliding tray (121) both sides is constituted one first position-limited edge (1211), the opposite side side of fluted disc seat (1) is convexly equipped with pin (13), the quantity of pin (13) has one, it is disposed therein the back side of any one sliding tray (121)；Described fluted disc (2) is disc, axially middle at fluted disc (2) offers the second axis hole (21), at fluted disc (2) towards constituting gear ring (23) on the excircle inwall of fluted disc seat (1) side, centre is containing cavity (22), it is formed with the banking stop cavity volume (221) for holding banking stop (5) in the bottom of containing cavity (22), the fluted disc (2) side away from fluted disc seat side is convexly equipped with one group of fixing lug boss (24) for being connected with chair back side plate；Described little tooth plate (3) has four pieces, it is respectively placed in four sliding trays (121) of fluted disc seat (1), each little tooth plate (3) outside longitudinally is formed respectively with for nibbling the teeth (31) joined mutually with gear ring (23), inner side longitudinally is respectively formed with the first base (33) and the second base (34), each little tooth plate (3) is formed with the side (32) being parallel to each other in the both sides of width, each side (32) is respectively formed with the second position-limited edge (321) matched with described the first position-limited edge (1211), its medium and small tooth plate (3) is additionally provided with boss (35) on the side towards fluted disc (2) side；Described driving mechanism (4) includes a camshaft (41), described camshaft (41) is special-shaped axis, the axially middle of this camshaft (41) offers axis hole (411), outer wall has spring groove (412), end, one end is constituted camshaft holder (413), described camshaft holder (413) is constituted on the side, side towards fluted disc seat (1) a cam bit (42), four pairs of first gear convex (421) and second gear convex (422) it is provided with between on the outer ring of described cam bit (42), four pairs of first gear convex (421) and second gear convex (422) are corresponding with the first base (33) on four pieces of little tooth plates (3) and the second base (34) respectively, the camshaft holder (413) of camshaft (41) one end is placed in the containing cavity (22) in the middle of fluted disc (2), the other end is leaning out fluted disc seat (1) outward after the first axis hole (11) in the middle of fluted disc seat (1)；Described banking stop (5) is placed in described banking stop cavity volume (221), offering camshaft holder to step down chamber (51) in the centre of banking stop (5), the step down cavity wall in chamber (51) of described camshaft holder is concavely provided with the stopper slot (511) matched with the boss (35) on little tooth plate (3)；Described Guan Bi ring (6) is encapsulated in fluted disc seat (1) and the outer perimeter of fluted disc (2)；The centre of described spring (7) has spring eye (71), spring (7) is set on the camshaft (41) of driving mechanism (4) by spring eye (71) and is positioned at the outside of fluted disc seat (1), and this spring (7) is provided with the first spring (711) for matching with spring groove (421) in spring eye (71), outer ring has the second spring (72) for matching with the pin of fluted disc seat (1) (13)；Described axle sleeve (8) is cylindrical, having a cylinder (81) matched with the axis hole (411) of camshaft (41), the axially centre of this cylinder (81) offers axle sleeve hole (82), is provided with axle sleeve lid (83) in the one end away from fluted disc seat (1)。

2.Angle regulating device for seat of vehicle according to claim 1, it is characterised in that four pieces of described little tooth plates (3) composition that faces each other is two right, and is only provided with boss (35) on the little tooth plate of one pair of which of two pairs of little tooth plates (3)；Described stopper slot (511) has a pair, be located between a pair stopper slot (511) camshaft holder of described banking stop (5) step down chamber (51) cavity wall on, and equally each other in arranging face-to-face。

3.Angle regulating device for seat of vehicle according to claim 1, it is characterized in that the axis hole (411) in the middle of described camshaft (41) is a scallop, described axle sleeve (8) is a nonmetal parts, and axle sleeve (8) engages each other fastening by cylinder (81) hub setting in described axis hole (411) and with the tooth of axis hole wall。

4.Angle regulating device for seat of vehicle according to claim 1, it is characterised in that described axle sleeve hole (82) be shaped as square, circular or quincunx in one。

5.Angle regulating device for seat of vehicle according to claim 4, it is characterised in that being preferably shaped to of described axle sleeve hole (82) is square。