A sliding rail assembly includes an upper sliding rail and a lower sliding rail extending along a back-and-forth direction as well as an upper ball and a lower ball disposed therebetween. The lower sliding rail includes a horizontal base plate, a first vertical side plate connected to the upper portion at the left edge of the horizontal base plate, and a first horizontal top plate connected to the right side at the upper edge of the first vertical side plate; the upper sliding rail comprises a first inclined plate and a second inclined plate; the extension line of the first inclined plate with the first vertical side plate and the extension line of the first horizontal top plate to form an upper triangular region; the extension line of the second inclined plate intersects the horizontal base plate and the first vertical side plate to form a lower triangular region.
A vehicle seat and an angle adjustment device are provided. The angle adjustment device includes an unlock cam, a ratchet wheel provided with internal teeth, and a plurality of slide blocks disposed circumferentially and provided with external teeth. The angle adjustment device further includes a plurality of extension and retraction blocks corresponding to the slide blocks, wherein the extension and retraction block is capable of driving the slide block to move outwards in a radial direction so as to engage the internal teeth with the external teeth. A second elastic member is provided between two adjacent extension and retraction blocks, and two ends of the second elastic member in a deformation direction are respectively connected to the unlock cam and the extension and retraction block.
B60N 2/235 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
B60N 2/22 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
An electric seat and an angle adjustment device thereof are provided. The angle adjustment device includes an inner toothed plate and an outer toothed plate engaging with each other, and an eccentric cavity formed therebetween. An eccentric ring completely occupying a positive eccentric region of the eccentric cavity is provided in the eccentric cavity. The eccentric ring has a first accommodating region and a second accommodating region along a circumferential direction. The angle adjustment device further comprises a driving component for driving rotation of the eccentric ring. A damping component is provided in the first accommodating region and/or the second accommodating region, and the damping component is in a compressed state during operation of the driving component. The damping component eliminates a useless stroke in the above operation, thereby eliminating an adjustment lag experienced by a passenger during reverse adjustment of a seat and backrest.
B60N 2/22 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
B60N 2/02 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
B60N 2/225 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
B60N 2/90 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles - Details or parts not otherwise provided for
B60N 2/16 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
An angle adjusting device is provided, which includes a ratchet, multiple sliders, an expansion and retraction mechanism, and a sliding groove plate. The ratchet is provided with n inner teeth; and m slider groups consisting of the multiple sliders include one base slider group and m−1 deflecting slider groups, where the outer teeth of the deflecting slider groups have an angular deflection about a central shaft of the ratchet with respect to the outer teeth of the base slider group, and the angular deflection is (Z+k/m)360/n degrees, and 1≤k≤m−1, and the expansion and retraction mechanism is capable of simultaneously push the multiple sliders to extend in radial directions. The outer teeth of different sliders can simultaneously abut against or be engaged with the inner teeth at different phases, thus achieving the stable securing and stepless adjusting of the ratchet position.
B60N 2/22 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
B60N 2/235 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
A seat angle adjuster and an oil gathering element. The oil gathering element (1) is fixedly connected to one component in a friction pair (2) of the seat angle adjuster. The oil gathering element (1) has an end surface (11) facing the other component in the friction pair (2). A boss (12) is disposed at each of two ends of the end surface (11), so that an oil gathering gap (13) is formed on the middle section of the end surface (11). A side surface of each boss (12) is an oil guide surface (121), and the side surfaces are disposed close to the middle of the oil gathering gap (13) gradually from outside to inside. With the oil gathering element (1), lubricant oil in a friction pair (2) can be again gathered to friction surfaces to reduce rate of wear. During movement, outer sides of the oil guide surface (121) of the boss (12) are firstly abutted against an end wall of the other component, so that the lubricant oil ground by the friction pair (2) to two ends of the other component is obstructed, the obstructed lubricant oil further flows along the oil guide surface (121) of the boss (12) to the oil gathering gap (13) on the middle section of the end surface (11) of the oil gathering element (1), and then the friction surfaces are lubricated. When the friction pair (2) rotates at a high speed, the oil gathering gap (13) of the oil gathering element (1) serves as a dynamic oil way, so that the lubricant oil is constantly gathered to be between the friction surfaces.
B60N 2/225 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
A seat recliner and an oil collecting element can re-collect the lubricating oil between a friction pair to friction surfaces, so as to reduce the wear rate. The oil collecting element is fixedly connected with one component in a friction pair of the seat recliner. The oil collecting element has an end face facing towards the other component in the friction pair, and each of two ends of the end face is provided with a boss, so as to form an oil collecting gap in the middle of the end face. The side face of the boss is an oil guiding face, and is configured gradually closer to the center of the oil collecting gap from outside to inside. During moving, an outer side of the oil guiding face of the boss firstly abuts against an end wall of the other component, so as to block the lubricating oil rolled to the two ends of the other component by the friction pair, and the blocked lubricating oil further flows towards the oil collecting gap in the middle of the end face of the oil collecting component along the oil guiding face of the boss, thus lubricating the friction surfaces. When the friction pair operates at a high speed, the oil collecting gap of the oil collecting element acts as a dynamic oil passage, and collects the lubricating oil to the portion between the friction surfaces continuously.
F16H 57/04 - Features relating to lubrication or cooling
B60N 2/22 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
B60N 2/225 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
F16H 1/32 - Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
Disclosed are a seat angle regulator and a seat. The seat angle regulator comprises an inner toothed plate with an inner toothed ring, an outer toothed plate with an outer toothed ring, a wedge block, an eccentric wheel, and a drive component, wherein the inner toothed plate is engaged with the gears of the outer toothed plate, a shaft shoulder is formed in the middle of the inner toothed plate, and the eccentric wheel is sheathed on the outer circumferential face of the shaft shoulder. The drive component comprises a drive cam and a rotating shaft, with one end of the rotating shaft fixedly connected with the middle of the drive cam and the other end penetrating through the eccentric wheel and the shaft shoulder in succession and fixed on the outer end face of the inner toothed plate axially via a locating connector.
B60N 2/02 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
B60N 2/225 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
8.
Seat angle adjustment device and seat having the same
A seat angle adjustment device includes a ratchet wheel, a stop plate, a locking slipper and a pawl, wherein a first stop position limiting part and a second stop position limiting part are arranged on the stop plate, when the first stop position limiting part is subjected to a rotating torque in a rotational direction, the locking slipper in a locking position circumferentially abuts against the first stop position limiting part; when the rotating torque is higher than a first preset torque value, the pawl in an extended state is driven by the ratchet wheel to rotate until the tooth part on one side of the pawl is completely engaged with the ratchet wheel; and when the rotating torque is higher than a second preset torque value, the second stop position limiting part abuts against the pawl. A seat having the seat angle adjustment device is also provided.
B60N 2/235 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
Disclosed are a seat angle regulator (100) and a seat. The seat angle regulator comprises an inner toothed plate (2) with an inner toothed ring (21), an outer toothed plate (3) with an outer toothed ring (31), a wedge block (6), an eccentric wheel (4), and a drive component, wherein the inner toothed plate (2) is engaged with the gears of the outer toothed plate (3), a shaft shoulder (22) is formed in the middle of the inner toothed plate (2), and the eccentric wheel (4) is sheathed on the outer circumferential face of the shaft shoulder (22). The drive component comprises a drive cam (5) and a rotating shaft (52), with one end of the rotating shaft (52) fixedly connected with the middle of the drive cam (5) and the other end penetrating through the eccentric wheel (4) and the shaft shoulder (22) in succession and fixed on the outer end face of the inner toothed plate (2) axially via a locating connector. The opposite surfaces between the drive cam (5) and the eccentric wheel (4) are provided with a resistance moment structure for transmitting moment, and the driving torque acting on the drive cam (5) is transmitted to the eccentric wheel (4) via the resistance moment structure to drive the synchronous rotation of the eccentric wheel (4), thereby transmitting the moment to the gear drive mechanism. The present invention can solve the problems of response time delay of a backrest in a backrest reversing process and noise occurring when the angle regulator reverses.
B60N 2/225 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
B60N 2/235 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
10.
SEAT ANGLE ADJUSTMENT DEVICE AND SEAT HAVING THE SAME
Disclosed in the present invention is a seat angle adjustment device, which comprises a ratchet wheel (10), a stop plate (80), a locking slipper (50) and a pawl (40), wherein a driving device can selectively drive the locking slipper (50) to be located in a locking position or a retraction position, and selectively drive the pawl (40) to be located in an extension position or a retraction position; a first stop position limiting part (85) and a second stop position limiting part (87) are arranged on the stop plate (80), when the first stop position limiting part (85) is subjected to a rotating torque in a rotational direction, the locking slipper (50) located in the locking position is circumferentially butted against the first stop position limiting part (85); when the rotating torque is higher than a first preset torque value, the first stop position limiting part (85) can generate circumferential deformation under the action of the locking slipper (50), and the pawl (40) in the extension state can rotate under the drive of the ratchet wheel (10) until the tooth part on one side of the pawl (40) is completely engaged with the ratchet wheel (10); and when the rotating torque is higher than a second preset torque value which is higher than the first preset torque value, the second stop position limiting part (87) can be butted against the pawl (40). A seat adopting the seat angle adjustment device is also disclosed.
B60N 2/235 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
B60N 2/00 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
11.
SEAT ANGLE ADJUSTER AND SELF-LOCKING MECHANISM THEREOF, AND SEAT WITH THE ANGLE ADJUSTER
A seat angle adjuster self-locking mechanism (60). One end of a locking cam (5) in a casing (1) of the mechanism axially opposite to a driving shaft (2) has at least two radial bosses (53), and a chocking region is formed between a chocking curved surface (52) between the adjacent radial bosses (53) and the casing (1). The other end of the locking cam (5) is used to drive a driving member (501) of a seat angle adjuster mechanism to rotate. Each group of wedge block components comprises two wedge blocks (3) circumferentially and symmetrically disposed in the chocking region at two sides of the radial boss (53), and big ends (35) of the two wedge blocks (3) are opposite to each other with an elastic member (4) disposed there-between. An end of the driving shaft (2) opposite to the locking cam (5) has at least two axial bosses (23), and each axial boss (23) is inserted between the adjacent wedge blocks (3) of the two adjacent groups of wedge block components. An angle is formed by a fitting surface (24) of the axial bosses (23) and the wedge blocks (3) and/or a fitting surface (34) of the wedge blocks (3) and the axial bosses (23) in a radial direction. Also disclosed are a seat angle adjuster with the self-locking mechanism and a seat using the same. Through the present invention, self-locking and control of operating torque of an angle adjuster mechanism can be effectively provided, and work noise can be reduced to the minimum.
B60N 2/22 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
A seat recliner comprises an inner toothed plate (2) having an inner ring gear (21), an outer toothed plate (3) having an outer ring gear, an eccentric wheel (4) and a wedge-shaped block (6). A shaft shoulder (22) is provided in the center of the inner toothed plate (2), and an axis central hole (32) is provided in the center of the outer toothed plate (3). The outer ring gear engages with the inner ring gear (21), and a radially eccentric area is formed between the shaft shoulder (22) and the axis central hole (32). The eccentric wheel (4) is disposed in the radially eccentric area, and appears entirely in the shape of an eccentric ring, and a planetary gear transmission mechanism with small difference between the number of teeth is constituted by the eccentric wheel (4), the inner toothed plate (2) and the outer toothed plate (3). The eccentric wheel (4) in the large-diameter segment of the radially eccentric area forms a clearance fit with the shaft shoulder (22) and the axis central hole (32). The wedge-shaped block (6) is disposed in the radially eccentric area, and clearances between the eccentric wheel (4) and the axis central hole (32) of the outer toothed plate (3) and between the engaged teeth are eliminated by the wedge-shaped block (6) and the eccentric wheel (4) under a circumferential force exerted by an elastomer (7). The seat recliner has extremely high and stable strength performance. A seat having the seat recliner is also provided.
A seat recliner comprises an inner toothed plate (2) having an inner ring gear (21), an outer toothed plate (3) having an outer ring gear, an eccentric wheel (4) and a wedge-shaped block (6). A shaft shoulder (22) is provided in the center of the inner toothed plate (2), and an axis central hole (32) is provided in the center of the outer toothed plate (3). The outer ring gear engages with the inner ring gear (21), and a radially eccentric area is formed between the shaft shoulder (22) and the axis central hole (32). The eccentric wheel (4) is disposed in the radially eccentric area, and appears entirely in the shape of an eccentric ring, and a planetary gear transmission mechanism with small difference between the number of teeth is constituted by the eccentric wheel (4), the inner toothed plate (2) and the outer toothed plate (3). The eccentric wheel (4) in the large-diameter segment of the radially eccentric area forms a clearance fit with the shaft shoulder (22) and the axis central hole (32). The wedge-shaped block (6) is disposed in the radially eccentric area, and clearances between the eccentric wheel (4) and the axis central hole (32) of the outer toothed plate (3) and between the engaged teeth are eliminated by the wedge-shaped block (6) and the eccentric wheel (4) under a circumferential force exerted by an elastomer (7). The seat recliner has extremely high and stable strength performance. A seat having the seat recliner is also provided.
B60N 2/225 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
A47C 1/024 - Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable inclination
Disclosed is a bidirectional self-locking device including a housing (10) and a gear shaft (20). A first locking device and a second locking device are disposed in the housing (10). When a first locking cam (30) is driven to rotate in a first direction, protuberances on both sides of the first locking cam (30) are respectively in contact with a first locking element (31) and a second locking element (32), such that the first locking element (31) and the second locking element (32) tend to move radially outward and thus tightly press against an inner wall of the housing (10) so as to form a locking engagement. The second locking device has a similar structure to that of the first locking device. When a second locking cam (40) is rotated in a direction opposite to the first direction, a third locking element (41) and a fourth locking element (42) press against the inner wall of the housing (10) so as to form a locking engagement. The first locking cam (30), the second locking cam (40) and the gear shaft (20) are connected through a central shaft (80). A first spring (50) and a second spring (60) cause the first locking device and the second locking device to rotate synchronically.
A bidirectional driving device includes a ratchet wheel, a movable handle, a fixed casing, a pawl reset spring, a handle reset spring and a central shaft. The handle reset spring is in an inner hole of the ratchet wheel. A positioning column of the handle reset spring is placed in sliding slots of the movable handle and of the fixed casing. First and second pawls are disposed between the ratchet wheel and the movable handle. Tooth sections of the first and second pawls are engaged with ratchet teeth of the ratchet wheel. Positioning columns of the first and second pawls are connected with the movable handle. Bosses of the first and second pawls are placed in sliding slots of the fixed casing, each composed of two circular arc slot sections with different radius. The pawl reset spring is connected with the bosses and with the central shaft.
F16D 41/16 - Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like the action being reversible
B60N 2/16 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
A self-locking structure for seat backrest folding has a seat linking board (21) fixedly linked with a seat and pivotally linked with a transitionary board (22) via an angle adjuster. The transitionary board is pivotally linked with a backrest linking board (24) and is fixedly linked with a locking block which is provided with a locking indentation (223). The backrest linking board is pivotally linked with a locking boss (26) via a locking shaft (241), and a replacement component is set between the backrest linking board and the locking boss. A locking part (261) of the locking boss engages with the locking indentation (223) under the effectof the replacement component so as to form self-locking. The locking boss (26) is linked with an unlocking mechanism, which can force the locking boss (26) to turn around the locking shaft (241) under the effect of an external force in order to unlock the locking part (261) and the locking indentation (223). Without regard to the angle of the backrest, the backrest can be folded smoothly through operating the unlocking mechanism.
B60N 2/20 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access
B60N 2/235 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
A47C 1/026 - Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable inclination by means of a peg-and-notch or pawl-and-ratchet mechanism
A bidirectional driving device includes a ratchet wheel (11), an movable handle (14), a fixed casing (17), a reset spring of the ratchet wheel (16), a reset spring of the handle (15) and a central shaft (18), wherein the ratchet wheel (11) , the active handle (14) and the fix casing (17) are connected with the center shaft (18). A positioning column of the reset spring of the handle (15) is disposed in a slide way (142) of the active handle (14) and a slide way (172) of the fix casing (17). A first pawl (12) and a second pawl (13) are disposed between the ratchet wheel (11) and the active handle (14). A teeth segment of the first pawl (12) and the second pawl (13) engages with a ratchet (111) of the ratchet wheel (11). The position columns of the first pawl (12) and the second pawl (13) are connected with the active handle (14). The bosses of the first pawl (12) and the second pawl (13) are disposed in the slide way (171,171') of said fix casing (17). The slide way (171,171') of the fix casing (17) is composed of two arc slide ways with different radiuses. The reset spring of the ratchet wheel (16), the bosses of said first pawl (12) and second pawl (13) are connected with the center shaft (18).
B60N 2/16 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
A bidirectional self-locking device includes a housing (10) and a gear shaft (20). There are a first locking device and a second locking device disposed in the housing (10). Protuberances in two sides of a first locking cam (30) are in contact with a first locking member (31) and a second locking member (32) respectively when the first locking cam (30) is rotated along a first direction, so that the first locking member (31) and the second locking member (32) have a moving tendency toward radial outer side, and the first locking member (31) and the second locking member (32) press against the inner wall of the housing (10) forming locking. The structure of the second locking device is similar to that of the first locking device. When a second locking cam (40) rotates toward the opposite direction of the first direction, the third locking member (41) and the fourth locking member (42) press against the inner wall of the housing (10) forming locking. The first locking cam (30), the second locking cam (40) and the gear shaft (20) are connected through a central shaft (80). A first spring (50) and a second spring (60) make the first locking device and the second locking device rotate synchronously.
B60N 2/16 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
19.
Gear-driven adjusting assembly for continuous adjustment of seat angle
A gear-driven adjusting assembly for continuous adjustment of seat angle is disclosed. A external gear plate of the gear transmission mechanism is mounted in a internal gear plate with a eccentricity therebetween. An external cam of a gap removing mechanism is mounted between a central boss of the internal gear plate and the inner hole of the external gear plate. An internal cam is mounted between the inner hole of the external cam and the central boss of the internal gear plate, and a spring is mounted between the two cams, which form an eccentric cam mechanism. A central shaft of a driving mechanism is provided in the hole of the central boss of the internal gear plate, a driving block of the driving mechanism is provided between the internal cam and external cam. When the spring is in a free state, the internal cam and the external cam are wedged tightly to remove the seat gap; the driving block of the driving mechanism can overcome the elastic force by a moment to release the wedge effect of the gap removing mechanism, such that the gear transmission mechanism is driven for transmission and rotation, so as to achieve the purpose of adjusting seat angle. The assembly according to the present invention has the features of compact configuration, small gap, high strength as well as high universalness, and can conveniently implement the function of manual adjustment, electrical adjustment and continuous adjustment of the seat back angle.
B60N 2/20 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access
B60N 2/225 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
B60N 2/235 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
Described herein is a recliner regulating device comprising a locking cam, an unlocking cam with a thickness less than the locking cam, a ratchet gear, a coulisse and a return spring connected with a central shaft. The locking cam is connected with the unlocking cam. Sliders are connected with the unlocking cam and sliding grooves. A jacket is connected with the ratchet gear and the coulisse. The return spring is connected with the coulisse. The thickness of the locking cam and the unlocking cam may be respectively designed in terms of the stress applied thereon. Since the locking cam and the unlocking cam are separately produced, structure of the die is simplified and service life of the die is improved significantly. The locking cam and the unlocking cam may be manufactured by punch, which leads to a greater production efficiency.
The present invention discloses a recliner regulating device comprising a cam, a return spring, a housing plate, a ratchet gear connected with a central shaft. The external hook of the return spring is fixed in a hole of the housing plate. Sliders are fitted in sliding grooves of the housing plate with the bosses of the sliders being attached with the sliding grooves of the cam. Wedges are fitted in the sliding grooves of the housing plate with the bosses of the wedges being attached with the sliding grooves of the housing plate. The sliding grooves for sliders are perpendicular to the sliding grooves for wedges. A two-point locking-up is formed between the self-locking surfaces of the sliders and the self-locking surfaces of the wedges after the position of the cam is fixed through the central shaft under the action of the return spring.
B60N 2/235 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
22.
A GEAR-TYPE STEPLESS ADJUSTING STRUCTURE FOR SEAT ANGLE
A gear-type stepless adjusting structure for seat angle has a gear transmission mechanism. External toothed plate of the gear transmission mechanism is disposed in an internal toothed plate and has an eccentric distance with respect to the internal toothed plate. There is a clearance eliminator mechanism whose external cam is disposed between the central boss of the internal toothed plate and the inner hole of the external toothed plate. There is an internal cam disposed between the inner hole of the external cam and the central boss of the internal toothed plate. There is a spring disposed between the internal cam and external cam so as to form an eccentric cam mechanism. There is a driving mechanism whose central shaft is disposed in the hole of the central boss of the internal toothed plate. There is a driving block disposed between the internal cam and the external cam. When the spring is in the free state, the internal cam and the external cam are in the wedge-tightened state, so as to eliminate the seat clearance. The driving block of the driving mechanism releases the wedge-tightened function of the clearance eliminator mechanism against the spring biased force on the function of the moment, so as to drive the gear transmission mechanism to transmit, thus adjusts the seatangle.
A47C 1/024 - Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable inclination
B60N 2/22 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
vehicle seats; seat belts for use in vehicles; gearboxes for motor cars; gearboxes; clutches for land vehicles; clutch linings for land vehicles; transmission mechanisms for land vehicles; torsion bars for motor cars; torque converters for land vehicles; land vehicle transmissions and replacement parts thereof; cable cars; suspension arms for cable cars
