CN114801911A - Seat angle adjuster with memory adjusting function and using method thereof - Google Patents
Seat angle adjuster with memory adjusting function and using method thereof Download PDFInfo
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- CN114801911A CN114801911A CN202210529553.0A CN202210529553A CN114801911A CN 114801911 A CN114801911 A CN 114801911A CN 202210529553 A CN202210529553 A CN 202210529553A CN 114801911 A CN114801911 A CN 114801911A
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- chair back
- memory
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- 230000006870 function Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title abstract description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 230000009471 action Effects 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 230000009711 regulatory function Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000006386 memory function Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—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
- B60N2/2245—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 provided with a lock mechanism on the upper part of the back-rest
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention aims to provide a seat angle adjuster with a memory adjusting function and a using method thereof, and the seat angle adjuster comprises a seat connecting plate (2), a main shaft (4) and an inner gear ring (6) which are fixedly arranged on the seat connecting plate (2), a seat back connecting plate (1) which is sleeved on the main shaft (4), a resetting piece (5) which provides resetting force for the seat back connecting plate (1), and an adjusting mechanism, a locking mechanism and a memory mechanism which are positioned in the inner gear ring (6). The angle adjuster has the functions of adjusting the angle of the chair back, memorizing and regulating, can adjust and lock the angle of the chair back, can ensure that the adjusting angle of the chair back does not exceed the memorizing angle of the chair back, can adjust the memorizing angle, and is simple, convenient and reliable to operate.
Description
Technical Field
The invention relates to seat angle adjustment, in particular to a seat angle adjuster with a memory adjusting function and a using method thereof.
Background
The angle adjuster is a device which is arranged on a seat and realizes the angle adjustment of a seat backrest. For the existing adjuster, the existing adjuster has no memory function, once the angle adjuster is adjusted, the original comfortable angle is restored, and the original state can not be restored once through trial adjustment for many times, which brings great inconvenience to the use; or only a fixed reset angle can be set, and the angle adjuster can only be restored to the fixed angle after being adjusted, and cannot set the required memory position.
Disclosure of Invention
The angle adjuster has the functions of adjusting the angle of the chair back, memorizing and memorizing, can adjust and lock the angle of the chair back, can ensure that the adjustment angle of the chair back does not exceed the memory angle of the chair back, can adjust the memory angle, and is simple, convenient and reliable to operate.
The technical scheme adopted by the invention is as follows:
a seat angle adjuster with memory adjustment function comprises a seat connecting plate (2), a main shaft (4) and an inner gear ring (6) which are fixedly arranged on the seat connecting plate (2), a chair back connecting plate (1) which is sleeved on the main shaft (4), a reset piece (5) which provides reset force for the chair back connecting plate (1), and an adjusting mechanism, a locking mechanism and a memory mechanism which are positioned in the inner gear ring (6);
the adjusting mechanism comprises a guide ring (11) and an operating ring (12) which are sleeved on the main shaft (4), and an adjusting handle (3) arranged on the operating ring (12), wherein the guide ring (11) is in sliding fit with a spiral rail (14) on the excircle of the main shaft (4), a circumferential groove (13) with inclined planes on two sides is arranged on the excircle of the guide ring (11), the operating ring (12) and the guide ring (11) are synchronously and rotatably connected and are not fixed in the axial direction, and the adjusting handle (3) drives the guide ring (11) to axially switch positions through the operating ring (12) when operating up and down;
the locking mechanism comprises at least two locking blocks (9) distributed around the main shaft (4), the locking blocks (9) are connected through an elastic piece (10) to form a ring, the side parts of the locking blocks (9) are all in radial sliding connection with the chair back connecting plate (1), the near axle center ends are all provided with inclined planes matched with the inclined planes on one side of the circumferential groove (13), and the far axle center ends are all provided with meshing teeth matched with the inner wall of the inner gear ring (6);
the memory mechanism comprises a mounting ring (7) sleeved on the main shaft (4) with a certain friction force, a rotating shaft (16) arranged on the mounting ring (7), a limiting block (8) rotatably arranged on the rotating shaft (16), and a torsion spring acting between the rotating shaft (16) and the limiting block (8), wherein an inclined plane matched with the inclined plane on the other side of the circumferential groove (13) is arranged at the end close to the shaft center of the limiting block (8), and engaging teeth matched with the inner wall of the inner gear ring (6) are arranged at the end far from the shaft center;
when the guide ring (11) is located at the middle movable adjusting position, the inclined planes at the two sides of the circumferential groove (13) are not attached to the inclined planes near the axial center end of the extrusion locking block (9) and the limiting block (8), the far axial center end of the locking block (9) is separated from the inner wall of the inner gear ring (6) under the action of the elastic piece (10), the front part of the limiting block (8) tilts to be engaged with the inner wall of the inner gear ring (6) under the action of the torsion spring, and the rear part of the limiting block (8) is used for blocking the locking block (9);
when the guide ring (11) is positioned at the locking position of one end, an inclined plane on one side of the circumferential groove (13) is attached to and extrudes an inclined plane on the near axis end of the locking block (9), an inclined plane on the other side is not attached to and extrudes an inclined plane on the near axis end of the limiting block (8), the locking block (9) overcomes the force of the elastic piece (10) and is occluded with the inner wall of the inner gear ring (6) at the far axis end, and the front part of the limiting block (8) is tilted and occluded with the inner wall of the inner gear ring (6) under the action of the torsion spring;
when the guide ring (11) is positioned at the memory adjusting position of the other end, the inclined plane on one side of the circumferential groove (13) is not attached to the inclined plane near the axis center end of the extrusion locking block (9), the inclined plane on the other side is attached to the rear part of the inclined plane near the axis center end of the extrusion limiting block (8), the far axis center end of the locking block (9) is separated from the inner wall of the inner gear ring (6) under the action of the elastic piece (10), and the limiting block (8) overcomes the force of the torsion spring to separate the front lower hem from the inner wall of the inner gear ring (6).
Furthermore, the reset piece (5) adopts a scroll spring, the scroll spring is sleeved on the main shaft (4), the inner end of the scroll spring is fixed with the main shaft (4), and the outer end of the scroll spring is fixedly connected with the chair back connecting plate (1).
Furthermore, a protective cover (15) is installed at one end of the main shaft (4), and the spiral spring (5) is covered in the protective cover (15).
Furthermore, one end of the guide ring (11) is provided with an opening cavity, a gap (17) is formed in the local excircle of the guide ring, the control ring (12) is located in the opening cavity, and the adjusting handle (3) extends out of the gap (17).
Furthermore, the control ring (12) is provided with at least two axial synchronizing shafts (18), the synchronizing shafts (18) are inserted into corresponding axial holes in the guide ring (11) in a matching mode, and the end portions of the synchronizing shafts (18) are provided with enlarged portions for preventing the synchronizing shafts from falling out of the axial holes.
Furthermore, the elastic piece (10) adopts an elastic steel hoop, and the locking block (9) is arranged on the whole circle of elastic steel hoop or is connected by the sectional elastic steel hoops.
Further, two locking blocks (9) are adopted and are symmetrically arranged around the axis.
Furthermore, the limiting block (8) is rotatably arranged on the rotating shaft (16) at an eccentric position, the front part of the rotating point of the limiting block (8) is a large part, the rear part of the rotating point of the limiting block (8) is a small part, and the torsion spring always exerts upwarping force on the front part.
The use method of the seat angle adjuster with the memory adjusting function comprises the following steps:
when the angle of the chair back needs to be movably adjusted, the adjusting handle (3) is operated to enable the guide ring (11) to be in a middle movable adjusting position, in this state, the locking block (9) is unlocked with the inner gear ring (6), the limiting block (8) is fixed with the inner gear ring (6), a user overcomes the force of the reset piece (5) to adjust the angle of the chair back, the locking block (9) rotates around the axis along with the axis, the locking block (9) can be blocked when contacting with the limiting block (8) because the angle of the limiting block (8) is the memory angle of the chair back, even if the locking block (9) impacts the limiting block (8) from the rear part, the front part of the limiting block (8) is enabled to be tilted more fixedly with the inner gear ring (6) and can not be unlocked due to impact, and therefore the adjusting angle of the chair back can not exceed the memory angle of the chair back;
when the angle of the chair back needs to be locked after being adjusted, the adjusting handle (3) is operated to enable the guide ring (11) to be located at the locking position of one end, in this state, the locking block (9) and the limiting block (8) are both fixed with the inner gear ring (6), the locking block (9) cannot rotate around the axis, and the chair back is locked;
when the memory angle of the chair back needs to be adjusted, the adjusting handle (3) is operated to enable the guide ring (11) to be in the memory adjusting position at the other end, in the state, the locking block (9) and the limiting block (8) are unlocked with the inner gear ring (6), a user applies force to adjust the angle of the chair back, the locking block (9) rotates around the axis along with the axis and pushes the limiting block (8) to change the position, and then the memory angle of the chair back is changed.
The invention has the beneficial effects that:
the angle adjuster has the functions of adjusting the angle of the chair back, memorizing and regulating, can adjust and lock the angle of the chair back, can ensure that the adjusting angle of the chair back does not exceed the memorizing angle of the chair back, can adjust the memorizing angle, and is simple, convenient and reliable to operate.
Drawings
Fig. 1 is a front cross-sectional view of a seat recliner having a memory function according to an embodiment of the present invention.
Fig. 2 is a side cross-sectional view of a seat recliner having a memory function in an embodiment of the present invention.
Fig. 3 is a schematic structural view (exploded state) of an adjusting mechanism in the embodiment of the present invention.
Fig. 4 is a schematic view of the mounting of the main shaft and the reset member in the embodiment of the present invention.
Fig. 5 is a schematic position diagram of the spindle, the locking block and the elastic member according to the embodiment of the invention.
In the figure: 1-chair back connecting plate; 2-seat connecting plate; 3-adjusting a handle; 4-a main shaft; 5-a reset piece; 6-an inner gear ring; 7-mounting a ring; 8-a limiting block; 9-a locking block; 10-a spring; 11-a guide ring; 12-a steering ring; 13-a circumferential groove; 14-a spiral track; 15-a protective cover; 16-a rotating shaft; 17-a notch; 18-synchronous shaft.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1 to 5, a seat angle adjuster with memory adjustment function comprises a seat connecting plate 2, a main shaft 4 and an inner gear ring 6 which are fixedly arranged on the seat connecting plate 2, a back connecting plate 1 which is sleeved on the main shaft 4, a reset piece 5 which provides reset force for the back connecting plate 1, and an adjusting mechanism, a locking mechanism and a memory mechanism which are arranged in the inner gear ring 6.
As shown in fig. 1 to 3, the adjusting mechanism includes a guide ring 11 and an operating ring 12 sleeved on the main shaft 4, and an adjusting handle 3 arranged on the operating ring 12, the guide ring 11 is in sliding fit with a spiral track 14 on the outer circle of the main shaft 4, a circumferential groove 13 with slopes on two sides is arranged on the outer circle of the guide ring 11, the operating ring 12 and the guide ring 11 are synchronously connected in a rotating manner and are not fixed in an axial direction, and the operating ring 12 drives the guide ring 11 to switch positions in the axial direction when the adjusting handle 3 is operated up and down.
As shown in fig. 1, 2 and 5, the locking mechanism includes at least two locking blocks 9 distributed around the main shaft 4, the locking blocks 9 are connected through an elastic member 10 to form a ring, the side portions of the locking blocks 9 are all connected with the seat back connecting plate 1 in a radial sliding manner, the end near the axial center is provided with an inclined surface matched with the inclined surface on one side of the circumferential groove 13, and the end far the axial center is provided with engaging teeth matched with the inner wall of the inner gear ring 6.
As shown in fig. 1 and 2, the memory mechanism includes a mounting ring 7 sleeved on the main shaft 4 with a certain friction force, a rotating shaft 16 arranged on the mounting ring 7, a limiting block 8 rotatably mounted on the rotating shaft 16, and a torsion spring acting between the rotating shaft 16 and the limiting block 8, wherein an inclined surface matched with the inclined surface on the other side of the circumferential groove 13 is arranged at the shaft center end near the limiting block 8, and engaging teeth matched with the inner wall of the inner gear ring 6 are arranged at the shaft center end far away from the limiting block 8.
As shown in fig. 2, when the guide ring 11 is in the middle movable adjusting position, the inclined planes at the two sides of the circumferential groove 13 do not cling to and extrude the inclined planes at the near axial ends of the locking block 9 and the limiting block 8, the far axial end of the locking block 9 is separated from the inner wall of the inner gear ring 6 under the action of the elastic member 10, the front part of the limiting block 8 tilts to be engaged with the inner wall of the inner gear ring 6 under the action of the torsion spring, and the rear part of the limiting block 8 is used for blocking the locking block 9; when the guide ring 11 is located at the locking position of one end, the inclined plane at one side of the circumferential groove 13 is attached to and extrudes the inclined plane at the near axis end of the locking block 9, the inclined plane at the other side is not attached to and extrudes the inclined plane at the near axis end of the limiting block 8, the locking block 9 overcomes the force of the elastic piece 10 and is occluded with the inner wall of the inner gear ring 6 at the far axis end, and the front part of the limiting block 8 tilts to be occluded with the inner wall of the inner gear ring 6 under the action of the torsion spring; when the guide ring 11 is at the memory adjusting position of the other end, the inclined plane on one side of the circumferential groove 13 is not attached to the inclined plane near the axis end of the extrusion locking block 9, the inclined plane on the other side is attached to the rear part of the inclined plane near the axis end of the extrusion limiting block 8, the far axis end of the locking block 9 is separated from the inner wall of the inner gear ring 6 under the action of the elastic element 10, and the limiting block 8 overcomes the force of the torsion spring to separate the front lower hem from the inner wall of the inner gear ring 6.
As shown in fig. 2 and 4, in this embodiment, the reset element 5 is a spiral spring, the spiral spring is sleeved on the main shaft 4, the inner end of the spiral spring is fixed to the main shaft 4, and the outer end of the spiral spring is fixedly connected to the seat back connection plate 1. As shown in fig. 2, in the present embodiment, a protector 15 is attached to one end of the main shaft 4, and the protector 15 covers the spiral spring 5.
As shown in fig. 3, in the present embodiment, an opening cavity is formed at one end of the guide ring 11, a notch 17 is formed in a partial outer circle, the control ring 12 is located in the opening cavity, and the adjustment handle 3 extends out of the notch 17.
As shown in fig. 2 and 3, in the present embodiment, at least two axial synchronizing shafts 18 are provided on the control ring 12, the synchronizing shafts 18 are inserted into corresponding axial holes of the guide ring 11, and the end portions of the synchronizing shafts 18 are provided with enlarged portions for preventing the synchronizing shafts from coming out of the axial holes.
In the present embodiment, as shown in fig. 5, the elastic member 10 is an elastic steel hoop, and the locking block 9 is mounted on the elastic steel hoop in a full circle or connected by a segmented elastic steel hoop.
As shown in fig. 1 and 5, in the present embodiment, two lock blocks 9 may be employed, symmetrically arranged about the axial center.
As shown in fig. 1, in the present embodiment, the limiting block 8 is rotatably mounted on the rotating shaft 16 at an eccentric position, the front portion of the rotating point of the limiting block 8 is a large portion, and the rear portion is a small portion, and the torsion spring always exerts an upward force on the front portion.
The use method of the seat angle adjuster with the memory adjusting function comprises the following steps:
when the angle of the chair back needs to be movably adjusted, the adjusting handle 3 is operated to enable the guide ring 11 to be in a middle movable adjusting position, in this state, the locking block 9 is unlocked with the inner gear ring 6, the limiting block 8 is fixed with the inner gear ring 6, a user overcomes the force of the reset piece 5 to adjust the angle of the chair back, the locking block 9 rotates around the axis along with the locking block, because the angle of the limiting block 8 is the memory angle of the chair back, the locking block 9 can be blocked when contacting the limiting block 8, even if the locking block 9 impacts the limiting block 8 from the rear part, the front part of the limiting block 8 can only be tilted more and fixed with the inner gear ring 6, and the unlocking caused by the impact is avoided, so the adjusting angle of the chair back cannot exceed the memory angle of the chair back;
when the angle of the chair back needs to be locked after being adjusted, the adjusting handle 3 is operated to enable the guide ring 11 to be located at the locking position of one end, in this state, the locking block 9 and the limiting block 8 are both fixed with the inner gear ring 6, the locking block 9 cannot rotate around the axis, and the chair back is locked;
when the memory angle of the chair back needs to be adjusted, the adjusting handle 3 is operated to enable the guide ring 11 to be in the memory adjusting position of the other end, in this state, the locking block 9 and the limiting block 8 are both unlocked with the inner gear ring 6, a user applies force to adjust the angle of the chair back, the locking block 9 rotates around the axis along with the axis and pushes the limiting block 8 to change the position, and then the memory angle of the chair back is changed.
The angle adjuster has the functions of adjusting, memorizing and memory adjusting the angle of the chair back, can adjust and lock the angle of the chair back, can ensure that the adjusting angle of the chair back does not exceed the memory angle of the chair back, can adjust the memory angle, and is simple, convenient and reliable to operate.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (9)
1. A seat angle modulation ware with memory regulatory function which characterized in that: the chair comprises a chair seat connecting plate (2), a main shaft (4) and an inner gear ring (6) which are fixedly arranged on the chair seat connecting plate (2), a chair back connecting plate (1) which is sleeved on the main shaft (4) in an empty way, a reset piece (5) which provides reset force for the chair back connecting plate (1), and an adjusting mechanism, a locking mechanism and a memory mechanism which are positioned in the inner gear ring (6);
the adjusting mechanism comprises a guide ring (11) and an operating ring (12) which are sleeved on the main shaft (4), and an adjusting handle (3) arranged on the operating ring (12), wherein the guide ring (11) is in sliding fit with a spiral rail (14) on the excircle of the main shaft (4), a circumferential groove (13) with inclined planes on two sides is arranged on the excircle of the guide ring (11), the operating ring (12) and the guide ring (11) are synchronously and rotatably connected and are not fixed in the axial direction, and the adjusting handle (3) drives the guide ring (11) to axially switch positions through the operating ring (12) when operating up and down;
the locking mechanism comprises at least two locking blocks (9) distributed around the main shaft (4), the locking blocks (9) are connected through an elastic piece (10) to form a ring, the side parts of the locking blocks (9) are all in radial sliding connection with the chair back connecting plate (1), the near axle center ends are all provided with inclined planes matched with the inclined planes on one side of the circumferential groove (13), and the far axle center ends are all provided with meshing teeth matched with the inner wall of the inner gear ring (6);
the memory mechanism comprises a mounting ring (7) sleeved on the main shaft (4) with a certain friction force, a rotating shaft (16) arranged on the mounting ring (7), a limiting block (8) rotatably arranged on the rotating shaft (16), and a torsion spring acting between the rotating shaft (16) and the limiting block (8), wherein an inclined plane matched with the inclined plane on the other side of the circumferential groove (13) is arranged at the end close to the shaft center of the limiting block (8), and engaging teeth matched with the inner wall of the inner gear ring (6) are arranged at the end far from the shaft center;
when the guide ring (11) is located at the middle movable adjusting position, the inclined planes at the two sides of the circumferential groove (13) are not attached to the inclined planes near the axial center end of the extrusion locking block (9) and the limiting block (8), the far axial center end of the locking block (9) is separated from the inner wall of the inner gear ring (6) under the action of the elastic piece (10), the front part of the limiting block (8) tilts to be engaged with the inner wall of the inner gear ring (6) under the action of the torsion spring, and the rear part of the limiting block (8) is used for blocking the locking block (9);
when the guide ring (11) is positioned at the locking position of one end, an inclined plane on one side of the circumferential groove (13) is attached to and extrudes an inclined plane on the near axis end of the locking block (9), an inclined plane on the other side is not attached to and extrudes an inclined plane on the near axis end of the limiting block (8), the locking block (9) overcomes the force of the elastic piece (10) and is occluded with the inner wall of the inner gear ring (6) at the far axis end, and the front part of the limiting block (8) is tilted and occluded with the inner wall of the inner gear ring (6) under the action of the torsion spring;
when the guide ring (11) is positioned at the memory adjusting position of the other end, the inclined plane on one side of the circumferential groove (13) is not attached to the inclined plane near the axis center end of the extrusion locking block (9), the inclined plane on the other side is attached to the rear part of the inclined plane near the axis center end of the extrusion limiting block (8), the far axis center end of the locking block (9) is separated from the inner wall of the inner gear ring (6) under the action of the elastic piece (10), and the limiting block (8) overcomes the force of the torsion spring to separate the front lower hem from the inner wall of the inner gear ring (6).
2. The seat recliner with the memory adjustment function of claim 1 wherein: the reset piece (5) adopts a volute spiral spring, the volute spiral spring is sleeved on the main shaft (4), the inner end of the volute spiral spring is fixed with the main shaft (4), and the outer end of the volute spiral spring is fixedly connected with the chair back connecting plate (1).
3. The seat recliner with the memory adjustment function of claim 2 wherein: one end of the main shaft (4) is provided with a protective cover (15), and the protective cover (15) covers the volute spiral spring (5).
4. The seat recliner with the memory adjustment function of claim 1 wherein: one end of the guide ring (11) is provided with an opening cavity, a gap (17) is arranged on a local excircle, the control ring (12) is positioned in the opening cavity, and the adjusting handle (3) extends out of the gap (17).
5. The seat recliner with the memory adjustment function of claim 1 wherein: the control ring (12) is provided with at least two axial synchronizing shafts (18), the synchronizing shafts (18) are inserted into corresponding axial holes in the guide ring (11) in a matching mode, and the end portions of the synchronizing shafts (18) are provided with enlarged portions for preventing the synchronizing shafts from falling out of the axial holes.
6. The seat recliner with the memory adjustment function of claim 1 wherein: the elastic piece (10) adopts an elastic steel hoop, and the locking block (9) is arranged on the whole circle of elastic steel hoop or is connected by the sectional elastic steel hoops.
7. The seat recliner with the memory adjustment function of claim 1 wherein: two locking blocks (9) are adopted and are symmetrically arranged around the axis.
8. The seat recliner with the memory adjustment function of claim 1 wherein: the limiting block (8) is rotatably arranged on the rotating shaft (16) at an eccentric position, the front part of the rotating point of the limiting block (8) is a large part, the rear part of the rotating point of the limiting block (8) is a small part, and the torsional spring always exerts upwarping force on the front part.
9. Use of a seat recliner as claimed in any one of claims 1 to 8 having a memory adjustment function, wherein:
when the angle of the chair back needs to be movably adjusted, the adjusting handle (3) is operated to enable the guide ring (11) to be in a middle movable adjusting position, in this state, the locking block (9) is unlocked with the inner gear ring (6), the limiting block (8) is fixed with the inner gear ring (6), a user overcomes the force of the reset piece (5) to adjust the angle of the chair back, the locking block (9) rotates around the axis along with the axis, the locking block (9) can be blocked when contacting with the limiting block (8) because the angle of the limiting block (8) is the memory angle of the chair back, even if the locking block (9) impacts the limiting block (8) from the rear part, the front part of the limiting block (8) is enabled to be tilted more fixedly with the inner gear ring (6) and can not be unlocked due to impact, and therefore the adjusting angle of the chair back can not exceed the memory angle of the chair back;
when the angle of the chair back needs to be locked after being adjusted, the adjusting handle (3) is operated to enable the guide ring (11) to be located at the locking position of one end, in this state, the locking block (9) and the limiting block (8) are both fixed with the inner gear ring (6), the locking block (9) cannot rotate around the axis, and the chair back is locked;
when the memory angle of the chair back needs to be adjusted, the adjusting handle (3) is operated to enable the guide ring (11) to be in the memory adjusting position at the other end, in the state, the locking block (9) and the limiting block (8) are unlocked with the inner gear ring (6), a user applies force to adjust the angle of the chair back, the locking block (9) rotates around the axis along with the axis and pushes the limiting block (8) to change the position, and then the memory angle of the chair back is changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210529553.0A CN114801911B (en) | 2022-05-16 | 2022-05-16 | Seat angle adjuster with memory adjusting function and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210529553.0A CN114801911B (en) | 2022-05-16 | 2022-05-16 | Seat angle adjuster with memory adjusting function and using method thereof |
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| Publication Number | Publication Date |
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| CN114801911A true CN114801911A (en) | 2022-07-29 |
| CN114801911B CN114801911B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210529553.0A Active CN114801911B (en) | 2022-05-16 | 2022-05-16 | Seat angle adjuster with memory adjusting function and using method thereof |
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