CN216359926U - Zero-gravity seat adjusting mechanism with seat and backrest linkage - Google Patents
Zero-gravity seat adjusting mechanism with seat and backrest linkage Download PDFInfo
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- CN216359926U CN216359926U CN202122764809.XU CN202122764809U CN216359926U CN 216359926 U CN216359926 U CN 216359926U CN 202122764809 U CN202122764809 U CN 202122764809U CN 216359926 U CN216359926 U CN 216359926U
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- seat cushion
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Abstract
The utility model provides a seat-rest linkage zero-gravity seat adjusting mechanism, and belongs to the technical field of seat adjusting devices. This zero gravity seat adjustment mechanism of seat-rest linkage includes: the first angle adjuster is rotatably connected to two ends of the backrest framework; one end of the banana arm is rotatably connected with the upper plate of the first angle adjuster, and the other end of the banana arm is fixedly connected with a front transverse pipe positioned above the front end of the lower edge beam of the seat cushion; the driving device is used for driving the front transverse pipe to lift and descend; a front connecting bracket and a rear connecting bracket are sequentially arranged between the two ends of the front transverse pipe and the lower side beam of the seat cushion; one end of the front connecting support is rotatably connected with the front transverse pipe, the other end of the front connecting support is rotatably connected with one end of the rear connecting support, and the other end of the rear connecting support is rotatably connected with the lower edge beam of the seat cushion through a rotating device. The seat-rest linkage zero-gravity seat adjusting mechanism provided by the utility model can enable passengers to reach zero-gravity postures, and has lower requirements on the strength of driving and driven parts.
Description
Technical Field
The utility model relates to the technical field of seat adjusting devices, in particular to a seat-rest linkage zero-gravity seat adjusting mechanism.
Background
Along with the development of the automobile industry, the requirements of an automobile host factory on the automobile seat are more and more, and the requirements of passengers on achieving the most comfortable postures during riding are met for improving the comfort. The traditional zero-gravity seat structure jacks up the whole seat, so that the seat cushion is lifted up. The force value required by the structure to drive is too large, and the requirements on the driving of the seat and the strength of the driven parts are high.
SUMMERY OF THE UTILITY MODEL
In view of the above, in order to solve the passenger requirement and reduce the technical problems of driving and driving part strength, the utility model provides a seat-rest linkage zero-gravity seat adjusting mechanism, which can enable a passenger to reach a zero-gravity posture and has low requirements on driving and driven part strength.
In order to achieve the purpose, the utility model provides the following technical scheme:
a seat-rest linked zero-gravity seat adjustment mechanism comprising:
the first angle adjuster is rotatably connected to two ends of the backrest framework;
one end of the banana arm is rotatably connected with the upper plate of the first angle adjuster, and the other end of the banana arm is fixedly connected with a front transverse pipe positioned above the front end of the lower edge beam of the seat cushion;
the driving device is used for driving the front transverse pipe to lift and descend;
a front connecting bracket and a rear connecting bracket are sequentially arranged between the two ends of the front transverse pipe and the lower side beam of the seat cushion;
one end of the front connecting support is rotatably connected with the front transverse pipe, the other end of the front connecting support is rotatably connected with one end of the rear connecting support, and the other end of the rear connecting support is rotatably connected with the lower edge beam of the seat cushion through a rotating device.
Preferably, the rotating device is a rotating connecting shaft, the rotating connecting shafts at two ends of the seat cushion framework are connected through a synchronizing pipe, and the synchronizing pipe and the rear connecting bracket synchronously rotate through the rotating connecting shafts;
the driving device includes:
the screw rod motor is rotationally connected to the inner side of the lower edge beam of the seat cushion;
the synchronous tube is provided with a sliding block support, the sliding block support is rotatably connected with a sliding block, and the sliding block is connected with a motor screw rod of a screw rod motor in a sliding mode.
Preferably, the inboard fixedly connected with motor fixed bolster of seatpad lower limb, be provided with the motor support on the motor fixed bolster, the lead screw motor with the motor support rotates to be connected.
Preferably, a self-lubricating bushing is arranged between the rotary connecting shaft and the seat cushion lower edge beam.
Preferably, the rotating device is a second angle adjuster, and the second angle adjusters positioned at two ends of the seat cushion framework are connected through a synchronizing rod;
the driving device is an angle adjusting motor used for driving the second angle adjuster to rotate.
Preferably, a front reinforcing pipe is connected between the two seat cushion lower edge beams, and the front reinforcing pipe is positioned above the front ends of the two seat cushion lower edge beams.
Preferably, the banana arm is located inside the seat cushion lower side beam, and the front connecting bracket and the rear connecting bracket are located outside the seat cushion lower side beam.
Preferably, the seat cushion lower side beam is provided with a conformal feature at the lower front part of the front transverse pipe.
Preferably, the lower plate of the first recliner is connected to the seat cushion rocker.
Preferably, one end of the banana arm close to the first angle adjuster is rotatably connected through a seat cushion frame tube.
Compared with the prior art, the utility model has the following beneficial effects:
1. the seat-rest linkage zero-gravity seat adjusting mechanism provided by the utility model can enable passengers to reach zero-gravity postures, and has lower requirements on the strength of driving and driven parts.
2. According to the seat-back linkage zero-gravity seat adjusting mechanism, when the back is independently adjusted, the seat cushion can be linked.
3. According to the seat-rest linkage zero-gravity seat adjusting mechanism, the banana arm is arranged on the inner side of the lower edge beam of the seat cushion, the front connecting support and the rear connecting support are arranged on the outer side of the lower edge beam of the seat cushion, and during a strength test, the seat cushion is stressed slightly, the requirement on the strength of the seat cushion is low, and the requirements on the strength of the rear connecting support and the front connecting support are low. And at the same time, the strength of the whole chair is not reduced.
4. According to the seat-back linkage zero-gravity seat adjusting mechanism provided by the utility model, the shape following characteristic of the lower edge beam of the seat cushion is arranged in the position which is about a few millimeters in front of the lower part of the front transverse pipe, when a front collision test is faced, the front transverse pipe is upwards propped by the shape following characteristic of the lower edge beam of the seat cushion after the seat cushion has a downward deformation trend, so that the downward displacement of the seat cushion is reduced, and meanwhile, the front connecting support and the banana arm clamp the lower edge beam of the seat cushion in the middle, so that the possibility of side turning of the seat cushion is eliminated.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a schematic illustration of the location of a conformal feature of the present invention;
FIG. 3 is an enlarged view of the conformal feature of the present invention;
FIG. 4 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 5 is a first schematic diagram illustrating operation of a first embodiment of the present invention;
FIG. 6 is a second schematic diagram of the operation of the first embodiment of the present invention;
FIG. 7 is a third schematic diagram of the operation of the first embodiment of the present invention;
FIG. 8 is a fourth schematic diagram illustrating operation of the first embodiment of the present invention;
FIG. 9 is a first schematic diagram of the second embodiment of the present invention;
FIG. 10 is a second operational schematic diagram of a second embodiment of the present invention;
FIG. 11 is a third schematic diagram of the operation of the second embodiment of the present invention;
FIG. 12 is a fourth schematic diagram illustrating operation of a second embodiment of the present invention;
in the figure, 1, a first angle adjuster, 2, a first cushion lower edge beam, 3, a rotary connecting shaft, 4, a rear connecting support, 5, a front connecting support, 6, a front transverse pipe, 7, a first banana arm, 8, a synchronizing pipe, 9, a sliding block support, 10, a sliding block, 11, a second banana arm, 12, a motor screw rod, 13, a motor support, 14, a motor fixing support, 15, a second cushion lower edge beam, 16, a cushion frame pipe, 17, a lower plate, 18, an upper plate, 19, an upper plate upper end, 20, a screw rod motor, 21, a second angle adjuster, 22, an angle adjusting motor, 23, a front reinforcing pipe, 24, a shape following characteristic and 25 are included.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1-3, the present invention provides a zero-gravity seat adjustment mechanism with linked seat backs, comprising:
the first angle adjuster 1 is rotatably connected to two ends of the backrest framework;
one end of the banana arm is rotatably connected with the upper plate 18 of the first angle adjuster 1, and the other end of the banana arm is fixedly connected with the front transverse tube 6 positioned above the front end of the lower edge beam of the seat cushion;
the driving device is used for driving the front transverse tube 6 to lift and descend;
a front connecting bracket 5 and a rear connecting bracket 4 are sequentially arranged between the two ends of the front transverse pipe 6 and the lower edge beam of the seat cushion;
one end of the front connecting bracket 5 is rotatably connected with the front transverse pipe 6, the other end of the front connecting bracket is rotatably connected with one end of the rear connecting bracket 4, and the other end of the rear connecting bracket 4 is rotatably connected with the lower edge beam of the seat cushion through a rotating device.
In the utility model, the rotating device is a rotating connecting shaft 3, the rotating connecting shafts 3 positioned at two ends of the seat cushion framework are connected through a synchronizing tube 8, and the synchronizing tube 8 and the rear connecting bracket 4 synchronously rotate through the rotating connecting shafts 3;
the driving device includes:
a screw motor 20 rotatably connected to an inner side of the seat cushion lower side beam;
the synchronous tube 8 is provided with a slide block support 9, the slide block support 9 is connected with a slide block 10 in a rotating mode, and the slide block 10 is connected with a motor screw rod 12 of a screw rod motor 20 in a sliding mode.
In the utility model, the inner side of the lower edge beam of the seat cushion is fixedly connected with a motor fixing support 14, the motor fixing support 14 is provided with a motor support 13, the screw rod motor 20 is rotatably connected with the motor support 13, and the motor fixing support 14 can be fixedly connected with the lower edge beam of the seat cushion in a welding or bolt connection mode.
In the utility model, a self-lubricating bushing is arranged between the rotary connecting shaft 3 and the lower edge beam of the seat cushion and is used for eliminating abnormal sound when the synchronous pipe rotates.
In the present invention, the banana arm is located inside the seat cushion lower side beam, and the front connecting bracket 5 and the rear connecting bracket 4 are located outside the seat cushion lower side beam.
In the utility model, the cushion lower side beam is provided with a conformal feature 24 at the lower front part of the front transverse pipe 6, and when the cushion has a downward deformation tendency in a front collision test, the front transverse pipe 6 is upwards propped by two positions of the cushion lower side beam, so that the downward displacement of the cushion is reduced. Meanwhile, the front connecting bracket 5 and the banana arms (the first banana arm 7 and the second banana arm 11) clamp the first cushion lower edge beam 2 and the second cushion lower edge beam 15 in the middle, so that the possibility of side turning of the cushion is eliminated.
In the present invention, the lower plate 17 of the first recliner 1 is connected to the seat cushion rocker in a bolt connection manner. When the seat is subjected to strength tests such as a safety belt test, a trunk test, a rear collision test and the like, the force applied to the seat back is directly transmitted to the cushion lower side beams (the first cushion lower side beam 2 and the second cushion lower side beam 15) through the angle adjuster lower plate 17, and is transmitted to the slide rail. The cushion is stressed a little, the requirement on the strength of the cushion is low, and the requirements on the strength of the rear connecting bracket 4 and the front connecting bracket 5 are low. And at the same time, the strength of the whole chair is not reduced.
In the present invention, the end of the banana arm near the first recliner 1 is pivotally connected by a seat frame tube 16.
In the above structure of the present invention, the slider 10 is rotatable in the slider bracket 9, the lead screw motor 20 is rotatable in the motor bracket 13, and when the seat cushion is adjusted, the slider 10 slides back and forth in the motor lead screw 12, thereby driving the synchronizing tube 8 to rotate (rotate), and the lead screw motor 20 also rotates (rotate) in the motor bracket 13.
In the structure of the utility model, the banana arms (the first banana arm 7 and the second banana arm 11) are welded with the front transverse tube 6, and the banana arms are provided with the first banana arm 7 and the second banana arm 11 and are oppositely arranged; the lower side beams (the first cushion lower side beam 2 and the second cushion lower side beam 15) of the seat cushion are directly connected with a lower sliding rail, a rotary table, a floor or other parts, and comprise the first cushion lower side beam 2 and the second cushion lower side beam 15 which are respectively positioned at two sides of the seat cushion framework and symmetrically arranged; the two sides of the backrest framework are respectively provided with a first angle adjuster 1.
In the structure of the utility model, the synchronous tube 8 is welded with the rotary connecting shaft 3, the rear connecting bracket 4 and the slider bracket 9, the welding assembly can rotate in the seat cushion lower edge beam (the first seat cushion lower edge beam 2 and the second seat cushion lower edge beam 15), and a self-lubricating bush is arranged between the seat cushion lower edge beam and the rotary connecting shaft 3. Eliminate abnormal sound when the synchronizing tube 8 rotates.
Example two
As shown in fig. 4, the same as the first embodiment, except that the rotating device in this embodiment uses the second recliner 21, the second recliners 21 located at the two ends of the seat cushion frame are connected by the synchronizing rod 25;
the driving device is a recliner motor 22 for driving the second recliner 21 to rotate.
In this embodiment, a front reinforcing pipe 23 is connected between the two seat cushion lower side beams, and the front reinforcing pipe 23 is located at the front ends of the two seat cushion lower side beams.
In the above-described structure of this embodiment, the raising of the seat cushion is performed by driving the second recliner 21 by the recliner motor 22, and the second recliner 21 is welded to the seat cushion rocker and the rear connecting bracket 4. When the recliner motor 22 is driven, the rear connecting bracket 4 rotates around the second recliner 21, thereby driving the seat cushion to be lifted upward.
The working principle of the utility model is as follows:
to the embodiment one
Fig. 5 to 8 are schematic diagrams illustrating the operation of the first embodiment of the present invention:
as shown in fig. 5, which is a design position diagram for backrest adjustment, fig. 6 is a schematic diagram of backrest backward rotation, when the backrest is adjusted, the rotation point a drives the rotation point B to rotate around a, and pushes the rotation point C to rotate around the rotation point D. The backrest is adjusted backward, the rotation point B rotates forward around the rotation point a, and the rotation point C rotates forward around the rotation point D, thereby lifting up the seat cushion. Wherein, ABCDE constitutes the link mechanism, A, E two points are fixed, AB rotates around A point, thus pushing the rotation point C to rotate around the rotation point D, and the rotation point D rotates around the rotation point E, and then the seat cushion is lifted up or lowered down.
As shown in fig. 7, a schematic diagram of a normal position of the seat is adjusted, and fig. 8 is a schematic diagram of a zero gravity posture position, when the seat cushion is adjusted, a motor lead screw HI (same as a reference motor lead screw 12) of the lead screw motor 20 drives a rotating shaft F (corresponding to a rotating shaft at a rotating connection position of the slider 9 and the motor lead screw 12) to approach to a point H (a fixed length of FE is unchanged), so that DE rotates backwards around a point E of the rotating point, and a point D of the rotating point rises, thereby lifting the seat cushion BC upwards. When the seat cushion is adjusted, the rotation point BCDE forms a four-bar mechanism, the BE two points are fixed and cannot BE understood, and the DE rotates around the rotation point E point, so that the seat cushion is lifted upwards or lowered.
For the second embodiment
As shown in fig. 9, which is a design position diagram for backrest adjustment, fig. 10 is a schematic diagram of backrest backward rotation, when the backrest is adjusted, the rotation point a drives the rotation point B to rotate around a, and pushes the rotation point C to rotate around the rotation point D. The backrest is adjusted backward, the rotation point B rotates forward around the rotation point a, and the rotation point C rotates forward around the rotation point D, thereby lifting up the seat cushion. Wherein, ABCDE constitutes the link mechanism, A, E two points are fixed, AB rotates around A point, thus pushing the rotation point C to rotate around the rotation point D, and the rotation point D rotates around the rotation point E, and then the seat cushion is lifted up or lowered down.
As shown in fig. 11, which is a schematic diagram of the normal position of the seat, and fig. 12 is a schematic diagram of the zero gravity posture position, when the seat cushion is adjusted, the second recliner 21 is determined by the recliner motor 22 to adjust ED to rotate backwards around the point E of rotation, and the point B of rotation is fixed, so as to adjust the seat cushion to lift upwards. When the seat cushion is adjusted, the rotation point BCDE forms a four-bar linkage mechanism, B E two points are fixed, and DE rotates around the rotation point E point, so that the seat cushion is lifted or lowered upwards.
The above are merely preferred embodiments of the present invention; the scope of the utility model is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. A zero-gravity seat adjustment mechanism with linked seat and backrest, comprising:
the first angle adjuster is rotatably connected to two ends of the backrest framework;
one end of the banana arm is rotatably connected with the upper plate of the first angle adjuster, and the other end of the banana arm is fixedly connected with a front transverse pipe positioned above the front end of the lower edge beam of the seat cushion;
the driving device is used for driving the front transverse pipe to lift and descend;
a front connecting bracket and a rear connecting bracket are sequentially arranged between the two ends of the front transverse pipe and the lower side beam of the seat cushion;
one end of the front connecting support is rotatably connected with the front transverse pipe, the other end of the front connecting support is rotatably connected with one end of the rear connecting support, and the other end of the rear connecting support is rotatably connected with the lower edge beam of the seat cushion through a rotating device.
2. A seat-rest linked zero-gravity seat adjusting mechanism as claimed in claim 1, wherein the rotating device is a rotating connecting shaft, the rotating connecting shafts at the two ends of the seat cushion frame are connected through a synchronizing tube, and the synchronizing tube rotates synchronously with the rear connecting bracket through the rotating connecting shaft;
the driving device includes:
the screw rod motor is rotationally connected to the inner side of the lower edge beam of the seat cushion;
the synchronous tube is provided with a sliding block support, the sliding block support is rotatably connected with a sliding block, and the sliding block is connected with a motor screw rod of a screw rod motor in a sliding mode.
3. A seat-rest linked zero gravity seat adjusting mechanism as claimed in claim 2, wherein a motor fixing bracket is fixedly connected to the inner side of the seat cushion lower edge beam, a motor bracket is provided on the motor fixing bracket, and the screw motor is rotatably connected with the motor bracket.
4. A seat-rest linked zero-gravity seat adjustment mechanism according to claim 2, wherein a self-lubricating bushing is provided between the swivel connection shaft and the seat cushion rocker.
5. A seat-rest linked zero-gravity seat adjusting mechanism as claimed in claim 1, wherein the rotating means is a second recliner, the second recliners located at both ends of the seat cushion frame are connected by a synchronizing bar;
the driving device is an angle adjusting motor used for driving the second angle adjuster to rotate.
6. A seat cushion linkage zero gravity seat adjustment mechanism according to claim 5, wherein a front reinforcement tube is connected between the two seat cushion rocker beams, the front reinforcement tube being located above the front ends of the two seat cushion rocker beams.
7. A seat cushion linkage zero gravity seat adjustment mechanism according to claim 1, wherein the banana arm is located inside the seat cushion rocker and the front and rear attachment brackets are located outside the seat cushion rocker.
8. A seat-rest linked zero-gravity seat adjustment mechanism according to claim 7, wherein the cushion rocker is provided with a shape-following feature at the lower front of the front cross tube.
9. A seat-rest linkage zero-gravity seat adjustment mechanism according to claim 1, wherein the lower plate of the first recliner is connected to the seat cushion rocker.
10. A seat-rest linkage zero-gravity seat adjustment mechanism according to any of claims 1-9, wherein the end of the banana arm near the first recliner is pivotally connected by a seat frame tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122764809.XU CN216359926U (en) | 2021-11-12 | 2021-11-12 | Zero-gravity seat adjusting mechanism with seat and backrest linkage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122764809.XU CN216359926U (en) | 2021-11-12 | 2021-11-12 | Zero-gravity seat adjusting mechanism with seat and backrest linkage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216359926U true CN216359926U (en) | 2022-04-22 |
Family
ID=81188212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122764809.XU Active CN216359926U (en) | 2021-11-12 | 2021-11-12 | Zero-gravity seat adjusting mechanism with seat and backrest linkage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216359926U (en) |
-
2021
- 2021-11-12 CN CN202122764809.XU patent/CN216359926U/en active Active
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