Motor front-mounted adjustable seat cushion and automobile seat

Abstract

The utility model relates to the technical field of automobile seats, and discloses a motor front-mounted adjustable seat cushion and an automobile seat, the motor front-mounted adjustable seat cushion comprises a mounting underframe, a seat basin, a front support and a driving mechanism; a chute is arranged close to the rear end of the mounting underframe; the rear end of the seat basin is arranged on the mounting bottom frame and can slide along the sliding chute; the front end of the seat basin is hinged to the front support, and the front support is hinged to the installation bottom frame. The driving mechanism comprises a motor and a telescopic rod connected with the motor, and the motor is rotatably arranged on the mounting bottom frame and is close to the front end of the mounting bottom frame; one end of the telescopic rod away from the motor is hinged with the rear end of the basin; the motor drives the telescopic rod to retract, so that the rear end of the seat basin can slide forwards along the sliding groove, the inclination angle of the seat basin is changed, and the seat basin dives. The adjustable seat cushion with the front-mounted motor has the advantages that the seat basin of the adjustable seat cushion with the front-mounted motor slides smoothly, the stability is good, the overall structure is simple, the number of parts is small, and the cost is low.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a motor-driven adjustable seat cushion and automotive seat. Background Technology

[0002] For some second-row car seats with forward folding function, the seat basin is required to meet the normal electric tilt adjustment function during normal use; when the backrest needs to be folded onto the seat cushion, the seat basin is required to be able to sink forward and down to avoid interference between the backrest and the seat basin when the backrest flips forward and is folded.

[0003] In existing car seats with forward-folding function, the seat basin is adjusted by extending a telescopic rod driven by a motor, causing the basin to gradually move forward. However, the motor is rear-mounted, far from the sliding groove on the base, which can lead to uneven sliding; furthermore, the gradually extending telescopic rod results in poor stability; and the overall structure is complex. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a front-mounted adjustable seat cushion and car seat with smooth movement, simple structure and good stability.

[0005] The technical solution adopted by this utility model to solve its technical problem is to propose a front-mounted adjustable seat cushion for use in automobile seats, comprising:

[0006] Install the base frame, seat, front bracket, and drive mechanism;

[0007] The mounting base is provided with a sliding groove near its rear end; the rear end of the basin is mounted on the mounting base and can slide along the sliding groove; the front end of the basin is hinged to the front bracket, and the front bracket is hinged to the mounting base.

[0008] The drive mechanism includes a motor and a telescopic rod connected thereto. The motor is rotatably mounted on the mounting base and is located near the front end of the mounting base. The end of the telescopic rod away from the motor is hinged to the rear end of the basin.

[0009] The motor drives the telescopic rod to retract, which allows the rear end of the seat to slide forward along the slide groove, changing the tilt angle of the seat and causing the seat to submerge.

[0010] Furthermore, a connecting bracket extends downward from the rear end of the basin, and the end of the telescopic rod away from the motor is hinged to the connecting bracket.

[0011] Furthermore, the rear end of the basin has a fixed rod, and the connecting bracket is located on the fixed rod and fixedly connected to the fixed rod.

[0012] Furthermore, a crossbar is provided on the mounting base, and a motor mounting bracket extends from the crossbar, on which the motor is rotatably mounted.

[0013] Furthermore, the front support has a notch, which is located on the crossbar after the sitz bath has submerged.

[0014] Furthermore, when the motor drives the telescopic rod to retract, causing the rear end of the seat to slide along the rear end of the slide groove to the front end of the slide groove, the rear end of the seat moves forward a distance greater than or equal to 149 mm, and the seat sinks to a height greater than or equal to 54 mm.

[0015] Furthermore, the number of the motor and the telescopic rod is one.

[0016] Furthermore, two sheet metal parts are symmetrically arranged on the inner side of the mounting base, and the slide groove is provided on the sheet metal parts;

[0017] The chute includes a horizontal chute section and a downward chute section that are connected to each other, and the downward chute section is S-shaped.

[0018] Furthermore, the number of the front supports is set to two, and the two front supports are symmetrically supported on both sides of the front end of the sitz bath.

[0019] This utility model also proposes a car seat, comprising:

[0020] Backrest and the aforementioned front-mounted adjustable seat cushion;

[0021] When the seat basin is lowered, the backrest can be flipped forward and folded onto the seat basin.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] In this invention, the motor is positioned near the front end of the mounting base, i.e., the motor is front-mounted. The end of the telescopic rod furthest from the motor is hinged to the rear end of the seat. The motor drives the telescopic rod to retract, causing the rear end of the seat to slide forward along the slide groove. When adjusting the seat's tilt angle and during the downward movement, the point of force application is at the rear end of the seat, close to the slide groove, ensuring smoother sliding of the seat. Furthermore, its overall structure is simple, with few parts, and low cost.

[0024] In this invention, the tub is lowered by retracting the telescopic rod driven by a motor, and the length of the telescopic rod gradually shortens to avoid large spans and improve stability.

[0025] In this invention, a motor mounting bracket extends from the crossbar, and the motor is rotatably mounted on the motor mounting bracket; a connecting bracket extends downward from the rear end of the seat, and the end of the telescopic rod away from the motor is hinged to the connecting bracket; and by not placing the drive end on the front bracket, the overall layout of the drive mechanism can be made more downward, freeing up Z-axis space to install other accessories, and the sinking space of the seat is larger. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the adjustable seat cushion of this utility model;

[0027] Figure 2 for Figure 1 A structural diagram from another perspective;

[0028] Figure 3 for Figure 1 A schematic diagram after the main structure of the sitz bath has been removed;

[0029] Figure 4 for Figure 2 A schematic diagram after removing the main structure of the sitz bath.

[0030] In the picture:

[0031] 1. Mounting base; 10. Sheet metal parts; 101. Slide groove; 101A. Horizontal groove section; 101B. Lower sliding groove section; 11. Crossbar; 110. Motor mounting bracket;

[0032] 2. Drive mechanism; 20. Motor; 21. Telescopic rod;

[0033] 3. Sink; 30. Connecting bracket; 31. Fixing rod;

[0034] 4. Front bracket; 40. Notch. Detailed Implementation

[0035] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0036] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0037] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0040] Example 1:

[0041] like Figures 1-4 As shown, a front-mounted adjustable seat cushion with a motor 20 is used in automobile seats and mainly includes: a mounting base 1, a seat basin 3, a front bracket 4, and a drive mechanism 2.

[0042] The mounting base 1 has a sliding groove 101 near its rear end; the rear end of the basin 3 is mounted on the mounting base 1 and can slide along the sliding groove 101; the front end of the basin 3 is hinged to the front support 4, and the front support 4 is hinged to the mounting base 1. The drive mechanism 2 includes a motor 20 and a telescopic rod 21 connected thereto. The motor 20 is rotatably mounted on the mounting base 1 and is located near the front end of the mounting base 1; the end of the telescopic rod 21 away from the motor 20 is hinged to the rear end of the basin 3.

[0043] In actual use, the motor 20 drives the telescopic rod 21 to retract, allowing the rear end of the seat basin 3 to slide forward along the slide groove 101, changing the tilt angle of the seat basin 3 and causing the seat basin 3 to submerge. There is one motor 20 and one telescopic rod 21, and two front supports 4, symmetrically supporting the front ends of the seat basin 3 on both sides. The telescopic rod 21 can be a lead screw with a threaded sleeve, which is an existing structure and will not be described further here.

[0044] When the motor 20 retracts by driving the telescopic rod 21, causing the rear end of the seat basin 3 to slide along the rear end of the slide groove 101 to the front end of the slide groove 101, the rear end of the seat basin 3 moves forward a distance greater than or equal to 149mm, and the seat basin 3 sinks down a height greater than or equal to 54mm. This ensures that after the seat basin 3 sinks down, it can free up enough space for the backrest to flip forward, ensuring that the folded car seat is compact and occupies little space.

[0045] In this embodiment, the motor 20 is positioned near the front end of the mounting base 1, i.e., the motor 20 is front-mounted. The end of the telescopic rod 21 away from the motor 20 is hinged to the rear end of the basin 3. The motor 20 drives the telescopic rod 21 to retract, causing the rear end of the basin 3 to slide forward along the slide groove 101. When adjusting the tilt angle and lowering motion of the basin 3, the point of force application is at the rear end of the basin 3, close to the slide groove 101, which ensures smoother sliding of the basin 3. Furthermore, its overall structure is simple, with few parts, and low cost.

[0046] Furthermore, the seat basin 3 is lowered by retracting the telescopic rod 21 driven by the motor 20, and the length of the telescopic rod 21 gradually shortens to avoid large spans and improve stability. In contrast, the seat basin 3 in existing car seats is generally driven by the thrust of the telescopic rod 21 during the lowering process. That is, the motor 20 generally drives the telescopic rod 21 to gradually extend, causing the seat basin 3 to gradually lower. As the telescopic rod 21 gradually extends, its length and span increase, and its rigidity gradually decreases, which can easily lead to poor stability of the seat basin 3 during the lowering movement.

[0047] Specifically, in this embodiment, a connecting bracket 30 extends downward from the rear end of the seat basin 3. The end of the telescopic rod 21 away from the motor 20 is hinged to the connecting bracket 30. By extending the connecting bracket 30 downward from the rear end of the seat basin 3, the telescopic rod 21 can be hinged to the connecting bracket 30, allowing the telescopic rod 21 to be positioned downwards. Furthermore, in this embodiment, the drive point is at the rear end, rather than on the front bracket 4, allowing the motor 20 to be positioned downwards.

[0048] Therefore, compared with the prior art, the drive mechanism 2 in this embodiment can be arranged lower, that is, the overall layout can be lower, the sink 3 has a larger sinking space, the Z-axis space is larger, the sink 3 can sink a larger space, and the Z-axis space can be freed up to install more accessories (such as ventilation fans and heating pads).

[0049] The rear end of the basin 3 has a fixed rod 31, and the connecting bracket 30 is located on the fixed rod 31 and fixedly connected to the fixed rod 31. A guide slider is provided at each end of the fixed rod 31, and the guide slider is slidably set at the slide groove 101 to ensure that the rear end of the basin 3 slides smoothly and without jamming.

[0050] A crossbar 11 is provided on the mounting base 1, and a motor mounting bracket 110 extends from the crossbar 11. The motor 20 is rotatably mounted on the motor mounting bracket 110 to avoid movement interference.

[0051] A notch 40 is provided on the front support 4. After the seat 3 has submerged, the notch 40 is positioned on the crossbar 11, preventing the front support 4 from hitting the crossbar 11 when the seat 3 is submerged, thus preventing the seat 3 from failing to submerge completely. The notch 40 is semi-circular, with a radius slightly larger than the radius of the crossbar 11.

[0052] The slide 101 in this embodiment includes a horizontal slide section 101A and a downward slide 101 section. The horizontal slide section 101A is horizontally arranged, and the downward slide section gradually extends downward from one end near the smooth section to the end away from the horizontal slide section 101A. Specifically, the downward slide 101 section is S-shaped to ensure that the tilt angle adjustment of the basin 3 is smooth and easy, and the downward movement of the basin 3 is also smooth and easy.

[0053] Furthermore, a sheet metal part 10 is fixedly connected to the inner side of the mounting base 1. A groove 101 is provided on the sheet metal part 10. By additionally providing the sheet metal part 10 to provide the groove 101, the strength of the mounting base 1 itself is not weakened. The groove 101 can be formed by bending the sheet metal during the manufacturing of the supporting sheet metal part 10, without the need for grooving. The sheet metal parts 10 are symmetrically arranged on the left and right sides of the mounting base 1. In addition, a guide slider is provided at the rear end of the basin 3. The guide slider is slidably arranged in the groove 101. By moving the guide slider along the groove 101, the rear end of the basin 3 slides more smoothly.

[0054] When the motor 20 in the drive mechanism 2 drives the telescopic rod 21 to retract, thereby driving the rear end of the seat basin 3 from the rear end of the slide groove 101 to the front end of the slide groove 101, during the initial sliding process, the rear end of the seat basin 3 gradually moves horizontally forward, while the front support 4 gradually rises upward, and the overall angle of the seat basin 3 gradually tilts backward, with the tilt angle gradually increasing. As the rear end of the seat basin 3 continues to slide, the front support 4 turns from upright to the front side, and the tilt angle of the seat basin 3 gradually decreases during the subsequent sliding until the seat basin 3 finally approaches horizontal, that is, the seat basin 3 completes the submersion action, at which point the front support 4 is also close to a horizontal state.

[0055] Example 2:

[0056] This embodiment of a car seat mainly includes:

[0057] The backrest and the front-mounted adjustable seat cushion of the motor 20 in Embodiment 1 are optionally rotatably mounted on the mounting base 1. For example, an angle adjuster is arranged on each side of the backrest, and the backrest is driven to rotate relative to each other by the angle adjuster.

[0058] The front-mounted adjustable seat cushion with motor 20 mainly includes: a mounting base 1, a basin 3, a front support 4, and a drive mechanism 2. The mounting base 1 has a sliding groove 101 near its rear end. The rear end of the basin 3 is mounted on the mounting base 1 and can slide along the sliding groove 101. The front end of the basin 3 is hinged to the front support 4, and the front support 4 is hinged to the mounting base 1. The drive mechanism 2 includes a motor 20 and a telescopic rod 21 connected to it. The motor 20 is rotatably mounted on the mounting base 1 and positioned near its front end. The end of the telescopic rod 21 away from the motor 20 is hinged to the rear end of the basin 3. In actual use, the motor 20 drives the telescopic rod 21 to retract, allowing the rear end of the basin 3 to slide forward along the sliding groove 101, changing the tilt angle of the basin 3 and causing it to lower.

[0059] In actual use, when the seat basin 3 is lowered, the backrest can be flipped forward and folded onto the seat basin 3, ensuring that the backrest can be flipped flat onto the seat basin 3. After flipping into place, the car seat is compact in size and occupies little space.

[0060] In this solution, the seat 3 of the front-mounted adjustable seat cushion of the motor 20 slides smoothly and has good stability. Moreover, its overall structure is simple, with few parts and low cost.

Claims

1. A front-mounted adjustable seat cushion for use in automobile seats, characterized in that, The utility model relates to a motor front type adjustable seat cushion, comprising: a mounting chassis, a seat pan, a front support and a driving mechanism; the mounting chassis is provided with a sliding groove near the rear end thereof; the rear end of the seat pan is arranged on the mounting chassis and can slide along the sliding groove; the front end of the seat pan is hinged to the front support, and the front support is hinged to the mounting chassis; the driving mechanism comprises a motor and a telescopic rod connected to the motor; the motor is rotatably arranged on the mounting chassis and is arranged near the front end of the mounting chassis; one end of the telescopic rod away from the motor is hinged to the rear end of the seat pan; the motor can make the rear end of the seat pan slide forward along the sliding groove, change the inclination angle of the seat pan and make the seat pan dive by driving the telescopic rod to retract.

2. The motorized adjustable seat cushion of claim 1, wherein, the rear end of the seat pan extends downward to form a connecting support, and one end of the telescopic rod away from the motor is hinged to the connecting support.

3. The motorized adjustable seat cushion of claim 2, wherein, the rear end of the seat pan is provided with a fixing rod, and the connecting support is arranged on the fixing rod and is fixedly connected to the fixing rod.

4. The motorized adjustable seat cushion of claim 1, wherein, the mounting chassis is provided with a cross bar, the cross bar extends a motor mounting support, and the motor is rotatably arranged on the motor mounting support.

5. The motorized adjustable seat cushion of claim 4, wherein, the front support is provided with a gap, and when the diving of the seat pan is completed, the gap is arranged on the cross bar.

6. The motorized adjustable seat cushion of claim 1, wherein, when the motor drives the telescopic rod to retract and makes the rear end of the seat pan slide to the front end of the sliding groove from the rear end of the sliding groove, the forward moving distance of the rear end of the seat pan is greater than or equal to 149mm, and the diving height of the seat pan is greater than or equal to 54mm.

7. The motorized adjustable seat cushion of claim 1, wherein, the number of the motor and the telescopic rod is one.

8. The motorized adjustable seat cushion of claim 1, wherein, the inner side of the mounting chassis is symmetrically provided with two metal plates, and the sliding groove is arranged on the metal plates; the sliding groove comprises a horizontal groove section and a lower sliding groove section in communication, and the lower sliding groove section is arranged in an S shape.

9. The motorized adjustable seat cushion of claim 1, wherein, the number of the front support is two, and the two front supports are symmetrically arranged on the two sides of the front end of the seat pan.

10. An automobile seat characterized by comprising: The utility model relates to a motor front type adjustable seat cushion, comprising: a backrest and the motor front type adjustable seat cushion according to any one of claims 1-9; when the seat pan dives, the backrest can be folded forward on the seat pan.

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