Novel sliding seat unit and seat angle adjusting mechanism adopting same

Abstract

The utility model provides a novel sliding seat unit and a seat angle adjusting mechanism adopting the sliding seat unit, the novel sliding seat unit comprises a hammer seat assembly and a lock hook installed on the hammer seat assembly, the hammer seat assembly comprises a stamping part and a plastic block installed on the inner side of the stamping part, the stamping part comprises a connecting plate, a first side plate and a second side plate, the first side plate and the second side plate are integrally formed with the connecting plate, the first side plate and the second side plate are each provided with a first through hole for a lead screw to penetrate through, and the first through holes in the first side plate and the second side plate are wrapped by the plastic block to form a lead screw hole in threaded connection with the lead screw. The connecting plate of the stamping part is provided with an arc bulge with the inner radius of R corresponding to the screw rod hole; compared with the prior art, the hammer seat assembly has the advantages that the hammer seat assembly can be designed to be short and flat, the height of the hammer seat assembly can be reduced, the weight of the hammer seat assembly is reduced, the hammer seat assembly can replace an existing product in terms of projects, and market competition is better.

Description

Technical Field

[0001] The utility model relates to the technical field of electric angle adjustment of rear seats of automobiles, in particular to a novel sliding seat unit and a seat angle adjustment mechanism adopting the sliding seat unit. Background Art

[0002] Car seats are important components in car interiors, providing comfort for passengers while protecting their safety. At present, rear seats on the market are usually fixed and cannot be adjusted. Commonly used rear seat backrest angle adjustment devices are generally manual, which is inconvenient to adjust, and their deflection angles are often not continuously adjustable, and cannot meet the personalized needs of passengers. Especially for vehicles traveling long distances, riding comfort needs to be improved urgently. In order to solve the above problems existing in the manual adjustment of the rear seat backrest angle, patent CN202323126270.0 discloses an electric angle adjustment mechanism for rear seats of automobiles. The patent can solve the problem that the rear seat backrest angle adjustment device generally adopts a manual method. However, the height of the hammer seat in the sliding seat unit in the patent is relatively high, and the high upper surface of the hammer seat will make the adaptability risky. For example, the space of the KX11 and NDLB projects cannot be arranged. At the same time, when matching with the existing projects, the local gap with the body cover is less than 7.5mm, so there is an installation risk, and there is a competitive disadvantage compared with the existing generation of products in new projects. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a novel slide unit and a seat angle adjustment mechanism using the slide unit, so as to solve the problem in the prior art that the high height of the hammer seat in the slide unit makes the adaptability risky.

[0004] In order to achieve the above purpose and other related purposes, the utility model provides the following technical solutions:

[0005] A novel slide unit comprises a hammer seat assembly and a locking hook mounted on the hammer seat assembly, wherein the hammer seat assembly comprises a stamping part and a plastic block mounted inside the stamping part, wherein the stamping part comprises a connecting plate, a first side plate and a second side plate integrally formed with the connecting plate, wherein the first side plate, the connecting plate and the second side plate form a U-shaped cavity, and the plastic block is filled in the U-shaped cavity and wraps the first side plate and the second side plate;

[0006] The top of the plastic block is fitted with the connecting plate on the stamping part, and the first side plate and the second side plate are both provided with a first through hole for the screw to pass through. The plastic block wraps the first through holes on the first side plate and the second side plate to form a screw hole threadedly connected to the screw, and a circular arc protrusion with an inner radius of R is provided on the connecting plate of the stamping part corresponding to the screw hole, and the major diameter of the thread of the screw hole is M, wherein RM / 2≤4.5mm. The first through hole in this technical solution can not only be used for the screw to pass through, but also plays a role in process avoidance, facilitating the stamping of the circular arc protrusion with an inner radius of R.

[0007] In one embodiment of the utility model, the first side panel and the second side panel are both provided with a second through hole for the guide rod to pass through, and the plastic block wraps the second through holes on the first side panel and the second side panel to form a guide rod hole slidably connected to the guide rod, and both ends of the guide rod hole are provided with annular protrusions for buffering impact contact. The annular protrusions in this technical solution can serve as a buffering contact between the impact stop point and the front and rear metal brackets, thereby avoiding abnormal noise.

[0008] In one embodiment of the utility model, the first side panel and the second side panel are both provided with a plurality of third through holes, and the third through holes are coated with plastic to form a plurality of cylindrical ribs to connect the first side panel and the second side panel with the plastic block.

[0009] In one embodiment of the utility model, the two ends of the lock hook are provided with a press riveting forming feature and a waist-shaped limiting feature sleeved on the press riveting forming feature, the connecting plate is provided with a fourth through hole corresponding to the press riveting forming feature, and the plastic block is provided with a mounting hole corresponding to the press riveting forming feature, and the height of the press riveting forming feature is less than the height of the arc protrusion. The fourth through hole in this technical solution is used for the press riveting forming feature to pass through, and the mounting hole is used to wrap the press riveting forming feature, so as to achieve the purpose of firmly mounting the lock hook on the hammer seat assembly.

[0010] In one embodiment of the utility model, the distance between the center of the locking hook and the center of the screw rod hole is L1, wherein L1≤18mm, the gap distance between the long side of the waist-shaped limiting feature and the outer rounded corner of the arc protrusion is L2, wherein L2>0, and the distance between the waist-shaped limiting feature and the first through hole is L3, wherein L3≥3mm.

[0011] A seat angle adjustment mechanism using the new type of slide unit is characterized by comprising a support unit, a screw unit and a guide rod unit installed on the support unit, a driving unit for driving the screw unit, and a damping unit installed in the support unit and located below the slide unit, the screw hole on the slide unit is threadedly connected to the screw unit, and the guide rod hole on the slide unit is slidably connected to the guide rod unit.

[0012] As described above, the utility model provides a new type of slide unit and a seat angle adjustment mechanism using the slide unit, which have the following beneficial effects: the utility model achieves a short and flat design of the hammer seat assembly by fitting the top of the plastic block with the connecting plate on the stamping part, and also provides an arc protrusion with an inner radius of R on the connecting plate of the stamping part corresponding to the screw hole, which not only reduces the height of the hammer seat assembly, but also reduces the weight of the hammer seat assembly. Existing products can be replaced in projects, making the market more competitive. The annular protrusion in the utility model can act as a buffer contact between the impact stop point and the front and rear metal brackets, thereby avoiding abnormal noise. The utility model can also reduce the injection molding requirements and conform to the industrial aesthetic design by setting the distance between the lock hook and the first through hole and the screw hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front perspective schematic diagram of a novel slide unit in the first embodiment of the utility model;

[0014] Figure 2 It is a bottom perspective schematic diagram of the novel slide unit in the first embodiment of the utility model;

[0015] Figure 3 is a front cross-sectional schematic diagram of a novel slide unit in the first embodiment of the utility model;

[0016] Figure 4 It is a three-dimensional schematic diagram of a lock hook in a new type slide unit in the first embodiment of the utility model;

[0017] Figure 5 It is a three-dimensional schematic diagram of a stamping part in a new slide unit in the first embodiment of the utility model;

[0018] Figure 6 It is a bottom-up stereoscopic schematic diagram of a plastic block in a novel slide unit in the first embodiment of the utility model;

[0019] Figure 7 It is a top perspective schematic diagram of a plastic block in a novel slide unit in the first embodiment of the utility model;

[0020] Figure 8 It is a side cross-sectional schematic diagram of a hammer seat assembly in a new slide seat unit in the first embodiment of the utility model;

[0021] Fig. 9 It is a bottom-view cross-sectional schematic diagram of a lock hook and a stamping part in a new slide unit in the first embodiment of the utility model;

[0022] Fig.10is a front perspective schematic diagram of a novel slide unit in a second embodiment of the utility model;

[0023] Fig.11 is a bottom perspective schematic diagram of a novel slide unit in a second embodiment of the utility model;

[0024] Fig.12 is a front cross-sectional schematic diagram of a new type slide unit in a second embodiment of the utility model;

[0025] Fig.13 is a three-dimensional schematic diagram of a lock hook in a new type slide unit in a second embodiment of the utility model;

[0026] Fig.14 It is a three-dimensional schematic diagram of a stamping part in a new slide unit in the second embodiment of the utility model;

[0027] Fig.15 is a bottom-up stereoscopic schematic diagram of a plastic block in a new type slide unit in a second embodiment of the utility model;

[0028] Fig.16 is a top perspective schematic diagram of a plastic block in a new type slide unit in a second embodiment of the utility model;

[0029] Fig.17 is a side cross-sectional schematic diagram of a hammer seat assembly in a new slide seat unit in a second embodiment of the utility model;

[0030] Fig.18 is a bottom-view cross-sectional schematic diagram of a lock hook and a stamping part in a new slide unit in a second embodiment of the utility model;

[0031] Fig.19 It is an overall three-dimensional schematic diagram of the seat angle adjustment mechanism in the third embodiment of the utility model;

[0032] Fig. 20 It is a disassembled three-dimensional schematic diagram of the seat angle adjustment mechanism in the third embodiment of the utility model.

[0033] Component number description

[0034] 1. Sliding seat unit; 2. Lock hook; 201. Riveting forming feature; 202. Waist-shaped limiting feature; 3. Stamping part; 301. Connecting plate; 302. First side plate; 303. Second side plate; 304. First through hole; 305. Second through hole; 306. Third through hole; 307. Fourth through hole; 308. Arc protrusion; 4. Plastic block; 401. Screw hole; 402. Guide rod hole; 403. Annular protrusion; 404. Mounting hole; 5. Support unit; 6. Screw unit; 7. Guide rod unit; 8. Drive unit; 9. Damping unit. DETAILED DESCRIPTION

[0035] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0036] See also Figures 1 to 9 The first embodiment of the utility model provides a novel slide unit, including a hammer seat assembly and a lock hook 2 installed on the hammer seat assembly, the hammer seat assembly includes a stamping part 3 and a plastic block 4 installed on the inner side of the stamping part 3, wherein the lock hook 2 is riveted with the stamping part 3 and is integrally formed with the plastic block 4 through an injection molding process, the stamping part 3 includes a connecting plate 301, a first side plate 302 and a second side plate 303 integrally formed with the connecting plate 301, the first side plate 302, the connecting plate 301 and the second side plate 303 constitute a U-shaped cavity, the plastic block 4 is filled in the U-shaped cavity and wraps the first side plate 302 and the second side plate 303, the top of the plastic block 4 is in contact with the connecting plate 301 on the stamping part 3, and the first side plate 302 and the second side plate 303 are integrally formed with the connecting plate 301. The plate 302 and the second side plate 303 are both provided with a first through hole 304 for the screw rod to pass through, wherein the first through hole 304 can not only be used for the screw rod to pass through, but also plays a role in process avoidance, facilitating the stamping of the arc protrusion 308 with an inner radius of R. The plastic block 4 wraps the first through hole 304 on the first side plate 302 and the second side plate 303 to form a screw rod hole 401 threadedly connected to the screw rod. The connecting plate 301 of the stamping part 3 is provided with an arc protrusion 308 with an inner radius of R corresponding to the screw rod hole 401. The major diameter of the thread of the screw rod hole 401 is M, wherein RM / 2≤4.5mm. The setting of the arc protrusion 308 can reduce the height of the hammer seat, thereby improving the adaptability of the slide unit.

[0037] The first side plate 302 and the second side plate 303 are both provided with a second through hole 305 for the guide rod to pass through. The plastic block 4 wraps the second through hole 305 on the first side plate 302 and the second side plate 303 to form a guide rod hole 402 that is slidably connected to the guide rod. Both ends of the guide rod hole 402 are provided with annular protrusions 403 for buffering impact contact, wherein the material of the annular protrusion 403 is plastic, and the annular protrusion 403 can serve as a buffering contact between the impact stop point and the front and rear metal brackets, thereby avoiding abnormal noise. The first side plate 302 and the second side plate 303 are also provided with a plurality of third through holes 306. After the third through holes 306 are plastic-wrapped, a plurality of cylindrical ribs are formed to connect the first side plate 302 and the second side plate 303 with the plastic block 4;

[0038] The two ends of the lock hook 2 are provided with a riveting forming feature 201 and a waist-shaped limiting feature 202 sleeved on the riveting forming feature 201, and the connecting plate 301 is provided with a fourth through hole 307 corresponding to the riveting forming feature 201, and the plastic block 4 is provided with a mounting hole 404 corresponding to the riveting forming feature 201, wherein the lock hook 2 passes through the fourth through hole 307 through the waist-shaped limiting feature 202 and the riveting forming feature 201 and is connected with the stamping part 3 and the plastic block 4, and the height of the riveting forming feature 201 is less than the height of the arc protrusion 308. Further, the fourth through hole 307 is used The press-riveted forming feature 201 passes through, and the press-riveted forming feature 201 is wrapped by the mounting hole 404 on the plastic block 4, thereby conforming to the industrial aesthetic design, and the purpose of firmly mounting the lock hook 2 on the hammer seat assembly can be achieved. The distance between the center of the lock hook 2 and the center of the screw hole 401 is L1, where L1≤18mm, and the gap distance between the waist-shaped long side of the waist-shaped limiting feature 202 and the outer rounded corner of the arc protrusion 308 is L2, where L2>0, and the distance between the waist-shaped limiting feature 202 and the first through hole 304 is L3, where L3≥3mm.

[0039] See also Figures 10 to 18 The second embodiment of the utility model also provides a new type of slide unit. The new type of slide unit has a similar structure to the new type of slide unit in the first embodiment, except that the connecting plate 301 of the stamping part 3 on the new type of slide unit 1 does not have a circular arc protrusion 308 with an inner radius R corresponding to the screw hole 401, but the top of the plastic block 4 is still in contact with the connecting plate 301 on the stamping part 3, so the hammer seat assembly in the new type of slide unit is also designed to be short and flat, thereby reducing the height of the overall hammer seat assembly, thereby ensuring the adaptability of the slide unit.

[0040] See also Fig.19 and Fig. 20 The third embodiment of the utility model provides a seat angle adjustment mechanism using the new type of slide unit, including a support unit 5, a screw unit 6 and a guide rod unit 7 installed on the support unit 5, a driving unit 8 for driving the screw unit 6 and a damping unit 9 installed in the support unit 5 and located below the slide unit 1, the screw hole 401 on the slide unit 1 is threadedly connected with the screw unit 6, and the guide rod hole 402 on the slide unit 1 is slidably connected with the guide rod unit 7, wherein the driving unit 8 provides power input for driving the screw unit 6 to rotate, the screw unit 6 cooperates with the slide unit 1 to convert the rotational motion of the screw into the linear motion of the slide unit 1 and push the slide unit 1 to extend and retract forward and backward, and the other end of the slide unit 1 is connected to the backrest lock on the rear seat, so that the seat can be driven to adjust the angle; the guide rod unit 7 cooperates with the slide unit 1 to provide guidance for the slide unit 1 and resist its lateral shaking, and the damping unit 9 provides friction to the hammer seat assembly to resist shaking along the axial direction of the screw.

[0041] In summary, the utility model makes the top of the plastic block 4 fit with the connecting plate 301 on the stamping part 3, and also provides an arc protrusion 308 with an inner radius R on the connecting plate 301 of the stamping part 3 corresponding to the screw hole 401, so as to achieve a low and flat design of the hammer seat assembly, which not only reduces the height of the hammer seat assembly, but also reduces the weight of the hammer seat assembly. It can replace existing products in projects, making it more competitive in the market. The annular protrusion 403 in the utility model can serve as a buffering contact between the impact stop point and the front and rear metal brackets, thereby avoiding abnormal noise. The utility model can also reduce the injection molding requirements and conform to the industrial aesthetic design by setting the distance between the lock hook 2 and the first through hole 304 and the screw hole 401, so as to facilitate promotion and use.

[0042] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A novel slide unit, comprising a hammer seat assembly and a locking hook (2) mounted on the hammer seat assembly, wherein the hammer seat assembly comprises a stamping part (3) and a plastic block (4) mounted inside the stamping part (3), wherein the stamping part (3) comprises a connecting plate (301), a first side plate (302) and a second side plate (303) integrally formed with the connecting plate (301), wherein the first side plate (302), the connecting plate (301) and the second side plate (303) form a U-shaped cavity, and the plastic block (4) is filled in the U-shaped cavity and wraps the first side plate (302) and the second side plate (303); Features: The top of the plastic block (4) is fitted with the connecting plate (301) on the stamping part (3); the first side plate (302) and the second side plate (303) are both provided with a first through hole (304) for the screw rod to pass through; the plastic block (4) wraps the first through hole (304) on the first side plate (302) and the second side plate (303) to form a screw rod hole (401) threadedly connected to the screw rod; the connecting plate (301) of the stamping part (3) is provided with an arc protrusion (308) with an inner radius of R corresponding to the screw rod hole (401); the major diameter of the thread of the screw rod hole (401) is M, wherein RM / 2≤4.5 mm.

2. A novel slide unit according to claim 1, characterized in that: The first side plate (302) and the second side plate (303) are both provided with a second through hole (305) for the guide rod to pass through, and the plastic block (4) wraps the second through hole (305) on the first side plate (302) and the second side plate (303) to form a guide rod hole (402) slidably connected to the guide rod, and both ends of the guide rod hole (402) are provided with annular protrusions (403) for buffering impact contact.

3. A novel slide unit according to claim 1, characterized in that: The first side plate (302) and the second side plate (303) are also provided with a plurality of third through holes (306), and the third through holes (306) are coated with plastic to form a plurality of cylindrical ribs to connect the first side plate (302) and the second side plate (303) with the plastic block (4).

4. A novel slide unit according to claim 1, characterized in that: The two ends of the locking hook (2) are provided with a press-riveted forming feature (201) and a waist-shaped limiting feature (202) sleeved on the press-riveted forming feature (201); the connecting plate (301) is provided with a fourth through hole (307) corresponding to the press-riveted forming feature (201); the plastic block (4) is provided with a mounting hole (404) corresponding to the press-riveted forming feature (201); and the height of the press-riveted forming feature (201) is less than the height of the arc protrusion (308).

5. A new type of slide unit (1) according to claim 4, characterized in that: The distance between the center of the locking hook (2) and the center of the screw hole (401) is L1, wherein L1≤18mm, the gap distance between the waist-shaped long side of the waist-shaped limiting feature (202) and the outer rounded corner of the arc protrusion (308) is L2, wherein L2>0, and the distance between the waist-shaped limiting feature (202) and the first through hole (304) is L3, wherein L3≥3mm.

6. A seat angle adjustment mechanism using the new sliding seat unit as claimed in any one of claims 1 to 5, characterized in that: The invention comprises a support unit (5), a screw rod unit (6) and a guide rod unit (7) mounted on the support unit (5), a driving unit (8) for driving the screw rod unit (6), and a damping unit (9) mounted in the support unit (5) and located below the slide unit (1); the screw rod hole (401) on the slide unit (1) is threadedly connected to the screw rod unit (6), and the guide rod hole (402) on the slide unit (1) is slidably connected to the guide rod unit (7).

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