Adaptive adjustment of seat dynamic side wing devices

Abstract

This utility model relates to an adaptive adjustable seat dynamic side wing device, including a seat frame, symmetrically installed side wings, cables, pressure blocks, and a reset component. The driver and passengers, relying on their own weight, naturally compress the pressure blocks, causing them to move along the sliding guide cavity of the guide frame. Simultaneously, they pull the cables, adjusting the angle of the side wings. The reset component then resets the pressure blocks. By replacing the non-linear deformation of the suspension springs with linear movement of the cables, fatigue failure is avoided, achieving high sensitivity and accuracy in side wing angle adjustment, thus improving seat comfort and reliability.

Description

Technical Field

[0001] This utility model specifically relates to an adaptive adjustable seat dynamic side wing device. Background Technology

[0002] Some car seats have side wings on both sides, and to better meet market demands, these side wings are designed with adjustable angles. For example, document CN114940111A discloses an "adaptive adjustable seat side wing structure," which mainly consists of a seat frame, side wings, a lateral suspension spring assembly, and a longitudinal suspension spring assembly. The lateral suspension spring assembly comprises multiple lateral suspension springs and a first connecting block, with the two ends of the lateral suspension springs connected to the support rods of the left and right side wings, respectively. The side wing adjustment method of this prior art is as follows: the weight of the passenger directly presses down on the lateral suspension spring assembly, causing the "lateral suspension springs" to deform under pressure and generate driving force, directly driving the left and right side wings to rotate. The rotation axis of the side wings is directly connected to the seat frame, and the two ends of the lateral suspension springs are connected to the support rods of the side wings, driving the side wings to rotate through tension.

[0003] Therefore, it can be seen that the existing technology mainly relies on the elastic deformation of the lateral suspension spring to adjust the side wing angle. However, "the relationship between the suspension spring and the force is not linear," so the adjustment sensitivity is poor. Secondly, the suspension spring needs to repeatedly switch between the states of "compression deformation (sitting / turning) → returning to the original state (leaving)," which accelerates the fatigue of the suspension spring and reduces the elastic restoring force of the suspension spring, resulting in the side wing being unable to be adjusted or unable to fully return to its original position after adjustment. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an adaptive adjustment seat dynamic side wing device to address the shortcomings of the prior art. Through the transmission of pressure blocks and cables, it can achieve accurate adaptive adjustment of the rotation angle of the seat side wing, with high adjustment sensitivity and long-term stable and reliable side wing angle adjustment function.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adaptive adjustable seat dynamic side wing device, comprising a seat frame and two sets of side wings symmetrically installed on both sides of the seat frame, characterized in that: the side wings are linked to a cable, and the end of the cable away from the side wing is linked to a pressure block that can reciprocate toward the seat frame, and the pressure block is linked to a reset member.

[0006] Using the above technical solution, when the driver and passengers sit on the seat, they automatically compress the pressure block. The pressure block moves relative to the seat frame, thereby synchronously pulling the cable. The cable moves, thus adjusting the side wing angle. In this application, the cable transmission can accurately control the rotation angle of the side wing. The relationship between the pressure exerted by the driver and passengers on the pressure block and the positional movement of the pressure block and the positional movement of the tension spring is linear. Compared to the nonlinear deformation of the suspension spring, this allows for more sensitive adjustment of the side wing angle based on changes in the posture of the passengers, improving the accuracy and sensitivity of the adjustment. In this solution, the cable moves as a whole, rather than undergoing the elastic deformation of the suspension spring in the prior art. Therefore, there is no fatigue variation, and it will not fail quickly due to frequent deformation like the suspension spring, thus achieving the "side wing angle adjustment function" stably and reliably.

[0007] The aforementioned adaptive adjustable seat dynamic side wing device can be further configured as follows: a guide frame is installed in the middle of the seat frame, a sliding guide cavity is provided in the middle of the guide frame, the pressure block and the reset member are both installed in the sliding guide cavity, one end of the reset member abuts against the pressure block and the other end abuts against the inner end face of the sliding guide cavity.

[0008] Using the above technical solution, the guide frame is installed in the middle of the seat frame, providing a stable installation base and support structure for the entire dynamic side wing adjustment device. When the driver and passenger sit in the seat, their back naturally rests on the seat, which compresses the pressure block. The pressure block then slides linearly along the axis of the sliding guide cavity, thereby pulling the cable and simultaneously compressing the reset component. Once the passenger leaves the seat or their back leaves the seat, the reset component automatically helps the pressure block return to its original position.

[0009] The aforementioned adaptive adjustable seat dynamic side wing device can be further configured as follows: the guide frame is symmetrically provided with strip guide grooves on both sides, each set of strip guide grooves is connected to the sliding guide cavity, the pressure block is provided with a set of connecting blocks corresponding to each set of strip guide grooves, the connecting blocks are inserted into the strip guide grooves, and the cable is linked with the connecting blocks; the end of the connecting block away from the pressure block extends out of the strip guide groove, and the end of the connecting block away from the pressure block is provided with a stop block extending toward the side of the connecting block.

[0010] Using the above technical solution, the connecting block is used to link the cable, and the strip guide groove provides motion guidance for the connecting block, ensuring that the cable can move smoothly in a predetermined direction when pulled by the pressure block, thereby ensuring the stability of the seat side wing adjustment action. The stop block limits the connecting block, preventing the connecting block (i.e., the pressure block) from swaying laterally in the strip guide groove.

[0011] The aforementioned adaptive adjustable seat dynamic side wing device can be further configured as follows: the guide frame is provided with a cover plate corresponding to the opening end of the sliding guide cavity, the cover plate has a clearance hole penetrating through the middle, the pressure block includes a sliding body distributed in the sliding guide cavity and a pushing body that slides with the clearance hole, the distance between the two sides of the sliding body is wider than the inner diameter of the clearance hole, the cover plate is provided with a number of first locking holes around its perimeter, the guide frame is provided with a set of second locking holes corresponding to each set of first locking holes, and the first locking holes and the second locking holes are connected by a first fastener.

[0012] Using the above technical solution, the cover plate and guide frame are detachably connected via fasteners and two set holes, facilitating the installation of the pressure block and reset component. Furthermore, the pusher extends out of the clearance hole to withstand pressure from the driver and passengers, thereby synchronously driving the sliding body to move within the sliding guide cavity, ultimately adjusting the angle of the side wing. The purpose of "the distance between the two sides of the sliding body being wider than the inner diameter of the clearance hole" is that when the sliding body resets, the cover plate will limit the sliding body, preventing it from excessively extending out of the sliding guide cavity, facilitating subsequent side wing adjustments. The fasteners can be standard parts such as screws and bolts, which are convenient to procure and have good interchangeability, facilitating subsequent maintenance and replacement.

[0013] The aforementioned adaptive adjustable seat dynamic side wing device can be further configured such that: the reset member is a spring, the sliding body is provided with a set of insertion holes for each set of springs, one end of the spring is inserted into the insertion hole and pressed against the inner end of the insertion hole, and the other end is pressed against the inner end surface of the sliding guide cavity.

[0014] By adopting the above technical solution, the insertion hole guides the extension and retraction of the spring, preventing the spring from deflecting to the left or right.

[0015] The aforementioned adaptive adjustable seat dynamic side wing device can be further configured as follows: the guide frame is provided with two sets of cable guide structures symmetrically distributed on both sides of the slide guide cavity. The cable guide structure includes two sets of traction blocks distributed on the side of the guide frame, and a traction groove is provided between the two sets of traction blocks. The cable guide structure also includes at least one set of hooks distributed between the traction groove and the slide guide cavity. The cable passes through the traction groove and at least one set of hooks in sequence until it is linked with the pressure block.

[0016] By adopting the above technical solution, the movement of the cable is guided, preventing the cable from deflecting left or right when pulled by the pressure block, thereby further improving the sensitivity of the side adjustment.

[0017] The aforementioned adaptive adjustable seat dynamic side wing device can be further configured as follows: the seat frame is fixed with a snap-fit ​​seat and a sliding sleeve distributed between the side wing and the guide frame. The snap-fit ​​seat is provided with an opening groove, the outer periphery of the sliding sleeve is provided with a snap-fit ​​part, the snap-fit ​​part is embedded in the opening groove, the sliding sleeve has a through hole, and the cable passes through the through hole.

[0018] By adopting the above technical solution, a locking seat and a sliding sleeve are added to further improve the movement stability of the cable, thereby ensuring that the movement path of the cable does not change and stably driving the side wings to adjust their angle. An opening groove is provided on the locking seat to facilitate the installation of the sliding sleeve. The inner diameter of the locking part is smaller than the overall inner diameter of the sliding sleeve. When the locking part is inserted into the opening groove, both ends of the locking part naturally abut against the upper and lower end faces of the locking seat, thus preventing the sliding sleeve from moving up and down.

[0019] The aforementioned adaptive adjustable seat dynamic side wing device can be further configured as follows: the side wing includes a mother plate fixed to the seat frame and a sub-plate hinged to the mother plate. A tension spring is linked to the side of the sub-plate away from the mother plate. The end of the tension spring away from the sub-plate is linked to the mother plate or the seat frame. A swing arm is linked to the side of the sub-plate close to the mother plate. The end of the swing arm away from the sub-plate is linked to a cable.

[0020] Using the above technical solution, the cable pulls the swing arm, which in turn drives the sub-plate to rotate around the hinge point between the sub-plate and the mother plate, thereby adjusting the angle of the side wing. During this process, the sub-plate stretches the tension spring. When the cable returns to its original position, the tension spring automatically drives the sub-plate to return to its original position.

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the assembly of the pressure block and guide frame according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the pressing block according to an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram showing the position of the cable guide structure in an embodiment of this utility model;

[0026] Figure 5 for Figure 4 Enlarged view of a portion of point A in the middle;

[0027] Figure 6 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 2 ;

[0028] Figure 7 for Figure 6 Enlarged view of a portion of point B in the middle;

[0029] Figure 8 for Figure 6 A magnified view of a portion of point C in the middle.

[0030] Label annotations: 1. Seat frame; 2. Side wing, 201 main plate, 202 sub-plate, 203 tension spring, 204 swing arm; 3. Cable; 4. Pressure block, 401 connecting block, 402 stop block, 403 sliding body, 404 pushing body, 405 insertion hole; 5. Spring; 6. Guide frame, 601 strip guide groove, 602 sliding guide cavity, 603 hook, 604 traction block, 605 traction slide; 7. Cover plate, 701 clearance hole; 8. Snap-fit ​​seat, 801 opening groove; 9. Sleeve, 901 snap-fit ​​part, 902 round hole. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1 to 8 The adaptive adjustable seat dynamic side wing device shown includes a seat frame 1, two sets of side wings 2 symmetrically installed on both sides of the seat frame 1, the side wings 2 are linked to a cable 3, the end of the cable 3 away from the side wings 2 is linked to a pressure block 4 that can reciprocate toward the seat frame 1, and the pressure block 4 is linked to a spring 5.

[0033] A guide frame 6 is installed in the middle of the seat frame 1. A sliding guide cavity 602 is located in the middle of the guide frame 6. A pressure block 4 and a spring 5 are both installed in the sliding guide cavity 602. One end of the spring 5 abuts against the pressure block 4, and the other end abuts against the inner end face of the sliding guide cavity 602. The guide frame 6, installed in the middle of the seat frame 1, provides a stable mounting base and support structure for the entire dynamic side wing 2 adjustment device. When the driver or passenger sits in the seat, their back naturally rests on the seat, compressing the pressure block 4. The pressure block 4 then slides linearly along the axis of the sliding guide cavity 602, thereby pulling the cable 3 and simultaneously compressing the spring 5. Once the passenger leaves the seat or their back leaves the seat, the spring 5 automatically helps the pressure block 4 return to its original position.

[0034] The guide frame 6 has symmetrical strip guide grooves 601 on both sides. Each set of strip guide grooves 601 is connected to the sliding guide cavity 602. The pressure block 4 has a set of connecting blocks 401 corresponding to each set of strip guide grooves 601. The connecting blocks 401 are inserted into the strip guide grooves 601, and the cable 3 is linked with the connecting blocks 401. The end of the connecting block 401 away from the pressure block 4 extends out of the strip guide groove 601, and the end of the connecting block 401 away from the pressure block 4 has a stop block 402 extending towards the side of the connecting block 401. The connecting block 401 is used to link the cable 3. The strip guide groove 601 provides motion guidance for the connecting block 401, ensuring that the cable 3 can move smoothly in a predetermined direction when pulled by the pressure block 4, thereby ensuring the stability of the adjustment action of the seat side wing 2. The stop block 402 limits the connecting block 401 to prevent the connecting block 401 (i.e., the pressure block 4) from swaying laterally in the strip guide groove 601.

[0035] The guide frame 6 has a cover plate 7 corresponding to the opening end of the sliding guide cavity 602. A clearance hole 701 passes through the center of the cover plate 7. The pressure block 4 includes a sliding body 403 distributed within the sliding guide cavity 602 and a pushing body 404 that slides with the clearance hole 701. The distance between the two sides of the sliding body 403 is wider than the inner diameter of the clearance hole 701. The cover plate 7 has four sets of first locking holes around its perimeter. The guide frame 6 has a set of second locking holes corresponding to each set of first locking holes. The first locking holes and the second locking holes are connected by a first fastener. The cover plate 7 and the guide frame 6 are detachably connected by fasteners and two locking holes, facilitating the installation of the pressure block 4 and the spring 5. Furthermore, the pushing body 404 extends out of the clearance hole 701 to withstand pressure from the driver and passengers, thereby synchronously driving the sliding body 403 to move within the sliding guide cavity 602, and ultimately rotating to adjust the angle of the side wing 2. The purpose of "the distance between the two sides of the sliding body 403 being wider than the inner diameter of the clearance hole 701" is that when the sliding body 403 is reset, the cover plate 7 will limit the sliding body 403, preventing the sliding body 403 from excessively extending out of the sliding guide cavity 602, thus facilitating the next adjustment of the side wing 2. The fasteners can be standard parts such as screws and bolts, which are convenient to purchase and have good interchangeability, facilitating subsequent maintenance and replacement.

[0036] Each sliding body 403 has a set of insertion holes 405 corresponding to each set of springs 5. One end of the spring 5 is inserted into the insertion hole 405 and pressed against the inner end of the insertion hole 405, while the other end is pressed against the inner end face of the sliding guide cavity 602. The insertion hole 405 guides the extension and retraction movement of the spring 5, preventing the spring 5 from deflecting to the left or right.

[0037] The guide frame 6 is equipped with two sets of cable guide structures symmetrically distributed on both sides of the guide cavity of the slide. The cable guide structure includes two sets of traction blocks 604 distributed on the sides of the guide frame 6, and a traction groove 605 between the two sets of traction blocks 604. The cable guide structure also includes two sets of hooks 603 distributed between the traction groove 605 and the guide cavity of the slide. The cable 3 passes through the traction groove 605 and the two sets of hooks 603 in sequence until it is linked with the pressure block 4. This guides the movement of the cable 3 and prevents the cable 3 from deviating to the left or right when pulled by the pressure block 4, thereby further improving the sensitivity of the adjustment of the side wing 2.

[0038] The seat frame 1 is fixed with a locking seat 8 and a sliding sleeve 9 distributed between the side wings 2 and the guide frame 6. The locking seat 8 has an opening groove 801, and the outer periphery of the sliding sleeve 9 has a locking part 901 that fits into the opening groove 801. A circular hole 902 passes through the sliding sleeve 9, and the cable 3 passes through the circular hole 902. The addition of the locking seat 8 and the sliding sleeve 9 further improves the movement stability of the cable 3, thereby ensuring that the movement path of the cable 3 does not change and stably drives the side wings 2 to adjust their angle. The locking seat 8 has an opening groove 801 to facilitate the installation of the sliding sleeve 9. The inner diameter of the locking part 901 is smaller than the overall inner diameter of the sliding sleeve 9. When the locking part 901 is inserted into the opening groove 801, the two ends of the locking part 901 naturally abut against the upper and lower end faces of the locking seat 8, thereby preventing the sliding sleeve 9 from moving up and down.

[0039] The side wing 2 includes a main plate 201 fixed to the seat frame 1 and a sub-plate 202 hinged to the main plate 201. A tension spring 203 is linked to the side of the sub-plate 202 away from the main plate 201, and the end of the tension spring 203 away from the sub-plate 202 is linked to the main plate 201. A swing arm 204 is linked to the side of the sub-plate 202 closer to the main plate 201, and the end of the swing arm 204 away from the sub-plate 202 is linked to a cable 3. The cable 3 pulls the swing arm 204, which in turn causes the sub-plate 202 to rotate around the hinge point between the sub-plate 202 and the main plate 201, thus adjusting the angle of the side wing 2. During this process, the sub-plate 202 stretches the tension spring 203. When the cable 3 returns to its original position, the tension spring 203 automatically causes the sub-plate 202 to return to its original position.

[0040] The working principle of this embodiment is as follows: When the driver or passenger sits on the seat and leans back against the seat back, they naturally compress the pushing body 404 in the pressure block 4. The pushing body 404 simultaneously drives the sliding body 403 to move within the sliding guide cavity 602. The sliding body 403 simultaneously compresses the spring 5. At the same time, the connecting blocks 401 connected to both sides of the sliding body 403 move synchronously with the sliding body 403. The connecting blocks 401 move along the strip guide groove 601, and the cable 3 is driven by the connecting blocks 401 to move. Thus, the cable 3 drives the swing arm 204, and the swing arm 204 drives the sub-plate 202 to rotate around the hinge point between the sub-plate 202 and the main plate 201, that is, the angle of the side wing 2 is adaptively adjusted. When people leave the seat or their backs leave the seat back, the pressure block 4 resets under the action of the spring 5, and the sub-plate 202 resets under the action of the tension spring 203, so as to facilitate the next adjustment of the side wing 2.

[0041] The adaptive adjustable seat dynamic side wing device designed in this embodiment uses cable 3 to accurately control the rotation angle of side wing 2. The relationship between the pressure exerted by the driver / passenger on pressure block 4 and the positional movement of pressure block 4, as well as the positional movement of tension spring 203, is linear. Compared to the non-linear deformation of a suspension spring, this device can more sensitively adjust the side wing 2 angle according to changes in the passenger's posture, improving the accuracy and sensitivity of the adjustment. In this embodiment, cable 3 moves as a whole, rather than undergoing the elastic deformation of a suspension spring as in existing technologies. Therefore, there is no fatigue variation, and unlike suspension springs, it will not quickly fail due to frequent deformation, thus ensuring a stable and reliable "side wing 2 angle adjustment function."

Claims

1. An adaptive dynamic side wing device for a seat, comprising a seat frame and two sets of symmetrical side wings mounted on both sides of the seat frame, characterized in that: The side wing is connected to a cable, and the end of the cable away from the side wing is connected to a pressure block that can reciprocate toward the seat frame. The pressure block is connected to a reset component.

2. The adaptive adjustable seat dynamic side wing device according to claim 1, characterized in that: A guide frame is installed in the middle of the seat frame, and a sliding guide cavity is provided in the middle of the guide frame. The pressure block and the reset member are both installed in the sliding guide cavity. One end of the reset member abuts against the pressure block and the other end abuts against the inner end face of the sliding guide cavity.

3. The adaptive adjustable seat dynamic side wing device according to claim 2, characterized in that: The guide frame is symmetrically provided with strip guide grooves on both sides. Each set of strip guide grooves is connected to the sliding guide cavity. The pressure block is provided with a set of connecting blocks corresponding to each set of strip guide grooves. The connecting blocks are inserted into the strip guide grooves. The cable is linked with the connecting blocks. The end of the connecting block away from the pressure block extends out of the strip guide groove, and the end of the connecting block away from the pressure block is provided with a stop block extending toward the side of the connecting block.

4. The adaptive adjustable seat dynamic side wing device according to claim 2, characterized in that: The guide frame is provided with a cover plate corresponding to the opening end of the sliding guide cavity. A clearance hole is passed through the middle of the cover plate. The pressure block includes a sliding body distributed in the sliding guide cavity and a pushing body that slides with the clearance hole. The distance between the two sides of the sliding body is wider than the inner diameter of the clearance hole. Several sets of first locking holes are provided around the cover plate. The guide frame is provided with a set of second locking holes for each set of first locking holes. The first locking holes and the second locking holes are connected by a first fastener.

5. The adaptive adjustable seat dynamic side wing device according to claim 4, characterized in that: The reset component is a spring, and the sliding body is provided with a set of insertion holes for each set of springs. One end of the spring is inserted into the insertion hole and pressed against the inner end of the insertion hole, and the other end is pressed against the inner end surface of the sliding guide cavity.

6. The adaptive adjustable seat dynamic side wing device according to any one of claims 2 to 5, characterized in that: The guide frame is provided with two sets of cable guide structures symmetrically distributed on both sides of the slide guide cavity. The cable guide structure includes two sets of traction blocks distributed on the side of the guide frame, and a traction groove is provided between the two sets of traction blocks. The cable guide structure also includes at least one set of hooks distributed between the traction groove and the slide guide cavity. The cable passes through the traction groove and at least one set of hooks in sequence until it is linked with the pressure block.

7. The adaptive adjustable seat dynamic side wing device according to any one of claims 2 to 5, characterized in that: The seat frame is fixed with a snap-fit ​​seat and a sliding sleeve distributed between the side wings and the guide frame. The snap-fit ​​seat has an opening groove, and the outer periphery of the sliding sleeve has a snap-fit ​​part. The snap-fit ​​part is embedded in the opening groove, and a round hole is passed through the sliding sleeve. The cable passes through the round hole.

8. The adaptive adjustable seat dynamic side wing device according to any one of claims 1 to 5, characterized in that: The side wing includes a main plate fixed to the seat frame and a sub-plate hinged to the main plate. A tension spring is linked to the side of the sub-plate away from the main plate. The end of the tension spring away from the sub-plate is linked to the main plate or the seat frame. A swing arm is linked to the side of the sub-plate close to the main plate. The end of the swing arm away from the sub-plate is linked to a cable.

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