Adjustable elastic supporting framework of automobile seat

Abstract

The utility model provides an automobile seat adjustable elastic supporting framework which comprises a framework body and an installation rod arranged on the framework body, an elastic supporting assembly is arranged on the installation rod and comprises two hanging steel wires and a pull rope, the upper ends of the hanging steel wires are connected to the installation rod, and the lower ends of the hanging steel wires are connected to the framework body. An adjusting assembly is arranged on the framework body, the two ends of the pull rope are both connected to the adjusting assembly, the adjusting assembly comprises a fixing plate and an adjusting knob, and a tightening structure and a reset structure are arranged in the adjusting knob; the pull rope is controlled to be tightened and tightened on the hanging steel wire through the adjusting mechanism, the reset mechanism can reset the pull rope after the pull rope is tightened, so that the pull rope is in a loose state on the hanging steel wire, and by adjusting the tightening or loosening of the pull rope, different requirements of passengers with different body types during sitting are adjusted and met; and the pull rope is light in weight, the state of the pull rope is manually controlled, and long-time use of the elastic supporting framework of the automobile seat can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to an adjustable elastic support skeleton for an automobile seat. Background Technique

[0002] The automobile seat is one of the main components of automobile parts. For an automobile seat, not only the driving requirements need to be met, but also the safety, comfort, beauty, etc. of the seat have become important factors for winning the market competition. When designing an automobile seat, in order to adapt to different occupants and meet the comfort requirements of passengers with different body postures and body types, the angle of the seat back is generally adjustable. To further improve the comfort of the seat, some seats also add the function of adjusting the angle of the neck and shoulder parts of the seat back. The elastic support skeleton of the automobile seat is an important factor to ensure the comfort of the automobile seat.

[0003] Most of the supports inside the traditional elastic support skeleton of the automobile seat are in a "field" - shaped mesh structure composed of elastic steel wires. The steel wires generate deformation under the pressure of passengers to achieve the purpose of shock absorption and comfort. Its ability of elastic deformation cannot be actively adjusted, and with the increase of the service life, the ability of elastic deformation will gradually decay, the support for passengers will weaken, and it cannot adapt to user groups with different body types. Content of the Utility Model

[0004] The utility model aims to provide an adjustable elastic support skeleton for an automobile seat, which can adjust the tension degree of the elastic support skeleton according to the body type, comfort requirements, driving habits, etc. of users, so as to improve the adaptability.

[0005] For this reason, the technical solution adopted by the utility model is: an adjustable elastic support skeleton for an automobile seat, including a skeleton body, an elastic support component is arranged on the skeleton body. The elastic support component includes two suspension steel wires symmetrically arranged along the central line position of the skeleton body and a pull rope wound around the two suspension steel wires in a cross - shape. The upper and lower ends of the suspension steel wires are respectively connected to the skeleton body. An adjusting component for adjusting the elastic support component is arranged on the skeleton body. Both ends of the pull rope are connected to the adjusting component. The adjusting component includes a mounting plate fixedly connected to the skeleton body and an adjusting knob arranged on the mounting plate for adjusting the tightening or resetting of the pull rope. A tightening structure for adjusting the tightening of the pull rope and a resetting structure for the resetting of the pull rope are arranged in the adjusting knob.

[0006] As a preference of the above - mentioned scheme, the tightening structure includes a ratchet wheel arranged in the adjusting knob and a rotating rod fixedly connected to the ratchet wheel. One end of the rotating rod passes through a fixing plate and is fixedly connected with a torsion cap, and the other end is rotationally connected to the adjusting knob. A pawl matching the ratchet wheel is also arranged in the adjusting knob, and both ends of the pull rope are fixedly connected to the ratchet wheel.

[0007] More preferably, the reset structure includes a fixed sleeve disposed in the adjustment knob and a sliding sleeve slidably connected in the fixed sleeve. One end of the sliding sleeve is connected to the rotating rod bearing. The sliding sleeve is provided with an installation groove for installing the bearing. At least one locking block is provided on the outer periphery of the sliding sleeve for restricting the rotation of the sliding sleeve in the fixed sleeve. The fixed sleeve is provided with a sliding groove for the locking block to slide up and down.

[0008] A further preferred embodiment is that the suspension wire is made of elastic steel wire bent into a wave shape, and a rope fixing sleeve for fixing the pull rope is provided on the crest of the wave on the side where the two suspension wires are close to each other.

[0009] More preferably, the pull rope fixing sleeve includes an "L"-shaped sleeve portion disposed at the crest of the suspension steel wire and an "L"-shaped mounting portion connected to the sleeve portion. The mounting portion and the sleeve portion are arranged opposite each other to form a rhombus. One end of the mounting portion is fixedly connected to the sleeve portion, and a gap is left between the other end and the sleeve portion for the pull rope to be inserted. The outer surface of the sleeve portion is smooth, and the pull rope fixing sleeve is injection molded.

[0010] More preferably, the pull rope is made of high-strength, elastic, and wear-resistant fiber.

[0011] More preferably, the frame body includes sheet metal frames symmetrically arranged on both sides and a "U"-shaped steel pipe connector welded to the upper end of the sheet metal frames. A mounting rod is arranged horizontally on the connector, and the upper end of the suspension wire is connected to the mounting rod.

[0012] More preferably, the upper and lower ends of the suspension wire are welded to the mounting rod and the frame body respectively by means of a fixing plate, wherein the fixing plate is formed by bending sheet metal.

[0013] The beneficial effects of this utility model are as follows: the tension of the pull rope is controlled by the adjustment mechanism, so that it is taut on the suspension wire. The adjustment knob is also equipped with a reset mechanism, which can reset the pull rope after it is tightened, so that the pull rope is in a slack state on the suspension wire. By adjusting the tension or slack of the pull rope, the different needs of passengers of different body types can be met. Moreover, the pull rope is lightweight and its state can be manually controlled, which can ensure the long-term use of the elastic support frame of the car seat. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the pull rope fixing sleeve in this utility model.

[0016] Figure 3 This is a schematic diagram showing the usage state of the adjustment knob in this utility model.

[0017] Figure 4 This is a schematic diagram of the internal structure of the adjustment knob when the rope is tightened in this utility model.

[0018] Figure 5 This is a schematic diagram of the internal structure of the adjustment knob in the pull-rope reset state of this utility model. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1-5 As shown, an adjustable elastic support frame for a car seat includes a frame body 7. An elastic support assembly is provided on the frame body 7. The elastic support assembly includes two suspension steel wires 1 symmetrically arranged along the center line of the frame body 7 and a pull rope 3 wrapped in a cross shape around the two suspension steel wires 1. The upper and lower ends of the suspension steel wires 1 are respectively connected to the frame body 7. An adjustment assembly for adjusting the elastic support assembly is provided on the frame body 7. Both ends of the pull rope 3 are connected to the adjustment assembly. The adjustment assembly includes a mounting plate 5 fixedly connected to the frame body 7 and an adjustment knob 6 provided on the mounting plate 5 for adjusting the tension or reset of the pull rope 3. The adjustment knob 6 is provided with a tightening structure for adjusting the tension of the pull rope 3 and a reset structure for resetting the pull rope 3.

[0021] The tightening structure includes a ratchet 601 housed within an adjustment knob 6 and a rotating rod 602 fixedly connected to the ratchet 601. One end of the rotating rod 602 passes through a fixed plate 4 and is fixedly connected to a knob cover 603, while the other end is rotatably connected to the adjustment knob 6. The adjustment knob 6 also contains a pawl 604 that matches the ratchet 601. Both ends of the pull rope 3 are fixedly connected to the ratchet 601. By fixing both ends of the pull rope 3 to the ratchet 601, the rotating rod 602 drives the ratchet 601 to rotate, and the pawl 604 then fixes the ratchet 601 in place. Tightening the pull rope 3 is achieved when the knob cover 603 is rotated.

[0022] The reset structure includes a fixed sleeve 605 disposed in the adjustment knob 6 and a sliding sleeve 606 slidably connected in the fixed sleeve 605. One end of the sliding sleeve 606 is connected to the rotating rod 602 bearing. The sliding sleeve 606 is provided with a mounting groove for mounting the bearing. At least one locking block 607 is provided on the outer periphery of the sliding sleeve 606 to restrict the rotation of the sliding sleeve 606 in the fixed sleeve 605. The fixed sleeve 605 is provided with a sliding groove 608 for the locking block 607 to slide up and down. By connecting the tightening structure to the bearing of the sliding sleeve 606, and with the bearing installed inside the sliding sleeve 606, the sliding sleeve 606 is limited by the sliding groove 608 inside the fixed sleeve 605 and the locking block 607 on the sliding sleeve 606, preventing the sliding sleeve 606 from rotating inside the fixed sleeve 605 when the tightening structure rotates. The sliding sleeve 606 slides back and forth inside the fixed sleeve 605, thereby causing the tightening structure to slide back and forth inside the adjusting knob 6. When it is necessary to loosen the pull rope 3 to put it in a relaxed state, pull the twist cover 603 backward, so that the ratchet teeth of the ratchet 601 disengage from the pawl 604. When the pawl 604 can no longer restrain the ratchet 601, the two ends of the pull rope 3 pull the ratchet 601 to reset, and the pull rope 3 enters a relaxed state.

[0023] The suspension wire 1 is made of elastic steel wire bent into a wave shape. A rope fixing sleeve 2 for fixing the pull rope 3 is set on the crest of the wave on the side where the two suspension wires 1 are close to each other. Making the suspension wire 1 into a wave shape increases the strength of the suspension wire 1, and setting the rope fixing sleeve 2 on the crest of the wave on the side where it is close to each other makes it easier to install the pull rope 3 and wrap it around the suspension wire 1.

[0024] The pull rope fixing sleeve 2 includes an "L"-shaped sleeve portion 201 located at the crest of the suspension steel wire 1 and an "L"-shaped mounting portion 202 connected to the sleeve portion 201. The mounting portion 202 and the sleeve portion 201 are arranged opposite each other to form a rhombus. One end of the mounting portion 202 is fixedly connected to the sleeve portion 201, and a gap is left between the other end and the sleeve portion 201 for the pull rope 3 to be inserted. The outer surface of the sleeve portion 201 is smooth. The pull rope fixing sleeve 2 is injection molded. The smooth outer surface of the sleeve portion 201 and the injection molding of the pull rope fixing sleeve 2 can reduce the friction force on the pull rope 3 when the pull rope 3 is tightened or reset. The sleeve portion 201 is made of smooth high-strength plastic or metal. The pull rope fixing sleeve 2 is injection molded by bending the suspension steel wire 1 into a wave shape and placing it into the mold. The one-piece injection molding ensures a firm connection between the pull rope fixing sleeve 2 and the suspension steel wire 1.

[0025] The pull rope 3 is made of high-strength, elastic, and wear-resistant fiber. During installation, the pull rope 3 can be inserted into the gap left on the pull rope fixing sleeve 2 by external force due to its own elasticity. When the pull rope 3 is wrapped around the suspension steel wire 1, it will not fall off the pull rope fixing sleeve 2 due to its own weight.

[0026] The frame body includes sheet metal frames symmetrically arranged on both sides and a "U"-shaped steel pipe connector welded to the upper end of the sheet metal frames. A mounting rod 8 is arranged horizontally on the connector, and the upper end of the suspension wire 1 is connected to the mounting rod 8.

[0027] The upper and lower ends of the suspension wire 1 are welded to the mounting rod 8 and the frame body 7 respectively via a fixing plate 4. The fixing plate 4 is formed by bending sheet metal. The sheet metal bending ensures the strength of the fixing plate 4 itself, and then the suspension wire 1 is welded to the fixing plate 4 to ensure the strength of the suspension wire 1.

[0028] Adjustable elastic support frames can be used on seat backs or seat cushions to ensure seating comfort.

[0029] The tension of the pull rope 3 is controlled by the adjustment mechanism, thus keeping it taut on the suspension wire 1. The adjustment knob 6 also has a reset mechanism, which can reset the pull rope 3 after it is tightened, so that the pull rope 3 is in a slack state on the suspension wire 1. By adjusting the tension or slack of the pull rope 3, the different needs of passengers of different body types can be met. Moreover, the pull rope 3 is lightweight and its state can be manually controlled, which can ensure the long-term use of the car seat's elastic support frame.

[0030] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An adjustable elastic support frame for a car seat, comprising a frame body (7), characterized in that: The frame body (7) is provided with an elastic support assembly. The elastic support assembly includes two suspension wires (1) symmetrically arranged along the center line of the frame body (7) and a pull rope (3) wrapped in a cross shape around the two suspension wires (1). The upper and lower ends of the suspension wires (1) are respectively connected to the frame body (7). The frame body (7) is provided with an adjustment assembly for adjusting the elastic support assembly. Both ends of the pull rope (3) are connected to the adjustment assembly. The adjustment assembly includes a mounting plate (5) fixedly connected to the frame body (7) and an adjustment knob (6) on the mounting plate (5) for adjusting the tension or reset of the pull rope (3). The adjustment knob (6) is provided with a tightening structure for adjusting the tension of the pull rope (3) and a reset structure for resetting the pull rope (3).

2. The adjustable elastic support frame for a car seat according to claim 1, characterized in that: The tightening structure includes a ratchet (601) disposed in the adjustment knob (6) and a rotating rod (602) fixedly connected to the ratchet (601). One end of the rotating rod (602) passes through the fixing plate (4) and is fixedly connected to a twist cap (603), and the other end is rotatably connected to the adjustment knob (6). The adjustment knob (6) is also provided with a pawl (604) matching the ratchet (601). Both ends of the pull rope (3) are fixedly connected to the ratchet (601).

3. The adjustable elastic support frame for a car seat according to claim 2, characterized in that: The reset structure includes a fixed sleeve (605) disposed in the adjustment knob (6) and a sliding sleeve (606) slidably connected in the fixed sleeve (605). One end of the sliding sleeve (606) is connected to the rotating rod (602) bearing. The sliding sleeve (606) is provided with a mounting groove for mounting the bearing. At least one locking block (607) is provided on the outer periphery of the sliding sleeve (606) for restricting the rotation of the sliding sleeve (606) in the fixed sleeve (605). The fixed sleeve (605) is provided with a sliding groove (608) for the locking block (607) to slide up and down.

4. The adjustable elastic support frame for a car seat according to claim 1, characterized in that: The suspension wire (1) is made of elastic steel wire bent into a wave shape, and a rope fixing sleeve (2) for fixing the pull rope (3) is provided on the crest of the wave on the side where the two suspension wires (1) are close to each other.

5. The adjustable elastic support frame for a car seat according to claim 4, characterized in that: The pull rope fixing sleeve (2) includes an "L"-shaped sleeve part (201) set at the crest of the suspension steel wire (1) and an "L"-shaped mounting part (202) connected to the sleeve part (201). The mounting part (202) and the sleeve part (201) are arranged opposite each other to form a rhombus. One end of the mounting part (202) is fixedly connected to the sleeve part (201), and a gap is left between the other end and the sleeve part (201) for the pull rope (3) to be squeezed in. The outer surface of the sleeve part (201) is smooth. The pull rope fixing sleeve (2) is injection molded.

6. The adjustable elastic support frame for a car seat according to claim 1, characterized in that: The pull rope (3) is made of high-strength elastic wear-resistant fiber.

7. The adjustable elastic support frame for a car seat according to claim 1, characterized in that: The frame body includes sheet metal frames symmetrically arranged on both sides and a "U"-shaped steel pipe connector welded to the upper end of the sheet metal frames. An installation rod (8) is arranged horizontally on the connector, and the upper end of the suspension wire (1) is connected to the installation rod (8).

8. The adjustable elastic support frame for a car seat according to claim 1, characterized in that: The upper and lower ends of the suspension wire (1) are welded to the mounting rod (8) and the frame body (7) respectively by fixing plate (4), and the fixing plate (4) is formed by bending sheet metal.

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