CN210707027U - Bidirectional waist adjustable supporting system of automobile seat - Google Patents
Bidirectional waist adjustable supporting system of automobile seat Download PDFInfo
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- CN210707027U CN210707027U CN201921468584.XU CN201921468584U CN210707027U CN 210707027 U CN210707027 U CN 210707027U CN 201921468584 U CN201921468584 U CN 201921468584U CN 210707027 U CN210707027 U CN 210707027U
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Abstract
The utility model discloses a two adjustable braced system of waist of car seat, include: the backrest framework steel wire assembly, the backrest support plate, the upper guide bridge and the front-back adjusting mechanism assembly are arranged on the backrest framework steel wire assembly; it still includes: the hinged support assembly comprises a first support bar, a second support bar and a connecting plate, and the first end of the first support bar is hinged with the upper guide bridge; the second end of the first supporting strip is hinged with the connecting plate; the first end of the second supporting strip is hinged with the connecting plate, and the second end of the second supporting strip is hinged with the fixed end of the front-back adjusting mechanism; the connecting plate is connected with the backrest support plate in a sliding support mode. The utility model discloses avoided the bending force in the use, only born pressure, because of can effectually avoiding this bending fatigue fracture, can reduce this raw and other materials cost under the same life-span by about 5-10% simultaneously, and the adjustment stroke can reach more than 41mm around the product.
Description
Technical Field
The utility model relates to the technical field of seats, in particular to two to adjustable braced system of waist of car seat.
Background
With the social development and the increasing living standard of the public, the automobiles are quite generalized, but the requirements of the public on the driving comfort of the automobiles are higher and higher. The comfort of the automobile seat directly influences the comfort of drivers and passengers to a great extent.
According to ergonomic principles, the human spine shape can be divided into 2 "S" shapes, as shown in fig. 1. Such a physiological shape can enhance the flexibility of human activity. The spine is composed of 33 to 34 vertebrae, including the cervical, thoracic, lumbar and sacral (pelvic) vertebrae from top to bottom. The cervical vertebrae has 7 vertebrae with the maximum range of motion. The 12 vertebrae of the thoracic vertebra are respectively connected with the ribs to form a chest cavity with higher rigidity, so that the internal organs of a human are protected. The 5 vertebrae of the lumbar spine connect the thoracic cavity and sacrum and provide mobility to the lumbar region (lower back). While the sacrum is made up of fused vertebral segments connected to the ilium on the pelvis by sacral joints.
In the lumbar region, the lumbar region is the most fragile and most protected region because of its strong mobility and support most of the body weight (upper body weight) and is subjected to various vibrations (running, jumping, etc.) caused by the movement of a person. Once the lumbar spine has been removed from the "S" shape for some reason (the spine is otherwise lordotic), the intervertebral pressure in the lumbar region increases rapidly, thereby increasing fatigue and pain, and prolonged incorrect posture of the lumbar spine can exacerbate lumbar lesions, resulting in prolapse of the lumbar intervertebral disc.
Since the individual driver and passengers have different lumbar vertebrae protrusion conditions and different heights of the lumbar vertebrae, a good driving posture is required to maintain a good shape of the lumbar vertebrae of the driver and passengers during a long-term driving process, so as to reduce the pressure of the lumbar intervertebral disc, which requires adjustment of the surface energy of the lumbar region of the seat, and the amount of protrusion deformation, the height, and the like are different according to the body conditions of the individual. Therefore, lumbar support systems having adjustable lumbar support regions are of considerable importance.
The two-way regulation means that: the lumbar adjustable support region can be adjusted in both the front and rear directions (i.e., the amount of protrusion of the lumbar region of the seat) but cannot be adjusted in both the up and down directions (i.e., the adjusted lumbar support is adjusted in the up and down directions).
Referring to fig. 2 to 4, the two-way electric lumbar adjustable support system for car seat back currently in use in the market generally uses two spring steel bars 1 combined with nylon plastic to be bent into a bow shape to provide adjustable support for the lumbar region, and is easily subject to fatigue fracture under endurance and fatigue loads, causing complaints from customers and post-sale claims; due to the limitation of the bending limit of the spring steel bars 1, the adjustment of the front and back stroke of the lumbar support system is basically about 35mm, and the actual requirements of most customers cannot be met; meanwhile, a certain service life needs to be met, the spring steel bar 1 needs to be made of special spring steel, raw materials need to be imported, the price is high, the purchase period is long, the order quantity of the raw materials exceeds 10 tons, the occupied capital is serious, and strengthening processes such as shot blasting and the like are needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the two-directional adjustable waist supporting system of car seat that provides a long service life, with low costs to the above-mentioned technical problem that exists of the two-directional adjustable waist supporting system of current car seat back.
The utility model discloses the technical problem that will solve can realize through following technical scheme:
a bi-directional lumbar adjustable support system for a vehicle seat, comprising:
a backrest skeleton steel wire assembly;
the upper end of the backrest support plate is hinged with the upper part of the backrest framework steel wire assembly, so that the whole backrest support plate can turn around a hinged point of the upper end of the backrest support plate and the upper part of the backrest framework steel wire assembly;
the upper guide bridge is arranged on the backrest framework steel wire assembly in a sliding mode and can slide up and down on the backrest framework steel wire assembly;
the fixed end of the front-back adjusting mechanism assembly is arranged on the backrest framework steel wire assembly, the movable end of the front-back adjusting mechanism assembly is connected with the upper guide bridge, and the distance between the fixed end and the movable end of the front-back adjusting mechanism can be changed when the front-back adjusting mechanism works; the method is characterized in that: further comprising:
the hinged support assembly comprises a first support bar, a second support bar and a connecting plate, and the first end of the first support bar is hinged with the upper guide bridge; the second end of the first supporting strip is hinged with the connecting plate; the first end of the second supporting strip is hinged with the connecting plate, and the second end of the second supporting strip is hinged with the fixed end of the front-back adjusting mechanism; the connecting plate is connected with the backrest support plate in a sliding support mode.
In a preferred embodiment of the present invention, the backrest frame wire assembly includes a U-shaped formed wire assembly, an upper supporting wire assembly, and a metal bracket; the U-shaped forming steel wire component is provided with a bottom edge steel wire and a pair of vertical edge steel wires, and two ends of the upper supporting steel wire component are fixedly connected with the upper parts of the pair of vertical edge steel wires through metal buckles respectively; the left side and the right side of the upper guide bridge are arranged on the vertical edge steel wire in a sliding mode; the fixed end of the front and back adjusting mechanism assembly is fixed on the pair of vertical edge steel wires.
In a preferred embodiment of the present invention, the front and rear adjusting mechanism assembly includes a motor bracket, an electric screw nut adjusting mechanism, the motor bracket is formed with the fixed end of the front and rear adjusting mechanism, the motor bracket is fixedly mounted on the vertical edge steel wire, the motor of the electric screw nut adjusting mechanism is fixed on the motor bracket, the nut of the electric screw nut adjusting mechanism is formed with the movable end of the front and rear adjusting mechanism assembly, and the upper guide bridge is connected.
Due to the adoption of the technical scheme, the utility model discloses a two-way waist adjustable support system of car seat adopts the articulated supporting component of a hinge structure form as lumbar support system's adjustment/supporting component, can free activity and can not throw off, consequently in various use occasions. The raw materials are nylon plastic and spring steel bars which are 65Mn (or equivalent); the bending force is avoided in the using process, only the pressure is born, the bending fatigue fracture can be effectively avoided, the cost of the raw material under the same service life can be reduced by about 5-10%, and the front and back adjustment stroke of the product can reach more than 41mm (about 17% higher than that of the existing product); import raw materials are not needed (the purchasing period is short, the materials are common, the goods source is sufficient, and the purchasing is convenient); other special processes (only ordinary stamping and injection molding) are not needed, the process is simple, and the manufacturing cost is low; in conclusion, the product adjustment and the stress performance reach the market leading level.
The utility model discloses can be through general technology: the production is carried out by processes such as injection molding, stamping, thread rolling and the like, and no special process requirement and expensive equipment investment are needed.
The two-way waist adjustable supporting system of the automobile seat can customize a guide steel wire assembly (the change of the guide steel wire assembly is only three mounting points mentioned below) which is used for mounting a product on a seat framework of a customer and supporting the structure and the function operation of the product according to the mounting requirements of the customer, and all other parts can be shared and used in different projects (customers) without extra investment; therefore, aiming at different customers and projects, with minimized investment (steel wire program processing change), the shortest development period (2-3 weeks can provide sample products meeting the installation and trial use of the customers) and the requirements of diversification and quick response of the customers are greatly met.
Drawings
Fig. 1 is a schematic view of a human spine.
Fig. 2 is a schematic structural view of a conventional bi-directional electric lumbar adjustable support system for a car seat back.
FIG. 3 is a schematic view of a prior art bi-directional power lumbar support system for a vehicle seat in a first adjustment state.
FIG. 4 is a schematic view of a conventional two-way motorized lumbar support system for a vehicle seat back in a second adjustment state.
Fig. 5 is a schematic structural view of a backrest frame steel wire assembly in the bidirectional waist adjustable supporting system of the car seat of the present invention.
Fig. 6 is an assembly schematic diagram between the backrest frame steel wire assembly and the upper guide bridge in the bidirectional waist adjustable supporting system of the car seat of the present invention.
Fig. 7 is a schematic structural view of the front-back adjusting mechanism assembly of the bidirectional lumbar adjustable support system of the car seat as seen from one direction (wherein the first nut of the up-down adjusting mechanism assembly is at the first position).
Fig. 8 is a schematic structural view of the front-back adjusting mechanism assembly of the bidirectional lumbar adjustable support system of the car seat viewed from another direction (wherein the adjusting block in the front-back adjusting mechanism assembly is at the first position).
Fig. 9 is a schematic structural view of the front-back adjusting mechanism assembly of the bidirectional lumbar adjustable supporting system of the car seat as seen from one direction (wherein the adjusting block in the front-back adjusting mechanism assembly is at the second position).
Fig. 10 is an assembly schematic diagram between the backrest frame steel wire assembly and the upper guide axle and between the front and rear adjusting mechanism assemblies in the bidirectional waist adjustable supporting system of the car seat of the present invention.
Fig. 11 is an assembly diagram of the backrest frame steel wire assembly, the upper guide axle, the front and rear adjusting mechanism assembly, and the hinge support assembly in the bidirectional lumbar adjustable support system of the car seat of the present invention (the hinge support assembly is in the first hinge state).
Fig. 12 is a schematic view of the hinge support assembly of the bidirectional adjustable lumbar support system of the present invention in a first hinge state.
Fig. 13 is a schematic view of the hinge support assembly in the bidirectional adjustable lumbar support system of the present invention in a second hinge state.
Fig. 14 is an assembly diagram of the backrest frame steel wire assembly, the upper guide axle, the front and rear adjusting mechanism assembly, and the hinge support assembly in the bidirectional lumbar adjustable support system of the car seat of the present invention (the hinge support assembly is in the second hinge state).
Fig. 15 is a schematic view of the assembly between the backrest frame steel wire assembly and the upper guide axle, the front and rear adjusting mechanism assembly, the hinge support assembly, and the backrest support plate of the bidirectional adjustable lumbar support system of the car seat of the present invention, as viewed from one direction.
Fig. 16 is a schematic view of the assembly between the backrest frame wire assembly and the upper guide axle, the front and rear adjusting mechanism assembly, the hinge support assembly, and the backrest support plate in the bidirectional lumbar adjustable support system of the car seat of the present invention, as viewed from another direction.
Fig. 17 is an exploded view of the bi-directional lumbar adjustable support system of the car seat of the present invention.
Fig. 18 is a schematic structural view of the bidirectional lumbar adjustable support system of the car seat in the first adjustment state.
Fig. 19 is a schematic structural view of the bidirectional lumbar adjustable support system of the car seat in the second adjustment state.
Detailed Description
The invention is further described below with reference to the accompanying drawings and the detailed description.
The utility model discloses a two adjustable braced system of waist of car seat, see fig. 17, including back skeleton steel wire assembly 1, back backup pad 5, go up leading bridge 2, front and back adjustment mechanism assembly 3 and two sets of articulated supporting component 4.
Referring to fig. 5, the steel wire assembly 1 of the back frame comprises a U-shaped formed steel wire component, an upper supporting steel wire component 1b and a metal bracket 1 c; the U-shaped formed steel wire component is provided with a bottom edge steel wire 1f and a pair of vertical edge steel wires 1a and 1g, and the upper ends of the pair of vertical edge steel wires 1a and 1g are in a zigzag shape. The two ends of the upper supporting steel wire component 1b are respectively bent with two positions at the upper ends of the pair of vertical side steel wires 1a and 1g through two metal buckles 1d, so that the upper supporting steel wire component 1b is completely fixed at the upper ends of the pair of vertical side steel wires 1a and 1 g. The ends of the upper ends of a pair of vertical edge steel wires 1a and 1g are respectively sleeved with a plastic sleeve 1e,
a convex bending 1h is formed in the middle of the bottom edge steel wire 1f, and two ends of the metal support 1c are riveted on two ends of the convex bending 1h of the bottom edge steel wire 1 f. The back framework steel wire assembly 1 can be effectively fixed on the seat backrest framework through the plastic sleeve 1e and the metal bracket 1c at the upper ends of the pair of vertical side steel wires 1a and 1 g. The positions of the plastic sleeve 1e and the metal bracket 1c at the upper ends of the pair of vertical edge steel wires 1a and 1g are adjusted, so that the requirements of most of customer seat frameworks can be met.
The upper ends of the pair of vertical edge steel wires 1a and 1g are zigzag, so that the system can bear buffering under impact load, and the comfort of the system is improved.
A bent section 1i, 1j is formed at the lower end of each of a pair of vertical side wires 1a, 1g for mounting a front and rear driving mechanism assembly.
Referring to fig. 6, the left and right sides of the upper guide bridge 2 are slidably mounted on the pair of vertical edge steel wires 1a, 1g through guide grooves 2a, 2b having undercuts, so that the upper guide bridge 2 can slide up and down along the pair of vertical edge steel wires 1a, 1 g.
Referring to fig. 7 to 9, the front-rear adjusting mechanism assembly 3 includes a motor bracket and an electric lead screw nut adjusting mechanism. The motor support constitutes the stiff end of fore-and-aft adjustment mechanism 3, including box direction lid 3a, box 3b of installing together, is provided with the location mounting groove 3f of taking the back-off, 3g in the left and right sides of box direction lid 3 a.
The electric screw rod nut adjusting mechanism comprises a motor 3c, a screw rod 3d, a nut and an adjusting slide block 3e, wherein the motor 3c is installed on the box body 3b, and the box body guide cover 3a and the box body 3b form a closed space through welding. The lower end of the screw rod 3d is connected with an output shaft of the motor 3c, and the adjusting slide block 3e and the nut are screwed on the screw rod 3 d. The motor 3c drives the screw rod 3d to rotate, and the nut drives the adjusting slide block 3e to slide up and down and back and forth on the screw rod 3 d. The tail end of the screw rod 3d is provided with a limiting piece 3h for limiting the end point position of the adjusting slide block 3 e. The length of the adjusting screw rod 3d and the position of the limiting part 3h can be adjusted conveniently to adjust the stroke of the adjusting slide block 3e and the stroke of the front and back adjusting mechanism assembly 3.
Referring to fig. 10, the front-rear adjusting mechanism assembly 3 is fastened to the bending sections 1i and 1j at the lower ends of the pair of vertical edge steel wires 1a and 1g through two positioning mounting grooves 3f and 3g with reverse buckles on the box body guide cover 3a, so that the fixed end of the front-rear adjusting mechanism assembly 3 is fixed on the pair of vertical edge steel wires 1a and 1g and cannot slide up and down. The integral supporting position of the two-direction waist adjustable supporting system of the automobile seat can be adjusted by adjusting the positions of the bending sections 1i and 1j at the lower ends of the pair of vertical edge steel wires 1a and 1 g. An adjusting slide block 3e in the front-back adjusting mechanism assembly 3 is clamped in a driving groove of the upper guide axle 2 through a guide groove.
Referring to fig. 11 to 14, each set of the hinge support assemblies 4 includes first and second support bars 4a and 4c and a connection plate 4 b. The first ends of the first and second supporting bars 4a and 4c are cylindrical 4d and 4e, and the cylindrical 4d and 4e are respectively clamped in the circular grooves 4f and 4g of the connecting plate 4b, so that the first ends of the first and second supporting bars 4a and 4c and the connecting plate 4b are in a stroke hinge structure. The first and second support bars 4a, 4c are rotatable about the circular grooves 4f, 4 g. The second ends of the first supporting strips 4a and the second ends of the first supporting strips 4c are both provided with buckling structures 4h and 4i, the buckling structures 4h of the first supporting strips 4a are arranged in the mounting grooves 2c of the upper guide bridge 2, and a hinge structure is formed between the buckling structures 4h and the upper guide bridge 2, so that the first supporting strips 4a can freely rotate around the mounting grooves 2 c; the buckle structure 4i of the second support strip 4c is installed in the installation groove 3i of the box guide cover 3a, and forms a hinge structure with the box guide cover 3a, so that the second support strip 4c can rotate freely around the installation groove 3 i.
Referring to fig. 15 and 16, the upper end of the backrest support plate 5 is mounted on the upper support wire assembly 1b by two undercuts 5a and can rotate around the upper support wire assembly 1 b. The back support plate 5 is connected to a connecting plate 4b, which connecting plate 4b provides support for the back support plate 5.
Referring to fig. 17 to 19, the motor 3c drives the screw rod 3d to rotate, the nut drives the adjusting slider 3e to slide back and forth up and down on the screw rod 3d, the adjusting slider 3e drives the upper guide bridge 2 to slide up and down along the pair of vertical edge steel wires 1a and 1g, the upper guide bridge 2 drives the connecting plate 4b to move back and forth through the first supporting strip 4a and the first supporting strip 4c, so that the backrest supporting plate 5 is forced to rotate around the upper supporting steel wire assembly 1b, and the function of adjusting the automobile seat back and forth in two directions with adjustable waist is provided.
The utility model discloses only provide adjustable support in driver and passenger's lumbar region, this is convenient for the seat manufacturer to arrange the structure of seat in a flexible way to and install various safety device such as active headrest/flank support etc.. In the case of installing a manual regulator or an electric regulator manufactured by the company, the system can be used for manual regulation or electric regulation, and provides a good comfort experience for drivers and passengers.
Claims (3)
1. A bi-directional lumbar adjustable support system for a vehicle seat, comprising:
a backrest skeleton steel wire assembly;
the upper end of the backrest support plate is hinged with the upper part of the backrest framework steel wire assembly, so that the whole backrest support plate can turn around a hinged point of the upper end of the backrest support plate and the upper part of the backrest framework steel wire assembly;
the upper guide bridge is arranged on the backrest framework steel wire assembly in a sliding mode and can slide up and down on the backrest framework steel wire assembly;
the fixed end of the front-back adjusting mechanism assembly is arranged on the backrest framework steel wire assembly, the movable end of the front-back adjusting mechanism assembly is connected with the upper guide bridge, and the distance between the fixed end and the movable end of the front-back adjusting mechanism can be changed when the front-back adjusting mechanism works; the method is characterized in that: further comprising:
the hinged support assembly comprises a first support bar, a second support bar and a connecting plate, and the first end of the first support bar is hinged with the upper guide bridge; the second end of the first supporting strip is hinged with the connecting plate; the first end of the second supporting strip is hinged with the connecting plate, and the second end of the second supporting strip is hinged with the fixed end of the front-back adjusting mechanism; the connecting plate is connected with the backrest support plate in a sliding support mode.
2. The bi-directional lumbar support system of claim 1, wherein said backrest frame wire assembly comprises a U-shaped formed wire assembly, an upper support wire assembly, a metal bracket; the U-shaped forming steel wire component is provided with a bottom edge steel wire and a pair of vertical edge steel wires, and two ends of the upper supporting steel wire component are fixedly connected with the upper parts of the pair of vertical edge steel wires through metal buckles respectively; the left side and the right side of the upper guide bridge are arranged on the vertical edge steel wire in a sliding mode; the fixed end of the front and back adjusting mechanism assembly is fixed on the pair of vertical edge steel wires.
3. The bi-directional lumbar support system of claim 2, wherein said fore-and-aft adjustment mechanism assembly comprises a motor bracket and an electric screw nut adjustment mechanism, said motor bracket forms a fixed end of said fore-and-aft adjustment mechanism, said motor bracket is fixedly mounted on said vertical side steel wire, a motor of said electric screw nut adjustment mechanism is fixed on said motor bracket, and a nut of said electric screw nut adjustment mechanism forms a movable end of said fore-and-aft adjustment mechanism assembly and is connected with said upper guide bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921468584.XU CN210707027U (en) | 2019-09-05 | 2019-09-05 | Bidirectional waist adjustable supporting system of automobile seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921468584.XU CN210707027U (en) | 2019-09-05 | 2019-09-05 | Bidirectional waist adjustable supporting system of automobile seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210707027U true CN210707027U (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921468584.XU Active CN210707027U (en) | 2019-09-05 | 2019-09-05 | Bidirectional waist adjustable supporting system of automobile seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210707027U (en) |
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2019
- 2019-09-05 CN CN201921468584.XU patent/CN210707027U/en active Active
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