CN211166541U - Manual back of seat adjusts bearing structure - Google Patents

Abstract

The utility model discloses a manual backrest adjusting and supporting structure of a seat, which is positioned between a seat framework and a seat foam layer and comprises a framework steel wire, a plastic supporting plate, a supporting steel plate, a lower bridge and an upper bridge, wherein the framework steel wire is formed into a whole by injection molding of a U-shaped guide steel wire and a transverse steel wire, the U-shaped guide steel wire comprises two head sections, a middle section and a bottom section, the two head sections are fixed on the seat framework, the plastic supporting plate is formed into a whole by injection molding of plastic, the top of the plastic supporting plate is directly injected on the transverse steel wire and can be overturned by taking the transverse steel wire as an axis, the lower bridge is fixed on the U-shaped guide steel wire by injection molding, two ends of the upper bridge are arranged on the middle section in a sliding way so as to move up and down relative to the lower bridge, the upper bridge and the lower bridge are connected by a stay, the other end is fixedly connected with the upper bridge, and the upper bridge is driven to move downwards through the stay wire, so that the supporting steel plate is elastically deformed and arched, and the plastic supporting plate is ejected out.

Description

Manual back of seat adjusts bearing structure

Technical Field

The utility model relates to a car seat structure especially relates to a bearing structure is adjusted to manual back of seat.

Background

With the increasing living standard of people, automobiles enter common people, and meanwhile, the comfort requirement of people on the automobiles is higher and higher, wherein the comfort of automobile seats influences the comfort of drivers and passengers to a great extent.

According to the principle of human engineering, the shape of human spine can be divided into 2S shapes, and such physiological shapes can enhance the flexibility of human body activities. The spine includes cervical, thoracic, lumbar and sacral (pelvic) vertebrae, and in the lumbar region, the lumbar region is the most vulnerable and most in need of protection due to its strong mobility and support of most of the body weight, and various vibrations caused by human activities. Once the lumbar spine has been removed from the "S" shape for various reasons, the intervertebral pressure in the lumbar region increases rapidly, thereby making it more susceptible to fatigue and pain, and long incorrect lumbar posture aggravates lumbar lesions, resulting in prolapse of the lumbar intervertebral disc. If the automobile seat can provide stronger lumbar support for a driver and a passenger and can provide more uniform stress distribution, the fatigue of the driver and the passenger is necessarily greatly relieved, and a more comfortable effect is provided.

The seat on most motorcycle types at present all is collocated and has adjustable back to adjust according to driver and crew's needs separately, relatively fixed back design is more humanized, and the suitability is high. However, current seat supports regulation structure by the skeleton steel wire, plastics layer board and supporting steel plate are constituteed, wherein the supporting steel plate is as independent part, the shape is used for the support for the arch, and remove through the actuating mechanism drive, adapt to human waist position, the spare part of this kind of product is more, the structure is complicated, assembly process is more loaded down with trivial details, the plastics layer board is installed on the skeleton steel wire with the supporting steel plate after, it is incompletely fixed to belong to, receive machining precision and load condition influence, there is the pine easily and takes off the risk, and to automatically controlled actuating mechanism, the whole price of product is expensive, market competitiveness is general, weight is heavier, in addition, the removal of independent supporting steel plate is not high to the laminating nature of whole vertebra, the travelling comfort is not good enough.

SUMMERY OF THE UTILITY MODEL

Based on it is above, the utility model provides a bearing structure is adjusted to manual back of seat overcomes the not enough of current seat supporter, redesign skeleton steel wire and bearing structure improve back travelling comfort and reliability, when providing better support impression for driver and crew, improve product competitiveness.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a manual backrest adjusting and supporting structure of a seat is positioned between a seat framework and a seat foam layer and comprises a framework steel wire, a plastic supporting plate, a supporting steel plate, a lower bridge and an upper bridge, wherein the framework steel wire is formed into a whole by injection molding of a U-shaped guide steel wire and a transverse steel wire, the U-shaped guide steel wire comprises two head sections, a middle section and a bottom section, the two head sections are fixed on the seat framework, the plastic supporting plate is formed into a whole by injection molding of plastic, the top of the plastic supporting plate is directly injected on the transverse steel wire and can be turned over by taking the transverse steel wire as an axis, the lower bridge is injection molded and fixed on the U-shaped guide steel wire, two ends of the upper bridge are arranged on the middle section in a sliding mode so as to move up and down relative to the lower bridge, the upper bridge and the lower bridge are connected through a stay wire for adjusting the distance between the upper, the upper bridge is driven to move downwards by the stay wire, so that the supporting steel plate is elastically deformed and arched, and the plastic supporting plate is ejected out.

In particular, the two ends of the upper bridge are injection-moulded on the middle section and can slide axially along the middle section.

Particularly, the bottom end of the lower bridge is injected on the bottom section and can turn over by taking the bottom section as an axis, and the two side ends of the lower bridge are fastened and fixed on the middle section.

In particular, the supporting steel plates are strip-shaped, and the two supporting steel plates are symmetrically arranged.

In particular, the upper bridge is provided with a slot corresponding to the end of the supporting steel plate.

In particular, a convex buckle matched with the seat framework is arranged on the head section.

Particularly, still include the fixed block, the fixed block is directly moulded plastics on the bottom section to can use the bottom section to overturn as the axle center, be provided with the mounting nut who links firmly with the seat skeleton on the fixed block.

Particularly, the fixing block and the mounting nut are integrally injection-molded.

Particularly, the fixed end of the stay wire is arranged on the upper bridge, the movable end of the stay wire is arranged on the lower bridge, and the stay wire is externally connected with a manual driver.

Particularly, the plastic supporting plate is bent and formed according to the physiological radian of a human body, and the plastic supporting plate is directly contacted with the foam layer of the seat and is reserved with a preset ejection amount.

To sum up, the beneficial effects of the utility model are that, compared with the prior art, manual back of seat is adjusted bearing structure and is realized that manual control plastics layer board warp through acting as go-between and couple spring to provide required support, for the electric drive mode, have light in weight, the shaping is simple, with low costs, support regional big, the atress is even, difficult wearing and tearing and take off advantages such as pine, improved back travelling comfort and reliability, reduced spare part simultaneously, accord with present motorcycle type lightweight, the trend of high performance price ratio more, improved the competitiveness of product, the adaptation is in the full system motorcycle type.

Drawings

Fig. 1 is a front view of a manual backrest adjustment support structure for a seat provided by an embodiment of the present invention;

fig. 2 is a back view of a manual backrest adjusting support structure of a seat according to an embodiment of the present invention;

fig. 3 is a side view of a manual backrest adjusting support structure for a seat according to an embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 3, the present embodiment provides a manual backrest adjusting and supporting structure for a seat, which is located between a seat frame and a seat foam layer, and includes a frame steel wire 1, a plastic supporting plate 2, a supporting steel plate 3, a lower bridge 4, an upper bridge 5, a pulling wire 6, a hook spring 7 and a fixing block 8.

Skeleton steel wire 1 is as an organic whole by U-shaped direction steel wire and horizontal steel wire 9 injection moulding, and U-shaped direction steel wire includes two head sections 10, middle part section 11 and bottom section 12, and two head sections 10 are fixed in on the seat skeleton.

The head section 10 is provided with a convex buckle 13 matched with the seat framework, the surface of the head section is provided with an injection molding layer for preventing the head section from being stressed and worn to generate abnormal sound, the installation gap is eliminated, the abnormal sound is reduced, and the convex buckle 13 is matched with the framework to eliminate the shaking.

The plastic supporting plate 2 is integrally formed by plastic injection molding, the top of the plastic supporting plate is directly injected on the transverse steel wire 9, and the whole plastic supporting plate can turn over by taking the transverse steel wire 9 as an axis. The plastic supporting plate 2 is bent and formed according to the physiological radian of a human body, the plastic supporting plate 2 is in direct contact with the foam layer of the seat, and a pre-ejection amount is reserved, so that passengers can be supported by the back and the waist more comfortably.

The lower bridge 4 is fixed on the U-shaped guide steel wire in an injection molding mode, specifically, the bottom end of the lower bridge 4 is injection molded on the bottom section 12 and can be turned over by taking the bottom section 12 as an axis, and the two side ends of the lower bridge 4 are fastened and fixed on the middle section 11.

The both ends of going up bridge 5 slide to set up on middle part section 11, and specifically the both ends of going up bridge 5 are moulded plastics on middle part section 11 to can be along middle part section 11 endwise slip.

Therefore, the upper bridge 5 can move up and down relative to the lower bridge 4, and the upper bridge 5 is connected with the lower bridge 4 through a pull wire 6 for adjusting the distance between the upper bridge 5 and the lower bridge 4 and a hook spring 7 for resetting.

The fixed end of the stay wire 6 is arranged on the upper bridge 5, the movable end is arranged on the lower bridge 4, and the stay wire 6 is externally connected with a manual driver 14.

One end of the supporting steel plate 3 is connected with the bottom section 12 through injection molding, and the other end is fixedly connected with the upper bridge 5. The supporting steel plates 3 are strip-shaped, and the two supporting steel plates 3 are symmetrically arranged. The end part of the upper bridge 5 corresponding to the supporting steel plate 3 is provided with a slot.

Fixed block 8 directly moulds plastics on bottom section 12 to can use bottom section 12 to overturn as the axle center, be provided with the mounting nut who links firmly with the seat skeleton on fixed block 8, fixed block 8 moulds plastics as an organic whole with mounting nut.

The upper bridge 5 is driven to move downwards through the stay wire 6, so that the supporting steel plate 3 is elastically deformed and arched, and the supporting steel plate 3 acts on the back of the plastic supporting plate 2, thereby ejecting the plastic supporting plate 2.

In conclusion, the manual backrest adjusting and supporting structure for the seat realizes deformation of the manual control plastic supporting plate through the pull wire and the hook spring, so that required support is provided, and compared with an electric driving mode, the manual backrest adjusting and supporting structure for the seat has the advantages of light weight, simplicity in forming, low cost, large supporting area, uniformity in stress, difficulty in abrasion, loosening and the like, improves comfort and reliability of the backrest, reduces parts, better meets the trend of light weight and high cost performance of the existing vehicle type, improves competitiveness of products, and is adaptive to the vehicle type of a whole system.

The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A manual backrest adjusting and supporting structure of a seat is positioned between a seat framework and a seat foam layer and is characterized by comprising a framework steel wire, a plastic supporting plate, a supporting steel plate, a lower bridge and an upper bridge,

the framework steel wire is formed into a whole by injection molding of a U-shaped guide steel wire and a transverse steel wire, the U-shaped guide steel wire comprises two head sections, a middle section and a bottom section, the two head sections are fixed on the seat framework,

the plastic supporting plate is integrally formed by plastic injection molding, the top of the plastic supporting plate is directly injected on the transverse steel wire, and the whole plastic supporting plate can turn over by taking the transverse steel wire as an axis,

the lower bridge is fixed on the U-shaped guide steel wire in an injection molding way, two ends of the upper bridge are arranged on the middle section in a sliding way so as to move up and down relative to the lower bridge, the upper bridge and the lower bridge are connected through a pull wire for adjusting the distance between the upper bridge and the lower bridge and a hook spring for resetting,

one end of the supporting steel plate is connected with the bottom section through injection molding, the other end of the supporting steel plate is fixedly connected with the upper bridge, and the upper bridge is driven to move downwards through the stay wire, so that the supporting steel plate is elastically deformed and arched, and the plastic supporting plate is ejected.

2. The manual seat back adjustment support structure according to claim 1, wherein: and two ends of the upper bridge are injected on the middle section and can axially slide along the middle section.

3. The manual seat back adjustment support structure according to claim 1, wherein: the bottom end of the lower bridge is injection-molded on the bottom section and can be turned by taking the bottom section as an axis, and the two side ends of the lower bridge are fastened and fixed on the middle section.

4. The manual seat back adjustment support structure according to claim 1, wherein: the supporting steel plates are strip-shaped, and the two supporting steel plates are symmetrically arranged.

5. The manual seat back adjustment support structure according to claim 4, wherein: and the end part of the upper bridge corresponding to the supporting steel plate is provided with a slot.

6. The manual seat back adjustment support structure according to claim 1, wherein: the head section is provided with a convex buckle matched with the seat framework.

7. The manual seat back adjustment support structure according to claim 1, wherein: still include the fixed block, the fixed block is directly moulded plastics on the bottom section, and can use the bottom section overturns as the axle center, be provided with the mounting nut who links firmly with the seat skeleton on the fixed block.

8. The manual seat back adjustment support structure according to claim 7, wherein: the fixed block and the mounting nut are integrally molded by injection.

9. The manual seat back adjustment support structure according to claim 1, wherein: the fixed end of the stay wire is arranged on the upper bridge, the movable end of the stay wire is arranged on the lower bridge, and the stay wire is externally connected with a manual driver.

10. The manual seat back adjustment support structure according to claim 1, wherein: the plastic supporting plate is formed by bending according to the physiological radian of a human body, and the plastic supporting plate is directly contacted with the foam layer of the seat and is reserved with a preset ejection amount.

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