KR100974511B1 - A waist support apparatus of an automobile seat - Google Patents

Abstract

The present invention relates to a waist support that is installed on a seat of a vehicle, and the vehicle seat waist support according to the present invention is fixed to a seat bracket that is formed on a seat frame forming a backrest of a vehicle seat, and rotatably coupled to one side of the fixed bracket. And a support bracket to which the rotation angle is elastically adjusted, and a waist support plate rotatably coupled to the front end of the support bracket and to which the rotation angle is elastically adjusted.

According to the present invention configured as described above is installed in the car seat can improve the ride comfort of the occupant, it is possible to reduce the inconvenience caused during long time driving.

Seat frame, fixing bracket, support bracket, waist support plate, fixing pin, elastic member

Description

Car seat waist support {A waist support apparatus of an automobile seat}

The present invention relates to a car seat waist support, and more particularly, to a car seat waist support is coupled to the car seat frame position is adjusted to fit the body of the occupant.

In general, a car seat refers to a seat in which a passenger can sit in a car, and includes a seat back supporting a passenger's back, a head rest supporting a head, and an arm rest where a passenger's arm is placed. ) And lumber support where the passenger's side is supported.

Here, the seatback is to support the waist and back feel a lot of fatigue when driving the car, and includes a separate waist support inside the seat to reduce the fatigue caused to the waist of the occupant.

However, the conventional waist support bar is made to be fixed to the average waist position of the occupant, there was a problem that the waist of the occupant is not stably supported by the difference in the body structure of the occupant.

In addition, even if there is a change in the posture of the occupant while driving the car, the position of the waist support is fixed, so that the waist of the occupant cannot be stably supported.

SUMMARY OF THE INVENTION An object of the present invention is to provide a car seat waist support whose height and angle vary according to differences in the body of the occupant.

Another object of the present invention is to provide a car seat waist support whose height and angle are adjusted according to the waist position of the occupant that changes during vehicle driving.

An object of the present invention described above, the fixing bracket is installed on the seat frame forming the backrest of the automobile seat, the support bracket is rotatably coupled to one side of the fixing bracket and the rotation angle is elastically adjusted, and the support bracket It is achieved by providing an automobile seat lumbar support comprising a lumbar support plate pivotably coupled to the front end and elastically adjustable in rotation.

In addition, a hinge bracket protruding from the front of the fixing bracket, a fixing pin penetrates through one side of the hinge bracket and the rear end of the support bracket to rotate the support bracket up and down on the hinge bracket, and the support bracket A torsion spring is fixed to the fixing pin at a lower portion of the support bracket to elastically support the rotation of the support bracket.

In addition, an opening portion formed on a rear surface of the waist support plate to accommodate the front end portion of the support bracket, a locking piece formed on the opening portion and coupled to the front end portion of the support bracket, a front end portion of the support bracket and the engagement portion A hinge pin installed on a side to rotate the waist support plate up and down, and a coil spring installed on the front end of the support bracket and the waist support plate to elastically support the waist support plate with respect to the support bracket. It is done.

In addition, the locking piece is characterized in that it comprises a cutting groove which is elastically opened by the pressing of the hinge pin is rotatably coupled to the hinge pin and the movement of the hinge pin to the mounting groove.

In addition, the waist support plate is characterized in that it consists of a support plate including the opening portion, and a cover is coupled to the front surface of the support plate and the lumbar support is formed corresponding to the shape of the back of the human body.

In addition, the protrusion formed on the front surface of the support plate is coupled to one end of the coil spring, characterized in that consisting of a fixing hole formed on the upper end of the support bracket and coupled to the other end of the coil spring.

In addition, the front surface of the support plate is characterized in that the rib is further provided to reinforce the torsion and rigidity of the support plate.

According to the above car seat waist support according to the present invention, the waist of the occupant can be in close contact with the seat back through the car seat waist support that the angle of the position of the support bracket coupled to the fixing bracket and the angle of the waist support plate coupled to the support bracket is changed. And, this has the effect of reducing the burden on the waist of the vehicle occupant during operation.

In addition, according to the posture that changes during the operation of the vehicle occupant, it is possible to provide a waist support in which the position is changed, thereby reducing the burden of the waist during the operation of the vehicle occupant.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are intended to describe in detail enough to be easily carried out by those skilled in the art to which the present invention pertains. This does not mean that the technical spirit and scope of the present invention is limited.

1 is a perspective view of a seat seated on the vehicle seat back support according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the car seat waist support shown in FIG.

Automobile seat waist support according to a preferred embodiment of the present invention is fixed to the fixing bracket 10 is installed on the seat frame 110 to form the back of the car seat 100, rotatably coupled to one side of the fixing bracket And a support bracket 20 having a rotation angle elastically adjusted, and a waist support plate 30 rotatably coupled to the front end of the support bracket and having a rotation angle elastically adjusted.

The fixing bracket 10 is coupled to the inside of the seat frame 110 is installed in the seat 100, and functions to fix and support the waist support to the seat 100.

Fixing bracket 10 is a plate-shaped member that the load of the occupant applied to the back support plate 30 and the car seat back support itself load should be supported, as shown in Figure 2 in order to maintain rigidity fixed bracket 10 The side part of is bent backwards and formed.

In addition, it is preferable to reduce the weight of the fixing bracket 10 to improve the fuel economy of the vehicle, and it is preferable that a hole is formed in the upper surface of the fixing bracket 10 within a range that does not affect the strength.

The fixing bracket 10 is fixed between the seat frame 110 and the seat frame 110. At this time, the seat frame 110 and the fixing bracket 10 may be combined using a separate fastener, but may be combined by welding in consideration of a simplified process and a separate fastener manufacturing cost.

The support bracket 20 is rotated up and down by being coupled to the fixing bracket 10 and is connected to the waist support plate 30.

Support bracket 20 is formed long in the front, the front end is rotatably coupled to the waist support plate 30 and the rear end is rotatably coupled to the fixing bracket (10).

The waist support plate 30 is rotatably coupled to the front end of the support bracket 20 so that the waist can be supported by being tilted by the load of the occupant.

Therefore, the car seat waist support according to the present embodiment is adjusted in height, the angle of the waist support plate 30 is adjusted to be in close contact with the waist of the occupant.

Specifically, looking at with reference to Figure 3a showing the connection between the fixing bracket and the support bracket as follows.

The hinge bracket 12 protruding from the front of the fixing bracket 10 and the one side of the hinge bracket 12 and the rear end of the support bracket 20 are penetrated to the support bracket 20 on the hinge bracket 12. Fixing pin (40) to be rotatable with a fixed to the fixing pin (40) at the bottom of the support bracket 20, the torsion spring (50) to elastically support the rotation of the support bracket 20 relative to the fixing bracket (10) ) Is provided.

Here, the hinge bracket 12 is for fixing the support bracket 20 to the fixing bracket 10, and corresponding to the width of the support bracket 20 to restrain the movement of the support bracket 20 to the side. Protrudes to the front of the (10).

At this time, one side of the hinge bracket 12 is formed with a first through-hole 14 to be coupled via the support bracket 20 and the fixing pin 40.

In addition, the second through holes 22 are formed at positions corresponding to the first through holes 14 at both rear ends of the support bracket 20.

The rear end of the support bracket 20 is disposed between the hinge bracket 12, the fixing pin in the first through hole 14 formed in the hinge bracket 12 and the second through hole 22 formed in the support bracket 20. 40 is penetrated and coupled to the torsion spring 50, as shown in FIG. 3A, and formed in the second through hole 22 and the hinge bracket 12 formed in the support bracket 20 on the other side again. It is coupled through the one through hole (14).

 The torsion spring 50 is elastically supporting the rotation of the support bracket 20 with respect to the fixing bracket 10 is fixed on the concentric circle of the fixing pin 40 penetrated to the rear lower portion of the support bracket 20, One end of the torsion spring 50 is supported by the fixing bracket 10 so as to be able to have a certain play, and the other end is supported by the bottom of the support bracket 20.

At this time, it is preferable that the locking groove 16 is formed on the fixing bracket 10 between the hinge brackets 12 so that one end of the torsion spring 50 is firmly fixed.

A circular fixing groove 40a is formed on the outer circumferential surface of the end of the fixing pin 40 coupled as described above. The fixing groove 40a has a circular clip 40b which prevents the fixing pin 40 from being separated on the hinge bracket 12. ) Is combined.

Looking at the operation of the torsion spring 50 through the operation shown in Figure 4a as follows.

When the occupant is seated on the seat 100, the height of the waist is lower than the initial state of the waist support plate 30, the height of the waist support plate 30 is moved downward as shown in Figure 4a.

In this case, the torsion spring 50 coupled between the fixing bracket 10 and the support bracket 20 causes deformation to move the support bracket 20 to its original state.

Therefore, when the height of the waist increases due to a change in the attitude of the occupant during driving of the vehicle or when the load applied to the waist support plate 30 disappears by the occupant, the height of the waist support plate 30 is restored to its original shape.

In addition, the coupling relationship between the waist support plate 30 and the support bracket 20 will be described with reference to FIG. 3B, which is a perspective view and a partially enlarged view of the coupling relationship between the support bracket 20 and the waist support plate 30.

Opening portion 36 formed on the rear surface of the waist support plate 30 to receive the front end of the support bracket 20, and the engaging piece 38 formed in the opening 36 to be coupled with the front end of the support bracket 20 ), A hinge pin 26 installed at the front end and the engaging piece 38 of the support bracket 20 to rotate the waist support plate 30 up and down, and the front end and the waist support plate 20 of the support bracket 20 ( The coil spring 60 is installed on the support bracket 20 and elastically supports the waist support plate 30 with respect to the support bracket 20.

Hinge holes 24 are formed at both side surfaces of the front end of the support bracket 20, and the hinge pins 26 coupled to the waist support plate 30 are coupled to the hinge holes 24.

The waist support plate 30 is formed with an opening portion 36 for receiving the front end portion of the support bracket 20, and the engaging pieces 38 rotatably coupled with the hinge pins 26 on both sides of the opening portion 36. Is formed.

In addition, the coil spring 60 is coupled to the front end of the support bracket 20 and the waist support plate 30.

Looking at the coupling relationship of the coil spring 60 in detail as follows.

On the front side of the front end of the support bracket 20, a fixing hole 28 to be engaged with the ring formed at the lower end of the coil spring 60 is formed, the protruding piece (34a) extending to the front of the support plate 32 is formed A fixing hole 34b is formed to be coupled to the ring formed at the upper end of the coil spring 60 to be coupled to the coil spring 60.

Therefore, when the waist support plate 30 is rotated in the clockwise direction as shown in the use state diagram of FIG. 4B, the coil spring 60 coupled between the support bracket 20 and the support plate 32 is tensioned, and the waist support plate 30 is provided. When rotating in the counterclockwise direction, the coil spring 60 is compressed, and when the occupant's load applied to the waist support plate 30 is reduced or removed, the waist support plate 30 is restored to its original state.

At this time, look at the coupling relationship between the engaging piece 38 and the hinge pin 26 in detail.

The locking piece 38 is provided with a seating groove 38b to which the hinge pin 26 is rotatably coupled. On one side of the seating groove 38b, the seating groove 38b is elastically opened by the pressure of the hinge pin 26. An incision 38a for guiding the movement of the hinge pin 26 is formed at 38b.

The seating groove 38b is formed in a circular shape, and the outer circumferential surface of the hinge pin 26 is rotatably coupled, and a cutout portion 38a cut into a 'V' shape is formed at one side thereof.

Therefore, the hinge pin 26 is guided to the seating groove 38b along the cutout 38a so as to be pivotally inserted into the seating groove 38b.

In addition, the lumbar support plate 30 is a support plate 32 including the opening portion 36, and lumbar support corresponding to the shape of the back of the human body to be coupled to the front surface of the support plate 32 and close to the waist ( It is preferable that it consists of the cover 39 in which 39a) was formed.

Lumbar support (39a) is formed on the front of the cover 39 at a height high enough to be in close contact with the concave lumbar region such as occupants.

At this time, the side wall 34 may be formed in the front direction so as to be fitted with the cover at the edge of the support plate 32.

In addition, the rib 33 may be formed in a lattice shape in the horizontal and vertical directions on the front surface of the support plate 32 to reinforce the torsion and rigidity of the support plate 32.

1 is a perspective view of a seat seated vehicle seat back support according to an embodiment of the present invention.

Figure 2 is an exploded perspective view of the car seat back support shown in FIG.

3A is a perspective view and a partially enlarged view of a coupling relationship between the fixing bracket and the support bracket of the car seat waist support shown in FIG. 1;

Figure 3b is a perspective view and a partially enlarged view of the coupling relationship of the support bracket and the back support plate of the vehicle seat back support shown in FIG.

4A and 4B are operational views of the car seat lumbar support shown in FIG.

<Explanation of symbols for the main parts of the drawings>

10; Securing bracket

delete

12; Hinge bracket

14; First through

16; Home

20; Support bracket

22; Second through

24; Hinge hole

26; Hinge pin

28; Fixing hole

30; Lumbar support

32; Support plate

33; live

34a; Protrusion

34b; Fixing hole

36; Opening

38; Jam

38a; Incision

38b; Home

39; cover

39a; Lumbar support

40; Push pin

40a; Fixing groove

40b; Clip

50; Torsion spring

60; Coil spring

100; Sheet

110; Seat frame

Claims (7)

A fixing bracket installed on a seat frame forming a backrest of a car seat; A support bracket rotatably coupled to one side of the fixing bracket and configured to elastically adjust a rotation angle; A waist support plate rotatably coupled to a front end portion of the support bracket and having a rotation angle adjusted elastically; A hinge bracket protruding from the front of the fixing bracket; A fixing pin penetratingly coupled to one side of the hinge bracket and the rear end of the support bracket to enable the support bracket to rotate vertically on the hinge bracket; And And a torsion spring fixed to the fixing pin at the bottom of the support bracket to resiliently support rotation of the support bracket with respect to the fixing bracket. delete The method of claim 1, An opening portion formed at a rear surface of the waist support plate to accommodate a front end portion of the support bracket; A locking piece formed at the opening and coupled to a front end of the support bracket; A hinge pin installed at a front end of the support bracket and the engaging piece to rotate the waist support plate up and down; And And a coil spring installed on the front end of the support bracket and the waist support plate to elastically support the waist support plate with respect to the support bracket. The method of claim 3, wherein The locking piece includes a seating groove in which the hinge pin is rotatably coupled and an incision part that is elastically opened by the pressure of the hinge pin and guides the movement of the hinge pin to the seating groove. support fixture. The method of claim 3, wherein The waist support plate is a support plate including the opening; And Automobile seat waist support is coupled to the front of the support plate and made of a cover formed with a lumbar support corresponding to the shape of the back of the human body. The method of claim 4, wherein A protrusion piece protruding from the front of the support plate and coupled to one end of the coil spring; Car seat waist support is formed on the front end of the support bracket is made of a fixing hole coupled to the other end of the coil spring. The method of claim 4, wherein The front seat of the support plate is a car seat waist support, characterized in that the rib is further provided to reinforce the torsion and rigidity of the support plate.

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