CN214510381U

CN214510381U - Automatic adjusting chair back framework

Info

Publication number: CN214510381U
Application number: CN202120029005.2U
Authority: CN
Inventors: 毛明光
Original assignee: Ningbo Mingwang Automobile Decorations Co ltd
Current assignee: Ningbo Mingwang Automobile Decorations Co ltd
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2021-10-29
Anticipated expiration: 2031-01-07

Abstract

The utility model discloses an automatic regulation formula back of chair skeleton, including back of the chair frame, prop waist frame, drive shaft and motor, the drive shaft is connected along horizontal rotation the lower part of back of the chair frame, the motor connect in be used for the drive on the back of the chair frame the drive shaft is rotatory, prop waist put up connect in the middle part of back of the chair frame, the front side that props waist frame is equipped with elastic component, elastic component's front side is connected with the cable, the cable passes in proper order elastic component with prop waist frame and with the drive shaft is connected. Because the cable can be along with the rotation of drive shaft and draw in or expand automatically for elastic component can switch between compression state and expansion state automatically, realized letting the back of seat will be along with the rotation of drive shaft and automatic flat compound or bellied function, promoted the experience of the user under lying state and the sitting and standing state and felt, and the operation is reliable and stable.

Description

Automatic adjusting chair back framework

Technical Field

The utility model relates to a technical field of automobile parts, concretely relates to car seat adjusting device.

Background

The middle-high-end automobiles in the market are often provided with electric adjusting type seats, a motor and a rotating shaft are arranged on a seat back frame of the seat, a user only needs to press a switch, and the rotating shaft can drive a seat back to automatically rotate upwards or downwards under the driving of the motor, so that the posture requirements of the user are met.

In order to ensure that the user's waist is supported, the middle of the backrest of the seat is often designed to be convex so as to better fit the user's waist. However, considering that some users sometimes need to take a lying posture to rest on the seat, the protrusion on the middle of the seat may cause discomfort to the user in the lying posture, which may affect the user's feeling.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the problem of the arch in the back middle part of seat among the prior art causes the discomfort to the user under the posture of lying down easily, influences user experience and feels is solved.

The technical scheme of the utility model is that: the utility model provides an automatic regulation formula back of chair skeleton, includes back of the chair frame, props waist frame, drive shaft and motor, the drive shaft rotates to be connected the lower part of back of the chair frame, the motor connect in be used for the drive on the back of the chair frame the drive shaft is rotatory, prop waist frame connect in the middle part of back of the chair frame, the front side of propping waist frame is equipped with elastic component, elastic component's front side is connected with the cable, the cable passes in proper order elastic component with prop waist frame and with the drive shaft is connected.

Compared with the prior art, the driving shaft of the scheme drives the seat back frame to rotate upwards or downwards under the action of the motor, so that the backrest of the seat is switched between vertical and horizontal placement, and due to the arrangement of the waist support frame, the elastic assembly and the inhaul cable, when the seat backrest is vertical, the elastic assembly is in a natural unfolding state and is attached to the waist of a user; when the seat back needs to be switched to the lying posture, the inhaul cable automatically winds and tightens along with the rotation of the driving shaft, and drives the elastic component to form a compression state, so that the protrusion of the seat back is changed into a flat and complex state, the experience of a user in the lying state is improved, and the seat back is stable and reliable.

Preferably, the waist support frame comprises a vertical plate and a transverse plate, the vertical plate is vertically connected to the middle of the back frame, the transverse plate is transversely connected to the middle of the vertical plate, the elastic assembly is located on the transverse plate, and a through hole for the stay cable to pass through is formed in the transverse plate, so that the waist support frame is relatively and stably fixed on the back frame.

Preferably, the elastic component comprises a plurality of springs which are linearly arranged, the axial direction of each spring is perpendicular to the transverse plate, the rear sides of the springs are fixed on the transverse plate, and the pull cables are connected with the front sides of the springs, so that the springs have enough compression strokes.

Preferably, the front side of the spring is welded with a blocking piece, the blocking piece is parallel to the front end face of the spring, and the inhaul cable is connected to the middle of the blocking piece, so that the inhaul cable can drive the spring to compress more stably.

Preferably, the rear side wall of the waist support frame is provided with a wire groove which is communicated with the through hole, so that the cable is neater.

Preferably, the lower part of the vertical plate is provided with a wire guide hole which is vertically arranged and through which the inhaul cable passes, the upper end of the wire guide hole is communicated with the wire groove, the lower end of the wire guide hole is opposite to the middle part of the driving shaft, the arrangement of the wire guide hole avoids the inhaul cable from interfering with other parts on one hand, on the other hand, the inhaul cable can be always connected with the middle part of the driving shaft in a winding manner, and the radial moment influence on the driving shaft is reduced.

Preferably, still include the seat cushion, the seat cushion lay in the place ahead of propping the waist frame promotes user's travelling comfort.

Drawings

Fig. 1 is an axial view of the automatic adjustable chair back frame of the present invention;

fig. 2 is a front schematic view of a lumbar support frame of an automatically adjustable chair back frame of the present invention;

fig. 3 is a schematic view of the back of the lumbar support frame of the automatic adjustable chair back frame of the present invention;

fig. 4 is a schematic front view of a lumbar support frame according to another embodiment of the automatically adjustable back frame of the present invention;

in the drawings: 1-a back of chair frame; 2-a drive shaft; 2.1-motor; 3.1-transverse plate; 3.1 a-vias; 3.1 b-wire groove; 3.2-standing the plate; 3.2 a-wire guide; 4-a spring; 4.1-catch sheet; 5-a pull rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-3, an embodiment of the present invention provides an automatic adjusting chair back frame, including back of the chair frame 1, a waist support frame, a driving shaft 2 and a motor 2.1, the driving shaft 2 is connected to the lower part of the back of the chair frame 1 along the horizontal rotation, the motor 2.1 is connected to the back of the chair frame 1 and used for driving the driving shaft 2 to rotate, the waist support frame is connected to the middle part of the back of the chair frame 1, the front side of the waist support frame is provided with an elastic component, the front side of the elastic component is connected with a pulling cable 5, and the pulling cable 5 sequentially passes through the elastic component and the waist support frame and is connected with the driving shaft 2.

When the seat back support is used, the driving shaft 2 drives the seat back support 1 to rotate upwards or downwards under the action of the motor 2.1, so that the back support of the seat is switched between vertical and horizontal placement, and due to the arrangement of the waist support frame, the elastic assembly and the inhaul cable 5, when the seat back support is vertical, the elastic assembly is in a natural unfolding state and is attached to the waist of a user; when the seat back needs to be switched to the lying posture, the inhaul cable 5 is automatically wound and tightened along with the rotation of the driving shaft 2, and drives the elastic component to form a compression state, so that the seat back is not protruded, the experience of a user in the lying state is improved, and the seat back is stable and reliable.

In this embodiment, the lumbar support frame includes vertical plate 3.2 and horizontal plate 3.1, and vertical plate 3.2 is along vertical setting, and the upper end of vertical plate 3.2 and the middle part fixed connection on the upper portion of back of the chair frame 1, the lower extreme of vertical plate 3.2 and the middle part fixed connection of the lower part of back of the chair frame 1. The transverse plate 3.1 is transversely connected to the middle of the vertical plate 3.2, and a plurality of through holes 3.1a which are horizontally arranged are arranged on the transverse plate 3.1.

The elastic component comprises a plurality of springs 4 which are linearly arranged, and the axial directions of all the springs 4 are perpendicular to the transverse plate 3.1, so that the middle part of the backrest of the seat forms a bulge. The rear side of the spring 4 is fixed on the transverse plate 3.1, and the pull cable 5 is connected with the front side of the spring 4, so that when the pull cable 5 is pulled backwards, the spring 4 is automatically compressed, and the bulge in the middle of the backrest of the seat is automatically leveled.

Referring to fig. 4, in another embodiment, a blocking piece 4.1 is welded on the front side of the spring 4, the blocking piece 4.1 is parallel to the front end surface of the spring 4, and the cable 5 is connected to the middle of the blocking piece 4.1, so as to ensure that the cable 5 drives the spring 4 to compress more stably.

It should be noted that the elastic component may also be other common elastic materials, such as a sponge cushion or a rubber cushion, and also may have the effect similar to the spring 4 of the present embodiment. But because the compression distance of the sponge cushion layer or the rubber cushion layer is shorter, the cushion is suitable for the seat with smaller back bulge.

As the further optimization of the waist supporting frame, the rear side wall of the waist supporting frame is provided with the wire grooves 3.1b which are horizontally arranged, the wire grooves 3.1b are communicated with all the through holes 3.1a, and the inhaul cable 5 penetrates through the through holes 3.1a and then is collected in the wire grooves 3.1b, so that the routing of the inhaul cable 5 is tidy.

In addition, the lower part of the vertical plate 3.2 can also be provided with a wire guide hole 3.2a for the inhaul cable 5 to pass through, the wire guide hole 3.2a is vertically arranged, the upper end of the wire guide hole 3.2a is communicated with the wire groove 3.1b, and the lower end of the wire guide hole 3.2a is over against the middle part of the driving shaft 2. The setting of wire guide 3.2a avoids cable 5 to interfere with other parts on the one hand, and on the other hand makes cable 5 can be all the time with the middle part looks wraparound of drive shaft 2, reduces the radial moment influence that drive shaft 2 received.

The present invention has been described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides an automatic regulation formula back of chair skeleton, includes the back of the chair frame, its characterized in that, still including propping waist frame, drive shaft and motor, the drive shaft rotates to be connected the lower part of back of the chair frame, the motor connect in be used for the drive on the back of the chair frame the drive shaft is rotatory, prop waist put up connect in the middle part of back of the chair frame, the front side that props waist frame is equipped with elastic component, elastic component's front side is connected with the cable, the cable passes in proper order elastic component with prop waist frame and with the drive shaft is connected.

2. The automatic adjusting chair back framework as claimed in claim 1, wherein the lumbar support frame comprises a vertical plate and a horizontal plate, the vertical plate is vertically connected to the middle of the chair back frame, the horizontal plate is transversely connected to the middle of the vertical plate, the elastic assembly is located on the horizontal plate, and a through hole for the stay cable to pass through is formed in the horizontal plate.

3. The automatically adjusting chair back frame as claimed in claim 2, wherein the resilient assembly comprises a plurality of springs arranged linearly, the axial direction of the springs is perpendicular to the cross plate, the rear sides of the springs are fixed to the cross plate, and the pull cables are connected to the front sides of the springs.

4. The automatically adjusting back frame of claim 3, wherein a stop is welded to the front side of the spring, the stop is parallel to the front end face of the spring, and the pull cable is connected to the middle of the stop.

5. The automatic adjusting chair back framework as claimed in any one of claims 2 to 4, wherein a wire groove is formed on the rear side wall of the lumbar support frame, and the wire groove is communicated with the through hole.

6. The automatic adjusting chair back framework as claimed in claim 5, wherein a wire guide hole is vertically arranged at the lower part of the vertical plate for a pull cable to pass through, the upper end of the wire guide hole is communicated with the wire groove, and the lower end of the wire guide hole is opposite to the middle part of the driving shaft.

7. The automatically adjusting back frame as claimed in any one of claims 1 to 4, further comprising a seat cushion, wherein the seat cushion is laid in front of the lumbar support frame.