TW202200049A - Supporting structure of seat back recliner - Google Patents

Abstract

The invention relates to a supporting structure of a seat back recliner. Primarily, a main body and an upper end of two supports are provided with mutually pivoted joints. Furthermore, a lower end of the main body is connected with each of the two supports by a swing arm. Thereby when a user leans back against the main body backwardly, the main body uses an upper pivot point of the support as a rotation point, so that the main body forms a tilt angle. By the traction limit between the lower end of the main body and the swing arm of the support, the main body can maintain a proper reclining angle, so that the user can lie on the main body safely. An elastic section provided on each of two rods at two sides of the main body can make the main body fit and support the user’s waist and back when the user lies on the main body to facilitate sitting comfort.

Description

Backrest Tilt Support Structure

The present invention relates to a seat back tilting support structure, in particular to a seat that can easily adjust the seat back to a desired tilt angle, and can be attached to the user's waist and back to facilitate riding comfort. back structure.

Press, chairs are the necessities of people's daily life. When people sit on the chairs, they usually lean their backs on the backs of the chairs. However, the basic angle of the existing chair backs is unchanged, so it is impossible to provide users with lying on their backs. support.

However, for users who often have to sit on a chair for a long time to do work, in addition to the basic sitting and resting function, the need for a reclining function is also increasing. Adjust the back of the chair to the desired tilt angle, and use it to rest on the back of the chair, so the angle adjustment of the back of the chair is a necessary function. Furthermore, most of the existing chair backs are rigid backboards that lack elasticity. Therefore, when the user leans against the chair back, the user's back is not only easy to feel pain and discomfort, but also it is difficult for the back to stick to the chair back for a long time. It is easy to cause back pain when riding.

The reason is that the inventors of the present invention, in view of the fact that the existing seat back structure of the chair still has the above-mentioned deficiencies in the use and implementation, relying on the assistance of its many years of manufacturing and design experience and knowledge in related fields, and through many ingenuity, research and development. invented the present invention.

The present invention relates to a seat back tilting support structure, the main purpose of which is to provide a seat back that can be easily adjusted to a desired tilt angle, and can be attached to the user's waist and back, so as to facilitate riding Seat back structure for comfort.

In order to achieve the above-mentioned implementation purpose, the present inventor has developed the following seat back tilting support structure, which includes:

At least one seat back bracket is provided with a first pivot portion at the upper end of the seat back bracket, and the seat back bracket is provided with a first pivot portion below the first pivot portion, and the first pivot portion is pivotally connected with one end of a swing arm;

A seat back main body includes two first rod parts which are vertically set up opposite left and right, and a second rod part and a third rod part which are set up and down horizontally opposite to each other, and make the second rod part and the The two ends of the third rod portion are respectively connected with the two first rod portions, and a hollow section is formed between the two first rod sections, the second rod section and the third rod section. A fourth rod part is provided, and the two ends of the fourth rod part are respectively connected with the two first rod parts, and at least one second screwing part is arranged on the fourth rod part to connect with the at least one The first pivoting part on the seatback bracket is pivoted through a rotating shaft, and at least one second pivoting part is arranged on the third rod part to be connected with the other end of the swing arm on the at least one seatback bracket to connect with each other. A pivot shaft is pivotally connected, and an elastic section is formed on each of the two first rod parts, and the elastic section of the two first rod parts is located between the third rod part and the fourth rod part.

The above-mentioned seatback tilting support structure, wherein the two first rods of the seatback main body are each formed with a downwardly inclined section from the upper edge thereof, and a downwardly inclined section from the lower edge thereof an upwardly inclined section, and the elastic section is connected between the downwardly inclined section and the upwardly inclined section.

In the above-mentioned seat back tilting support structure, the elastic section of the first rod portion of the seat back main body is formed with a plurality of slits along the length direction thereof.

The seatback tilting support structure as described above, wherein, the seatback tilting support structure includes two seatback brackets, so that the upper ends of the two seatback brackets are respectively provided with the first rotating part, and the two seatback brackets are provided with The seat back bracket is provided with a first pivot part at the lower part of the first screw connection part to be pivotally connected with one end of a swing arm, and two second pivot parts are arranged on the fourth rod part of the seat back main body. The swivel portion is pivotally connected to the first swivel portion of the two seatback brackets through a pivot shaft, and the third rod portion is provided with two second pivot portions to be respectively connected with the two The other ends of the two swing arms pivotally connected to the seat back bracket are pivotally connected through one of the pivot shafts.

Thereby, when the user is leaning on the seat back body of the present invention and leans back, the seat back body system will take the pivot joint of the upper end of the seat back bracket as the rotation point, so that the seat back body forms a tilt angle, And use the traction limit of the swing arm between the lower end of the seatback body and the seatback bracket, so that the seatback body can maintain a proper tilt angle, so that the user can safely lie on the seatback body, and use the seatback body The elastic sections provided on the two side rods can make the seat back body adhere and support the user's lower back when the user is lying on the seat back body, so as to facilitate the riding comfort.

In order to make the technical means of the present invention and the effects that can be achieved, more complete and clear disclosure, the detailed description is as follows, please refer to the disclosed drawings and drawing numbers together:

First, please refer to the first figure, which is the seat back tilting support structure of the present invention, which mainly includes:

At least one seatback bracket (1), the present invention is provided with two opposite seatback brackets (1) on the left and right, and a first screwing part (11) is arranged on the upper end of the seatback bracket (1), so that the The seat back bracket (1) is provided with a first pivot portion (12) at an appropriate position below the first pivot portion (11), and the first pivot portion (12) is connected to one end of a swing arm (13). pivot;

A seat back main body (2), comprising two first rod parts (21) which are oppositely and longitudinally set up on the left and right, and a second rod part (22) and a third rod part which are set up horizontally on the upper and lower sides. (23), and connect the two ends of the second rod part (22) and the third rod part (23) with the two first rod parts (21) respectively, and connect the two first rod parts (21) with the two first rod parts (21). A hollow space (24) is formed between the second rod portion (22) and the third rod portion (23), and a fourth rod portion (25) is transversely arranged in the hollow space (24), so that the first rod portion (25) is formed. The two ends of the four rod parts (25) are respectively connected with the two first rod parts (21), and at least one second screw connection part (251) is arranged on the fourth rod part (25). The fourth rod portion (25) is provided with two left and right opposite second screwing portions (251), which are respectively connected with the first screwing portions (11) of the two seatback brackets (1) by a rotation axis. (14) Through the pivot connection, the third rod portion (23) is provided with at least one second pivot portion (231). The two second pivot parts (231) are pivotally connected to the other ends of the two swing arms (13) pivotally connected with the two seatback brackets (1) respectively through a pivot shaft (15), and the two second pivots (15) Each of the rods (21) is formed with a downwardly inclined section (211) gradually inclined downward from the upper edge thereof, and an upwardly upwardly inclined section (212) gradually inclined from its lower edge, and the downwardly inclined section (212) is formed. 211) and the upwardly inclined section (212) are connected by an elastic section (213), and the elastic section (213) is set up as an arc, and the elastic sections (213) of the two first rod parts (21) are formed It is located between the third rod portion (23) and the fourth rod portion (25), and the elastic section (213) is formed with a number of slits (214) along its length, so that the elastic section (213) can be The slits (214) create elasticity.

Accordingly, when the assembly is carried out, please refer to the second figure, make the seat back main body (2) in front of the seat back bracket (1), and make the seat back main body (2) its fourth rod The two second swivel parts (251) provided on the part (25) are respectively pivotally connected with the first swivel parts (11) on the upper ends of the two seat back brackets (1) through the rotating shaft (14), so that the The two second pivot parts (231) provided on the third rod part (23) of the seat back main body (2) and the first pivot parts (12) of the two seat back brackets (1) are respectively connected with a swing arm (13) The pivot shaft (15) is threaded through the pivot connection.

Therefore, please also refer to the third figure, when the user sits on the chair (3) assembled with the seat back structure of the present invention, leans his back against the seat back main body (2) and leans back , please also refer to the fourth figure, the seat back main body (2) uses its fourth rod portion (25) and the upper end of the seat back bracket (1) pivot point as a pivot point, and the seat back main body (2) ) With the backrest force exerted by the user, the required inclination angle is presented. Please refer to the fifth figure together. The swing arm (13) is pivotally connected between (1), which can generate a traction limit function for the seat back body (2), so that the seat back body (2) can maintain a proper tilt angle, so as to ensure the safety of the user. Lie on the back body (2).

In addition, by utilizing the design of the elastic sections (213) of the two first rod portions (21) of the seatback body (2), the seatback body (2) can produce moderate elastic deformation along with the backrest strength of the user, In this way, no matter what the inclination angle of the user is, the lower back of the user can be completely abutted on the seat back main body (2), so as to obtain a comfortable support effect and avoid the user sitting on the chair (3) for a long time. Back pain is prone to occur.

The foregoing embodiments or drawings do not limit the implementation of the seat back tilting support structure of the present invention, and any appropriate changes or modifications made by those with ordinary knowledge in the technical field should be regarded as not departing from the scope of the present invention.

As can be seen from the above structure and implementation, the present invention has the following advantages:

1. The seatback tilting support structure of the present invention is pivotally connected between the seatback main body and the seatback bracket by a rotary joint, thereby enabling the seatback main body to present a desired tilting angle along with the user's backrest strength. In addition, the seat back body and the lower end of the seat back bracket are pivotally connected by a swing arm, and the traction limit function is generated for the seat back body, so that the user can safely lie on the seat back body.

2. The seatback tilting support structure of the present invention is attached to the seatback body and its two side rods each form an elastic segment, so that the seatback body can produce elastic deformation function. The main body of the seat back can be obediently supported on the back of the user, so as to facilitate the riding comfort.

To sum up, the embodiments of the present invention can indeed achieve the expected effects, and the specific structures disclosed have not only not been seen in similar products, but also have not been disclosed before the application, which fully complies with the provisions of the patent law and Request, to file an application for a patent for invention in accordance with the law, and entreat it to be reviewed and granted a patent, then I am truly grateful.

1: Chair back bracket

11: The first screw part

12: The first pivot

13: Swing arm

14: Spindle

15: Pivot

2: The main body of the chair back

21: The first rod

211: Downward Slope

212: Upward slope

213: Elastic segment

214: Trough

22: Second rod

23: Third rod

231: Second pivot

24: Hollow Interval

25: Fourth rod

251: The second screw part

3: Chairs

The first figure: the three-dimensional exploded view of the present invention

The second figure: the perspective view of the present invention

The third figure: the use state diagram of the present invention (1)

The fourth figure: the use state diagram of the present invention (2)

The fifth figure: the use state diagram of the present invention (3)

1: Chair back bracket

11: The first screw part

12: The first pivot

13: Swing arm

14: Spindle

15: Pivot

2: The main body of the chair back

21: The first rod

211: Downward Slope

212: Upward slope

213: Elastic segment

214: Trough

22: Second rod

23: Third rod

231: Second pivot

24: Hollow Interval

25: Fourth rod

251: The second screw part

Claims (4)

A chair back tilting support structure, comprising: At least one seat back bracket is provided with a first pivot portion at the upper end of the seat back bracket, and the seat back bracket is provided with a first pivot portion below the first pivot portion, and the first pivot portion is pivotally connected with one end of a swing arm; A seat back main body includes two first rod parts which are vertically set up opposite left and right, and a second rod part and a third rod part which are set up and down horizontally opposite to each other, and make the second rod part and the The two ends of the third rod portion are respectively connected with the two first rod portions, and a hollow section is formed between the two first rod sections, the second rod section and the third rod section. A fourth rod part is provided, and the two ends of the fourth rod part are respectively connected with the two first rod parts, and at least one second screwing part is arranged on the fourth rod part to connect with the at least one The first pivoting part on the seatback bracket is pivoted through a rotating shaft, and at least one second pivoting part is arranged on the third rod part to be connected with the other end of the swing arm on the at least one seatback bracket to connect with each other. A pivot shaft is pivotally connected, and an elastic section is formed on each of the two first rod parts, and the elastic section of the two first rod parts is located between the third rod part and the fourth rod part. The seatback tilting support structure as claimed in claim 1, wherein the two first rods of the seatback main body are each formed with a downwardly inclined section from the upper edge thereof, and a downwardly inclined section from the lower edge thereof. The upper and upper inclination sections are inclined upward, and the elastic section is connected between the downward inclination section and the upward inclination section. The seatback tilting support structure as claimed in claim 2, wherein the elastic section of the first rod portion of the seatback body is formed with a plurality of slits along the length of the body. The seatback tilting support structure as claimed in claim 1, wherein the seatback tilting support structure comprises two seatback brackets, so that the upper ends of the two seatback brackets are respectively provided with the first rotating part, and The two seat back brackets are respectively provided with a first pivot part below the first rotating part, so as to be pivoted with one end of a swing arm respectively, and two seat back main bodies are provided on the fourth rod part. The second pivoting portion is pivotally connected with the first pivoting portion of the two seatback brackets through a pivot shaft, and the third rod portion is provided with two second pivoting portions to respectively The other ends of the two swing arms pivotally connected with the two seatback brackets are pivotally connected through a pivot shaft.

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