TWI711410B - Twist structure of chair back frame - Google Patents

Abstract

The invention relates to a twist structure of a chair back frame. A chair back frame is formed with two opposite elastic supporting ribs at the left and right sides of its hollow section. Thereby when a user lies on the two elastic supporting ribs of the chair back frame of the present invention, the two elastic supporting ribs of the chair back frame can be twisted along with the left and right twisting of the user's body, so that the chair back frame produces a matching twisting action. Thus when the user twists and stretches his/her body, his/her body’s back can bear against the chair back frame. Accordingly, the comfort and relax effects can be improved when the user sits on the chair.

Description

Back frame twisting structure

The present invention relates to a twisting structure of a chair back frame, in particular to a chair that can produce a matching twisting action with the twisting of the user's body, so that the user's back is pressed against it, and the riding comfort is improved. Back frame structure.

According to the key, the seat is a necessity for people’s daily life. When people ride on the chair, they usually lie their back on the back of the chair; however, if they lie directly on the hard chair backboard, the user’s back is easy to feel pain Discomfort, so some manufacturers install foam and other soft pads on the surface of the hard chair back panel to provide the user's back lying back.

Although the design of assembling soft cushions on the surface of the hard chair back panel can give the chair back a little elasticity, so that when the user’s back lies on the back of the chair, it will not feel hard and uncomfortable, but the elasticity of the soft cushion is limited. The cushion is assembled on the hard chair back panel, so the tilt angle is limited. When the user wants to adjust the sitting posture and twist his body, the existing chair back cannot match the user's body twisting, and a corresponding twisting action is generated , So that when the user twists his body left or right, one side of his back will be far away from the back of the chair and lose its support. Furthermore, because foam and other soft cushions lack air permeability and are not easy to dissipate after absorbing human body heat, when the user lies on the back of the existing chair for a period of time, his back will feel stuffy and sweaty, and it will increase even more. The uncomfortable feeling of sitting on the chair.

The reason is that, in view of the above-mentioned shortcomings in the use of existing chair back designs, the inventors developed the present invention with the assistance of many years of manufacturing and design experience and knowledge in related fields, and through various ingenuities.

The present invention relates to a seat back frame twisting structure. Its main purpose is to provide a matching twisting action that can be twisted with the user's body, so that the user's back can be pressed against it, and the ride can be improved. Comfortable chair back frame structure.

In order to achieve the above-mentioned implementation objectives, the inventor of the present invention developed the following chair back frame twisting structure, which is mainly provided with a flexible chair back frame. The chair back frame includes two left and right sides arranged in a longitudinal direction. A rod portion and a second rod portion, as well as two upper and lower rod portions opposite to each other, a third rod portion and a fourth rod portion are arranged transversely, and the two ends of the third rod portion and the fourth rod portion are respectively connected to the first rod portion A rod part and a second rod part are connected at two ends, and a hollow space is formed between the first rod part, the second rod part, the third rod part and the fourth rod part, and the seat back frame Two opposite elastic abutment ribs are integrally formed on the left and right sides of the hollow space respectively. The two elastic abutment ribs are defined as a first elastic abutment rib and a second elastic abutment rib, so that the The upper and lower ends of the first elastic abutting rib are respectively connected with the upper and lower edges of the first rod, and the upper and lower ends of the second elastic abutting rib are connected to the second rod respectively. The upper edge and the lower edge are connected, so that the first elastic abutting rib and the second elastic abutting rib are located at the left and right sides of the hollow space, and the first rod and the second rod are located at the A section between the upper and lower ends of the first elastic abutting rib and the second elastic abutting rib forms a supporting section of the first elastic abutting rib and the second elastic abutting rib, respectively.

The above-mentioned chair back frame twisting structure, wherein the two elastic abutting ribs of the chair back frame are set up in a gradually inclined arc relative to the center of the hollow section, so that the two elastic abutting ribs are curved .

The torsion structure of the seat back frame as described above, wherein the first elastic abutting rib includes a first downward-inclined section that gradually inclines from the upper edge of the first rod portion toward the center of the hollow space, and One by The lower edge of the first rod portion gradually inclines toward the center of the hollow section and a first upward incline section is upward, and a first upward incline section is connected between the first downward incline section and the first upward incline section, and goes to the center of the hollow section A first curved section set up by a directional arc, and the second elastic abutting rib system includes a second down-inclined section that gradually inclines from the upper edge of the second rod to the center of the hollow section, and A second upward-inclined section that gradually slopes upward from the lower edge of the second rod portion toward the center of the hollowed-out section, and a second upwardly inclined section connected between the second down-inclined section and the second upwardly inclined section, and goes to the hollowed section The second bending section set up by arc protrusion in the central direction.

The above-mentioned seat back frame twisting structure, wherein the seat back frame is provided with a reinforcing rib below the first elastic abutting rib and the second elastic abutting rib, so that the reinforcing rib is horizontally arranged in the hollow The two ends of the reinforcing rib are respectively connected to the first rod portion and the second rod portion, and the bottom ends of the first elastic abutting rib and the second elastic abutting rib are respectively connected to the reinforcing rib.

The torsion structure of the seat back frame as described above, wherein the back of the seat back frame is attached to the first elastic abutting rib, the second elastic abutting rib and the third rod part are respectively formed along the length of the back Inlay the groove, and make the back frame twisting structure further include a back cover, so that the back cover covers the back frame, and the left and right sides of the back cover pass through the first rod And the supporting section of the second rod portion, and extend to the back of the first elastic abutting rib and the second elastic abutting rib, so as to be respectively embedded with the back of the first elastic abutting rib and the second elastic abutting rib The groove is correspondingly fitted, and the upper side of the seat back cover is extended to the back of the third rod part so as to correspond to the inlaid groove on the back of the third rod part, and the bottom side of the seat back cover is extended to the back frame At the bottom edge of the reinforcing rib.

The above-mentioned seat back frame twisting structure, wherein the seat back frame is connected to the center of the front side of the fourth rod part and has a seat assembly part extending continuously.

The seat back frame twisting structure as described above, wherein the seat back frame is formed on the back of the two elastic abutting ribs to form an inlay groove along its length, and the seat back frame twisting structure is further A chair back cover is included, and the chair back cover is wrapped on the chair back frame, and the left and right sides of the chair back cover are respectively engaged with the inlay grooves on the back of the two elastic abutting ribs.

The above-mentioned chair back frame twisting structure, wherein the chair back frame twisting structure further includes a chair back cover, and the chair back cover is wrapped on the chair back frame.

The twisting structure of the seat back frame as described above, wherein the seat back cover is a net cover or a cloth cover.

Thereby, by using the structure design of the back frame of the present invention, the user can lie on the two elastic abutment ribs of the back frame of the present invention, and the back frame can follow the left side of the user’s body. , Twist right to produce a matching twisting action, so that when the user twists and stretches the body, the back of the body can be satisfactorily leaned against the back frame of the chair, thereby improving the user’s performance when riding the chair Comfortable and relaxing effect.

1: Chair back frame

11: The first pole

111: Support section

12: second pole

121: Support section

13: third pole

131: Third inlay

14: Fourth pole

141: Chair seat assembly department

15: hollow interval

16: first elastic abutment rib

161: The first downward dip

162: The first updip section

163: The first bending section

164: The first inlay

17: Second elastic abutment rib

171: The second downward dip

172: second upward incline

173: second bending section

174: second inlay

18: reinforcement ribs

2: Chair back cover

Figure 1: Front perspective view of the present invention

Figure 2: Rear perspective view of the present invention

Figure 3: A top sectional view of the present invention

Figure 4: A perspective view of the present invention in use

Figure 5: A top sectional view of the present invention in use

In order to enable the technical means of the present invention and the effects it can achieve to have a more complete and clear disclosure, the detailed description is as follows, please refer to the disclosure drawings and figure numbers together:

First of all, please refer to the first and second figures, which are the seat back frame twisting structure of the present invention, which is mainly provided with a seat back frame (1), and the chair back frame (1) is made flexible. The material of the back frame (1) can be polypropylene, so that the seat back frame (1) includes two left and right sides arranged longitudinally, a first rod part (11) and a second rod part (12), and A third rod part (13) and a fourth rod part (14) are set up and down relative to each other, and the two ends of the third rod part (13) and the fourth rod part (14) are connected to the The two ends of the first rod (11) and the second rod (12) are connected, and in the The first rod part (11), the second rod part (12), the third rod part (13) and the fourth rod part (14) are surrounded to form a hollow space (15), and the fourth rod part ( 14) There is a seat assembly (141) extending from the center of the front side, and the seat back frame (1) is integrally formed on the left and right sides of the hollow space (11) with two opposite first elastic abutments Rib (16) and a second elastic abutting rib (17), the first elastic abutting rib (16) includes a direction from the upper edge of the first rod portion (11) to the center of the hollow section (15) A first downward-inclined section (161) that gradually inclines downward, and a first upward-inclined section (161) that gradually inclines upward from the lower edge of the first rod portion (11) toward the center of the hollow section (15) 162), and a first curved section (163) connected between the first downward-inclined section (161) and the first upward-inclined section (162) and arc-protrudingly established toward the center of the hollow section (15), In addition, the second elastic abutting rib (17) includes a second downwardly inclined section (171) that gradually inclines from the upper edge of the second rod portion (12) toward the center of the hollow section (15). , And a second upward-inclined section (172) that gradually inclines from the lower edge of the second rod portion (12) toward the center of the hollow space (15), and a second upward-inclined section (172) connected to the second downward-inclined section ( 171) and the second upward-inclined section (172), and the second curved section (173) arc protruding to the center of the hollow section (15), so that the first elastic abutment against the rib (16) and the second The elastic abutting rib (17) is in the shape of a curved arc that is set up in a gradually inclined arc relative to the center of the hollow section (15). The first rod portion (11) and the second rod portion (12) are located in the first elastic A section between the upper and lower ends of the abutting rib (16) and the second elastic abutting rib (17) forms the supporting section of the first elastic abutting rib (16) and the second elastic abutting rib (17) (111) and (121). In addition, a reinforcing rib (18) is provided below the first elastic abutting rib (16) and the second elastic abutting rib (17), and the reinforcing rib (18) is arranged horizontally In the hollow section (15), the left and right ends of the reinforcing rib (18) are respectively connected with the first rod portion (11) and the second rod portion (12), and the first elastic abutment The bottom ends of the rib (16) and the second elastic abutment rib (17) are respectively connected to the left and right sides of the reinforcing rib (18); please refer to the third figure together, and a back cover (2) ), the back cover (2) can be formed with multiple meshes The net cover makes the back cover (2) cover the back frame (1), and the left and right sides of the back cover (2) pass through the first rod (11) and the second The supporting sections (111) and (121) of the rod (12) are used to tighten the left and right sides of the seat back cover (2) and then extend to the first elastic abutting rib (16) and the second The back surface of the elastic abutting rib (17) is connected with the first groove (164) and the second groove (164) and the second groove which are provided along the length of the back of the first elastic abutting rib (16) and the second elastic abutting rib (17). The groove (174) is correspondingly fitted, and the upper side of the back cover (2) is extended to the back of the third rod part (13), and the back of the third rod part (13) is formed with a first part along its length. Three inlay grooves (131), and the upper side of the back cover (2) is correspondingly fitted into the third inlay groove (131), and the bottom side of the back cover (2) extends to the back frame (1) ) At the bottom edge of the reinforcing rib (18).

Accordingly, when the user rides on the chair assembly with the back frame (1) of the present invention, and lays his back on the back frame (1), his back can be secured through the back cover (2) It is in contact with the first elastic abutting rib (16) and the second elastic abutting rib (17) of the seat back frame (1). When the user twists and stretches the body, the body is twisted to the right side. The back system will move backward, and its left back will move forward relatively. When the user's right back moves backward, please refer to the fourth and fifth pictures together, the chair back frame (1) The first elastic abutting rib (16) is pressed backwards, at this time, by the third rod portion (13) connected with the first elastic abutting rib (16) and the second elastic abutting rib (17) The second elastic abutting rib (17) of the seat back frame (1) moves relatively forward to fit snugly against the left back of the user’s body, and the first rod (11) And the supporting sections (111) and (121) of the second rod portion (12) support the upper and lower ends of the first elastic abutment rib (16) and the second elastic abutment rib (17), so that the An elastic abutting rib (16) and a second elastic abutting rib (17) maintain a proper amount of elastic deformation without excessive distortion, so as to facilitate the user's back lying comfortably. Furthermore, when the user twists his body to the left, his left back system will move backward, and his right back will move forward relatively. When the user’s left body moves back, the system will move the back of the chair. The second elastic abutment rib (17) of the frame (1) is pressed backward, at this time, by In conjunction with the third rod portion (13) connected to the first elastic abutting rib (16) and the second elastic abutting rib (17), the first elastic abutting rib (16) of the back frame (1) The system will move relatively forward to fit against the right back of the user’s body. According to this, the seat back frame (1) of the present invention can be twisted with the user’s body to produce a corresponding torsion elastic design to make When the user rides on the chair to twist and stretch his body, the back of his body can maintain the state of being fit against the back frame (1) of the chair.

In addition, when the user’s back is lying on the back frame (1) of the present invention, the body heat can pass through the mesh holes provided on the back cover (2) which is a net cover, and then through the back frame (1) The hollow space (15) is discharged out to provide the user with comfortable and breathable effect when lying on the back frame (1) of the present invention, avoiding that the back is immediately after lying on the back of the existing chair for a period of time Sultry and sweating.

The foregoing embodiments or drawings do not limit the implementation of the twisting structure of the seat back frame of the present invention. The seat back cover (2) of the present invention can be a net cover or a cloth cover. The cloth cover is The inner surface of a cloth is composed of a thin layer of foam. Any appropriate change or modification by a person with ordinary knowledge in the technical field should be regarded as not departing from the patent category of the present invention.

It can be seen from the above structure and implementation that the present invention has the following advantages:

1. The twisting structure of the seat back frame of the present invention is such that the left and right sides of the hollow section of the seat back frame are formed with two first elastic abutment ribs and a second elastic abutment that are gradually inclined to the center. Leaning ribs, whereby when the user lies on the back frame of the present invention and twists his body, the present invention can generate a corresponding twisting action, so that the user’s back can maintain a comfortable fit and rest against The seat back state improves the relaxation effect when riding the chair.

2. The twisting structure of the back frame of the present invention can be covered with a back cover that is a mesh cover on the outside of the back frame. Here, when the user lies on the present invention, the body heat can pass through the net The mesh holes of the cover are discharged through the hollow section of the seat back frame to improve the comfort and breathability of the user when riding the chair.

3. The torsion structure of the seat back frame of the present invention is such that the first rod and the second rod are located on the first elastic abutting rib and the second elastic abutting rib. A section between the upper and lower ends of the first elastic abutting rib forms its support section To support The setting of the bracing section can not only allow the left and right sides of the back cover to be tightened and shaped, but also can maintain the proper elastic deformation when the first elastic abutting rib and the second elastic abutting rib are pressed against The comfort of lying on the user's back.

In summary, the embodiments of the present invention can indeed achieve the expected effects, and the specific structure disclosed by it has not been seen in similar products, nor has it been disclosed before the application. It is in full compliance with the provisions of the Patent Law and Requirement, Yan filed an application for a patent for invention in accordance with the law, and pleaded for favor of examination, and granted a patent, it would be more virtuous.

1: Chair back frame

11: The first pole

111: Support section

12: second pole

121: Support section

13: third pole

14: Fourth pole

141: Chair seat assembly department

15: hollow interval

16: first elastic abutment rib

161: The first downward dip

162: The first updip section

163: The first bending section

17: Second elastic abutment rib

171: The second downward dip

172: second upward incline

173: second bending section

18: reinforcement ribs

2: Chair back cover

Claims (9)

A torsion structure of a chair back frame is mainly provided with a flexible chair back frame. The chair back frame includes two left and right oppositely arranged longitudinally, a first rod part and a second rod part, and two A third rod part and a fourth rod part are set up and down oppositely and horizontally, and the two ends of the third rod part and the fourth rod part are respectively connected with the two ends of the first rod part and the second rod part , And the first rod part, the second rod part, the third rod part and the fourth rod part are enclosed to form a hollow section, and the seat back frame is integrated on the left and right sides of the hollow section respectively Two opposite elastic abutting ribs are formed. The two elastic abutting ribs are defined as a first elastic abutting rib and a second elastic abutting rib, so that the first elastic abutting rib has its upper and lower ends Are respectively connected with the upper and lower edges of the first rod, and the upper and lower ends of the second elastic abutting rib are respectively connected with the upper and lower edges of the second rod, so that the The first elastic abutting rib and the second elastic abutting rib are located on the left and right sides of the hollow space, and the first and second rod portions are located at the first and second elastic abutting ribs A section between the upper and lower ends of the rib respectively forms a supporting section of the first elastic abutting rib and the second elastic abutting rib. The torsion structure of the seat back frame according to claim 1, wherein the two elastic abutting ribs of the seat back frame are set up in a gradually inclined arc relative to the center of the hollow section, so that the two elastic abutting ribs are formed Curved. The torsion structure of the seat back frame according to claim 1, wherein the first elastic abutting rib includes a first downward tilt from the upper edge of the first rod portion toward the center of the hollow space Section, and a first upward-inclined section that gradually inclines upward from the lower edge of the first rod portion toward the center of the hollow section, and a first upward-inclined section connected between the first downward-inclined section and the first upward-inclined section, and A first curved section arc protruding toward the center of the hollowed-out section, and the second elastic abutting rib includes a second one that is gradually inclined from the upper edge of the second rod to the center of the hollowed-out section. under Inclined section, and a second upwardly inclined section that gradually inclines upward from the lower edge of the second rod to the center of the hollow section, and a second upwardly inclined section connected between the second downwardly inclined section and the second upwardly inclined section, and The second curved section arc protruding to the center of the hollow section. The seat back frame twisting structure according to claim 1, wherein the seat back frame is provided with a reinforcing rib below the first elastic abutting rib and the second elastic abutting rib, so that the reinforcing rib is arranged horizontally In the hollow space, the two ends of the reinforcing rib are respectively connected to the first rod portion and the second rod portion, and the bottom ends of the first elastic abutting rib and the second elastic abutting rib are respectively connected to the reinforcing rib rib. The torsion structure of the seat back frame according to claim 4, wherein the back of the seat back frame is attached to the first elastic abutting rib, the second elastic abutting rib, and the third rod, respectively, formed with a longitudinal direction The inlay groove also makes the back frame twisting structure further include a back cover, so that the back cover covers the back frame, and the left and right sides of the back cover pass through the first back cover The supporting section of a rod portion and a second rod portion extends to the back of the first elastic abutting rib and the second elastic abutting rib, so as to connect with the first elastic abutting rib and the second elastic abutting rib, respectively The inlay groove on the back is correspondingly fitted, and the upper side of the seat back cover is extended to the back of the third rod portion so as to be correspondingly fitted with the inlay groove on the back of the third rod portion, and the bottom side of the back cover is extended to the At the bottom edge of the reinforcing rib of the back frame. The torsion structure of the seat back frame according to claim 1, wherein the seat back frame is connected to the center of the front side of the fourth rod part and has a seat assembly part extending continuously. The seat back frame twisting structure according to claim 1, wherein the back of the seat back frame is formed on the back of the two elastic abutting ribs with an inlay groove along the length of the seat back frame, and the seat back frame is twisted The movable structure further includes a seat back cover for covering the seat back frame, and the left and right sides of the seat back cover are respectively engaged with the inlay grooves on the back of the two elastic abutting ribs. The chair back frame twisting structure according to claim 1, wherein the chair back frame twisting structure further includes a chair back cover, and the chair back cover covers the chair back frame. The seat back frame twisting structure according to claim 8, wherein the seat back cover is a net cover or a cloth cover.

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