TWM458878U - Chair structure - Google Patents

Description

Chair structure

This creation is about a chair structure, especially a chair structure with a forward tilting function and a limited forward tilting angle.

According to the common office chair on the market, the structure, shape, materials or ergonomics have made great progress for the masses of consumers to use. The function includes a pneumatic bar for lifting and lowering to adjust the height of the chair. Or a resilient backrest with a suitable backward tilt, or an elastic structure to allow the seat cushion to be tilted backward, and the chair has a rearward tilting structure. As shown in FIG. 5, the seat rod 41 of the chair member 40 is coupled to a support base 42. Further, the support base 42 is pivotally connected with a bottom pad 44 by a shaft 43 and locked by the bottom pad 44 to the seat cushion 45, thereby allowing the seat rod 41 to erect the seat cushion 45 to form a rideable state, and An elastic device 46 is coupled between the support base 42 and the bottom pad 44, and the elastic device 46 is located on the side of the seat cushion 45 relatively far away from the seat back 47, so that the user can apply the rearward force between the support base 42 and the bottom pad 44. It is post-tilted and its function is designed for long-term use, rest, stretching or adjustment of sitting posture.

Looking at the above-mentioned conventional structure is not difficult to find that there are still some shortcomings. The main reasons are as follows:

(1) Although the backrest of the seat cushion 45 can further improve the comfort, the conventional chair member 40 does not have the auxiliary user to stand up from the seat cushion 45, because the user's thigh and the calf are clamped during riding. Will be equal to or less than ninety degrees, resulting in the need to exert more strength to prop up the body, and the force is easy to concentrate on the user's knee, making the knee vulnerable to injury, this situation is more obvious for the elderly with less strength, is Therefore, there is a lack of practicality.

(2) If the chair member 40 can be tilted forward, since the forward tilt angle is not limited, there will be an excessive forward tilting condition, so that the user can easily fall off by the seat cushion 45, and not only the user is lost. The face is even more likely to fall and hurt the body, so there is a lack of stability.

In view of this, the creator has been engaged in the manufacturing development and design experience of related products for many years. After detailed design and careful evaluation, the author has finally achieved a practical and practical creation.

The technical problem to be solved by the present invention is to provide a chair structure in view of the above-mentioned shortcomings existing in the prior art.

A seat base is formed with a flat plate and is locked on the bottom surface of the seat cushion by a flat plate. The seat base is bent on one side of the flat plate with a wing piece, and the upper shaft hole is opened at the wing piece, and the seat base is adjacent to the seat back. A through hole is formed in the flat plate, and a bolt is formed in the through hole. A support body is formed with a plate body, and a fixing hole is formed at one end of the plate body for connecting the chair pole, and both sides of the plate body are A body is bent toward the base of the chair, and a lower shaft hole is opened in the body, and a shaft is passed through the upper shaft hole and the lower shaft hole to form a pivotal connection between the seat base and the support base, and the plate body is fixed to the fixing hole. The other end of the plate is provided with a through hole, and the bolt is provided by the through hole, and the bolt is fixed with an elastic member on the side of the plate body. The elastic member is covered with a spring by an inner casing and an outer casing, and the seat base and the support base are The relative pivoting can control the inner casing and the outer casing to press the spring, and the plate body extends to the seat base at the fixing hole end with a stopping member, the stopping member and the plate body are integrally formed, or the stopping member is fixed to the plate by welding body.

The first main purpose of the present invention is that the seat base and the support base are pivotally connected with the shaft, and an elastic member is coupled between the seat base and the support base. When the seat base is assembled on the bottom surface of the seat cushion, the elasticity is The piece is located adjacent to the back of the chair, so that the user can lean forward through the seat cushion to make the angle between the thigh and the lower leg more than ninety degrees, so that the user can more easily exert the force to stand up from the seat cushion, and further protect the knee of the user. The effect, especially for the elderly with less strength, is more effective, so as to improve their practicality.

The second main purpose of the present invention is that the support seat is provided with a stopper at the fixing hole end of the plate body, and the stopper extends toward the flat end of the chair base, and the stopper is when the seat base is tilted forward. It will resist the flat plate, so that the seat base can not form a larger forward tilt angle, thereby preventing the seat cushion from being excessively tilted forward, and the user may accidentally slide the seat cushion to improve the stability of use.

Other objects, advantages and novel features of the present invention will become more apparent from the detailed description and the accompanying drawings.

[this creation]

10‧‧‧ Chair base

11‧‧‧ tablet

12‧‧‧ wing

121‧‧‧Upper shaft hole

13‧‧‧through hole

14‧‧‧ bolt

20‧‧‧ support

21‧‧‧ board

22‧‧‧Fixed holes

23‧‧‧Piece

231‧‧‧ lower shaft hole

24‧‧‧ shaft

25‧‧‧Perforation

26‧‧‧stops

30‧‧‧Flexible parts

31‧‧‧ inner shell

32‧‧‧Shell

33‧‧‧ Spring

10A‧‧‧Cushion

10B‧‧‧Back of the chair

20A‧‧‧ Chair pole

[study]

40‧‧‧ Chairs

41‧‧‧ Chair pole

42‧‧‧ Support

43‧‧‧ shaft

44‧‧‧ bottom pad

45‧‧‧chair cushion

46‧‧‧Flexible device

47‧‧‧Back of the chair

The first picture is a three-dimensional diagram of the creation.

Figure 2 is an exploded view of the creation.

Figure 3 is a side cross-sectional view of the present creation.

Figure 4 is a side view of the creation in a forward tilted state.

Figure 5 is a side view of a conventional chair.

In order to enable your review committee to have a better understanding and understanding of the purpose, characteristics and efficacy of this creation, please refer to the following [Simplified Description of the Drawings] for details: First, please see the views shown in Figures 1 and 2. A chair structure includes a chair base 10, a support base 20 and an elastic member 30. A chair base 10 is formed with a flat plate 11 and is locked on the bottom surface of the seat cushion 10A by a flat plate 11, the chair base 10 A fin 12 is bent on both sides of the flat plate 11, and an upper shaft hole 121 is defined in the fin 12, and the through hole 13 is defined in the flat base 11 adjacent to the seat back 10B. A bolt 14 is formed at a position, a support body 20 is formed with a plate body 21, and a fixing hole 22 is formed at one end of the plate body 21 for connecting the chair pole 20A. Both sides of the plate body 21 face the chair base 10 A body 23 is bent, and a lower shaft hole 231 is defined in the body 23, and a shaft 24 is passed through the upper shaft hole 121 and the lower shaft hole 231 to form a pivotal connection between the seat base 10 and the support base 20. The plate body 21 defines a through hole 25 at the other end of the fixing hole 22, and the through hole 25 provides the piercing of the bolt 14, and the bolt 14 An elastic member 30 is fixed on the side of the plate body 21, and the elastic member 30 is covered with a spring 33 by an inner casing 31 and a casing 32, and the relative pivoting of the seat base 10 and the support base 20 can control the inner casing 31 and the outer casing. 32, the pressing spring 33, the plate body 21 extends to the chair base 10 at the end of the fixing hole 22 with a stopping member 26, the stopping member 26 is integrally formed with the plate body 21, or the stopping member 26 is fixed to the plate by welding. The body 21 is formed by the elastic member 30 to form a return elastic force of the chair base 10 and the support base 20, and the member 11 of the seat base 10 is resisted by the stopper member 26, thereby achieving the effect of limiting the forward tilt angle of the seat cushion 10A.

The effect of the actual use, and then viewed from the first figure to the fourth figure, the chair base 10 and the support base 20 are opposed to each other by the flap 12 and the sheet body 23, and then pass through the shaft 24 The upper shaft hole 121 and the lower shaft hole 231 form a pivotal relationship, so that the seat base 10 and the support base 20 can be pivoted The rod 24 is relatively oscillated, and the bolt 14 is inserted through the through hole 13 of the seat base 10 and the through hole 25 of the support base 20, and the elastic member 30 is screwed and fixed to the bolt 14 on the side of the plate body 21, and the elastic member is The inner casing 31 is opposite to the outer casing 32 to cover the spring 33, wherein the inner casing 31 is in contact with the plate body 21, and the bolt 14 is only locked with the outer casing 32, and the seat base 10 is locked by the flat plate 11 The bottom surface of the seat cushion 10A, and the elastic member 30 is disposed on the end of the plate body 21 adjacent to the seat back 10B, and the seat rod 20A is coupled to the fixing hole 22 of the support base 20, and the support effect of the seat cushion 10A is formed by the seat rod 20A. Since the elastic member 30 is fixed to the end of the seat back 10B, the seat cushion 10A can only be inclined toward the front end. When the seat base 10 is inclined forward relative to the support base 20, the plate body 21 can push the inner casing 31 to form a pair of springs. The compression of 33, and the spring 33 elastic force to form the elastic recovery effect of the chair base 10, at this time, the user can tilt the front and the rear of the chair base 10 to make the angle between the thigh and the lower leg greater than ninety degrees, making the user more forceful. Standing up from the seat cushion 10A, it has the effect of protecting the knees of the user, especially the elderly with less strength. Its use effect is more obvious, so as to improve its practicality.

With the structure of the above specific embodiment, the following benefits can be obtained: (1) the seat base 10 and the support base 20 are pivotally connected by the shaft 24, and the elastic member is coupled between the seat base 10 and the support base 20. 30, when the chair base 10 is set on the bottom surface of the seat cushion 10A, the elastic member 30 is located adjacent to the back of the seat 10B, according to which the user can lean forward through the seat cushion 10A to make the angle between the thigh and the lower leg greater than ninety degrees. The user is more likely to exert force to stand up from the seat cushion 10A, and has the effect of protecting the knees of the user, especially the elderly with less strength, and the use effect is more obvious, so as to improve the practicability; (2) the support base The end of the fixing hole 22 of the plate body 21 is provided with a stopping member 26, and the stopping member 26 extends toward the end of the flat plate 11 of the seat base 10. When the seat base 10 is tilted forward, the stopping member 26 will resist In the flat plate 11, the seat base 10 cannot be formed with a larger forward tilt angle, thereby preventing the seat cushion 10A from being excessively tilted forward, and the user may accidentally slide the seat cushion 10A to improve the stability of use.

In summary, this creation has indeed achieved a breakthrough structural design, and has improved new content, while at the same time achieving industrial use and progress, and this creation is not seen in any publication, but also novel, when In accordance with the provisions of the relevant laws and regulations of the Patent Law, a new type of patent application is filed according to law, and the examination authority of the bureau is required to grant legal patent rights.

Only the above-mentioned ones are only preferred embodiments of the present invention, and the scope of the implementation of the present invention cannot be limited thereto; that is, the equal changes of the scope of patent application according to the new patent application. And modifications should remain within the scope of this new patent.

10‧‧‧ Chair base

11‧‧‧ tablet

12‧‧‧ wing

121‧‧‧Upper shaft hole

13‧‧‧through hole

14‧‧‧ bolt

20‧‧‧ support

21‧‧‧ board

22‧‧‧Fixed holes

23‧‧‧Piece

231‧‧‧ lower shaft hole

24‧‧‧ shaft

25‧‧‧Perforation

26‧‧‧stops

30‧‧‧Flexible parts

31‧‧‧ inner shell

32‧‧‧Shell

Claims (4)

A chair structure includes: a chair base formed with a flat plate and locked on a bottom surface of the seat cushion by a flat plate, the seat base is bent with a wing piece on both sides of the flat plate, and the upper shaft is opened at the wing piece a hole, the base of the chair is provided with a through hole at a plate adjacent to the back of the chair, and a bolt is disposed at the through hole; and a support seat is formed with a plate body, and a fixing hole is formed at one end of the plate body The utility model is used for connecting a chair pole, wherein both sides of the plate body are bent with a body toward the seat base, and the bottom of the plate body is provided with a lower shaft hole, and a shaft rod is passed through the upper shaft hole and the lower shaft hole to form a seat base and The pivoting of the support base, the plate body is provided with a perforation at the other end of the fixing hole, the bolt is provided by the through hole, and the bolt is fixed with an elastic member on the side of the plate body, and the plate body is fixed at the end of the fixing hole The base extends with a stopping member, and the elastic member forms a resilient elastic force of the chair base and the supporting seat, and the sliding member is pressed against the flat plate of the seat base to thereby limit the forward tilting angle of the seat cushion. The chair structure according to claim 1, wherein the elastic member is covered with a spring by an inner casing and an outer casing, and the relative pivoting of the seat base and the support base can control the inner casing and the outer casing to press the spring. . The chair structure according to claim 1, wherein the stopper is fixed to the plate body by welding. The chair structure according to claim 1, wherein the stopper is integrally formed with the plate body.