COMPOSITE CHAIR
A composite chair adapted for permitting a user to sit thereon. The composite chair includes a base unit and a seat unit. The seat unit includes a seat body that is mounted on the base unit and that is adapted for supporting the user's buttocks, and a pushing member that is fixedly mounted on a rear end of the seat body. The seat body is pivotable relative to the base unit for inclining the pushing member to push the user' s waist forward.
1. Field of the Invention
The invention relates to a chair, more particularly to a composite chair.
2. Description of the Related Art
Modern people value the quality of life, which is reflected in their requirements for daily utilities. These utilities must not only provide better performance but also aid in health. Taking chairs for example, most modern chairs are designed with a backrest to support a user's back. Unfortunately, most backrests are plate-shaped and tend to cause discomfort and lead to posture problems.
In view of this, vendors began developing ergonomic chairs similar to the conventional chair 1 shown in
However, even though the conventional chair 1 provides more comfort, it fails to provide support to the user's remaining body parts. In addition, most users such as office workers remain seated for an extended period of time without exercise, causing posture problems that affect health. Therefore, there is room for improvement regarding the functionality of the conventional chair 1.
SUMMARY OF THE INVENTIONTherefore, the object of the present invention is to provide a composite chair that can eliminate the aforesaid drawbacks of the prior art.
According to the present invention, there is provided a composite chair adapted for permitting a user to seat thereon. The composite chair includes a base unit and a seat unit. The seat unit includes a seat body and a pushing member. The seat body is mounted on the base unit and is adapted for supporting the user's buttocks. The pushing member is fixedly mounted on a rear end of the seat body. The seat body is pivotable relative to the base unit for inclining the pushing member to push the user's waist forward.
Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiment with reference to the accompanying drawings, of which:
Referring to
The base unit 2 includes two front legs 21 spacedly disposed, two rear legs 22 (only one can be seen) spacedly disposed, a connecting plate 23 interconnecting the front and rear legs 21, 22, and a top board 24 interconnecting the front legs 21 and disposed below the shifting device 4.
The seat unit 3 includes a seat body 31 and a pushing member 32. The seat body 31 is mounted on the base unit 2 and is adapted for supporting the buttocks of the user 9. The pushing member 32 is fixedly mounted on a rear end of the seat body 31. The seat body 31 is pivotable relative to the base unit 2 for inclining the pushing member 32 to push the waist of the user 9 forward. The seat unit 3 further includes a first power source 33 and a first driving member 34 that are mounted on the connecting plate 23. The first driving member 34 drives a pivoting motion of the seat body 31 while the first power source 33 provides power to the first driving member 34. In this embodiment, the first driving member 34 is a cam; by controlling the rotation of the cam, the seat body 31 can be disposed horizontally (see
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When the first driving member 34 rotates back to the position shown in
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In sum, in the composite chair of this invention, through the pivoting of the seat body 31 of the seat unit 3 relative to the base unit 2, the pushing member 32 will push the waist and hips of the user 9 and the pushing effect is enhanced due to the inverted trapezoid shape (which corresponds to the shape of the pelvis) of the pushing member 32. The inflatable members 61 of the inflatable unit 6 can be inflated to push and support the back of the user 9 to raise the chest of the user 9 up and forward, thus stretching the back and abdominal muscles of the user 9 and strengthening the core of the user 9. Moreover, each of the seat unit 3, the shifting device 4, the backrest unit 5, the inflatable unit 6 and the armrest unit 7 can be operated independently, allowing the user 9 to train and/or rehabilitate the muscle group of a designated body portion according to the needs of the user 9. Therefore, the purpose of this invention is served.
While the present invention has been described in connection with what is considered the most practical and preferred embodiment, it is understood that this invention is not limited to the disclosed embodiment but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.
Claims
1. A composite chair adapted for permitting a user to sit thereon, said composite chair comprising:
- a base unit; and
- a seat unit including a seat body that is mounted on said base unit and that is adapted for supporting the user's buttocks, and a pushing member that is fixedly mounted on a rear end of said seat body, said seat body being pivotable relative to said base unit for inclining said pushing member to push the user's waist forward.
2. The composite chair as claimed in claim 1, further comprising a shifting device that is mounted on said base unit, that is disposed in front of said seat unit, and that includes two support units adapted for respectively supporting the user's thighs and movable relative to said base unit between a retracted position, where said support units are close to each other, and an expanded position, where said support units are away from each other.
3. The composite chair as claimed in claim 1, further comprising a backrest unit that is mounted on said base unit and that is pivotable in a front-rear direction relative to said base unit for moving the user's back.
4. The composite chair as claimed in claim 3, further comprising an inflatable unit that is mounted on aside of said backrest unit, that faces the user, and that is inflatable for supporting the user's back.
5. The composite chair as claimed in claim 4, further comprising an armrest unit that is mounted on said backrest unit, that is vertically movable relative to said backrest unit and that is adapted for supporting the user's arms.
6. The composite chair as claimed in claim 5, wherein said armrest unit includes
- a connecting member that is mounted on said backrest unit and that is vertically movable relative to said backrest unit, and
- two armrest members that are respectively and pivotally connected to left and right ends of said connecting member and that are horizontally pivotable relative to said connecting member.
7. The composite chair as claimed in claim 1, wherein:
- said base unit includes two front legs that are spacedly disposed, two rear legs that are spacedly disposed, and a connecting plate that interconnects said front and rear legs and that is disposed below said seat body of said seat unit; and
- said seat unit further including a driving member mounted on said connecting plate for driving a pivoting motion of said seat body, and a power source mounted on said connecting plate for providing power to said driving member.
8. The composite chair as claimed in claim 2, wherein said base unit further includes a top board interconnecting said front legs and disposed below said shifting device, said top board being formed with two arcuate slide grooves that are spaced apart from each other, each of said support units of said shifting device including a support plate, and a limiting member that protrudes downward from said support plate for engaging slidably a respective one of said slide grooves, such that said support units are movable relative to said base unit between the retracted position and the expanded position.
9. The composite chair as claimed in claim 3, wherein said backrest unit includes
- a driving member that is pivotally mounted between said rear legs,
- a back board that is mounted on said driving member, and
- a power source that is mounted on said base unit for providing power to said driving member.
10. The composite chair as claimed in claim 6, wherein said armrest unit further includes
- two driving members spacedly mounted on said back board of said backrest unit for controlling movement of said connecting member in a top-bottom direction, and
- a power source for providing power to said driving members.
11. The composite chair as claimed in claim 10, wherein said back board of said backrest unit is formed with two concave receiving portions facing the user's back, said inflatable unit including two inflatable members, each of which is received in a respective one of said receiving portions, and an inflating-deflating component which is mounted on said back board for inflating/deflating said inflatable members.
12. The composite chair as claimed in claim 1, wherein said pushing member of said seat unit has an inverted trapezoid shape
Type: Application
Filed: Dec 27, 2013
Publication Date: Jul 2, 2015
Inventors: Hong-Yuan CHANG (Kaohsiung City), Yao-Yuan ZENG (Kaohsiung City), Yao-Wen ZENG (Kaohsiung City)
Application Number: 14/142,217