Patent Application
20090066133
1. Field of the Invention
The present invention relates to an adjusting structure, and more particularly to an adjusting structure for use in reclining chairs that the user allows to reduce his movements and force as leaving the seat.
2. Description of the Prior Arts
Generally speaking, a reclining chair is provided to have a comfortable and relax recumbency for users, such as the elder.
For example, a prior art reclining chair always emphasizes its comfort and convenient recumbency function, however, the auxiliary function, e.g., how to leave the seat and then stand up on the ground easily is always neglected. Especially for the older user, they often act slowly and have a poor sense of balance, therefore how to design a reclining chair with comfort recumbency and easy seat-leaving function is an important challenge in the related field.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
The primary object of the present invention is to provide an adjusting structure for use in reclining chairs that the user allows to reduce his movements and force as leaving the seat.
Another object of the present invention is to provide an adjusting structure for use in reclining chairs that the elder who acts slowly may use the reclining chair safely.
In accordance with one aspect of the present invention, there is provided an adjusting structure for use in reclining chairs comprising a reclining chair including a seat, a chairback, two armrests, a pad and a frame, wherein the frame includes a hydraulic cylinder axially disposed on the rear end thereof, and includes two double rodded holders couplingly mounted on two sides thereof respectively, and the front ends of the double rodded holders and two swinging members beneath the seat axially connect with a shaft individually, and each of the double rodded holders includes an offset member affixed on the front end thereof and extending backward for coupling with the bottom of the armrest. Besides, the pad includes two connecting rods attached on two sides thereof individually, and each having two supports secured on the seat and the armrest respectively, the rear sides of the two supports couple with the chairback by using a T-shaped piece, hence as the shaft retracts backward during operation, the armrests displace downwardly with the downward swings of the offset members (the front ends of the double rodded holders swing upward and downward with the extension and the retraction of the shaft), and the seat is pulled backward (due to the retraction of the shaft, the swinging members generate a backward pulling force relative to the seat); in the meantime, the chairback moves backwardly by way of the swings of the T-shaped pieces, and the distance between the two supports expands for pushing the connecting rod outwardly, accordingly the pad rotatably swings upward to achieve the complete expansion of the reclining chair for user's recumbency
On the contrary, while desiring to return the sitable mode of the reclining chair, the shaft is pushed to actuate the forward movement of the seat and the upward swings of the armrests, therefore the seatback rotates angularly to become a sitable state, and the pad urges the connecting rods to retract by using the distance between the two supports, thus returning a sitable mode of the reclining chair.
On the other hand, during the shaft of the hydraulic cylinder extends up to its longest travel, since the front ends of the double rodded holders axially connect with the shaft, they are lifted upwardly with the extension of the shaft and rotatably inclined forward, thus the armrests become a raised and forward inclined state. During this process, because the seat, the seatback and the armrests couple with each other by means of the supports and the T-shaped pieces, and the swing members of the seat connect with the shaft as well, the seat and the seatback are simultaneously raised upwardly and then become inclined forwardly with the movement of the armrests, causing an upward raised and forward inclined state of the reclining chair. Thereby, the user allows to reduce his movements and force by straightly stepping from the seat and standing up on the ground. Likewise, the reclining chair may be served to the elder who acts slowly.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment in accordance with the present invention.
An adjusting structure for use in reclining chairs in accordance with the present invention comprises a reclining chair 10 including a seat 1, a chairback 2, two armrests 3, a pad 4 and a frame 5 as illustrated in
On the contrary, while desiring to return the sitable mode of the reclining chair 10, the shaft 511 is pushed to actuate the forward movement of the seat 1 and the upward swings of the armrests 3, therefore the seatback 2 rotates angularly to become a sitable state, and the pad 4 urges the connecting rods 41 to retract by using the distance between the two supports 42, thus returning a sitable mode of the reclining chair 10.
On the other hand, during the shaft 511 of the hydraulic cylinder 51 extends up to its longest travel, since the front ends of the double rodded holders 52 axially connect with the shaft 511, they are lifted upwardly with the extension of the shaft 511 and rotatably inclined forward, thus the armrests 3 become a raised and forward inclined state. During this process, because the seat 1, the seatback 2 and the armrests 3 couple with each other by means of the supports 42 and the T-shaped pieces 43, and the swing members 11 of the seat 1 connect with the shaft 511 as well, the seat 1 and the seatback 2 are simultaneously raised upwardly and then become inclined forwardly with the movement of the armrests 3, causing an upward raised and forward inclined state of the reclining chair 10. Thereby, the user allows to reduce his movements and force by straightly stepping from the seat and standing up on the ground. Likewise, the reclining chair 10 may be served to the elder who acts slowly.
The invention is not limited to the above embodiment but various modifications thereof may be made. It will be understood by those skilled in the art that various changes in form and detail may made without departing from the scope and spirit of the present invention.
