Supports – Stand – Standard type
Patent
1986-01-24
1987-09-08
Friedman, Carl D.
Supports
Stand
Standard type
248397, 297375, F16M 1100
Patent
active
046918906
DESCRIPTION:
BRIEF SUMMARY
FIELD OF INVENTION
This invention relates to a recliner which enables to adjust vertically and angularly the back plate and seat plate of chairs which are installed not only in express buses, passenger cars, trains, airplanes and ships, but also in offices and homes.
In the standing life of present time, the comfort of chairs became an important factor in dissipating the stress and tiredness of the human body. The comfortability of a chair largely depends on the cushion of the chair and on the angular adjustability of the back plate, while the height of the seat plate will have to be adjustable in order to accommodate a wide range of sizes of the human body.
That is, chairs should be such that the angle of the back plate should be adjustable as desired, the feelings on the slope and cushion should be pleasant, the whole product should be durable, should not generate noise due to vibrations, and the height of the seat plate should be adjustable in order to secure a wide range of use.
TECHNICAL BACKGROUND
The conventional recliners have the function of adjustability of the angle of the back plate, but there has been no height adjustability and the cushion of recliner itself. Further, the conventional recliners are divided into the tension type comprising gear and cam, and the compression type comprising hydraulic device and elastic springs; therefore, its attachment location is limited, while the complicatedness of the structure brought difficult in manufacturing and installation. Further still, the conventional recliners had insufficient durability, gave rise to frequency disorders, generated noise due to their clearance and vibrations, while they brought to the users the feeling of non-elastic rigidity and the feeling of abrupt falling sensation, raising unpleasant feelings and adding to the tiredness of the users.
INITIATION OF INVENTION
The present invention provides not only a recliner but also an adjustable seat plate. Its adjustment of the slope is a continuous linear displacement, the halted state is firm, and does not allow any amount of clearance, providing a good security. Also, there is no noise, its movements are smooth, its back plate has a natural cushion generator attached to it, its structures are simplified aimed at lengthening the durability, and diversification of the range of use realizes economy.
The movement of the recliner is controlled by means of the spring cylinder, spiral pipe cylinder, and cushion cylinder, and specifically, as the controlling device, the cone and collet are combined in order for the collet to be engaged or pressed into the spring cylinder, spiral pipe cylinder or cushion cylinder so that movement and halting may be carried out. There are also such structure that button or lever is both pressed in and pulled out. Further in the mutual relationship between the rod and spring cylinder, the dual structure of "pressed-in in the tension state", or "pulled in the pressed-in state" is utilized to diversify the range of use.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 illustrates the first embodiment of the present invention.
FIG. 2 illustrates the second embodiment of the present invention.
FIG. 3 illustrates the third embodiment of the present invention.
FIG. 4 illustrates the fourth embodiment of the present invention.
FIG. 5 illustrates the fifth embodiment of the present invention.
FIG. 6 illustrates the sixth embodiment of the present invention.
FIG. 7 is a perspective view of the principal parts disassembled.
FIGS. 8 to 10 illustrate the location of application.
THE MOST PREFERRED EMBODIMENT OF THE PRESENT INVENTION
As an example, the housing (1) is fixed on the back plate, and the bracket (3) threadly joined to the rod (2) is secured on the arm rest. When, as in FIG. 1, the back plate is tried to be inclined backward in a state in which the rod (2) is completely inserted into the spring cylinder (10), i.e., in which the back and seat plates of the chair form the right angle, the button should be raised so that the arm (6) may compress the spring (7) by pivo
Friedman Carl D.
Slack Naoko N.
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