WO2002071899A1

WO2002071899A1 - Reclinable mechanism for seats

Info

Publication number: WO2002071899A1
Application number: PCT/MX2002/000012
Authority: WO
Inventors: Guadalupe Sandra Morano Guzman
Original assignee: Guadalupe Sandra Morano Guzman
Priority date: 2001-03-14
Filing date: 2002-02-22
Publication date: 2002-09-19

Abstract

The invention relates to a mechanism which, among other advantages, can be used to recline the seat back precisely and to slide the seat simultaneously, thereby optimising a suitable isoptic for cinemas and theatres. The inventive mechanism is characterised in that it operates silently. Said mechanism meets the growing demand for high levels of comfort and space. The model creates no noise while simultaneously enabling the user to recline as desired in a controlled manner and to benefit from a suitable isoptic. The invention comprises a pair of bearings having a rectangular casing and which are provided with a toothed groove. The toothed groove compresses a stabilising bar which is welded to the lower part of the seat and which slides inside said groove. The seat is attached to the seat back by means of an articulation. A bar is also welded to the rear of the seat back and is inserted in a pair of pillows at either end. In this way, a pendular movement is generated that integrates both the seat back and seat into a single precise, controlled movement.

Description

RECLINABLE ACTION MECHANISM FOR SEATS

BACKGROUND

The constant evolution in diverse needs of the user of cinemas and shows, among which we can mention the quality of sound and image, the security and, within the scope of our work, the isoptic, as well as the extreme functionality and comfort , has led us to be sensitive to the demands of a segment of the population that sees a movie theater not only as a recreation center, but also wants to enjoy an exceptional degree of comfort.

Thinking about satisfying this demand and achieving this degree of comfort in the theater or cinema, we have developed a seat of very high performance and quality, of type "reposet", which combines comfort, smoothness of movement and adjustable recline by the user, with silent operation, large amplitude and aesthetically pleasing.

It is a reclining seat to pleasure by the user. With endless positions within a range of 115 ° to 137 °, in order to achieve an excellent isoptic, combined with great comfort and spaciousness. For this purpose we develop an innovative mechanism that allows the backrest to recline and that simultaneously slides the seat forward to ensure that the user adopts the most comfortable position, the foregoing without prejudice to both the individual and collective attention to the show or event exhibited. Currently, known models of recliners can be described and classified as follows:

1.- The best known are those that are known in the market as "reposet", whose operation is manual, only changes the shape and number of elements in the components of the mechanism, some more complex than others, according to the manufacturer and They work as follows: When the The user sits down, with a pulse reclines the backrest backwards, the seat is projected to the front and at the same time a footrest is extended, the user being laid down, however said recline prevents a good isoptic because said recline is not gradual. These mechanisms are formed by plates and screeds as a support base, bolted to the structure, with said screeds forming interlocking arms in the shape of an accordion, joined for articulation by rivets and washers between each joint, with bolts as stops of the mechanism. Also known in this group are those in which the user operates a side lever, which activates releasing springs, thereby obtaining the same effect as in the previous ones.

The use of mechanisms such as these in a public entertainment hall implies individual and collective distraction, due to the loss, even if momentary, of an adequate isoptic; there is also annoying and excessive noise generation.

Another additional drawback of these traditional recliners, is that when the user is lying down and therefore with the extended footrest, a co-spectator who arrives late at the start of the function or show, or who needs to leave the movie theater or theater, hitting the extension footrest with the shins, will definitely damage the delicate joints that generate the extension of that element, which in an emergency situation where a massive eviction of the room is required, makes them a potential danger. In addition to the complexity of its operation, these mechanisms are handcrafted because they require countless elements based on strips, forming the arms that articulate the movement and also structurally these seats are formed by joined wooden sections by nails, and invariably require adjustments for assembly. The fact of using wood extensively in the manufacture of these seats, negatively impacts the ecological environment, impacting our forests to the detriment of all.

The main drawback of being handcrafted these reclining seats, and whenever there is a growing demand for higher levels of comfort, is that manufacturers are not able to meet the demand for these seats, since the nature of this type of production, unlike the industrial one, does not allow mass production, and in contrast, the industrial manufacturing of our model allows us a quality and homogeneity of the product for the benefit of the end user.

2.- Electric reclining mechanisms.- Based on a motor that drives a hydraulic piston with which the movement is generated, which necessarily implies noises when the motor is operated, which makes them ineligible for use in cinemas, theaters or planetarium, since in a public room its installation implies a complex electrical installation, affecting the cost of entry for the audience and the potential risk of a fire, in addition to the very high cost of these chairs for the same complexity of their elements .

D E S C R I P C I Ó N

OF THE PRESENTED FIGURES.

Figure 1 represents a view of the right side of a seat, which shows the complete integrated mechanism, consisting of the following elements and where:

Element 1) represents the Backrest Frame;

Element 2) represents the Seat frame;

Element 3) represents the backrest stabilizer bar;

Element 4) represents the stabilizer bar of the seat; Element 5) represents a Nylon Bushing, consisting of three layers, which are described as follows: Element 5.1) represents the outer layer, in a round steel tube; element 5.2) represents the middle layer, in vulcanized natural rubber; Element 5.3 represents the internal part, the hub itself, in nylon sectioned to the center of its length, leaving a segment or dividing wall of ± 1mm. thick, because each bushing receives a stabilizer bar when these seats are installed in pairs. This element 5 and its sub-elements described above are duly appreciated in Figure 2. Element 6) represents a rectangular steel envelope. o Element 7) represents a vulcanized natural rubber bearing. Element 7.1) represents a groove with toothed pattern which is formed in the vulcanized natural rubber bearing. Elements 6 to 7.1 can be seen in Figure 3.

5 Element 8) represents a Rondana in Nylon.

Element 9) represents a Nylon Separator.

Element 10) represents a screw.

Element 11) represents a through screw.

Element 12) represents a lock nut. o Element 13) represents a lateral side of the seat structure.

Element 14) represents a steel plate that is welded to the seat frame.

Figure 2 represents a perspective view of element 5), described above. 5 Figure 3 is a perspective view of the assembly formed by the rectangular envelope (element 6) and the natural rubber bearing (element 7), in which the toothed drawing that is practiced in natural rubber is appreciated in detail

(item 7.1) Above described.

Figure 4 represents 2 views of the assembly formed by elements 6) and 0 7), a top of the rectangular envelope, and a side view, in which appreciate in detail the teeth of the rubber, (item 7.1)

Figure 5 represents a perspective view of element 9), which is a

Nylon separator

Figure 6 represents a front view of the left side side of the seat structure (item 13) where the way in which the seat stabilizer bar (item 4) is inserted into the special nylon bushing (item 5) can be seen in detail. ). It is also appreciated that the bar delimits with the terminal segment of the bushing (item 5.1).

Figure 7 represents a front view in which two stabilizer bars of the seat (elements 4) are inserted in a special bushing (element 5) in which the division formed inside the nylon bushing (element 5.1) of 1 mm can be seen. thick, so that each bar has independent movement.

Figure 8 depicts a front view of the right side side of the seat structure (element 13) where the way in which the seat stabilizer bar (element 4) is inserted into the special nylon bushing (element 5) can be seen in detail. ). It is also appreciated that the bar is adjacent to the terminal segment of the bushing (item 5.1)

OF OPERATION

Our mechanism allows the user of the seats in which the first one is integrated, to have the possibility of reclining the backrest and simultaneously projecting the seat towards the front, thus, when a user sits looking for the most comfortable position, and makes a slight movement impulse backward with the upper back, which drives the backrest, simultaneously moving the seat to the front. The user decides to what degree of inclination he needs to leave his position fixed, that is, that the movement is not out of his control, since in our mechanism: The backrest and the seat are integrated by two square tube frames folded in shape of "U" (elements 1 and 2), joined at their terminals union-, which have an ironed punch and a punch through which a screw passes (element 10), with a nylon washer that functions as a separator (element 8), which integrates a lock nut (element 12) . With this joint a hinge movement is formed. On the other hand, the backrest frame (element 1) has a stabilizer bar (element 3) welded on the back, which runs from left to right of said frame, which has projections that are used for its support, which are inserted into each end to a special nylon bushing (element 5), which passes through and is welded to the sides of the seat structure (element 13), generating a pendulum movement in the backrest.

Said movement is associated with that of the seat, by means of the first described articulation, which, when functioning as a hinge, transmits the movement generated by the user in the backrest frame (element 1), to the seat frame (element 2). Said seat frame (element 2), on the lower front part, welded steel plates (elements 14), which are fixed by means of through screws (elements 12), a pair of natural rubber bearings (element 7), which, thanks to the grooved groove design on the rubber (item 7.1) compresses the stabilizer bar of the seat (item 4), allowing precise and precise stability in the recline desired by the user.

Each of the aforementioned rubber bearings is drowned inside a rectangular envelope in a steel plate (element 6), whose function is to contain the rubber bearing. In the upper and lower part of said envelope in steel plate, two holes are formed that serve to allow the entry of a pair of through screws (elements 11), which serve to fix the rubber bearing assembly and to the same envelope to a pair of steel plates that are welded at the bottom of the seat frame (item 2). Inside the slots and rubber bearing with serrated drawing described above or (item 7.1), the seat stabilizer bar (item 4) slides, the which comes under pressure inside that toothed cavity of the rubber, for a better grip and compression of said rod.

This stabilizer bar of the seat has terminal ends reduced in its diameter, which are first introduced to a spacer (element 9) whose function is to center the bar and prevent lateral movements and then to a bushing (element 5), the which crosses and is welded to the sides of the seat structure (element 13), said bushing has the following characteristics: The outer part formed in a round steel tube; The middle part consists of a vulcanized natural rubber layer and the inner layer is in nylon sectioned to the center of its length, through which the ends of the seat stabilizer bar (element 4) pass.

It is important to note that our mechanism has practical application for installation both for individual seats, and those in the market are known as love-seats, that is, pairs of seats.

Emphasis is placed on the above as it has significance in the shape and arrangement of special nylon bushings (item 5) with respect to the sides of the seat structure (item 13). When it comes to a pair of seats, two lateral structures and a central one are placed. In the latter, the bushings are placed through the entire structure and welded to it, in order to receive the stabilizer bar terminals from both the backrests and the seats located on both sides. The above is possible because the special bushings (elements 5) that are installed in the central structures have the characteristic of allowing both seats to have independent mobility because the section of the nylon bushing (element 5.3), is not sectioned full length, as it retains a segment or dividing wall of ± lmm. thick, because each bushing receives a stabilizer bar when these seats are installed in pairs. On the other hand, in individual seats that make up this mechanism there are only two sides, and in which the bushings do not cross the entire structure, but that towards the external sides it is placed flush and welded to it, in order to receive their respective backrest and seat stabilizer bars, retaining the property of cushioning and making the internal movement of said bars silent

With all this, the user, as already mentioned, has a very comfortable, spacious, quiet seat that allows him to have a wide range of recline postures, for the benefit of an adequate isoptic.

Claims

1.- Reclining action mechanism for seats, characterized by a backrest frame, folded in a "U" shape, which has an ironed punch and a punching at its junction terminals, through which a screw passes, with a nylon washer as a separator to which a safety nut is integrated, which forms a joint that transmits the movement generated when the user exerts a pressure on the backrest, which has a stabilizer bar welded on the back. or

2.- Mechanism of reclining action for seats, characterized by a stabilizer bar of the backrest, crossing it from side to side and, which in conjunction with a separator and a special bushing generates a pendulum movement in the backrest, said movement is transmitted to the seat by middle of the joint mentioned above. 5

3.- Reclining action mechanism for seats, characterized by a seat frame that has welded steel plates in which a pair of bearings (preferably in vulcanized natural rubber) are fixed by means of through screws.

4.- Reclining action mechanism for seats, characterized by a pair of or vulcanized natural rubber bearings. Both bearings are drowned inside a rectangular envelope in steel plate, which has holes necessary so that through screws, fix that assembly in the lower front part of the seat frame. Inside the bearings a longitudinal groove is formed with a toothed drawing, 5 by which the stabilizer bar of the seat is compressed and slid.

5.- Mechanism of reclining action for seats, characterized by a stabilizer bar of the seat, which presses into a pair of natural rubber bearings, which have serrated grooves, produces the effect of a higher coefficient of friction, which There is greater control of the seat recline by the user.

6.- Reclining action mechanism for seats, characterized by two pairs of special nylon bushings, a pair receives the terminals of the backrest stabilizer bar, causing pendulum movement. The other pair receives the terminals of the stabilizer bar of the seat, and serve as a point of attachment and prevents lateral movements.

These special bushings also serve to eliminate noise and friction in the mobile joints of the mechanism.