RU2384475C2 - Carrier for passenger seat of enhanced comfort - Google Patents

Abstract

FIELD: air transport.

SUBSTANCE: carrier contains mechanism for longitudinal and transverse movement, pivot mechanism, supports and seat retention mechanism. Pivot mechanism is made as moving platform supporting mechanism for longitudinal and transverse movement interconnected by bearings, and fixed ring at supports for the purpose of its fixing to passenger compartment floor. The carrier is also equipped with support plate fixed to the floor and each support is made of two U-shaped stands with claws at the ends for connection to pivot mechanism and support plate respectively. Claws are interconnected by membrane with variable section and narrowing in the middle part. Lower legs of stands are made with arch curved surface and interconnected by fasteners with support plate through oval grooves directed crosswise to flight direction while they are installed along flight direction.

EFFECT: maximum comfort for passenger and reduction of construction weight.

2 cl, 6 dwg

Description

The field of technology.

The invention relates to the equipment of passenger compartment of passenger vehicles, in particular to the seats of passenger aircraft, and can be used in the construction of the supports of seats of increased comfort to increase their reliability while ensuring comfort due to controlled and stepless rotation and movement in the horizontal plane.

The level of technology.

Known "Passenger seat" patent R.F. No. 2224689, IPC B64D 11/06, which has increased comfort due to the fact that it provides horizontal movement in two perpendicular directions and rotation around the horizontal axis. According to the invention, the passenger seat comprises a frame mounted on the mechanism of longitudinal and lateral movement, made in the form of first bushes carrying first parallel sliding rods, the ends of which are fixed in second bushes made with axes perpendicular to the axes of the first bushes, and bearing second parallel sliding rods, the ends of which are connected with the frame of the chair, and the rotation mechanism. The mechanism of longitudinal and transverse movement, in turn, is rigidly connected with the rotation mechanism. The rotation mechanism is made in the form of an upper movable base connected by means of a bearing to a lower stationary base made integral with an axisymmetric strut equipped with a mounting plate at the lower end. In this case, the upper movable base is connected with the base of the mechanism of longitudinal and transverse movement and is made with an internal gear rim, and the rotation mechanism itself is equipped with a device for fixing the chair against rotation, made with fixators fixed to the axis, interacting with the internal gear rim, and a spring-loaded lever connected by a cable with control handle. The mechanism of longitudinal and transverse movement with the rotation mechanism form the support of the chair and provide its movement in the horizontal plane and rotation around the vertical axis.

A disadvantage of the known design is that the support is mounted on a rack, and for the perception of significant overloads arising in flight, it must have significant cross-sections on the seat, which leads to an increase in its mass.

A support device for a swivel chair is known, comprising upper and lower rotors made in the form of flat plates forming a holder for a flat circular stator fixed by means of vertical racks on brackets mounted on the floor. In this case, the upper and lower rotors are connected with a circular stator by ball bearings and carry the first bushings for accommodating the first parallel sliding rods, the ends of which are fixed in the second bushings made with axes perpendicular to the axes of the first bushings and bearing the second parallel sliding rods, the ends of which are connected with the frame of the chair. (See US patent 6691970 B1, NKI 248/425, 2004)

Known support device provides rotation and movement of the chair along two axes. However, the implementation of the supporting device with vertical struts mounted on the floor brackets entails a significant increase in the mass of the racks, brackets and the entire seat to absorb the large loads that arise in flight on the seat, which is unacceptable for the use of such seats on aircraft. In addition, in the presence of deformations of the cab floor, this design does not ensure smooth movements of the chair, impairing comfort.

A support device for a chair is known, disclosed in US patent No. 6938957 B2, IPC A47C 1/06, 2005. The support device includes a longitudinal and lateral movement mechanism, a support rotation mechanism and a chair fixation mechanism. The mechanism of longitudinal and transverse movement carries a chair and, in turn, is rigidly connected with the rotation mechanism. The rotation mechanism is made in the form of an upper movable base connected by means of a bearing to a lower stationary base made in the form of a coupled ring and brake disc. The device for fixing the chair is made in the form of a brake, the body of which is equipped with a fork, connected to a movable base and made with a cutout for the passage of the brake disc. The fork is equipped with a flexible element for moving the brake element interacting with the brake disc and connected to the control cable. The lower fixed base is connected with supports made in the form of stamped brackets with cantilever arms attached to the floor by universal joints.

The device provides rotation and movement of the chair in a horizontal plane, allows you to compensate for floor deformations from existing loads. However, this embodiment of fixing the chair to the floor is quite complicated and has a significant mass. Moreover, the brake device is also complex in design and does not provide reliable stepless fixation of the seat.

SUMMARY OF THE INVENTION

The objective of the invention is to develop such a design of the passenger seat, mainly for passenger aircraft, which would ensure the perception of all regulatory loads and structural deformations that occur during flight during the specified life of the seat while ensuring maximum comfort for the passenger.

In addition, the design should have a minimum weight and be simple and technological in production.

According to the invention, the task is achieved in that the supporting device of the passenger seat is of increased comfort, mainly for passenger airplanes, comprising a longitudinal and lateral movement mechanism, a rotation mechanism, supports and a seat fixing mechanism, wherein the rotation mechanism is made in the form of a movable rolling bearing connected to each other base bearing the mechanism of longitudinal and transverse movement, and a fixed ring mounted on supports for attaching to the floor passage The Irish cabin is equipped with a base plate attached to the floor, and each of the supports is made in the form of two trough-shaped racks, bearing at the ends of the legs for connecting to the rotation mechanism and the base plate, respectively, and interconnected by a diaphragm of variable section with a narrowing in the middle part, with the lower legs of the struts are made with a convex curved surface and are connected by fasteners to the base plate through oval grooves directed across the flight direction, and the supports themselves are installed along the direction I'm flying.

In addition, the mechanism for securing the chair against rotation includes a worm wheel crown mounted on a fixed ring, a spring-loaded slider mounted movably in the slots of the moving base and bearing an articulated cylindrical worm at the outer end, interacting with the worm gear ring, and a worm gearing device .

This embodiment of the support device allows you to withstand the specified loads and deformations with minimal weight and an increased level of comfort when using the chair.

The list of drawings.

The invention is illustrated by drawings, in which:

figure 1 shows a General view of the chair, side view;

figure 2 shows a General view of the chair, front view;

figure 3 shows a top view of the supporting device with the chair removed;

figure 4 shows the node G of figure 1 with a partial cutaway;

figure 5 shows a section FJ of figure 1;

Fig.6 shows a section MM of Fig.3.

The implementation of the invention.

In accordance with the invention, the support device of a passenger seat of increased comfort, mainly for passenger aircraft, comprises a longitudinal and lateral movement mechanism, a swing mechanism, supports and a chair fixation mechanism, the rotation mechanism being made in the form of a movable base bearing device connected to each other by a bearing mechanism longitudinal and transverse movement, and a fixed ring mounted on supports for attaching to the floor of the passenger cabin.

In this case, the support device is equipped with a support plate attached to the floor, and each of the supports is made in the form of two trough-shaped posts bearing at the ends of the legs for connection to the rotation mechanism and the support plate, respectively, and interconnected by a diaphragm of variable cross section with narrowing in the middle part, the lower legs of the struts are made with a convex curved surface and are connected by fasteners to the base plate through oval grooves directed across the direction of flight, and the supports themselves are installed in e flight direction.

In addition, the mechanism for securing the chair against rotation includes a worm wheel crown mounted on a fixed ring, a spring-loaded slider mounted movably in the slots of the moving base and bearing an articulated cylindrical worm at the outer end, interacting with the worm gear ring, and a worm gearing device .

In a preferred embodiment of the invention, the passenger seat (FIG. 1) comprises a frame 5, a supporting device 6, a seat 1, a backrest 4, armrests 3, a footrest 9, a pull-out table 2, a tie system 12 (FIG. 2).

Frame 5 is a flat-welded construction of pipes of rectangular cross section, with nodes on which the backrest frame, armrests, backrest movement mechanism, backrest fixation mechanism, footrest and extension mechanism are fixed. To increase the bearing capacity of the side beams of the frame and to ensure the symmetry of the application of loads to them, they are made of two pipes. An armrest is attached to the outer pipe through a patch plate. An arm-rib is welded to the outer pipe in its rear part, which, together with the rib of the inner pipe, is a symmetrical support for the axis of the backrest. Brackets-ribs are welded to the inner pipes in its front and rear parts, with which the frame with all nodes is mounted on the supporting device 6 (not shown).

The backrest 4 is deflected to position B. The control of all mechanisms designed to deflect the backrest, extend the footrest, and move the seat is performed manually using cable wires from the control levers 14 located in the armrest.

The supporting device 6 (Fig. 1) consists of a mechanism of longitudinal and transverse movement in the horizontal plane 11 (Fig. 3) and a rotation mechanism 19 (Fig. 3), connected to each other.

The mechanism of longitudinal and transverse movement 11 (see figure 3) is made according to a two-coordinate scheme and contains the first guide support sleeves 35 for moving the first parallel sliding rods 36, the ends of which are fixed in the second guide sleeves 32, made with axes perpendicular to the axes of the first guide sleeves , and supporting second parallel sliding rods 33, the ends of which are connected with the frame of the chair (not shown).

The mechanism of longitudinal and transverse movement of 11 using its first guide support sleeves 35 (4 pcs.) Is fixed on the internal movable base 34 of the rotation mechanism 19 bolts Yu.

A transverse spiral brake is installed in each housing of the second guide bushings 32, which comprises a rotary sleeve with an eye for securing the end of the control cable, a right-handed torsion spring, a left-handed torsion spring, and two thrust bushings. Torsion springs and thrust bushings are placed in pairs symmetrically to the rotary sleeve inside the housing. The ends of the right- and left-handed torsion springs facing the rotary sleeve interact with supporting platforms, which are made on both sides of the rotary sleeve. The other ends of the cylindrical torsion springs interact with bearing pads formed by slots made on the thrust bushings. The sliding rods 33 and 36 are preferably circular in cross section and are moved along ball guides installed in the bodies of the second guide bushings 32 and the first guide support sleeves 35.

The mechanism of longitudinal and transverse movement 11 also contains a longitudinal spiral brake 25 (Fig.3), which is movably mounted on a round rod 61 and is made similar to the transverse spiral brakes described above. In this case, a rotary sleeve with an eye for securing the control cable, as well as right- and left-handed cylindrical torsion springs and thrust bushings are placed in the housing with a hole under the eye. The housing is rigidly connected to the base and is capable of relative longitudinal movement and fixing in a predetermined position of the rod 61, the opposite ends of which are rigidly connected to the bodies of the second guide bushings 32.

The turning mechanism 19 (FIG. 3) of the passenger seat is made in the form of a central movable base 34 interconnected, bearing the mechanism of longitudinal and transverse movement 11, and an external stationary ring 63, mounted on bearings 7 (FIG. 1) with bolts W (FIG. 3 ) In this case, the central movable base 34 along its outer circular end face is made in the form of an inner ring of horizontal ball bearing, which engages with the surface of the outer ring of the ball bearing, made on the inner surface of the outer stationary ring 63 (see Fig.6).

The fixed ring 63 on its outer surface has an external gear rim made in the form of a worm wheel.

The rotation mechanism 19 is equipped with a mechanism for fixing the chair against rotation.

The mechanism for fixing the chair against rotation (see Fig. 6) contains a spring-loaded slider 39 mounted movably in the grooves of the central movable base 34 and bearing an articulated cylindrical worm 45 at the outer end that interacts with the ring gear of the stationary ring 63. At the other, inner end, the spring-loaded slider 39 contains a pivotally mounted eccentric stop 41, equipped with a catcher H, interacting with the pin 40. At its lower end, the eccentric stop 41 is made with the eccentric surface K, interacting the end face of the spring-loaded slider 39.

In the fixed position of the chair, the worm 45 is engaged with the external gear ring of the stationary ring 63 under the action of the spring 38. The cylindrical shape of the catcher N ensures jamming of the axle and stops the slider 39 from horizontal movement. To release the chair, you must move the slider 39 out of the center. The movement of the slider 39 is carried out as follows: the eccentric stop 41 is set in motion by a cable of the control mechanism (not shown), and when it is turned by the protrusion K, moves the slider 39, while freeing the axle 40 of the slider with its catcher N.

The slider 39, moving together with the worm 45, unlocks the rotation mechanism, and the chair can be rotated to any angle under the influence of the passenger's efforts. When the cable is released, the slide moves backward using the spring 38. Due to the worm 45 being pivotally mounted on the axis and able to rotate freely, its teeth freely engage with the teeth of the outer ring 63, turning slightly, and the worm 45 is always engaged. without creating a "dead zone", which allows the chair to move around the axis steplessly and smoothly fixed in any position.

Support 7 bolts 73 (figure 4) are attached to the base plate 15 (figure 4, 5). The supports are made in the form of two racks of a trough-shaped section, carrying massive legs at the ends for connecting to the base plate and the rotation mechanism, respectively, and interconnected by a beam of variable cross section with a narrowing in the middle part. Racks on their lower legs have a profiled supporting surface D (figure 3), made in the form of a convex curved surface. Such a surface of the supports has a small contact patch with the base plate 15, which allows them to withstand significant rotations relative to each other.

The base plate 15, made of a sheet D16AT with a thickness of 10 mm, has dimensions of at least 490 mm and oval grooves in the corners for attaching the chair to the floor with bolts. In this case, the mounting slots of the base plate are located across the flight, and the supports 7 are located along the flight with their plane.

This embodiment of supports, base plate and their fastenings allows you to withstand significant loads and deformations regulated by the Aviation Rules, with a minimum weight of the supporting device. In addition, floor deformations are not transmitted to the chair, thereby increasing the comfort of using the chair.

The implementation of the supporting device with a plate and elastic supports allows you to withstand heavy loads and deformations regulated by the Aviation Rules.

In addition, the support device increases the comfort of using the chair by providing smooth stepless regulation and reliable fixation of the chair in any position.

Claims (2)

1. The supporting device of a passenger seat of increased comfort mainly for passenger aircraft, comprising a longitudinal and lateral movement mechanism, a rotation mechanism, supports and a seat fixing mechanism, wherein the rotation mechanism is made in the form of a movable base connected by a bearing device, bearing a longitudinal and transverse mechanism movement, and a fixed ring mounted on supports for attaching to the floor of the passenger cabin,
characterized in that it is equipped with a base plate attached to the floor, and each of the supports is made in the form of two uprights of a trough-shaped section, bearing at the ends of the legs for connecting to the rotation mechanism and the base plate, respectively, and interconnected by a diaphragm of variable section with a narrowing in the middle part while the lower legs of the racks are made with a convex curved surface and are connected by fasteners to the base plate through oval grooves directed across the flight direction, and the supports themselves are installed along flight equation. 2. The supporting device for a passenger seat of increased comfort according to claim 1, characterized in that the mechanism for securing the seat from turning contains a worm wheel crown made on a fixed ring, a spring-loaded slider mounted movably in the grooves of the moving base and carrying an articulated cylindrical worm on the outer end interacting with the gear rim of the worm wheel, and the device for removing the worm from engagement.

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