CN111098769A

CN111098769A - Novel seat with leg support

Info

Publication number: CN111098769A
Application number: CN202010061558.6A
Authority: CN
Inventors: 韩鹏
Original assignee: Qingdao Meilleur Railway Co ltd
Current assignee: Qingdao Meilleur Railway Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-05-05
Anticipated expiration: 2040-01-19
Also published as: CN111098769B

Abstract

The invention discloses a novel seat with a leg rest, comprising a seat body, a seat back, an armrest box, a leg rest device and a footrest. A leg rest device is set on the seat to realize positioning at any angle between 90°-180° with the seat body, which can be adjusted according to the needs of the passengers, which improves the comfort of the passengers during long-term travel and is easy to operate and maintenance. A front-mounted tea table is stored inside the armrest box of the seat, which can be directly pulled out from the front end of the armrest box, folded and positioned for use, and the tedious operation process in the prior art is optimized. There are footrests under the seat, which can realize the lifting of the leg support, and adjust the seat rotation 180° at the same time, and adjust the seat direction according to the running direction of the vehicle, so as to avoid passengers suffering from motion sickness and other discomfort. Therefore, the present invention provides a novel seat with a leg rest, which is simple in structure, convenient in use, simple in maintenance, beautiful in appearance, and has excellent practical performance.

Description

Novel seat with leg support

Technical Field

The invention relates to the technical field of seats, in particular to a novel seat with a leg support.

Background

At present, when a motor train unit, an ordinary passenger car, a long-distance bus, an intercity car, a ship and other transportation means are taken for a long time, legs are pressed and blood flows smoothly due to the fact that the legs and the feet are fixedly seated on a seat for a long time, and discomfort of long-term journey is increased. In addition, when people take a long-distance vehicle or ship, people need the tea table under the conditions of using a laptop or drinking beverages, but most of seats are not provided with the tea table or the tea table is opened by the seat provided with the tea table, so that the maintenance is troublesome. Therefore, the invention provides a novel seat with a leg support, which has a simple structure, is convenient to use and is easy to maintain, and aims to solve the problems in the prior art.

Disclosure of Invention

The invention aims to provide a novel seat with a leg rest, which aims to solve the problems in the prior art in the background technology.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: the novel seat with the leg support comprises a seat body, a seat back, an armrest box and a leg support device; the chair back is hinged with the chair body, and the top of the chair back is also provided with a headrest; the armrest box is arranged on one side of the seat body;

the leg support device is arranged on the front side of the seat body and comprises a leg support plate, a leg support main frame, an air spring, a connecting rod mechanism and a support plate, wherein the connecting rod mechanism and the support plate are symmetrically arranged on two sides of the leg support plate; the leg support main frame comprises a rotating shaft and support rods symmetrically arranged at two ends of the rotating shaft, and shaft sleeves are symmetrically arranged at two ends of the rotating shaft and fixedly connected with the seat body; the air spring is connected with the leg support main frame through a linkage plate, one end of the linkage plate is hinged with the air spring, and the other end of the linkage plate is fixedly connected with the rotating shaft; the connecting rod mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is hinged with the inner wall of the leg supporting plate, the middle part of the first connecting rod is hinged with the supporting rod, and the other end of the first connecting rod is hinged with one end of the second connecting rod; the other end of the second connecting rod is fixedly connected with one end of the third connecting rod; the other end of the third connecting rod is hinged with the seat body; one end of the supporting plate is hinged with the supporting rod, and the other end of the supporting plate is hinged with the inner wall of the leg supporting plate.

Further, the first link is provided in a V shape for preventing a link dead point.

Furthermore, the third connecting rod is L-shaped, two threaded holes are formed in the L-shaped long part, and the second connecting rod is fixedly connected with the third connecting rod through two screws.

Further, still include the tea table, the tea table sets up to forward type tea table, the tea table with handrail incasement lateral wall is articulated and accomodate in the inside of handrail case.

Furthermore, the tea table comprises a table plate, a second hinge fixedly connected with the table plate and a first hinge hinged with the second hinge through a hinge shaft; a stepped hole is formed in the front side face of the first hinge, a rotating sleeve is installed in a small hole of the stepped hole, and a positioning shaft is arranged in the rotating sleeve to position the first hinge in the armrest box; a first round hole is formed in the upper end face of the first hinge, and an adjusting shaft is installed in the first round hole; the front side surface of the first hinge is also provided with a long hole, a cross shaft is arranged in the long hole, and two ends of the cross shaft are arranged in positioning grooves of the armrest box; a second round hole is formed in the right side face of the first hinge, a spring is installed in the second round hole, one end of the spring is in contact with the outer surface of the cross shaft, and the other end of the spring is fixed in the second round hole through a screw; the strip hole is communicated with the first round hole and the second round hole.

Furthermore, the upper end surface of the adjusting shaft is a spherical surface, the lower end surface of the adjusting shaft is an inclined surface, and the inclined surface is in contact with the outer surface of the cross shaft.

Furthermore, a pressure spring is installed in a large hole of the stepped hole, and the pressure spring is fixed in the stepped hole through the positioning shaft.

Furthermore, a threaded hole is formed in the middle of the transverse shaft, a limiting shaft is connected in the threaded hole in a threaded manner, and the limiting shaft is inserted into the spring.

And a rotary groove is formed in the lower end face of the second hinge, and the outer surface of the rotary groove is matched with the spherical surface of the adjusting shaft.

Furthermore, the chair also comprises a pedal, wherein the pedal is arranged below the chair body and used for simultaneously controlling the lifting of the leg support device and the adjustment of the direction of the chair body.

The technical scheme provided by the invention has the beneficial effects that:

1. the leg support device is arranged in the seat, so that the seat can be positioned at any angle of 90-180 degrees with the seat body, can be automatically adjusted according to the requirement of a passenger, improves the comfort level of the passenger in long-term travel, and is simple to operate and convenient to maintain.

2. Be provided with the handrail case on the seat, inside is accomodate forward type tea table, can directly use after pulling out, turning over a location from handrail case front end during the use, optimizes loaded down with trivial details operation process among the prior art, and it is more convenient to use.

3. Be provided with pedal in the seat below, can realize that the leg holds in the palm the device and goes up and down, open the rotatory self-locking of seat simultaneously, the rotatory 180 change directions of adjustment seat body carries out the adjustment of seat direction according to vehicle's traffic direction, avoids the passenger to appear the uncomfortable condition such as carsickness.

The invention provides a novel seat with a leg support, which is simple in structure, convenient to use, easy to maintain, attractive in appearance and excellent in practical performance.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the present invention in use;

FIG. 3 is a schematic structural view of the leg rest device of the present invention in an open state;

FIG. 4 is an exploded view of the leg rest of the present invention;

FIG. 5 is a schematic structural view of the tea table of the present invention;

FIG. 6 is an exploded view of the tea table of the present invention;

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used in this specification, the terms "vertical," "horizontal," "left," "right," "up," "down," "inner," "outer," "bottom," and the like are all oriented or positional relationships based on the illustrations as shown in the drawings for convenience in describing the invention and simplicity in description, and do not indicate or imply that the referenced devices or elements must be oriented, constructed, and operated in a particular orientation, and thus should not be construed as limiting the invention.

Example one

The novel seat with the leg rest shown in fig. 1-4 comprises a seat body 1, a seat back 2, an armrest box 3 and a leg rest device 4. The chair back 2 is hinged with the chair body 1, so that the angle adjustment of the chair back 2 can be realized, and the adjustment can be carried out according to the actual requirements of passengers. The top of the chair back 2 is also provided with a headrest 21, and the armrest box 3 is arranged on one side of the chair body 1, so that the comfort level of passengers is improved.

As shown in fig. 1 to 3, the leg rest device 4 is provided on the front side of the seat body 1, and includes a leg rest 40, a leg rest main frame 41, a gas spring 43, a link mechanism 45, and a support plate 46. The link mechanism 45 and the supporting plate 46 are symmetrically arranged on two sides of the leg supporting plate 40, so that the two sides of the leg supporting plate 40 can be uniformly stressed, the structure is stable, and the operation is more stable.

The leg support main frame 41 comprises a rotating shaft 411 and supporting rods 412 with two symmetrical ends, shaft sleeves 42 are symmetrically arranged at two ends of the rotating shaft 411, and the shaft sleeves 42 are fixedly connected with the seat body 1 to realize the stable and rotary motion of the leg support main frame 41.

The air spring 43 is connected with the leg support main frame 41 through a linkage plate 44, one end of the linkage plate 44 is hinged with the air spring 43, and the other end is fixedly connected with the rotating shaft 411. When the leg support main frame works, after the air spring 43 is opened, the piston rod pushes the linkage plate 44 to move, and the linkage plate 44 drives the leg support main frame 41 to rotate.

As shown in fig. 4, the link mechanism 45 includes a first link 451, a second link 452, and a third link 453. The first link 451 is provided in a V shape for preventing a link dead point. One end of the first link 451 is hinged to the inner wall of the leg rest 40, the middle portion of the first link 451 is hinged to the support bar 412, and the other end of the first link 451 is hinged to one end of the second link 452. The other end of the second link 452 is fixedly connected to one end of the third link 453. The third link 453 is L-shaped, two screw holes are opened at the long portion of the L-shape, and the second link 452 is fixedly connected to the third link 453 by two screws. The other end of the third link 453 is hinged to the seat body 1. The second link 452 and the third link 453 are fixedly connected together by two screws, that is, an overlapping portion is provided, so that the running tracks of the first link 451 and the second link 453 in the lifting and falling processes can be ensured to be consistent. If only one link is provided between the second link 452 and the third link 453, the link mechanism is liable to tilt, and unstable when the link mechanism is lifted and dropped, resulting in a poor practical effect.

The support plate 46 is hinged at one end to the support bar 412 and at the other end to the inner wall of the leg rest 40. The supporting plate 46 can be matched with the connecting rod mechanism 45 to work, so that the leg supporting plate 40 is lifted and fallen back, and the structure is more stable.

During operation, the air spring 43 is opened by pressing the button, the piston rod is ejected out, the piston rod drives the linkage plate 44 to move, the linkage plate 44 drives the rotating shaft 412 on the leg support main frame 41 to rotate, so that the support rod 412 on the leg support main frame 41 is driven to move, and the support rod 412 drives the connecting rod mechanism 45 and the support plate 46 to support the leg support plate 40. Specifically, the first link 451 in the link mechanism 45 drives the second link 452 to rotate, the third link 453 and the second link 452 keep a consistent movement track, and the second link 452 drives the third link 453 and one end of the seat body 1 hinged to the third link 453 to rotate, so as to lift the leg rest 40. When the leg support is not needed, the gas spring button is pressed, the leg support is pressed by the weight of the leg, the leg support plate is retracted according to the opposite movement track, and the leg support plate and the seat body are positioned at 90 degrees. In addition, when the button of the gas spring is pressed, the button is loosened at any angle between 90 degrees and 180 degrees, the leg supporting plate can be positioned at any required angle, and the leg supporting plate is convenient to use and flexible to operate.

The leg support device 4 is arranged in the seat, so that the seat can be positioned at any angle of 90-180 degrees with the seat body, and can be automatically adjusted according to the requirements of passengers, the comfort degree of the passengers in long-term travel is improved, and the leg support device is simple to operate and convenient to maintain.

Example two

It should be noted that, in embodiment 2, the left and right directional terms are defined by referring to the view shown in fig. 6, and it should be understood that the use of the directional terms should not limit the scope of protection claimed in the present application.

As shown in fig. 1-2, based on the novel seat with the leg rest described in the first embodiment, the novel seat further includes a tea table 5, the tea table 5 is a front-mounted tea table, and the tea table 5 is hinged to the inner side wall of the armrest box 3 and is accommodated in the armrest box 3.

As shown in fig. 5 to 6, the tea table 5 includes a table 50, a second hinge 51 fixedly connected to the table 50, and a first hinge 52 hinged to the second hinge 51 via a hinge shaft 53.

As shown in fig. 6, a stepped hole 521 is formed in the front side surface of the first hinge 52, a rotating sleeve 54 is installed in a small hole of the stepped hole 521, and a positioning shaft 56 is provided in the rotating sleeve 54 to position the first hinge 52 in the console box 3. A pressure spring 55 is mounted in the large hole of the stepped hole 521, and the pressure spring 55 is fixed in the stepped hole 521 through a positioning shaft 56. The rotating sleeve 54 arranged in the small hole of the step hole 521 can realize the rotation of the tea table in the armrest box 3, and the pressure spring 55 is fixedly arranged in the large hole of the step hole 521, so that the first hinge 52 can not swing left and right in the armrest box 3, and the use process is more stable.

A first round hole 522 is formed in the upper end surface of the first hinge 52, and the adjusting shaft 57 is installed in the first round hole 522. As shown in fig. 6, the upper end surface of the adjusting shaft 57 is formed as a spherical surface, the lower end surface is formed as an inclined surface, and the inclined surface is in contact with the outer surface of the lateral shaft 58. The lower end face of the second hinge 51 is provided with a rotary groove, and the outer surface of the rotary groove is matched with the spherical surface of the adjusting shaft 58.

The front side surface of the first hinge 52 is also provided with a long hole 523, a transverse shaft 58 is arranged in the long hole 523, two ends of the transverse shaft 58 are arranged in the positioning grooves of the armrest box 3, and the transverse shaft 58 moves left and right in the long hole 523 by reciprocating up and down in the rotary grooves according to the adjusting shaft 57. Threaded hole 581 is seted up at the cross axle 58 middle part, and threaded connection has spacing axle 582 in the threaded hole 581, and spacing axle 582 threaded connection is in the cross axle 58 middle part, can guarantee that the condition that the cross axle 58 does not appear rolling, and the structure is more stable.

A second round hole 524 is formed in the right side face of the first hinge 52, a spring 59 is installed in the second round hole 524, the limiting shaft 582 is inserted into the spring 59, one end of the spring 59 is in contact with the outer surface of the transverse shaft 58, and the other end of the spring is fixed in the second round hole 524 through a screw. The elongated hole 523 is connected to the first round hole 522 and the second round hole 523 in a penetrating manner. The spring 59 is arranged in the second round hole 524 and is in contact with the outer surface of the transverse shaft 58, the transverse shaft 58 is pushed to move rightwards in the long hole 523 when the adjusting shaft 57 moves downwards, and the spring 59 is in a contracted state; when the adjusting shaft 57 moves upward to return to the initial position, the spring 59 returns to the extended state to push the transverse shaft 58 to move leftward.

When the chair works, the lower end of the tea table 5 is pulled by the tea table from the front end face of the armrest box 3, the tea table is pulled out by rotating the hinge and turned upwards for 180 degrees, and then the tea table is turned for 90 degrees towards the inner side of the chair body for use. Specifically, when the table plate 50 is pulled by a hand, the rotating sleeve 54 arranged in the first hinge 52 rotates, the table plate 50 drives the outer surface of the rotating groove arranged in the second hinge 51 to press the spherical surface of the adjusting shaft 57, the inclined surface at the lower end of the adjusting shaft 57 pushes the transverse shaft 58 to move in the long hole 523, the transverse shaft 58 moves out of the positioning groove of the armrest box 3, the transverse shaft 53 moves the compression spring 59, and at the moment, the tea table is pulled out and rotates for 180 degrees; then the table plate 50 is turned over 90 degrees towards the inner side of the seat body 1, specifically, the second hinge 51 drives the table plate 50 to rotate through the hinge shaft 53, the spherical surface at the upper end of the adjusting shaft 57 is separated from the outer surface of the rotating groove to move upwards, the transverse shaft 58 restores to the initial position, namely the transverse shaft 58 is positioned and locked in the positioning groove of the armrest box 3, and the stable use state is kept. When withdrawing the tea table 5, the tea table 5 can be accommodated in the armrest box 3 through the reverse operation process.

The armrest box is not provided with the cover body, the upper end surface of the armrest box is a plane, and the armrest box can be hidden inside the armrest box when a tea table is not used. The front tea table is arranged on the seat, and can be directly pulled out from the front end of the armrest box and folded and positioned for use during use, so that the complex operation process in the prior art is optimized, and the use is more convenient.

EXAMPLE III

As shown in fig. 1-2, based on the first and second embodiments, the chair further comprises a pedal 6, wherein the pedal 6 is disposed below the chair body 1 and used for simultaneously controlling the lifting of the leg rest device 4 and the adjustment of the direction of the chair body 1. Be provided with pedal 6 in seat body below, can realize that leg holds in the palm device 4 and goes up and down, open the rotatory self-locking of seat body simultaneously, adjust the rotatory 180 change directions of seat body, carry out the adjustment of seat direction according to the traffic direction of vehicle, avoid the passenger because of taking the uncomfortable condition such as carsickness that appear in the reverse direction.

Therefore, the invention provides a novel seat with a leg support, which has the advantages of simple structure, convenience in use, easiness in maintenance, attractive appearance and excellent practical performance. The invention is suitable for any seat needing to be provided with the leg support and the tea table.

The above embodiments are only for illustrating the technical concept and features of the present invention, and it should be understood that the contents of the present invention can be understood and implemented by those skilled in the art, and the protection scope of the present invention is not limited thereby, and all equivalent changes or modifications made according to the technical scheme and technical concept of the present invention should be covered within the protection scope of the present invention.

Claims

1. A novel seat with a leg rest, characterized in that it comprises a seat body (1), a seat back (2), an armrest box (3) and a leg rest device (4); the seat back (2) is hinged with the seat body (1), and a headrest (21) is also provided on the top of the seat back (2); the armrest box (3) is arranged on one side of the seat body (1);

The leg rest device (4) is arranged on the front side of the seat body (1), and includes a leg rest plate (40), a leg rest main frame (41), a gas spring (43), and a link mechanism (45) and a support plate (46), the link mechanism (45) and the support plate (46) are symmetrically arranged on both sides of the leg support plate (40); the leg support main frame (41) includes a rotating shaft ( 411) and a support rod (412) symmetrically arranged at both ends, a shaft sleeve (42) is symmetrically arranged at both ends of the rotating shaft (411), and the shaft sleeve (42) is fixedly connected to the seat body (1); The gas spring (43) is connected with the leg rest main frame (41) through a linkage plate (44), one end of the linkage plate (44) is hinged with the gas spring (43), and the other end is connected with the rotating shaft (411) Fixed connection; the link mechanism (45) includes a first link (451), a second link (452) and a third link (453), one end of the first link (451) It is hinged with the inner wall of the leg support plate (40), the middle part of the first link (451) is hinged with the support rod (412), and the other end of the first link (451) is hinged with the first link (451). One end of the second link (452) is hinged; the other end of the second link (452) is fixedly connected to one end of the third link (453); the other end of the third link (453) is connected to the The seat body (1) is hinged; one end of the support plate (46) is hinged with the support rod (412), and the other end is hinged with the inner wall of the leg support plate (40).

2 . The novel seat with leg rests according to claim 1 , wherein the first link ( 451 ) is set in a V-shape to prevent a linkage dead point. 3 .

3. The novel seat with leg rests according to claim 1, wherein the third connecting rod (453) is L-shaped, and the L-shaped long part is provided with two threaded holes, and the second connecting rod (453) has two threaded holes. The rod (452) is fixedly connected with the third link (453) through two screws.

4 . The novel seat with leg rests according to claim 1 , further comprising a tea table ( 5 ), the tea table ( 5 ) is set as a front-type tea table, and the tea table ( 5 ) ) is hinged to the inner side wall of the armrest box (3) and stored in the interior of the armrest box (3).

5 . The novel seat with leg rests according to claim 4 , wherein the tea table ( 5 ) comprises a table board ( 50 ) and a second hinge fixedly connected with the table board ( 50 ). 6 . (51) and a first hinge (52) hinged with the second hinge (51) through a hinge shaft (53); the front side of the first hinge (52) is provided with a stepped hole (521), A rotating sleeve (54) is installed in the small hole of the step hole (521), and a positioning shaft (56) is arranged in the rotating sleeve (54) to position the first hinge (52) on the armrest box (3). ); the upper end face of the first hinge (52) is provided with a first circular hole (522), and an adjusting shaft (57) is installed in the first circular hole (522); the first hinge (52) ) The front side is also provided with a long hole (523), a horizontal shaft (58) is installed in the long hole (523), and both ends of the horizontal shaft (58) are installed in the positioning grooves of the armrest box (53). Inside; a second round hole (524) is opened on the right side of the first hinge (52), a spring (59) is installed in the second round hole (524), and one end of the spring (59) is connected with The outer surface of the horizontal shaft (58) is in contact with the outer surface, and the other end is fixed in the second circular hole (524) by screws; the elongated hole (523) is connected to the first circular hole (522), the second circular hole The holes (524) are connected through.

6. The novel seat with leg rests according to claim 5, characterized in that the upper end surface of the adjusting shaft (57) is set as a spherical surface, the lower end surface is set as an inclined surface, and the inclined surface is connected to the horizontal axis (58). ) in contact with the outer surfaces.

7 . The novel seat with leg rests according to claim 5 , wherein a compression spring ( 55 ) is installed in the large hole of the step hole ( 521 ), and the compression spring ( 55 ) passes through the The positioning shaft (56) is fixed in the stepped hole (521).

8 . The novel seat with leg rests according to claim 5 , wherein a threaded hole ( 581 ) is formed in the middle of the horizontal shaft ( 58 ), and a limit shaft is threadedly connected to the threaded hole ( 581 ). (582), the limiting shaft (582) is inserted inside the spring (59).

9 . The novel seat with leg rests according to claim 6 , wherein a rotating groove is provided on the lower end surface of the second hinge ( 51 ), and the outer surface of the rotating groove is connected to the The spherical surface of the adjustment shaft (57) is adapted.

10. The novel seat with leg rests according to any one of claims 1-9, characterized in that it further comprises a footrest (6), wherein the footrest (6) is arranged on the seat body (1). ) is used to control the lifting and lowering of the leg rest device (4) and the adjustment of the direction of the seat body (1) at the same time.