CN109106121B

CN109106121B - Seat tool

Info

Publication number: CN109106121B
Application number: CN201811171709.2A
Authority: CN
Inventors: 罗云; 甘云
Original assignee: Eavy Medical Instruments Shanghai Co ltd
Current assignee: Eavy Medical Instruments Shanghai Co ltd
Priority date: 2018-10-09
Filing date: 2018-10-09
Publication date: 2023-11-28
Anticipated expiration: 2038-10-09
Also published as: CN109106121A

Abstract

The invention provides a seat, comprising: a seat plate corresponding to the buttocks of the user; the waist plate is corresponding to the waist of a user and is rotatably arranged on the seat plate; a support for supporting the lumbar plate so that the lumbar plate is stabilized at a working state position corresponding to a working state sitting posture of a user or at a resting state position corresponding to a resting state sitting posture of the user, the support having a support cross bar portion; and a movement path control assembly for controlling movement of the support rail in a movement path formed between the working state position, the rest state position, and an adjustment position passed in the process from the working state position to the rest state position.

Description

Seat tool

Technical Field

The invention belongs to the field of daily necessities, and relates to a seat.

Background

Seats, stools and the like are an indispensable part of the daily life and work of people. The chair is provided with a backrest, and can support the back of a human body when a user leans back, so that the user feels comfortable, and the chair is very widely used.

In operation, to facilitate placement of both hands on a desk, a user typically assumes a forward leaning or sitting position, i.e., with the torso leaning forward or upright, and with the lumbar back away from the back of the seat. At this time, the backrest cannot be attached to the lumbar back, so that support cannot be formed on the lumbar back, and the weight of the upper body of the user is transferred to the pelvic bone through the spinal column, so that the pelvic bone rotates backwards around the ischium, the normal forward protruding curvature of the lumbar vertebra is reduced, the back opening angle between the lumbar vertebrae is increased, and finally the lumbar disc herniation is caused. Meanwhile, the posture of the trunk leaning forward enables the lumbar region of the human body to protrude backwards, and the posture of the trunk standing upright enables the user to keep muscle strength, so that passive stretching and fatigue of the lumbar muscle are easily caused, and lumbar muscle strain is finally caused.

In order to fit and support the waist and back of a user in different sitting postures, some seats with adjustable backrests have been developed in the prior art, for example, some seats implement an angle adjustment between the backrests and the seat plate by means of an angle adjuster or similar angle adjustment mechanism. However, angle adjusting mechanisms such as angle adjusters usually need to rely on locking mechanisms to realize angle locking, and users need to unlock the locking mechanisms by control components such as handles or control rods to realize angle adjustment, so that the operation is troublesome; meanwhile, if the control parts such as the handle or the control rod are arranged at the positions which are easy to contact with the hands of a user, such as the front side surface of the seat, the control parts are easy to collide with the user, and if the control parts are arranged at the positions which are below or behind the seat and are not easy to collide with the user, the user can bend down or twist the waist to operate, so that the seat is very inconvenient to use.

Disclosure of Invention

In order to solve the problems, the waist plate of the seat can be supported at the positions corresponding to different sitting postures of a user, and the seat does not need complex operation in the switching process of the different positions, the invention adopts the following technical scheme:

the invention provides a seat, which is characterized by comprising: a seat plate corresponding to the buttocks of the user; the waist plate is corresponding to the waist of a user and is rotatably arranged on the seat plate; a support for supporting the lumbar plate so that the lumbar plate is stabilized at a working state position corresponding to a working state sitting posture of a user or at a resting state position corresponding to a resting state sitting posture of the user, the support having a support cross bar portion; and a movement path control assembly for controlling the movement of the support rail portion in a movement path formed between the working state position, the rest state position, and an adjustment position passed in the process from the working state position to the rest state position, wherein once the waist plate in the working state position is pushed forward by a user, the movement path control assembly controls the movement of the support rail portion from the working state position to the adjustment position and moves to the rest state position following the backward tilting of the user, and once the waist plate in the rest state position is pushed forward by the user, the movement path control assembly controls the movement of the support rail portion from the rest state position directly to the working state position.

The seat provided by the invention can be further characterized in that the movement path control assembly comprises a path guide member for providing a movement path, the path guide member is provided with a path part and a limiting groove part, the path part is in contact with the support cross bar part and forms the movement path, the path part is provided with a limiting end part, the limiting end part is mutually abutted with the support cross bar part to limit the support cross bar part to a rest state position, and the limiting groove part is arranged on the path part, so that a user can enter the limiting groove part after pulling the waist plate in the forward tilting direction to enable the support cross bar part to leave the limiting end part, and the support cross bar part is limited to a working state position.

The seat provided by the invention can be further characterized in that the moving path control assembly further comprises a path adjusting piece for adjusting the moving path, the path adjusting piece is slidably arranged on the path guiding piece and is provided with a containing part for containing the supporting cross rod part, the path guiding piece is further provided with an adjusting end part corresponding to the adjusting position, the containing part is provided with a path adjusting surface, when a user further dials the waist plate in the forward tilting direction to separate the supporting cross rod part from the limiting groove part, the path adjusting piece is driven by the supporting cross rod part to slide to reach and support at the limiting groove part, so that the supporting cross rod part moves on the path adjusting surface and further moves from the adjusting end part to the limiting end part along a path different from the path entering the limiting groove part through the limiting groove part.

The seat according to the present invention may be characterized in that the receiving portion is a closed annular member or an open annular member fitted over the support cross member, and the path adjustment surface is a plane surface located on an inner surface side of the annular member.

The seat provided by the invention can be further characterized in that the path guide piece is further provided with a first sliding rail part continuously formed along the edge parts of the two sides of the path part, and the two sides of the path adjusting piece are further provided with the protruding parts arranged on the sliding rail parts, so that the path adjusting piece can be driven by the supporting cross bar part to slide.

The seat provided by the invention can also have the technical characteristics that the first sliding rail part is in a groove shape or an L shape when seen from the section.

The seat provided by the invention can be further characterized in that the path guide piece is further provided with a second sliding rail part continuously formed along the edge parts of the two sides of the limit groove part, the end part of the second sliding rail part is communicated with the first sliding rail part, and the width of the accommodating part corresponds to the distance between the second sliding rail parts, so that when the path adjustment piece reaches the limit groove part under the driving of the support cross bar part, the accommodating part enters the limit groove part along the path formed by the second sliding rail part, and the path adjustment piece and the support cross bar part are limited in the limit groove part together.

The seat provided by the invention can be further characterized in that a supporting piece part is further arranged at the position of the path adjusting part close to the adjusting end part, and the supporting piece part is abutted against the cover part when the path adjusting part is driven by the supporting cross rod part to slide to reach and support at the limiting groove part.

The seating apparatus provided by the invention may have a technical feature in that the moving path control assembly further has a cover member covering the path guide member, the cover member having a pressing piece extending toward the path adjustment member for pressing the path adjustment member when the path adjustment member is supported at the limit groove portion so as to hold the path adjustment member at the limit groove portion.

The seat provided by the invention can be further characterized in that a first clamping block is arranged on one side surface of the path adjusting piece, which is close to the cover piece, a second clamping block is arranged at a position, corresponding to the first clamping block, of the pressing piece, and the first clamping block and the second clamping block are mutually abutted when the pressing piece is pressed against the path adjusting piece.

The seat provided by the invention may have a technical feature in that the accommodating portion is an open annular member having a free end extending toward the cover, and the first clip is provided on the free end.

The seat provided by the invention can also have the technical characteristics that the pressing sheet is an elastic polymer material sheet integrally formed with the cover piece.

The seat provided by the invention can also have the technical characteristics that the pressing sheet is rotatably fixed on the cover member through the rotating shaft, and the moving path control assembly also comprises a spring with two ends respectively connected with the cover member and the pressing sheet.

The seating furniture provided by the invention may have a technical feature in that the support member further has a connection rod portion extending from the support cross bar portion, and an end portion of the connection rod portion is mounted on the mounting hole located on the seating board so that the support member can be rotated with respect to the seating board.

The seat provided by the invention can also have the technical characteristics that the upper part of the waist plate is a waist supporting part, and the waist supporting part has radian which is suitable for the waist of a human body.

The seat provided by the invention can also have the technical characteristics that two connecting parts which extend downwards from the lumbar support part are arranged on two sides of the lower part of the waist plate, and the two connecting parts are respectively arranged on the seat plate through the rotating shaft, so that the waist plate can rotate relative to the seat plate.

The seat provided by the invention can also have the technical characteristics that: the seat surface is made of flexible materials and continuously covers the seat plate and the waist plate.

The actions and effects of the invention

According to the seat provided by the invention, the moving path control component can control the moving path of the supporting cross bar part, so that when a user dials the waist plate in the rest state forward, the supporting cross bar part moves to one adjusting position and then moves to the rest state position, and when the user dials the waist plate in the rest state forward, the supporting cross bar part directly moves from the rest state position to the working state position, and therefore, the user can change the state of the seat only by performing one action of toggling the waist plate forward. Therefore, the seat disclosed by the invention can adapt to different sitting postures of a user, and the user can realize adjustment operation without an additional adjusting device, so that the seat is simple and easy to use.

Drawings

Fig. 1 is a schematic structural view of a seat according to a first embodiment of the present invention;

fig. 2 is a schematic side view of a seat according to a first embodiment of the present invention;

fig. 3 is an exploded view of a seat according to an embodiment of the present invention;

FIG. 4 is a schematic view of a path guide according to a first embodiment of the present invention;

FIG. 5 is a schematic elevational view of a path guide according to a first embodiment of the invention;

FIG. 6 is a cross-sectional view taken along A-A of FIG. 5;

FIG. 7 is an enlarged view of a portion of the travel path control assembly with the cover removed in accordance with the first embodiment of the present invention;

fig. 8 is a schematic perspective view of a path adjuster according to a first embodiment of the present invention;

FIG. 9 is a schematic side view of a path adjuster according to a first embodiment of the present invention;

FIG. 10 is a schematic view of a cover member according to a first embodiment of the present invention;

FIG. 11 is a B-B cross-sectional view of FIG. 10;

fig. 12 is a schematic side view of a seat in a different state according to the first embodiment of the present invention;

FIG. 13 is a schematic diagram of the operation of the motion path control assembly according to the first embodiment of the present invention;

fig. 14 is a schematic view of a seat structure according to a second embodiment of the present invention;

FIG. 15 is a schematic view of a path adjuster and a cover according to a third embodiment of the present invention;

fig. 16 is a schematic structural view of a path adjuster and a cover according to a fourth embodiment of the present invention.

Detailed Description

The following describes specific embodiments of the present invention with reference to the drawings and examples.

In the following embodiments, the front refers to the forward tilting direction of the user (i.e., the direction in which the user faces), and the rear refers to the backward tilting direction of the user (i.e., the direction in which the user faces away); similarly, the up-down direction also refers to the up-down direction of the user, and the left-right direction also refers to the left-right direction of the user, respectively.

Example 1

Fig. 1 is a schematic structural view of a seat according to a first embodiment of the present invention, fig. 2 is a schematic structural view of a seat according to a first embodiment of the present invention, and fig. 3 is a schematic explosive structural view of a seat according to a first embodiment of the present invention.

As shown in fig. 1, 2 and 3, the seat 100 according to the first embodiment of the present invention includes a seat 10, a lumbar plate 20, a support 30, a movement path control module 40 and a seat surface 50.

The seat plate 10 has a plate shape corresponding to the buttocks of the user and supports the buttocks of the user when in use. In addition, the lower surface of the seat 10 is planar, and the seat 10 can be placed on other seats with support legs when in use, so as to be matched with the seats.

The lumbar plate 20 corresponds to the waist of the user and is used to support the waist of the user in use. The upper part of the waist plate 20 is a waist supporting part 21 which has a radian corresponding to the waist of a human body; on both sides of the lower portion of the lumbar plate 20 are two connection portions 22 extending downward from the lumbar support portion 21, and the two connection portions 22 are respectively mounted on the seat plate 10 through rotation shafts 23 so that the lumbar plate 20 can rotate relative to the seat plate 10.

The support 30 is used to support the lumbar plate 20 so that it can be stabilized in the working state position or the rest state position. The waist plate 20 is positioned at a front position, and thus can support the waist of the user in a forward-leaning or sitting state (i.e., an operating state) in response to the position of the waist of the user; the rest state position of the lumbar plate 20 is a rearward position, and thus can correspond to the position of the user's lumbar region in a reclined state (i.e., rest state), thereby supporting the user's lumbar region.

In this embodiment, the seat surface 50 is a sheet made of flexible fabric, which covers the seat 10 and the waist plate 20, so that the waist and the buttocks are in direct contact with the seat surface 50 when the user sits on the seat 100.

The support member 30 has a support rail portion 31 for supporting the waist panel 20; the support rail portion 31 is provided at both ends thereof with one connecting rod portion 32, and ends of the two connecting rod portions 32 remote from the support rail portion 31 are fitted into mounting holes (not shown) provided in the seat plate 10 so that the support member 30 can be rotated with respect to the seat plate 10 to support the lumbar plate 20 at different positions by the support rail portion 31. The movement of the support member 30 and the waist plate 20 between the different positions will be described in detail later in connection with the movement path control assembly 40.

The movement path control assembly 40 is used for controlling the movement of the support rail 31 in a movement path formed between an operating state position, a rest state position and an adjustment position passing from the operating state position to the rest state position, and includes a path guide 41, a path adjuster 42 and a cover 43.

The path guide 41 is fixedly installed on the rear side of the waist plate 20, the path adjuster 42 is provided on the path guide 41, and the cover 43 covers the path guide 41 and the path adjuster 42. The cover 43 is fixedly mounted on the waist plate 20 by bolting, so that the cover 43 and the path guide 41 are mutually fixed, and the path adjusting member 42 is movable in a space formed between the path guide 41 and the cover 43 because there is no structure of fixedly connecting the path adjusting member 42, the path guide 41 and the cover 43. Further, since the support rail 31 is fitted in the path adjuster 42, but there is no fixed connection with the path adjuster 42, the support rail 31 is movable not only with respect to the path adjuster 42 but also with respect to the path guide 41 and the cover 43.

Fig. 4 is a schematic structural view of a path guide according to the first embodiment of the present invention, fig. 5 is a schematic structural view of the path guide according to the first embodiment of the present invention in front view, and fig. 6 is a sectional view taken along A-A of fig. 5.

As shown in fig. 4 to 6, the path guide 41 has two path portions 411 and one connecting piece 412. The path portions 411 are identical in shape and symmetrically arranged, the connecting piece 412 is located between the two path portions 411, and both sides of the connecting piece are fixedly connected to the two path portions 411 respectively.

Fig. 7 is a partial enlarged view of the movement path control assembly after removing the cover member according to the first embodiment of the present invention.

As shown in fig. 4 to 7, the horizontal direction length of the support rail portion 31 is slightly longer than the distance between the outer side edges of the two path portions 411, and thus the support rail portion 31 can be disposed on the path portions 411 while being in contact with the surfaces of the two path portions 411. In the present embodiment, the surfaces 41A of both path portions 411 extend downward slightly obliquely, and the support rail portion 31 can be moved upward or downward along the surfaces, so that a movement path is formed that can move the support rail portion 31.

The upper ends of both path portions 411 have a certain protruding structure, and when the support rail portion 31 moves up to the protruding structure along the path portions 411, it is not possible to continue upward any more, so that the protruding structure forms a limit end portion 41C that can limit the support rail portion 31. That is, the position of the stopper end 41C is the upper end point of the movement path of the support rail 31.

As shown in fig. 4 and 7, each of the two path portions 411 has a recess portion, i.e., a limit groove portion 41B. When the support rail portion 31 moves downward from the stopper end portion 41C, it is possible to enter the stopper groove portion 41B along the surface of the recessed portion of the path portion 411. Thereby, the surface of the limit groove portion 41B that contacts the support rail portion 31 also constitutes a part of the moving path.

The angle between the upper surface of the recessed portion and the horizontal plane is small, so that the support rail portion 31 is difficult to slide out of the limit groove portion 41B from the upper surface after moving downward and entering the limit groove portion 41B, i.e., is restricted in the limit groove portion 41B. In addition, since the angle between the lower surface of the concave portion and the horizontal plane is large, the support rail portion 31 can slide out of the limit groove portion 41B along the lower surface relatively easily when continuing to move downward.

In the present embodiment, the path guide 41 further includes a first rail portion 41D and a second rail portion 41E.

As shown in fig. 4 and 5, the edge portions on both sides of the path portion 411 (i.e., the edge portions of the two path portions 411 near the connecting piece 412) have two continuous first rail portions 41D; the edge portions of both sides of the stopper groove portion 41B (i.e., the edge portions near the connecting piece 412 at the recessed portions of the two path portions 411) have two continuous second slide rail portions 41E. The second rail portion 41E is located further inside than the first rail portion 41D (i.e., closer to the connecting piece 412) as viewed in the plane direction of fig. 5, and therefore, the distance L1 between the two first rail portions 41D is larger than the distance L2 between the two second rail portions 41E. Meanwhile, the upper end portions of the second rail portions 41E are all terminated on the first rail portions 41D, so that the end portions of the second rail portions 41E are in communication with the first rail portions 41D.

Specifically, as shown in fig. 6, the first slide rail portion 41D is continuously formed along the path portion 411 and ends at the limit groove portion 41B; the lower portion of the second rail portion 41E is continuously formed along the lower portion of the restricting groove portion 41B, and extends substantially obliquely upward along the restricting groove portion 41B, with the upper end portion thereof ending at the intermediate position of the first rail portion 41D, i.e., at the point X. Thereby, the first rail portion 41D and the second rail portion 41E are communicated at the point X.

Since the first rail portion 41D and the second rail portion 41E are each formed by sagging at the edge portions, the first rail portion 41D and the second rail portion 41E each have an L-shape in terms of a transverse cross section of the path guide 41 (i.e., a cross section taken in a direction perpendicular to the A-A cross section line in fig. 5).

As shown in fig. 5 and 6, the connecting piece 412 is fixed to the path 411 at both sides thereof, and has a rectangular through hole 4121 having a width L3 at its center portion. In the present embodiment, the through hole 4121 is formed along the inner edges of the two path portions 411 (i.e., the edges of the path portions 411 near the connecting piece 412), so the width L3 of the through hole 4121 corresponds to the inner pitch of the two path portions 411.

Fig. 8 is a schematic perspective view of a path adjuster according to a first embodiment of the present invention, and fig. 9 is a schematic side view of the path adjuster according to the first embodiment of the present invention.

As shown in fig. 8 and 9, the path adjuster 42 is an integrally formed member having a receiving portion 421, a protruding portion 422, a stay portion 423, a first latch 424, and a slider portion 425.

The accommodating portion 421 is an open annular member, and has a width of about L2. When the seat 100 is assembled, the support rail portion 31 is received in the receiving portion 421 (i.e., the receiving portion 421 is fitted over the support rail portion 31).

As shown in fig. 7 and 8, the portion of the accommodating portion 421 that contacts the path guide 41 is a flat plate-like structure, that is, a flat plate portion 4211. The portion opposite to the flat plate portion 4211 is an opening of a ring structure, and the opening has two free ends, i.e., a first free end 4212 and a second free end 4213. Wherein the first free end 4212 extends in a direction facing away from the path guide 41 (i.e. in a direction towards the cover 43).

In addition, the inner side surface of the flat plate portion 4211 (i.e., the surface corresponding to the support rail portion 31) is a plane having an effect of adjusting the movement path of the support rail portion 31, which will be hereinafter referred to as a path adjustment surface 421A, and a specific adjustment effect will be described in detail later.

In this embodiment, the accommodating portion 421 is made of a polymer material with certain toughness and elasticity, so that the first free end 4212 has good elasticity (i.e. the property of bending after being pressed and recovering after the pressure is removed). In addition, the first latch 424 is located on an outer side surface (i.e., an outer surface facing the cover 43) of the first free end 4212, and the first latch 424 is triangular in side view.

The number of the protrusions 422 is two, and the protrusions are symmetrically provided on both sides of the upper portion of the flat plate portion 4211. The distance between the outer side ends of the two protruding portions 422 is about L1, and therefore the two protruding portions 422 can be engaged with the two first rail portions 41D so that the path adjuster 42 slides along the first rail portions 41D. In addition, the surfaces of the two protruding portions 422 that contact the first rail portion 41D are both curved surfaces.

As shown in fig. 5 to 7, since the width of the receiving portion 421 is about L2 and the distance between the two protruding portions is about L1, the receiving portion 421 is supported on the first rail portion 41D when the receiving portion 421 slides from the upper end portion of the first rail portion 41D to the point X (i.e., along the path S1). When the accommodating portion 421 slides to the X point, the second slide rail portion 41E can be entered and slid along the second slide rail portion 41E, and at this time, since the distance between the two ends of the protruding portion 422 is about L1 and greater than L2, the protruding portion 422 cannot enter the second slide rail portion 41E and continues to slide along the first slide rail portion 41D. Since the surfaces of the two protruding portions 422 contacting the first rail portion 41D are curved surfaces, when the sliding paths of the accommodating portion 421 and the protruding portions 422 are not identical, the curved surfaces form a rotating shaft structure, so that the accommodating portion 421 can rotate at the X point and enter the second rail portion 41E (and also enter the limiting groove portion 42B).

The supporting piece portion 423 is located at a lower portion of the receiving portion 421 and extends downward from the first free end 4212, and the supporting piece portion 423 has a width smaller than L2 and thus can be received between the two second rail portions 41E together with the receiving portion 421.

The slider portion 425 is located on the outer side surface of the flat plate portion 4211 facing the connection piece 412, and the width of the slider portion 425 is about L3, which is accommodated in the through hole 4121, and therefore both side outer surfaces in the longitudinal direction are always in contact with the inner side surface of the through hole 4121, so that the freedom of the accommodating portion 421 in the left-right direction is restricted when moving in the up-down direction, and the left-right shake does not occur during the up-down movement.

Fig. 10 is a schematic structural view of a cover member according to the first embodiment of the present invention, and fig. 11 is a B-B sectional view of fig. 10.

As shown in fig. 10 and 11, the cover 43 is an integrally formed member, and has a pressing piece 431 extending toward the path guide 41 at a central portion thereof, and a second latch 432 corresponding to the first latch 424 is disposed on the pressing piece 431.

The cover 43 of the present embodiment is also made of a polymer material with certain toughness and elasticity, so that the pressing piece 431 also has good elasticity (i.e. the property of bending after being pressed and recovering after the pressure is removed). Meanwhile, similar to the first latch 424, the second latch 432 is also triangular in side view.

Further, since the cover 43 has a rectangular sheet shape as a whole and has curved portions extending in the direction of the path guide 41 at the upper and lower ends thereof, after being attached to the waist plate 20 and covering the path guide 41, the cover 43 has a certain gap between the inner surface of the cover 43 and the surface 41A of the path portion 411, and the distance of the gap corresponds to the diameter of the support rail portion 31 so that the support rail portion 31 can move up and down between the path portion 411 and the cover 43.

The following describes the operation principle of the seat 100 of the present embodiment with reference to the drawings.

Fig. 12 is a schematic side view of a seat in a different state according to the first embodiment of the present invention.

In fig. 12, S1 is a seating apparatus in a rest state, S2 is a seating apparatus in an operating state, S3 is a seating apparatus in an adjustment state, F1 and F2 are rotation directions of the waist plate 20 when the user dials the waist plate 20 forward, and arrows between S1, S2 and S3 indicate a state change order of the seating apparatus 100.

As shown in fig. 12, the seat 100 of the present embodiment mainly has two different states, namely, a working state and a rest state. The operating state S2 corresponds to a user ' S operating state sitting posture (including a sitting posture with the waist tilted forward and a sitting posture with the waist upright), and the resting state S1 corresponds to a user ' S resting state sitting posture (a sitting posture with the waist tilted backward), and the two states can be switched by the user ' S movement of pulling the waist plate 20 (for example, pulling the waist plate 20 forward by grasping the edge of the waist plate 20 with a hand).

In addition, the seat 100 further has an adjustment state S3 that is passed when the seat 100 is switched from the operating state S2 to the rest state S1, and when the user dials the lumbar plate 20 of the seat 100 in the operating state S2 further forward, the seat 100 enters the adjustment state S3, and then rotates in the F3 direction under the action of the back thrust of the lumbar region of the user (i.e., the backward force exerted on the lumbar plate 20 by the lumbar region swinging backward when the user performs the reclining operation) to return to the rest state S1.

As described above, the position of the waist panel 20 is different in the seating apparatus 100 of different states due to the user's toggle action. Moreover, as the waist panel 20 is moved by the user, the position of the other components will change accordingly. In the following description, the position of each member corresponding to the rest state is referred to as a rest state position, the position corresponding to the operating state is referred to as an operating state position, and the position corresponding to the adjustment state is referred to as an adjustment position.

Fig. 13 is a schematic diagram of the operation of the movement path control assembly according to the first embodiment of the present invention.

In order to better explain the path control action of the movement path control unit 40 on the support rail 31, the movement path control unit 40 is enlarged and other structures are simplified in fig. 13, and the structures of the seat plate 10, the lumbar plate 20, the connection portion of the seat plate 10 and the lumbar plate 20, the connection portion of the support 30 and the seat plate 10, and the like are omitted.

As shown in fig. 12 and 13, since the connection portion 22 of the lower portion of the lumbar plate 20 is mounted to the seat plate 10 through the rotation shaft 23, the lumbar plate 20 can be rotated with respect to the seat plate 10 when the user dials the lumbar plate 20.

Meanwhile, since the support rail portion 31 is housed in the receiving portion 421 of the path adjusting member 42 and covered by the cover member 43, the receiving portion 421 is located on the path guide member 41, and thus the support rail portion 31 is restrained at the rear surface position of the waist plate 20 by the moving path control assembly 40. Accordingly, when the user dials the waist panel 20 to rotate the waist panel 20, since the support member 30 is rotatably fixed to the seat plate 10 through the connection rod portion 32, the support cross bar portion 31 will move with the rotation of the waist panel 20, and thus the support member 30 as a whole will also rotate.

Specifically, when the seat 100 is in the rest state S1, the lumbar plate 20 is positioned at a rear position, and the support rail portion 31 abuts against the stopper end 41C. In this state, if the user leans on the waist plate 20 in a reclined sitting position, the waist portion will exert a rearward force on the waist plate 20, and the abutment of the support rail portion 31 and the limiting end 41C will prevent the waist plate 20 from rotating rearward. Thus, a triangular supporting structure is formed among the lumbar plate 20, the seat plate 10 and the supporting member 30, and the limiting end 41C corresponds to the supporting point of the supporting member 30 and the lumbar plate 20.

When the user dials the waist panel 20 forward, the waist panel 20 rotates forward in the direction F1 shown in fig. 12. Since the support member 30 is rotatably fixed to the seat plate 10, the support member 30 is also slightly rotated forward by the lumbar plate 20, so that the triangle formed by the lumbar plate 20, the seat plate 10 and the support member 30 is deformed. During this process, the waist panel 20 has moved down at its point of contact with the support member 30. In the internal configuration shown in fig. 13, the support rail 31 moves downward along the surface 41A of the path 41.

As shown in fig. 13, in the rest state S1, the support rail portion 31 is located at the upper end portion of the receiving portion 421, and at this time, the second clamp block 432 on the pressing piece 431 is pressed against the surface of the supporting piece portion 423. At this time, the pressing piece 431 is in a deformed state to "press against" the path adjusting piece 42 so that the path adjusting piece 42 does not autonomously move. Only when the support rail portion 31 moves down to the lower end portion position of the receiving portion 421 and abuts against the inner side surface of the lower end portion, the path adjuster 42 is moved down by the support rail portion 31.

When the supporting cross bar 31 drives the path adjusting member 42 to move downward to the point X, the pressing piece 431 always has a tendency to return to the original shape, so that the pressing piece 431 applies a force to the path adjusting member 42 toward the path guiding member 41, so that the accommodating portion 421 turns around the rotation axis formed by the protrusion 422 at the point X, and then enters the limiting groove 41B along the second sliding rail 41E. At the same time, the support rail portion 31 is also guided by it into the limit groove portion 41B.

Since the upper inner surface of the limit groove 41B has a small angle with the horizontal plane, the support rail 31 cannot move out of the limit groove 41B from above the master-slave side after entering the limit groove 41B, but is abutted against the surface of the limit groove 41B, so that the lumbar plate 20 is supported by the path guide 41. At this time, the seat 100 reaches the operation state S2.

In this state, as shown in fig. 13, one surface of the first latch 424 contacts one surface of the second latch 432, so that the pressing piece 43 "hooks" the path adjusting piece 42, and the path adjusting piece 42 does not move downward by itself, which also plays a role in preventing the supporting rail portion 31 from moving out of the limiting groove portion 41B. Since the first latching block 424 is located on the first free end 4211, the first free end 4211 extends toward the cover 43, so that the two latching blocks are more easily engaged, and the pressing piece 43 can be hooked on the path adjusting member 42 without being released.

In addition, due to the elastic action of the pressing piece 43, the first and second clamping blocks 424 and 432 collide when reaching the state where the surfaces are in contact with each other, and a slight collision sound is generated, so that the user can know that the operation state S2 has been reached according to the collision sound, and thus the movement of pulling the lumbar plate 20 can be stopped and the use of the seat 100 can be started. Because the lumbar plate 20 is located relatively forward in the operating state S2, the user can lean the lumbar on the lumbar plate 20 in the sitting posture in the operating state, thereby supporting the lumbar.

When the user further dials the waist panel 20 in the operating state S2 forward, the waist panel 20 will be rotated further forward so that the support rail 31 is also moved further downward with respect to the waist panel 20. Accordingly, the path adjusting member 42 is also driven by the support rail 31, and moves downward out of the limit groove 41B after overcoming the "hooking" force of the pressing piece 43 and disengaging the pressing piece 43.

When the lower portion of the path adjuster 42 moves to the lower portion of the limit groove portion 41B, the stay portion 423 abuts against the inner side surface of the cover 43 to be "propped" against the cover 43, so that the path adjuster 42 and the support rail portion 31 do not move downward any more.

At this time, the upper portion of the path adjuster 42 is "caught" on the first rail portion 41D by the projection 422, and the lower portion is "caught" on the second rail portion 41E by the lower portion of the receiving portion 421, so that the path adjuster 42 assumes a state of being supported on the restricting groove portion 41B (i.e., being suspended on the restricting groove portion 41B). Meanwhile, the other surface of the first latch 424 and the other surface of the second latch 432 just contact each other, and the deformation restoring force of the pressing piece 43 is applied to the path adjusting piece 42 by the action of the two latches, so that the supporting piece portion 423 continuously abuts on the cover piece 43, and the path adjusting piece 42 cannot move upward or downward independently. In addition, the first free end 4211 extends toward the cover 43, and the first free end 4211 is also elastic, which also makes the first free end 4211 provide a certain resistance in the length direction (i.e. if the path adjusting member 42 moves upward, the path adjusting member 42 needs to be deformed against the elastic restoring force of the first free end 4211), so that the path adjusting member 42 is less prone to autonomous movement.

Thereby, the seat 100 reaches the adjustment state S3, and accordingly, the support rail 31 also reaches the adjustment position.

Similarly, due to the elastic action of the pressing piece 43, the first clamping block 424 and the second clamping block 432 collide and generate a collision sound when reaching the state that the other surface is contacted with each other, and the user can know that the adjustment state S3 is reached according to the collision sound, so that the movement of toggling the waist plate 20 can be stopped and the sitting posture adjustment can be performed, that is, the waist leans backwards and the sitting posture in the working state is changed into the sitting posture in the resting state.

During the sitting position adjustment of the user, the waist will rest against the waist panel 20 and exert a rearward force on the waist panel 20, causing the waist panel 20 to rotate rearwardly therewith. Accordingly, the support rail 31 moves upward relative to the lumbar plate 20. In this process, since the path adjuster 42 is always supported on the restricting groove portion 42B by the urging force of the presser 43, the support rail portion 31 can only continue to move on the path adjusting surface 421A so as to pass through the restricting groove portion 41B without entering the restricting groove portion 42B. That is, in this case, the support rail portion 31 moves upward via the restricting groove portion 42B along a different path from that when entering the restricting groove portion 42B. Then, the supporting rail portion 31 will reach the upper end portion of the receiving portion 421 and abut against the inner side surface of the receiving portion 421, thereby generating an upward force to the path adjuster 42, which force causes the path adjuster 42 to overcome the force of the pressing piece 431, resulting in the first and second clamping blocks 424 and 432 to be separated from each other, so that the path adjuster 42 can be moved upward by the supporting rail portion 31. Finally, the support rail 31 reaches the limit end 41C, so that the seat 100 returns to the rest state S1.

As described above, the transition process between the three states of the seat 100 of the present embodiment is always the rest state s1→the operating state s2→the adjustment state s3→the rest state S1 … …. That is, the seat 100 can be directly changed from the rest state S1 to the working state S2 by the user' S forward pulling the waist plate 20, and when the user pulls the waist plate 20 forward, the seat 100 must reach the adjustment state S3 before returning to the rest state S1. Accordingly, the path adjuster 42 cooperates with the path guide 41 and the cover 43 to control the support rail 31 to move as follows during the state transition of the seat 100: when the user dials the waist plate 20 in the rest state forward, the supporting cross bar part 31 moves to the adjusting position first, and then moves to the rest state position (i.e. at the limit end 41C) following the user's back; when the waist panel 20 in the rest state position is pushed forward, the support rail portion 31 is directly moved from the rest state position to the working state position (i.e., within the limit groove portion 41B).

Therefore, when the user uses the seat 100 of the present embodiment, if the sitting posture needs to be changed, the user only needs to lean forward on the upper body to leave the waist panel temporarily, then toggle the waist panel 20 by the opposite hand and stop toggling according to the collision sound between the clamping blocks, and the user does not need to leave the seat 100, and does not need to bend or twist the waist.

Effects and effects of the examples

According to the seat provided by the embodiment, the moving path control component can control the moving path of the supporting cross rod part, so that when a user dials the waist plate in the rest state forward, the supporting cross rod part moves to an adjusting position and then moves to the rest state, and when the waist plate in the rest state is toggled forward, the supporting cross rod part directly moves from the rest state to the working state, and therefore, the user can change the state of the seat only by toggling the waist plate forward. Therefore, the seat of the embodiment can adapt to different sitting postures of a user, and the user can realize the adjustment operation without an additional adjusting device, so that the seat is simple and easy to use.

In this embodiment, since the movement path control assembly includes three cooperating members, namely, a path guide member, a path adjustment member, and a cover member, wherein the path guide member is capable of providing a movement path of the support rail portion, the cover member is capable of restricting the support rail portion on the path guide member by covering the path guide member, and the path adjustment member is capable of changing the movement path of the support rail portion by being supported on the restriction groove portion, the support rail portion is capable of moving along predetermined different paths when the lumbar plate is moved, thereby achieving the effect of changing positions correspondingly as the lumbar plate is moved, and changing the state of the seat. In addition, the adjusting function can be realized only by three components, and the three components can be manufactured by molding through a mold, and can be mounted by only relying on fixing pieces such as screws, so that the manufacturing and the mounting are easy, and the cost is low.

In addition, because the cover member has the preforming, when adjusting the state, thereby the preforming can push down the path adjustment piece and keep the position of path adjustment piece on the spacing groove portion, and then can guarantee that support horizontal pole portion moves along the path adjustment face, and when operating condition, the preforming can hook the path adjustment piece thereby prevent that path adjustment piece is that support horizontal pole portion from deviating from spacing groove portion, consequently, the stability of path adjustment piece in adjustment state position and operating condition position all can be guaranteed, be difficult for taking place the displacement for it is more stable to the path adjustment effect of support horizontal pole portion. Accordingly, the state change process of the seat in the embodiment is more stable, and the situation of state change errors when the waist plate is stirred is avoided.

Further, since the receiving portion has the first free end extending toward the cover member, the first free end can be fitted with the pressing piece, so that the position stabilizing effect of the above-mentioned path adjusting member is further ensured.

Furthermore, the first clamping block arranged on the first free end and the second clamping block arranged on the pressing sheet are triangular, so that the first clamping block and the second clamping block are respectively provided with two surfaces which can be matched with each other. The mutual matching of the two clamping blocks not only further strengthens the position stabilizing effect, but also can send out collision sound when reaching the working state or the adjusting state, thereby prompting a user and enabling the user to correspondingly stop stirring the waist plate.

In the embodiment, the slider portion that sets up on the holding portion and the through-hole that sets up on the connection piece mutually support, let the route adjustment piece can not take place the skew in the left and right directions when removing, this stability that also can guarantee that this embodiment is at the state change in-process part removal.

< example two >

In the second embodiment, the same reference numerals are given to the same structures as in the first embodiment, and the same description is omitted.

Fig. 14 is a schematic view of a seat structure according to a second embodiment of the present invention. In fig. 14, some detailed structures are omitted for the sake of briefly showing the overall structure of the seat.

As shown in fig. 14, the seat 200 of the present embodiment has a seat 10, a lumbar plate 20, a support 30, a movement path control unit 40, and a seating surface (not shown) as in the first embodiment.

The difference from the first embodiment is that the support member 30 of the present embodiment is rotatably installed on the lumbar plate 20, and the movement path control assembly 40 is provided on the seat plate 10, and the support rail portion 31 is correspondingly located at the lower end portion of the support member 30 and is coupled with the seat plate 10 through the movement path control assembly 40.

In addition, the up-down direction of each member of the moving path control assembly 40 is opposite to that of the first embodiment, that is, the path guide 41, the path adjuster 42, and the cover 43 of the present embodiment are turned upside down as compared to the first embodiment. Thus, the stopper end 41C is positioned below the path guide 41, the stopper groove 41B is positioned above the path guide 41, and the stay portion 423 of the path adjuster 42 is positioned above.

Thus, the seat 200 of the present embodiment can also achieve the same state change as the first embodiment when the user dials the lumbar plate 20 forward, in which the movement process of the support rail portion 31 and other members is the same as the first embodiment but the up-down direction of the movement is opposite (for example, in the process of shifting from the rest state S1 to the operating state S2, the support rail portion 31 of the first embodiment moves downward but the support rail portion 31 of the present embodiment moves upward), and will not be described in detail here.

Example III

In the third embodiment, the same reference numerals are given to the same configurations as in the first embodiment, and the same description is omitted.

Fig. 15 is a schematic structural view of a path adjusting member and a cover member according to a third embodiment of the present invention.

As shown in fig. 15, the seat of the present embodiment is different from the seat 100 of the first embodiment in that the receiving portion 421 of the path adjusting member 42 is a closed ring shape. That is, the first free end 4211 and the second free end 4212 are integrally connected to each other.

The above-described structure of the present embodiment can also realize the same functions of engaging the holding portion and engaging the clip as in the first embodiment, but compared with the first embodiment, since the first free end 4211 provided with the first clip 424 does not exist, the pressure, the resistance, etc. to the path adjuster 42 when the first clip 424 and the second clip 431 are engaged with each other are provided by the elastic restoring force of the pressing piece 43, and therefore the pressing piece 43 needs to be made of a material with better elasticity and toughness to achieve the same effect as in the first embodiment.

Example IV

In the fourth embodiment, the same configuration as in the first embodiment is given the same reference numerals and the same description is omitted.

As shown in fig. 16, the seat of the present embodiment is different from the seat 100 of the first embodiment in that the cover 43 does not have the pressing piece 431 extending toward the path adjusting piece 42, but is a rigid integral member. Compared with the first embodiment, the pressure and resistance of the first latch 424 and the second latch 431 on the path adjusting member 42 are generated by the elastic restoring force of the first free end 4211, so that the path adjusting member 42 is made of a material with better elasticity and toughness to achieve the same effect as the first embodiment.

The above examples are only for illustrating the specific embodiments of the present invention, and the seating apparatus of the present invention is not limited to the scope described in the above examples.

In the above embodiment, the cover is provided with a pressing piece, and the elasticity of the pressing piece enables the first clamping block and the second clamping block to complete the hooking or abutting fit. However, in the present invention, instead of providing the elastic pressing piece on the cover, a rigid pressing piece may be rotatably mounted on the cover, and an end portion of the rigid pressing piece, which is far from the second clamping block, may be fixed to the cover by a spring, which can achieve the same effect as the embodiment, but the manufacturing and mounting thereof are more complicated than the embodiment because there is one more spring and the pressing piece is not integrally formed with the cover.

In the embodiment, the path guide is fixedly installed on the lumbar plate or the seat plate, but in the present invention, the path guide may be integrally formed with the lumbar plate or the seat plate.

In this embodiment, the through-hole is formed along the inner edges of the two path portions, and thus the width of the through-hole corresponds to the inner pitch of the two path portions. However, in the present invention, the through hole may be formed in a narrower width in the connecting piece, and the stability in the lateral direction when the path adjuster moves can be ensured by fitting the slider portion as long as the width is compatible with the width of the slider portion.

In the embodiment, the lower surface of the seat is a plane, so that the seat in the embodiment can be used on other seats. In the invention, however, the supporting legs can be arranged on the lower surface of the seat plate, so that the seat of the invention can be directly placed on the ground for use. Furthermore, the waist plate of the embodiment only corresponds to the waist of the user and forms support for the waist, but the waist plate can be prolonged and the accessory parts such as a neck rest and the like are arranged on the waist plate, so that the seat can also form support for other human body parts such as the neck and the like. In this structure, since the waist plate is larger in size and the weight is increased accordingly, the support member and each member of the movement path control assembly are preferably made of a stronger material.

Claims

1. A seating furniture, comprising:

a seat plate corresponding to the buttocks of the user;

a waist plate rotatably mounted on the seat plate corresponding to the waist of the user;

a support for supporting the waist plate so that the waist plate is stabilized at a working state position corresponding to a working state sitting posture of the user or at a resting state position corresponding to a resting state sitting posture of the user, having a support cross bar portion; and

a movement path control unit for controlling movement of the support rail in a movement path formed between the operating state position, the rest state position, and an adjustment position passed from the operating state position to the rest state position,

wherein, once the waist panel is shifted in the forward tilting direction by the user when in the working state position, the moving path control component controls the supporting cross bar part to move from the working state position to the adjusting position and move to the rest state position along with the backward tilting of the user,

once the waist panel is pushed forward by the user while in the rest state position, the movement path control assembly controls the support rail to move directly from the rest state position to the working state position, the movement path control assembly includes a path guide providing the movement path,

The path guide has a path portion contacting the support rail portion and forming the moving path and a limit groove portion,

the path portion has a limiting end portion which limits the support rail portion to the rest state position by abutting each other with the support rail portion,

the limit groove part is arranged on the path part, so that after the user dials the waist plate in the forward tilting direction to enable the support cross bar part to leave the limit end part, the support cross bar part can enter the limit groove part to be limited at the working state position, the moving path control assembly also comprises a path adjusting part for adjusting the moving path, the path adjusting part is slidably arranged on the path guiding part and provided with a containing part for containing the support cross bar part,

the path guide also has an adjustment end corresponding to the adjustment position,

the receiving portion has a path adjustment surface,

when the user further pulls the waist plate in the forward tilting direction to separate the supporting cross bar part from the limiting groove part, the path adjusting part is driven by the supporting cross bar part to slide to reach and support at the limiting groove part, so that the supporting cross bar part moves on the path adjusting surface and further moves from the adjusting end part to the limiting end part along a path different from the path entering the limiting groove part, the accommodating part is a closed annular part or an open annular part sleeved on the supporting cross bar part, the path adjusting surface is a plane positioned on the inner surface side of the annular part, the path guiding part is further provided with a first sliding rail part continuously formed along two edge parts of the path part,

The two sides of the path adjusting piece are also provided with protruding parts arranged on the sliding rail parts, so that the path adjusting piece can be driven by the supporting cross rod part to slide, the first sliding rail part is in a groove shape or an L shape when seen from the section, the path guiding piece is also provided with a second sliding rail part continuously formed along the two edge parts of the limiting groove part, the end part of the second sliding rail part is communicated with the first sliding rail part,

the width of the accommodating part corresponds to the distance between the second sliding rail parts, so that when the path adjusting part is driven by the supporting cross rod parts to reach the limiting groove parts, the accommodating part enters the limiting groove parts along the path formed by the second sliding rail parts, the path adjusting part and the supporting cross rod parts are limited in the limiting groove parts together,

the travel path control assembly also has a cover member overlying the path guide member,

the cover member has a pressing piece extending toward the path adjusting member for pressing the path adjusting member when the path adjusting member is supported at the limiting groove portion so as to hold the path adjusting member at the limiting groove portion,

A first clamping block is arranged on one side surface of the path adjusting piece, which is close to the cover piece, a second clamping block is arranged on the position of the pressing piece, which corresponds to the first clamping block,

the first clamping block and the second clamping block are mutually abutted when the pressing piece is in press connection with the path adjusting piece.

2. A seating product as defined in claim 1, wherein:

the path adjusting piece is driven by the supporting cross rod part to slide to reach and support the limiting groove part, and the supporting piece part is abutted to the cover part.

3. A seating product as defined in claim 1, wherein:

wherein the accommodating portion is an open annular member having a free end extending toward the cover, and the first clip is provided on the free end.

4. A seating product as defined in claim 1, wherein:

wherein, the preforming be with the elastic polymer material piece of lid integrated into one piece.

5. A seating product as defined in claim 1, wherein:

wherein the pressing piece is rotatably fixed on the cover member through a rotating shaft,

the moving path control assembly further comprises springs, wherein two ends of each spring are connected with the cover piece and the pressing piece respectively.

6. A seating product as defined in claim 1, wherein:

wherein the support further has a connecting rod portion extending from the support rail portion, an end of which is mounted on a mounting hole located at the seat plate such that the support can rotate relative to the seat plate.

7. A seating product as defined in claim 1, wherein:

the upper part of the waist plate is a waist supporting part which has radian suitable for the waist of a human body.

8. The seating product of claim 7 wherein:

two connecting parts extending downwards from the lumbar support part are arranged on two sides of the lower part of the waist plate and are respectively arranged on the seat plate through rotating shafts, so that the waist plate can rotate relative to the seat plate.

9. The seating product of claim 1, further comprising:

and the seat surface is made of flexible materials and continuously covers the seat plate and the waist plate.