CN210520530U

CN210520530U - Chair convenient to lift waist and lean on

Info

Publication number: CN210520530U
Application number: CN201921503082.6U
Authority: CN
Inventors: 丁雪东
Original assignee: Zhejiang Kanuo Office Furniture Co ltd
Current assignee: Zhejiang Kanuo Office Furniture Co ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-05-15
Anticipated expiration: 2029-09-10

Abstract

The utility model discloses a chair convenient to lift waist is leaned on belongs to furniture technical field. The side part of the chair back of the existing chair can only be of a hollow structure for realizing the holding of the side part of the waist support, and a reinforcing piece cannot be arranged in the middle of the chair back for the smooth lifting of the waist support, so that the structural strength of the chair is influenced. The utility model discloses through constantly exploring and experimental, the structure that can follow back of the chair top control waist support is set up, thinks about ingeniously, breaks the current technological bias that holds in the palm from back of the chair lateral part control waist. The utility model discloses the upper end of lift handle expose in the top of back spare, the lift handle upper end can expose in the back of the chair upper end promptly, and the user can follow the upper end of the back of the chair, realizes that the waist holds in the palm a lift altitude mixture control, compares and adjusts the waist from the lateral part of the back of the chair and holds in the palm the piece, changes in the operation, and user experience is good.

Description

Chair convenient to lift waist and lean on

Technical Field

The utility model relates to a chair convenient to lift waist is leaned on belongs to furniture technical field.

Background

Chinese patent (publication No. CN 207821489U) discloses a chair with lifting waist support, which solves the problem that the waist support position of the existing chair can not be adjusted generally, so that the waist support can not be accurately supported by the waist of the user when different users are seated, thereby the defects of discomfort in seating and poor applicability exist, the technical proposal is that, including the chair support and the chair back, the chair back comprises two vertical rods at two sides and an upper transverse rod and a lower transverse rod arranged between the two vertical rods, the front end surface of the chair back facing the chair support is provided with a mesh cloth with certain elasticity, two mesh cloths are arranged between the vertical rods, the two vertical rods face the front end surface of the chair support is provided with a sliding groove, the two ends of the waist support are provided with inserting blocks, the inserting blocks are movably clamped into the sliding groove and can slide up and down along the sliding groove, the waist supports after being adjusted, press the mesh cloths (corresponding to the back cover) to realize relative fixation, the chair back and the waist rest can be adjusted, so that the sitting is more comfortable and the applicability of the chair is better.

However, in the above solutions, the lumbar support can only be adjusted from the side of the chair back, and in order to grip the side of the lumbar support, the side of the chair back can only be of a hollow structure, and in order to smoothly lift the lumbar support, a reinforcement cannot be arranged in the middle of the chair back, which affects the structural strength of the chair.

Furthermore, the waist support and the lifting structure are exposed at the side part of the chair back, which affects the beautiful structure and poor visual perception of the chair.

SUMMERY OF THE UTILITY MODEL

To the defect of prior art, the utility model aims to provide a lift handle that upper end can expose in back of the chair upper end can follow the upper end of the back of the chair, realizes that the waist leans on lift altitude mixture control, is convenient for carry out the chair that the lift waist of being convenient for leaned on that strengthens to the lateral part hollow structure of the back of the chair.

Another object of the present invention is to provide a chair which can hide the waist rest and the lifting structure through the back panel fixed on the back side of the chair, and has a beautiful structure and good visual effect.

In order to achieve the above object, the technical solution of the present invention is:

a chair convenient for lifting and lowering a waist rest comprises a chair back with a frame structure, a back sleeve assembled on the chair back, and a waist rest part which can be directly or indirectly abutted against the back sleeve;

the waist support piece is assembled on the chair back through a lifting mechanism;

the lifting mechanism comprises a lifting handle and a back part which can be in sliding fit with the lifting handle;

the waist rest piece is fixedly connected with the lifting handle;

one of the lifting handle and the back part is provided with a sliding groove, and the other is provided with a sliding rail;

the upper end part of the lifting handle is exposed above the back piece;

the back part is fixedly connected on the chair back or fixedly connected on the chair back through a back plate.

The utility model discloses through constantly exploring and experimental, the structure that can follow back of the chair top control waist to lean on is set up, conceives ingeniously, breaks the technical bias that current control waist leaned on from back of the chair lateral part. The utility model discloses the upper end of lift handle expose in the top of back spare, the lift handle upper end can expose in the back of the chair upper end promptly, and the user can be followed the upper end of the back of the chair, realizes that the waist leans on a lifting height adjusting, compares and adjusts the waist from the lateral part of the back of the chair and leans on a, changes in the operation, and user experience is good.

Because the lifting handle can be operated from the upper part of the chair back, structures are arranged on the side part of the chair back, and the structures and the lifting handle cannot interfere with each other. Furthermore, for promoting the structural strength of the chair back, the utility model discloses can set up horizontal perpendicular enhancement slat or slice panel in the side of the chair back, strengthen the lateral part hollow structure of the chair back, simple structure, practicality, the scheme is feasible.

The waist back part can be directly abutted against the back sleeve, and also can be abutted against the back sleeve through sponge, rubber, cloth or other buffer materials, so that the comfort level of the chair is increased, and the influence on the normal use of the chair caused by the direct protrusion of the waist back part is avoided.

As a preferable technical measure: the lifting handle and the back piece are assembled in the middle of the chair back; the lifting travel of the lifting handle on the back part is A; the height of the lifting handle is B; the A < B. The lifting mechanism is arranged in the middle of the chair back, and the lifting synchronism of the waist support piece can be ensured.

In order to achieve the second purpose, the technical scheme of the utility model is that:

the front side surface of the chair back is fixedly connected with a back sleeve, and the rear side surface of the chair back is fixedly connected with a back panel; the back plate and the back sleeve form an accommodating cavity for assembling the lifting mechanism. The utility model discloses a back panel and back cover form hold the cavity, can hide the waist and lean on and elevation structure, and only the handheld position of lifting handle exposes in the visual department of outward appearance, and the outward appearance is succinct, makes the utility model discloses the structure is pleasing to the eye, and the visual sensation is good.

Meanwhile, the back plate is assembled in the hollow position of the chair back, so that the structural strength of the chair back and the chair can be effectively enhanced, and the chair back and the chair are suitable for various occasions.

As a preferable technical measure: the back part is fixedly connected on the back plate, and two sides of the back part are provided with slide rails; a sliding groove is formed in one side, facing the sliding rail, of the lifting handle; the length and the lift stroke phase-match of sliding tray, slide rail embedding sliding tray can carry out effective spacing to the migration range of lift handle for lift handle can only reciprocate, and simple structure is practical.

As a preferable technical measure: one side of the lifting handle facing the back sleeve is fixedly connected with the waist rest piece; the side facing the back plate is connected with the back piece in a sliding way.

As a preferable technical measure: the lifting handle both sides are inwards buckled and are formed the sliding tray, and its upper end is sunken to back plate one side and is formed the handheld slot part of being convenient for to grip, and handheld slot part is the horizontal cavity structures who sets up of opening, accords with the user and grips the custom to one hand just can operate the completion, excellent in use effect.

As a preferable technical measure: the sliding groove and the sliding rail are of arc-shaped or linear structures, the lifting guide direction of the sliding rail on the back component can be made into a straight line, oblique lines or arc lines, and the lifting guide direction can be selected at will according to actual requirements. Be equipped with the slip latch in the sliding tray, be equipped with the gliding removal latch of cooperation slip latch on the slide rail, the latch on slide rail and the spout interlocks each other, provides the friction damping and the gear effect of lift in-process for the lift handle can be fixed a position at arbitrary height, satisfies all kinds of users' demand, has promoted the operation simultaneously and has felt.

As a preferable technical measure: a limiting groove for limiting the moving stroke of the lifting handle is arranged at one of the middle positions of the lifting handle and the back piece, and a positioning column is arranged at the other one of the lifting handle and the back piece and extends into the limiting groove; the length of the limiting groove is matched with the lifting stroke of the lifting handle. The limiting groove is a long-strip-shaped hole, the length of the limiting groove is the lifting stroke of the waist support piece, when the waist support piece is lifted from the lowest position to the highest position, the bottom and the top of the limiting groove respectively block the positioning column, and the limiting effect is realized

As a preferable technical measure: the piece is leaned on to the waist for the lamellar structure that has certain radian, the lamellar structure symmetry is seted up two at least and is made the waist lean on the piece to have the cut-apart groove of certain deflection, and its effect is to lean on the piece to the waist and cut apart for the left and right sides that the waist leaned on the piece has elasticity, lets the human body back lean on occasionally the comfort, and the intermediate position can provide the position space of assembly lift handle.

As a preferable technical measure: the waist support piece is provided with at least one clamping strip protruding outwards at the position where the waist support piece is assembled with the lifting handle; the lifting handle is provided with a clamping groove at the position corresponding to the clamping strip. The waist is by in inserting the draw-in groove to the card strip on the piece for behind lifting handle and the waist by the piece link into an organic whole, people hold on handheld slot portion with the hand, can lean on the part with the waist and slide from top to bottom, thereby realize raising and lowering functions, simple structure is practical.

Compared with the prior art, the utility model discloses following beneficial effect has:

And then for promoting back of the chair structural strength, the utility model discloses can set up horizontal perpendicular enhancement slat or slice panel in the side of the back of the chair, strengthen the side structure of the back of the chair, simple structure, practicality, the scheme is feasible.

Further, the utility model discloses a back panel and the cavity that holds that back of the body cover formed can hide waist and lean on and elevation structure, and only the handheld position of lifting handle exposes in the visual department of outward appearance, and the outward appearance is succinct, makes the utility model discloses the structure is pleasing to the eye, and the visual sensation is good.

Drawings

FIG. 1 is a structural view of the back of the chair back of the utility model;

FIG. 2 is an exploded view of the chair back body of the present invention;

FIG. 3 is a view showing the waist support of the present invention in a raised and lowered state;

FIG. 4 is an exploded view of the lumbar support of the present invention;

fig. 5 is a partial sectional view of the present invention in a side view.

Description of reference numerals:

1. a chair back; 2. a lifting handle; 3. a back panel; 4. a back piece; 5. layering; 6. a plate connection member; 7. a lumbar support; 8. back sheathing; 9. a screw; 101. a first connecting hole position; 102. a second connecting hole site; 201. a hand-held slot portion; 203. a card slot; 204. a sliding groove; 2041. sliding latch teeth; 205. a limiting groove; 301. a positioning column; 401. a slide rail; 4011. moving the latch; 402. connecting screw holes; 701. dividing the groove; 703. and (6) clamping the strip.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in order to provide a better understanding of the present invention to the public, certain specific details are set forth in the following detailed description of the invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details.

It should be noted that when two elements are "affixed," the two elements can be directly connected or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "lateral," "upper," "lower," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1 to 5, a chair convenient for lifting and lowering a lumbar support comprises a chair back 1 with a frame structure, a back sleeve 8 assembled on the chair back 1, and a lumbar support 7 capable of directly or indirectly abutting against the back sleeve 8; the lumbar support 7 is assembled on the chair back 1 through a lifting mechanism; the lifting mechanism comprises a lifting handle 2 and a back piece 4 which can be in sliding fit with the lifting handle 2;

the waist support piece 7 is fixedly connected with the lifting handle 2; a sliding groove 204 and a sliding rail 401 are arranged on one of the lifting handle 2 and the back piece 4; the upper end part of the lifting handle 2 is exposed above the back piece 4; the back part 4 is fixedly connected to the chair back 1 or fixedly connected to the chair back 1 through a back plate 3.

The utility model discloses through constantly exploring and experimental, the structure that can follow 1 top control waist of the back of the chair and lean on is set up, conceives ingeniously, breaks the current technological bias that leans on from 1 lateral part control waist of the back of the chair. The utility model discloses the upper end of lift handle 2 expose in the top of back of the

chair

4, 2 upper ends of lift handle can expose in back of the chair 1 upper end promptly, and the user can follow the upper end of the back of the chair 1, realizes that the waist leans on 7 lift altitude mixture control, compares and adjusts the waist from the lateral part of the back of the chair 1 and leans on 7, changes in the operation, and user experience is good.

And then for promoting back of the chair 1 structural strength, the utility model discloses can set up violently perpendicular enhancement slat or slice panel in the side of the back of the chair 1, strengthen the side structure of the back of the chair 1, simple structure, practicality, the scheme is feasible.

The back part is constituteed to lumbar support piece 7, lift handle 2, back part is constituteed to back of the chair 1, backplate 3, back 4, and the back main part comprises lumbar support part, back cover 8.

The lifting handle 2 and the back part 4 are centrally assembled in the middle of the chair back 1; the lifting travel of the lifting handle 2 on the back part 4 is A; the height of the lifting handle 2 is B; the A < B. The lifting mechanism is arranged in the middle of the chair back 1, and can ensure the lifting synchronism of the waist support 7.

The front side surface of the chair back 1 is fixedly connected with a back sleeve 8, and the rear side surface thereof is fixedly connected with a back plate 3; the back plate 3 and the back cover 8 form a receiving cavity for assembling the lifting mechanism. The utility model discloses a back panel 3 and the cavity that holds that back of the body cover 8 formed can hide the waist and lean on and elevation structure, and only the handheld position of lifting handle 2 exposes in the visual department of outward appearance, and the outward appearance is succinct, makes the utility model discloses the structure is pleasing to the eye, and the vision is experienced.

The utility model discloses slide rail 401 and sliding tray 204 mounted position a concrete embodiment:

the back part 4 is fixedly connected on the back plate 3, and two sides of the back part are provided with slide rails 401; a sliding groove 204 is formed in one side, facing the sliding rail 401, of the lifting handle 2; the length and the lift stroke phase-match of sliding tray 204, slide rail 401 embedding sliding tray 204 can effectively be spacing to the migration range of lift handle 2 for lift handle 2 can only reciprocate, and simple structure is practical.

The utility model discloses lifting handle 2's mounted position embodiment:

one side of the lifting handle 2 facing the back sleeve 8 is fixedly connected with the waist rest part 7; the side facing the back plate 3 is slidably connected to the back piece 4.

The utility model discloses 2 structure embodiment of lift handle:

the both sides of lifting handle 2 are inwards bent to form sliding groove 204, and its upper end is sunken to back plate 3 one side and is formed the handheld slot part 201 of being convenient for to grip, and handheld slot part 201 is the horizontal cavity structures who sets up of opening, accords with the user and grips the custom to one hand just can operate the completion, excellent in use effect.

The utility model discloses sliding tray 204 and slide rail 401 concrete structure embodiment:

the sliding groove 204 and the sliding rail 401 are arc-shaped or linear structures, and the lifting guide direction of the sliding rail 401 on the back piece 4 can be made into a straight line, oblique line or arc line, and can be selected at will according to actual requirements. Be equipped with slip latch 2041 in the sliding tray 204, be equipped with the gliding removal latch 4011 of cooperation slip latch 2041 on the slide rail 401, the latch interlock each other on slide rail 401 and the spout provides the frictional damping and the gear effect of lift in-process for lift handle 2 can highly fix a position wantonly, satisfies all kinds of users' demand, has promoted the operation simultaneously and has felt.

The utility model discloses add limit structure's embodiment:

a limiting groove 205 for limiting the moving stroke of the lifting handle 2 is arranged at one position between the lifting handle 2 and the back piece 4, and a positioning column 301 is arranged at the other position, wherein the positioning column 301 extends into the limiting groove 205; the length of the limiting groove 205 is matched with the lifting stroke of the lifting handle 2. The limiting groove 205 is a long-strip-shaped hole, the length of the limiting groove is the lifting stroke of the waist, when the waist support 7 is lifted from the lowest position to the highest position, the bottom and the top of the limiting groove 205 respectively block the positioning column 301, and the limiting effect is realized

The utility model discloses a concrete embodiment of waist piece 7:

the piece is leaned on to the waist 7 is for having the lamellar structure of certain radian, the lamellar structure symmetry is seted up two at least and is made the waist to lean on piece 7 to have the cut-apart groove 701 of certain deflection, and its effect is to be cut apart the piece 7 by the waist for the left and right sides that the piece 7 was leaned on to the waist has elasticity, lets the human body back on comfort occasionally, and the intermediate position can provide the position space of assembly lift handle 2.

The utility model discloses the waist leans on

piece

7 and 2 connection structure concrete embodiments of lift handle:

the waist support piece 7 is provided with at least one clamping strip 703 protruding outwards at the position where the waist support piece is assembled with the lifting handle 2; the lifting handle 2 is provided with a clamping groove 203 at a position corresponding to the clamping strip 703. Card strip 703 on the waist leans on piece 7 inserts in draw-in groove 203 for behind lifting handle 2 and the waist leans on piece 7 to link into an organic whole, the staff grabs on handheld slot part 201, can lean on the part with the waist and slide from top to bottom, thereby realize raising and lowering functions, simple structure is practical.

Referring to fig. 1, the present invention accomplishes one embodiment of the assembly:

the visual components of the appearance of the installed chair back main body comprise a chair back 1, a lifting handle 2, a back plate 3, a back piece 4 and a back sleeve 8, wherein the back plate 3 and the back piece 4 can be subjected to color treatment to enhance the appearance color decoration effect, the lifting mechanism is hidden in the chair back main body, only the handheld groove part 201 of the lifting handle 2 is exposed at the visual part of the appearance, and the appearance is concise and attractive; the back cover 8 adopts a back-turning process to wrap the whole front surface and the large part of the back surface of the back, so that the mechanism is prevented from being exposed outside.

Referring to fig. 2, the present invention relates to an embodiment of a chair back main structure:

the chair back main body comprises a chair back 1, a connecting hole position, a lifting handle 2, a long guide post, an elastic switch, a back plate 3, a back part 4, a pressing strip 5, a plate connecting piece 6, a waist rest part 7 and a back sleeve 8, wherein the chair back 1 is a frame of the chair back main body and provides the functions of supporting the whole chair back 1 and connecting other accessories. The lifting handle 2 is an accessory for lifting the lumbar support part, wherein the holding groove 201 is a position for the user to put his hand thereon, and the lifting of the lumbar support part can be realized by upward or downward force. The back plate 3 and the back piece 4 are decoration accessories on the back surface of the chair back main body, and the left end and the right end of the back piece 4 are provided with slide rails 401 which play a role of sliding guidance. The batten 5 and the plate connecting piece 6 fix the back plate 3 on the chair back 1, and the connecting positions are a first connecting hole 101 and a second connecting hole 102 which are connected together through a screw 9. The waist support 7 provides the support function for the waist position of the human body, and the back cover 8 can be made of leather, cloth, hemp and other materials, provides the whole back support for the human body and hides the mechanism in the chair back 1.

Referring to fig. 3-5, the present invention is an embodiment of an assembly sequence:

the sliding groove 204 is inserted into the sliding rail 401 to realize lumbar support sliding, wherein the movable latch 4011 is a small raised tooth, is densely distributed on the sliding rail 401, and corresponds to the sliding latch 2041 on the lifting handle 2, so that friction damping and gear function in the lifting process are provided. The back piece 4 is provided with more than 2 connecting screw holes 402, the positions of which correspond to those of the back plate 3, and the back piece is arranged on the back plate 3 from front to back and is connected together through screws 9. The limiting groove 205 is a long-strip-shaped hole, the length of the limiting groove is the lifting stroke of the waist, and when the waist rest part is lifted from the lowest position to the highest position, the bottom and the top of the limiting groove 205 respectively block the positioning column 301, so that the limiting effect is realized. The clamping strip 703 on the lumbar support 7 is inserted into the clamping groove 203, and the lumbar support 7 is mounted on the lifting handle 2 through two screws 9. After the lifting handle 2 and the lumbar support 7 are connected into a whole, the waist support part can be slid up and down by holding the holding groove part 201 with hands, thereby realizing the lifting function.

In the application, the fastening mode can be a bolt connection, a welding, a riveting, an inserting connection or a connection through a third component, and the person skilled in the art can select the fastening mode according to the actual situation.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A chair convenient for lifting and lowering a lumbar support comprises a chair back (1) with a frame structure, a back sleeve (8) assembled on the chair back (1), and a lumbar support (7) capable of directly or indirectly abutting against the back sleeve (8); it is characterized in that the preparation method is characterized in that,

the waist support piece (7) is assembled on the chair back (1) through a lifting mechanism;

the lifting mechanism comprises a lifting handle (2) and a back piece (4) which can be in sliding fit with the lifting handle (2);

the waist support piece (7) is fixedly connected with the lifting handle (2);

a sliding groove (204) is arranged on one of the lifting handle (2) and the back piece (4), and a sliding rail (401) is arranged on the other;

the upper end part of the lifting handle (2) is exposed above the back piece (4);

the back piece (4) is fixedly connected on the chair back (1) or fixedly connected on the chair back (1) through a back plate (3).

2. A chair with easy lift lumbar support as claimed in claim 1, characterized in that said lift handle (2) and back piece (4) are centrally mounted in the middle of the back (1); the lifting travel of the lifting handle (2) on the back piece (4) is A; the height of the lifting handle (2) is B; the A < B.

3. The chair with the function of conveniently lifting the lumbar support as claimed in claim 1, wherein the front side of the chair back (1) is fixedly connected with the back sleeve (8), and the rear side thereof is fixedly connected with the back plate (3); the back plate (3) and the back sleeve (8) form an accommodating cavity for assembling the lifting mechanism.

4. A chair convenient for lifting and lowering the lumbar support as claimed in claim 1, wherein said back member (4) is fixed on the back plate (3), and two sides thereof are provided with slide rails (401); a sliding groove (204) is formed in one side, facing the sliding rail (401), of the lifting handle (2); the length of the sliding groove (204) is matched with the lifting stroke.

5. A chair with easy lifting waist support as claimed in claim 4, wherein the lifting handle (2) is fixed to the waist support (7) on the side facing the back cover (8); the side facing the back plate (3) is connected with the back piece (4) in a sliding way.

6. The chair with the function of conveniently lifting the lumbar support as claimed in claim 5, wherein the lifting handle (2) is bent inward at both sides to form a sliding groove (204), and the upper end thereof is recessed toward the back plate (3) to form a holding groove (201) for holding.

7. The chair with the function of conveniently lifting the lumbar support as claimed in claim 1, wherein the sliding groove (204) and the sliding rail (401) are of an arc-shaped or linear structure; be equipped with slip latch (2041) in sliding tray (204), be equipped with the gliding removal latch (4011) of cooperation slip latch (2041) on slide rail (401).

8. The chair with the function of conveniently lifting the lumbar support as claimed in any one of claims 1 to 7, wherein a limiting groove (205) for limiting the moving stroke of the lifting handle (2) is arranged at one position between the lifting handle (2) and the back piece (4), and a positioning column (301) is arranged at the other position, wherein the positioning column (301) extends into the limiting groove (205); the length of the limiting groove (205) is matched with the lifting stroke of the lifting handle (2).

9. A chair with easy lifting lumbar support as claimed in claim 8, characterized in that the lumbar support member (7) is a sheet-like structure with a certain curvature, and the sheet-like structure is symmetrically provided with at least two dividing grooves (701) which enable the lumbar support member (7) to have a certain deformation.

10. A chair with easy liftable lumbar support as claimed in claim 9, wherein said lumbar support (7) is provided with at least one outwardly protruding snap strip (703) at the location where it is assembled with the lifting handle (2); the lifting handle (2) is provided with a clamping groove (203) at the position corresponding to the clamping strip (703).