CN110897397A

CN110897397A - Multifunctional chair

Info

Publication number: CN110897397A
Application number: CN201811082215.7A
Authority: CN
Inventors: 叶龙华
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-17
Filing date: 2018-09-17
Publication date: 2020-03-24

Abstract

The invention discloses a multifunctional chair, which comprises a support part, a seat part and a kneeler part, wherein the seat part can be connected to the support part in a swinging manner, the kneeler part is connected to the seat part in a rotating manner and is connected to the support part through a connecting mechanism, the kneeler part can move between a first position aligning with the seat part and a second position forming a kneeler of a balance chair, and the movement of the seat part and the movement of the kneeler part form linkage; the chair seat is characterized by further comprising a matching mechanism, the matching mechanism comprises a matching frame and a telescopic mechanism, the matching frame is rotatably connected to the chair seat part, one end of the telescopic mechanism is rotatably connected to the supporting part, and the other end of the telescopic mechanism is rotatably connected to the matching frame. It has the following advantages: telescopic machanism one end is connected on the cooperation frame, and the other end is connected at the support segment, and the seat support part is reconnected to the cooperation frame, increases the unobstructed nature of function chair change, reduces the energy consumption, improves the convenience of change.

Description

Multifunctional chair

Technical Field

The invention relates to a chair, in particular to a multifunctional chair which can be used as a chair stool and a balance chair.

Background

Chinese patent database 2018.05.11 discloses a multifunctional balance chair with publication number CN 207341490A. Referring to FIG. 1, it includes a support portion 10 ', a seat portion 20 ' and a kneeler portion 30 ', the seat portion 20 ' being pivotally connected to the support portion 10 '; the kneeler portion 30 ' is pivotally connected to the seat portion 20 ' and to the support portion 10 ' by a linkage, the kneeler portion 30 ' being movable between a position in which it is aligned with the seat portion 20 ' and a position in which it forms a balance chair kneeler, the movement of the seat portion 20 ' being interlocked with the movement of the kneeler portion 30 '. The backrest 50 'is provided with a second sliding rod 51' capable of sliding downwards, the backrest 50 'comprises two backrest rods 52', and a telescopic structure is formed between the backrest rods 52 'and the second sliding rod 51'; the second slide rod 51 'is rotatably connected at its lower end to a rear support arm 123' fixed to the support portion 10 ', and the seat portion 20' is rotatably connected at its rear portion to the back bar 52 'of the back rest 50'. The back pole rotates to be connected behind the seat support part, and the second slide bar rotates to be connected the support part, and the unobstructed nature of function chair change between balanced chair state and bench state has the demand of further strengthening.

Disclosure of Invention

The invention provides a multifunctional balance chair, which overcomes the defects of the multifunctional balance chair in the background technology.

The technical scheme adopted by the invention for solving the technical problem is as follows:

a utility chair comprising a support portion, a seat portion pivotally connected to the support portion, and a kneeler portion pivotally connected to the seat portion and connected to the support portion by a linkage, the kneeler portion being movable between a first position in alignment with the seat portion and a second position constituting a balance chair kneeler, the movement of the seat portion being in operative communication with the movement of the kneeler portion; the chair seat is characterized by further comprising a matching mechanism, the matching mechanism comprises a matching frame and a telescopic mechanism, the matching frame is rotatably connected to the chair seat part, one end of the telescopic mechanism is rotatably connected to the supporting part, and the other end of the telescopic mechanism is rotatably connected to the matching frame.

In one embodiment: the matching frame comprises a matching piece and a backrest part fixedly connected to the tail end of the matching piece, the front end of the matching piece is rotatably connected with the rear end of the seat part, a lower convex arm is arranged on the bottom surface of the rear part of the matching piece, one end of the telescopic mechanism is rotatably connected to the supporting part, and the other end of the telescopic mechanism is rotatably connected to the tail end of the lower convex arm of the matching frame.

In one embodiment: the matching frame comprises a matching piece and a backrest part fixedly connected to the upper end of the matching piece, the upper part of the matching piece is rotatably connected with the rear end of the seat part, one end of the telescopic mechanism is rotatably connected to the supporting part, and the other end of the telescopic mechanism is rotatably connected to the lower end of the matching frame.

In one embodiment: the matching frame rod is also provided with a driving unit, and the driving unit is matched with the telescopic mechanism to drive the telescopic mechanism to extend and retract.

In one embodiment: the bottom surface of the chair seat part is fixedly provided with an arc-shaped guide arm, and the arc-shaped axis of the guide arm is superposed with the swinging axis of the chair seat part; the supporting part is provided with a guide groove, and the notch of the guide groove is positioned on the top surface of the supporting part; the guide arm is movably connected in the guide groove in a matching way.

In one embodiment: the first locking mechanism comprises a bolt, the supporting part is provided with an insertion hole penetrating through the inside and the outside of the guide groove, the guide arm is provided with two positioning grooves arranged at intervals, and the bolt penetrates through the insertion hole and is inserted into one of the two positioning grooves.

In one embodiment: the kneeling plate part comprises a kneeling plate, the seat part comprises a seat plate, the middle part of the front side of the seat plate is forward-convex to form a convex part, and the front side of the convex column part is connected with the front side of the kneeling plate so as to enable the kneeling plate and the seat plate to rotate relatively.

In one embodiment: the kneeling pad part is rotatably connected with the front part of the seat part; a cantilever arm is convexly arranged below the kneeling pad part and is positioned behind the rotary connection part of the kneeling pad part and the seat part; one end of the connecting mechanism is rotatably connected to the cantilever, and the other end of the connecting mechanism is rotatably connected to the supporting part.

In one embodiment: a second locking mechanism is provided on the bottom surface of the seat portion and engages the kneeler portion to retain the kneeler portion in the first position.

In one embodiment: the second locking mechanism comprises a sliding tongue, an elastic body and an operating piece; the sliding tongue slides relative to the seat part between a protruding position protruding out of the seat part and a non-protruding position not protruding out of the seat part, the elastic body abuts against the seat part and the sliding tongue so that the sliding tongue can be subjected to elastic force directed from the non-protruding position to the protruding position, and the operating element is in transmission connection with the sliding tongue so as to drive the sliding tongue to slide to the non-protruding position through the operating element.

In one embodiment: the sliding tongue is provided with a protruding end part, and the bottom surface of the protruding end part is provided with an inclined guide surface.

In one embodiment: the bottom surface of the chair seat part is convexly provided with a sliding track seat and a propping seat, the sliding track seat is provided with a through sliding track, the sliding tongue is in adaptive connection with the sliding track, and the elastic body is propped and connected between the sliding tongue and the propping seat.

In one embodiment: the abutting seat is provided with a through channel, the operating piece comprises a pull rope, one tail end of the pull rope is connected with the tail end of the sliding tongue, and the other tail end of the pull rope penetrates through the channel.

Compared with the background technology, the technical scheme has the following advantages:

the multifunctional chair further comprises a matching mechanism, the matching mechanism comprises a matching frame and a telescopic mechanism, the matching frame is rotatably connected to the chair seat part, one end of the telescopic mechanism is rotatably connected to the supporting part, the other end of the telescopic mechanism is rotatably connected to the matching frame, firstly, the state of the multifunctional chair can be changed by means of the telescopic mechanism, the multifunctional chair can be changed conveniently and quickly, secondly, one end of the telescopic mechanism is connected to the matching frame, the other end of the telescopic mechanism is connected to the supporting part, the matching frame is connected with the chair seat part, the smoothness of the change of the functional chair is improved, the energy; thirdly, the backrest can be driven to move through the matching mechanism, so that the movement of the backrest is matched with the state of the functional chair, and the use comfort of the sitting person is improved.

The cooperation frame includes fitting piece and back part, and fitting piece front end and seat support part rear end rotate to be connected together, and fitting piece rear portion bottom surface is equipped with down the convex arm, and telescopic machanism one end rotates to be connected at the supporting part, and other end rotates to be connected at cooperation frame lower convex arm end, increases the interval between seat support part front end and the back part, the area of increase seat support.

The cooperation frame includes fitting piece and back part, and fitting piece upper portion and seat support part rear end rotate to be connected together, and telescopic machanism one end rotates to be connected at the supporting part, and the other end rotates to be connected at cooperation frame lower extreme, increases the unobstructed nature of function chair change.

The bottom surface of the seat part is fixedly provided with an arc-shaped guide arm, the supporting part is provided with a guide groove, the notch of the guide groove is positioned on the top surface of the supporting part, and the guide arm is movably connected in the guide groove in an adaptive manner, so that on one hand, the swinging guide is realized through the cooperation, the swinging accuracy is improved, the connection strength is enhanced, the swinging connection relation is prevented from being damaged, and the service life is prolonged; on the other hand, the provision of a locking mechanism between the seat part and the support part is facilitated.

The matching mechanism is also provided with a driving unit, and the driving unit is matched with the telescopic mechanism to drive the telescopic mechanism to stretch, so that the structure is compact and the operation is convenient.

The front side of the bulge part is connected with the front side of the kneeling plate so that the kneeling plate and the seat plate can rotate relatively, the structure is simple, and the assembly is convenient.

The second locking mechanism is arranged on the bottom surface of the seat part and can be locked and matched with the kneeler part so as to keep the kneeler part at the first position, the locking is firm and reliable, and the locking or unlocking is convenient.

Drawings

The invention is further illustrated by the following figures and examples.

Fig. 1 is a schematic structural view of a multifunctional balance chair in the background art.

Fig. 2 is a schematic structural view of a multipurpose chair in a balanced chair state according to an embodiment.

Fig. 3 is a schematic structural view of a multipurpose chair in a seating state according to an embodiment.

Fig. 4 is an exploded perspective view of a portion of a multi-function chair according to an embodiment.

FIG. 5 is a perspective view of the kneeler and seat portions of the multi-function chair according to one embodiment.

FIG. 6 is a perspective view of the kneeler and frame of the multi-function chair.

Fig. 7 is a schematic structural view of a second latch mechanism of the multipurpose chair according to the embodiment.

Fig. 8 is a schematic structural view of a second locking mechanism of the multipurpose chair according to the second embodiment.

Fig. 9 is a perspective exploded view of a third embodiment of a multi-purpose chair with partial components.

Detailed Description

Referring to FIGS. 2-7, a utility chair includes a support portion 10, a seat portion 20, a kneeler portion 30 and an engagement mechanism 40. The seat portion 20 is pivotally connected to the support portion 10 and the relative movement of the seat portion 20 controls the angle of the seat portion 20 relative to the horizontal; the kneeler 30 is pivotally connected to the seat portion 20 and to the support portion 10 by a linkage 31. the kneeler 30 is movable between a first position in which it is aligned with the seat portion 20 and a second position in which it forms the kneeler of the balance chair, the movement of the seat portion 20 being coupled to the movement of the kneeler 30 such that the angle of inclination of the kneeler 30 and the seat portion 20 is changed in opposite directions in synchronism and the locking is changed if the seat portion 20 is tilted forward by 30 'to 40'.

The engaging mechanism 40 includes an engaging frame 41 and a telescopic mechanism 42, the engaging frame 41 is rotatably connected to the rear end of the seat portion 20, and one end of the telescopic mechanism 42 is rotatably connected to the supporting portion 10, and the other end is rotatably connected to the engaging frame 41. The matching mechanism 40 is further provided with a driving unit, the driving unit is matched with a telescopic mechanism to drive the telescopic mechanism to extend and retract, for example, the driving unit and the telescopic mechanism are matched to form a gas spring. The structure of the fitting frame 41 is, for example: it comprises a fitting member 411 and a back rest portion 412 having a lower end fixedly connected to a rear end of the fitting member 411; the front end of the fitting element 411 is pivotally connected to the rear end of the seat portion 20, a lower arm 413 is fixed to the rear end of the fitting element 411, and the telescopic mechanism 42 has one end pivotally connected to the support portion 10 and the other end pivotally connected to the lower arm 413. With the matching mechanism 40, the following technical effects can be produced: one end of the telescopic mechanism is connected to the matching frame, the other end of the telescopic mechanism is connected to the supporting part, and the matching frame is connected with the chair seat part, so that the smoothness of the change of the functional chair is improved, the energy consumption is reduced, and the convenience of the change is improved; thirdly, the backrest can be driven to move through the matching mechanism, so that the movement of the backrest is matched with the state of the functional chair, and the use comfort of the sitting person is improved.

The bottom surface of the kneeling pad part 30 is fixedly connected with a fixed seat 32, and two ends of the fixed seat 32 are respectively fixedly provided with a cantilever 33; the connecting mechanism 31 includes a front rod, side rods with two front ends fixedly connected to the front rod, and a rear rod fixedly connected to the rear ends of the two side rods, wherein two ends of the rear rod are respectively and fixedly provided with a connecting rod 34, the two connecting rods 34 are matched to form a splayed shape, the front rod is arranged between the bottom ends of the two cantilevers 33 and connected through a rotating shaft to form a rotating connection, and the tail ends of the two connecting rods 34 are arranged outside the supporting part 10 and connected through a rotating shaft to form a rotating connection.

The bottom surface of the seat part 20 is fixedly provided with an arc-shaped guide arm 21, and the arc-shaped axis of the guide arm 21 is superposed with the swinging axis of the seat part 20; the supporting part 10 is provided with a guide groove 11, and the notch of the guide groove 11 is positioned on the top surface of the supporting part 10; the guide arm 11 is movably connected in the guide groove 11 in a matching mode, and through the matching of the guide arm 21 and the guide groove 11, on one hand, the swing guide is realized through the matching, so that the swing accuracy is improved, the connection strength is enhanced, the swing connection relation is prevented from being damaged, and the service life is prolonged; on the other hand, facilitates the provision of a locking mechanism between the seat portion 20 and the support portion 10.

Further, a first locking mechanism is provided between the seat portion 20 and the support portion 10, the first locking mechanism includes a latch 51, the support portion 10 is provided with an insertion hole penetrating through the inside and outside of the guide slot 11, the guide arm 21 is provided with two positioning slots 22 arranged at intervals, the latch 51 passes through the insertion hole and is inserted into one of the two positioning slots 22, wherein the insertion of one positioning slot 22 indicates that the functional chair is in the bench state and the latch is kept in the state, and the insertion of the other positioning slot 22 indicates that the functional chair is in the balance chair state and the latch is kept in the state. By adopting the structure, on one hand, the locking connection is convenient, the operation is convenient, and on the other hand, the structure is simple and compact, and the layout is reasonable.

The kneeler 30 has two first side edges 35 and a concave portion 36 between the two first side edges 35 and concave relative to the two first side edges 35; the front side of the seat part 20 has a protruding part 23 located at the middle part and two second side edge parts 24 respectively located at two sides of the protruding part 23; the middle front side of the kneeler part 30 and the front side of the bulge 23 are connected together by a hinge 25; the second locking mechanism described above is provided between the first side edge portion 35 and the second side edge portion 24.

The second locking mechanism includes a slide tongue 61, an elastic body 62, and an operating piece 63. The seat portion 20 has a sliding seat and a supporting seat 27 protruding from the bottom surface thereof, the sliding seat and the supporting seat are fixedly connected to the bottom surface of the fixing plate 26, the fixing plate is fixedly connected to the bottom surface of the seat portion, the sliding seat has a sliding channel penetrating in the front and back direction, and the supporting seat 27 has a channel penetrating in the front and back direction. The sliding tongue 61 is adapted to be connected to the slide so that the sliding tongue 61 slides back and forth relative to the seat portion between an extended position extending beyond the seat portion and an unextended position not extending beyond the seat portion; the elastic body 62 is a spring, and the spring abuts against the abutting seat 27 and the rear end of the sliding tongue 61 to enable the sliding tongue to be subjected to elastic force from the non-extending position to the extending position; the operation member 63, for example, includes a pull rope, one end of the pull rope is connected to the end of the sliding tongue, and the other end of the pull rope passes through the channel, and the sliding tongue is pulled by the pull rope to move backwards so as to drive the sliding tongue to slide to the non-extended position. The tongue 61 has a front end portion provided with an inclined guide surface 611 on the bottom surface. In the use process: operating the functional chair to change the functional chair from the balance chair state to the chair state, wherein the kneeling part moves from the second position to the first position, the kneeling part moves upwards, the seat part moves downwards, the sliding tongue is contacted with the kneeling part, the sliding tongue 61 slides backwards to the non-extended position through the inclined guide surface, the kneeling part and the seat part are aligned, after alignment, under the elastic force of the elastic body, the sliding tongue 61 extends and is located at the extended position, namely, the sliding tongue 61 is abutted against the back of the kneeling part 30, so that the functional chair is locked and kept in the chair state; the pull rope is pulled to slide the sliding tongue 61 to the non-extended state, at the moment, the second locking structure is released, and the functional chair can be operated to change the functional chair from the chair stool state to the balance chair state. The second locking mechanism of the specific embodiment is compact in structure, convenient to operate and firm and reliable in locking.

The first side edge 35 is provided with a protruding lug 351 at the rear side, and the sliding tongue 61 and the protruding lug 351 cooperate to lock the seat part and the kneeler part.

In this embodiment, referring to fig. 2, the seat portion 20 includes a supporting plate 281 and a first seat plate 282, and the first seat plate has a width larger than that of the supporting plate 281; the first seat plate 282 is fixed under the support plate 281, the rear side of the first seat plate 281 is flush with the rear side of the support plate 281, and the front portion of the support plate 281 extends out of the first seat plate 281, and the extended portion constitutes the protruding portion 23. The matching mechanism is connected with a supporting plate 281, and the guide arm 21 is fixedly connected with the bottom surface of the supporting plate 281. Of course, during use, the seat part is provided with a soft cushion, and the kneeler is also provided with a soft cushion.

The specific structure of the seat portion 20 also adopts the structure of fig. 5 and 6, for example, the seat portion 20 includes a convex-shaped panel, and the convex portion of the convex-shaped panel constitutes the convex portion 23; a connecting frame 283 is fixed on the protruding part 23, such as an H-shaped frame, and the front side of the frame and the front side of the kneeling pad part 30 are connected together by a hinge.

Referring to fig. 8, a second embodiment differs from the previous embodiment in that: the middle part of the rear side edge of the concave part 36 of the kneeling pad part 30 is protruded backwards to form a second lug 361; the slide seat and the abutting seat of the second locking mechanism are fixed on the bottom surface of the protruding portion 23 of the seat portion 10, and the fixing plate 26 is fixed on the bottom surface of the protruding portion 23.

Referring to fig. 9, a third embodiment is different from the above embodiments in that: the engaging mechanism 40 includes an engaging frame 41 and a telescopic mechanism 42, the engaging frame 41 is rotatably connected to the rear end of the seat portion 20, and one end of the telescopic mechanism 42 is rotatably connected to the supporting portion 10, and the other end is rotatably connected to the engaging frame 41. The structure of the fitting frame 41 is, for example: it comprises a fitting member 411 and a back part 412 having a lower end fixedly connected to the upper end of the fitting member 411; the upper middle portion of the fitting member 411 is pivotally connected to the rear end of the seat portion 20, and the telescopic mechanism 42 has one end pivotally connected to the support portion 10 and the other end pivotally connected to the lower end portion of the fitting member 411.

The specific structure of the seat portion 20 is, for example, the structure of fig. 9, and the seat portion 20 includes a convex-shaped panel, and the convex portion of the convex-shaped panel constitutes the convex portion 23; the front side of the bulge 23 and the front side of the kneeler 30 are connected together by a hinge. The convex-shaped panel comprises an outer frame, and reinforcing ribs are fixedly arranged in the outer frame. The bottom surface of the seat portion 20 is fixed to the guide arm 21 by a fixing plate 211.

The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents.

Claims

1. A utility chair comprising a support portion, a seat portion pivotally connected to the support portion, and a kneeler portion pivotally connected to the seat portion and connected to the support portion by a linkage, the kneeler portion being movable between a first position in alignment with the seat portion and a second position constituting a balance chair kneeler, the movement of the seat portion being in operative communication with the movement of the kneeler portion; the method is characterized in that: the chair seat is characterized by further comprising a matching mechanism, the matching mechanism comprises a matching frame and a telescopic mechanism, the matching frame is rotatably connected to the chair seat part, one end of the telescopic mechanism is rotatably connected to the supporting part, and the other end of the telescopic mechanism is rotatably connected to the matching frame.

2. The utility chair of claim 1, wherein: the matching frame comprises a matching piece and a backrest part fixedly connected to the tail end of the matching piece, the front end of the matching piece is rotatably connected with the rear end of the seat part, a lower convex arm is arranged on the bottom surface of the rear part of the matching piece, one end of the telescopic mechanism is rotatably connected to the supporting part, and the other end of the telescopic mechanism is rotatably connected to the tail end of the lower convex arm of the matching frame.

3. The utility chair of claim 1, wherein: the matching frame comprises a matching piece and a backrest part fixedly connected to the upper end of the matching piece, the upper part of the matching piece is rotatably connected with the rear end of the seat part, one end of the telescopic mechanism is rotatably connected to the supporting part, and the other end of the telescopic mechanism is rotatably connected to the lower end of the matching frame.

4. The multifunctional chair according to claim 1, 2 or 3, wherein: the matching frame rod is also provided with a driving unit, and the driving unit is matched with the telescopic mechanism to drive the telescopic mechanism to extend and retract.

5. The multifunctional chair according to claim 1, 2 or 3, wherein: the bottom surface of the chair seat part is fixedly provided with an arc-shaped guide arm, and the arc-shaped axis of the guide arm is superposed with the swinging axis of the chair seat part; the supporting part is provided with a guide groove, and the notch of the guide groove is positioned on the top surface of the supporting part; the guide arm is movably connected in the guide groove in a matching way.

6. The utility chair of claim 5, wherein: the first locking mechanism comprises a bolt, the supporting part is provided with an insertion hole penetrating through the inside and the outside of the guide groove, the guide arm is provided with two positioning grooves arranged at intervals, and the bolt penetrates through the insertion hole and is inserted into one of the two positioning grooves.

7. The multifunctional chair according to claim 1, 2 or 3, wherein: the kneeling plate part comprises a kneeling plate, the seat part comprises a seat plate, the middle part of the front side of the seat plate is forward-convex to form a convex part, and the front side of the convex column part is connected with the front side of the kneeling plate so as to enable the kneeling plate and the seat plate to rotate relatively.

8. The multifunctional chair according to claim 1, 2 or 3, wherein: the kneeling pad part is rotatably connected with the front part of the seat part; a cantilever arm is convexly arranged below the kneeling pad part and is positioned behind the rotary connection part of the kneeling pad part and the seat part; one end of the connecting mechanism is rotatably connected to the cantilever, and the other end of the connecting mechanism is rotatably connected to the supporting part.

9. The multifunctional chair according to claim 1, 2 or 3, wherein: a second locking mechanism is provided on the bottom surface of the seat portion and engages the kneeler portion to retain the kneeler portion in the first position.

10. The utility chair of claim 9, wherein: the second locking mechanism comprises a sliding tongue, an elastic body and an operating piece; the sliding tongue slides relative to the seat part between a protruding position protruding out of the seat part and a non-protruding position not protruding out of the seat part, the elastic body abuts against the seat part and the sliding tongue so that the sliding tongue can be subjected to elastic force directed from the non-protruding position to the protruding position, and the operating element is in transmission connection with the sliding tongue so as to drive the sliding tongue to slide to the non-protruding position through the operating element.

11. The utility chair of claim 10, wherein: the sliding tongue is provided with a protruding end part, and the bottom surface of the protruding end part is provided with an inclined guide surface.

12. The utility chair of claim 10, wherein: the bottom surface of the chair seat part is convexly provided with a sliding track seat and a propping seat, the sliding track seat is provided with a through sliding track, the sliding tongue is in adaptive connection with the sliding track, and the elastic body is propped and connected between the sliding tongue and the propping seat.

13. The utility chair of claim 12, wherein: the abutting seat is provided with a through channel, the operating piece comprises a pull rope, one tail end of the pull rope is connected with the tail end of the sliding tongue, and the other tail end of the pull rope penetrates through the channel.