CN219270524U

CN219270524U - Folding chair with support cushion

Info

Publication number: CN219270524U
Application number: CN202320601311.8U
Authority: CN
Inventors: 陈德隆; 陈品颐; 陈品翰
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-06-30
Anticipated expiration: 2033-03-24

Abstract

A folding chair with a supporting pad comprises a chair frame mechanism and a back cushion mechanism. The chair frame mechanism can be driven to change between an unfolding state and a folding state and comprises a chair unit, a chair back unit arranged on the upper side of the chair unit and a supporting unit arranged on the chair back unit. The support unit has a spine extending up and down and located at a rear side of the seatback unit. The back cushion mechanism is arranged on the supporting unit and comprises a movable seat sleeved on the spine rod in an up-down adjustable manner and a supporting cushion arranged on the movable seat. The support pad can be propped against the chair back unit forwards when the chair frame mechanism is in the unfolding state. Through the arrangement of the back cushion mechanism, a user can freely adjust the height of the supporting cushion, so that the head, the neck or the waist of the user is supported, and the riding comfort is greatly improved.

Description

Folding chair with support pad

Technical Field

The utility model relates to a foldable or detachable chair, in particular to a folding chair.

Background

Referring to fig. 1 to 3, a conventional folding chair, which can be driven to change between an unfolded state and a folded state, includes a seat unit 91, a back unit 92, a supporting unit 93, and an armrest unit 99. The seat unit 91 includes two seat posts 911, two front foot posts 912 pivotally connected to the seat posts 911, two rear foot posts 913 pivotally connected to the seat posts 911, and a seat cover 914 disposed between the seat posts 911. The chair back unit 92 includes two uprights 921 pivotally connected to the upper sides of the sitting bars 911, respectively, and a back cover 922 sleeved between the uprights 921.

The supporting unit 93 is disposed at the rear side of the seatback unit 92, and includes a spine 94, a first link 95 and a second link 96 respectively disposed at the upper and lower ends of the spine 94, and two rod bushings 97. The first link 95 has a first pivoting seat 951 provided at the top end of the spine 94, and two first ribs 952 having one end pivoted to the left and right ends of the first pivoting seat 951, respectively. The first ribs 952 are respectively pivoted to the upper half sections of the upright 921 at the other ends thereof. The second link 96 has a second pivot base 961 provided at a lower end of the spine 94, and two second ribs 962 having one end pivoted to left and right ends of the second pivot base 961, respectively. The second ribs 962 are each non-rotatably fastened at their other ends to the rod cover 97. The rod sleeve 97 can be respectively used for the left and right leaning and limiting of the lower half section of the vertical rod 921 in a separable way. The armrest unit 99 has two armrest bodies 991. Each of the armrest bodies 991 is pivotally connected between the upright 921, the front leg 912, and the rear leg 913 on the same side.

When the folding chair is in the unfolded state, the seat cover 914 is spread by the seat rod 911, and the back cover 922 is spread by the upright rod 921, so as to jointly define a sitting space 90 for a user to sit. When the folding chair is to be changed from the unfolded state to the folded state, the first rib 952 is driven to pivot downward and fold relative to the spine 94 via the first pivot seat 951, and the second rib 962 is driven to pivot downward and fold relative to the spine 94 via the second pivot seat 961. At the same time, the second rib 962 will drive the sleeve 97 to pivot away from the pole 921, and the pole 921 is folded toward the spine 94. Then, the seat bar 911 is driven to swing upwards to lean against the spine bar 94, and the front leg 912, the rear leg 913, and the armrest body 991 are driven to pivot against the spine bar 94, so that the folding chair is changed from the unfolded state to the folded state.

However, since the supporting units 93 are spaced from the back cover 922 in the front-rear direction, when the user sits on the folding chair, the head and the back of the user are supported by the surface of the back cover 922, and the neck or waist of the user is easily suspended, so that the comfort of sitting cannot be improved.

Disclosure of Invention

It is an object of the present utility model to provide a folding chair which at least overcomes at least one of the disadvantages of the background art.

The folding chair with the support cushion comprises a chair frame mechanism and a back cushion mechanism.

The chair frame mechanism can be driven to change between an unfolding state and a folding state and comprises a chair unit, a chair back unit arranged on the upper side of the chair unit and a supporting unit arranged on the chair back unit. The support unit has a spine extending up and down and located at a rear side of the seatback unit.

The back cushion mechanism is arranged on the supporting unit and comprises a movable seat sleeved on the spine rod in an up-down adjustable manner and a supporting cushion arranged on the movable seat. The support pad can be pushed forward against the chair back unit when the chair frame mechanism is in the unfolding state.

According to the folding chair with the support pad, the support pad of the back cushion mechanism is pivoted on the movable seat along the front-back direction.

The folding chair with the support pad provided by the utility model has the advantages that the front side of the movable seat is concavely provided with two rotation stopping grooves which are distributed at intervals left and right, the back cushion mechanism also comprises two convex buckles which are arranged on the rear side of the support pad, and the rotation stopping grooves are respectively used for the convex buckles to lean against and position.

The folding chair with the support pad is characterized in that the left end and the right end of the movable seat are respectively provided with a large aperture part, a small aperture part and a positioning part which are mutually defined and correspond to the rotation stopping groove, the convex buckles can be driven by the support pad to rotate and respectively enter the large aperture part, and after the inner wall surface of the small aperture part is elastically stretched, the convex buckles are respectively abutted to the positioning part through the small aperture part for positioning.

The folding chair with the support cushion is provided with the pivot assembly pivoted on the movable seat, the back cushion part which is positioned in front of the pivot assembly at intervals, and two elastic elements which are arranged between the pivot assembly and the back cushion part.

According to the folding chair with the support pad, the elastic element elastically pushes the back cushion part forwards relative to the pivot assembly.

The folding chair with the support pad can be pushed by the cushion part to elastically compress backwards relative to the pivot assembly.

The folding chair with the support pad is long and narrow and can be driven to change between a first state and a second state, the support pad extends along the left and right direction when being positioned in the first state, and the support pad extends along the up and down direction when being positioned in the second state.

According to the folding chair with the support pad, the movable seat is in close-fit contact with the spine.

The utility model has the beneficial effects that: through the arrangement of the back cushion mechanism, a user can freely adjust the height of the supporting cushion, so that the head, the neck or the waist of the user is supported, and the riding comfort is greatly improved.

Drawings

Other features and advantages of the utility model will be apparent from the following description of the embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of a prior art folding chair in an unfolded state;

FIG. 2 is a rear view of the prior art folding chair in the unfolded state;

FIG. 3 is a rear view of the prior art folding chair in a collapsed position;

FIG. 4 is a perspective view of a first embodiment of the folding chair with support pad of the present utility model in an unfolded state;

FIG. 5 is a rear view of the first embodiment in the deployed state;

FIG. 6 is a side view of the first embodiment in the deployed state;

FIG. 7 is a side view similar to FIG. 6, illustrating the deployment angle of a seatback unit relative to a seating unit being adjustable;

FIG. 8 is an exploded perspective view of a movable seat and a support pad of a cushion mechanism of the first embodiment;

FIG. 9 is a front view of the movable seat and the support pad in a first state;

FIG. 10 is a front view similar to FIG. 9, illustrating the support pad in a second state;

FIG. 11 is a rear view of the first embodiment in a collapsed state; and

FIG. 12 is a perspective view of the cushion mechanism of a second embodiment of the folding chair of the present utility model.

Detailed Description

Before the present utility model is described in detail, it should be noted that in the following description, like elements are denoted by the same reference numerals.

Referring to fig. 4-6, a first embodiment of the folding chair with support pad of the present utility model comprises a frame mechanism 1 and a back cushion mechanism 2. The chair frame mechanism 1 is driven to change between an unfolded state and a folded state, and comprises a chair unit 3, a chair back unit 4, a supporting unit 5, and an armrest unit 6.

The seat unit 3 has two seat bars 31 extending in front and back, two front foot bars 32 pivotally connected to the seat bars 31, two rear foot bars 33 pivotally connected to the seat bars 31, two cross bars 34 pivotally connected to the front foot bars 32, a seat cover 35 sleeved on the seat bars 31, and two positioning pins 36. Each of the positioning pins 36 is disposed through the front leg 32 and the rear leg 33 on the same side.

The chair back unit 4 is mounted on the upper side of the seat unit 3, and is provided with two upright posts 41 respectively pivoted on the rear side of the sitting rod 31, and a back sleeve 42 sleeved on the upright posts 41.

The support unit 5 is disposed at the rear side of the seatback unit 4, and includes a spine 51 extending up and down, a first link 52 and a second link 53 disposed at the spine 51, and two rod bushings 54.

The first link 52 has a first pivot seat 521 provided at the top end of the spine 51, and two first ribs 522 having one end pivoted to the left and right ends of the first pivot seat 521, respectively. The other ends of the first ribs 522 are respectively pivoted to the upper half sections of the upright 41. The second link 53 has a second pivot base 531 provided at a lower end of the spine 51, and two second ribs 532 having one end pivoted to left and right ends of the second pivot base 531, respectively. The second ribs 532 are each non-rotatably secured at their other ends to the sleeve 54. The rod sleeve 54 can be respectively used for the left and right opposite leaning limit of the lower half section of the vertical rod 41 in a separable way.

The armrest unit 6 has two armrest bodies 61 disposed at a left-right interval and two fastening plates 62 disposed at lower sides of the armrest bodies 61, respectively. The armrest bodies 61 are respectively pivoted to the uprights 41. Each of the fastening plates 62 is provided with a chute 602 and four fastening slots 601 communicated with the upper side of the chute 602. Each of the fastening plates 62 is disposed between the front leg 32 and the rear leg 33 on the same side and is penetrated by the corresponding positioning pin 36, and each of the positioning pins 36 is detachably engaged in one of the fastening grooves 601 of the corresponding fastening plate 62.

Referring to fig. 6 and 7, the armrest body 61 may be driven upward to move the latch plate 62 upward relative to the latch 36, so that the latch 36 is disengaged from the slot 601 and moves downward relative to the chute 602. At this time, the armrest body 61 may be driven back and forth to move back and forth, so that the sliding groove 602 of the fastening plate 62 and the positioning pin 36 slide relatively until the positioning pin 36 slides below the predetermined clamping groove 601. Then, the armrest body 61 is driven downward to drive the fastening plate 62 to move downward, so that the positioning pin 36 is relatively inserted into the predetermined fastening slot 601. Since the armrest unit 6 is pivotally disposed on the upright 41 of the seatback unit 4, the deployment angle of the seatback unit 4 relative to the seatback unit 3 can be adjusted by changing the relative engagement position of the engagement plate 62 of the armrest unit 6 and the positioning pin 36 of the seatback unit 3.

Referring to fig. 8 to 10, the cushion mechanism 2 is mounted on the supporting unit 5, and includes a movable seat 21 sleeved on the spine 51 in a vertically adjustable manner, a supporting pad 22 mounted on the movable seat 21, and two protruding buckles 23 mounted on the rear side of the supporting pad 22. The front side of the movable seat 21 is concavely provided with two rotation stopping grooves 20 which are distributed at intervals left and right. The left and right ends of the movable seat 21 are respectively provided with a large aperture portion 211, a small aperture portion 212 and a positioning portion 213 which are connected to each other and define the corresponding rotation stopping groove 20. In this embodiment, the movable seat 21 is in close contact with the spine 51. The support pad 22 is pivoted to the movable seat 21 along the front-rear direction.

In this embodiment, the support pad 22 is elongated and can be pushed forward against the back unit 4 when the seat frame mechanism 1 is in the unfolded state. The diameter of the protruding buckle 23 is approximately equal to the aperture of the small aperture portion 212 of the movable seat 21.

The support pad 22 is rotatable to change between a first state and a second state. Referring to fig. 9, the support pad 22 extends in the longitudinal direction in the first state. Referring to fig. 10, the support pad 22 extends up and down along the length thereof when in the second state. When the support pad 22 is driven to change from the second state to the first state, the support pad 22 is driven clockwise, the convex buckles 23 are driven by the rotation of the support pad 22 and enter the large aperture portions 211 respectively, and after the inner wall surfaces of the small aperture portions 212 are elastically stretched, the convex buckles are abutted against the positioning portions 213 through the small aperture portions 212 respectively for positioning.

Referring to fig. 4 and 6, when the folding chair is in the unfolded state, the seat cover 35 is supported and unfolded by the seat rod 31, and the back cover 42 is supported and unfolded by the upright rod 41, so as to jointly define a sitting space 10 for a user to sit. The user can adjust the movable seat 21 up and down relative to the spine 51 according to the requirement, so that the support pad 22 can prop against the waist, neck or head of the user while being supported on the rear side of the back cover 42, thereby increasing the riding comfort.

The support pad 22 can also be adjusted up and down with the deployment angle of the seatback unit 4 relative to the seat unit 3. As shown in fig. 7, the armrest unit 6 is adjusted to have a larger opening angle of the seat back unit 4 relative to the seat unit 3, so that the support pad 22 can be moved to a position corresponding to the head of the user, and the head of the user can be well supported when lying on the folding chair, thereby greatly increasing the comfort of use.

Referring to fig. 11, when the folding chair is to be changed from the unfolded state to the folded state, the first pivot seat 521 is pressed down, the first rib 522 is driven to pivot upward with respect to the spine 51 with the first pivot seat 521 as a pivot point, and the second rib 532 is driven to pivot upward with respect to the spine 51 with the second pivot seat 531 as a pivot point. At the same time, the second rib 532 drives the sleeve 54 to pivot away from the upright 41, and the upright 41 is folded toward the spine 51. Then, the seat bar 31 is driven to swing upwards to lean against the spine bar 51, and the front foot bar 32, the cross bar 34, the rear foot bar 33 and the armrest body 61 are driven to pivot to lean against the spine bar 51, so that the folding chair is changed from the unfolded state to the folded state.

At this time, the support pad 22 can be driven to the second state to extend vertically along the long direction, so that the distance between the upright posts 41 can be reduced, and the folding volume of the folding chair can be further reduced.

Referring to fig. 12, the second embodiment of the folding chair with support pad of the present utility model is different from the first embodiment in the structural design of the cushion mechanism 2, and only the differences will be described below.

The support pad 22 of the cushion mechanism 2 has a pivot assembly 221 mounted on the movable seat 21, a cushion portion 222 spaced apart in front of the pivot assembly 221, and two elastic members 223 mounted between the pivot assembly 221 and the cushion portion 222. The pivot assembly 221 has a pivot block 224 pivoted to the movable seat 21, a rod body 225 passing through the pivot block 224 from left to right, and two sleeves 226 sleeved at two ends of the rod body 225. The elastic members 223 are respectively installed between the sleeve 226 and the cushion 222.

In the second embodiment, in the non-use state, the elastic element 223 elastically pushes the cushion portion 222 forward relative to the pivot assembly 221, so that the cushion portion 222 pushes the back cover 42 forward. When a user sits in the sitting space 10, the user can lean back against the support pad 22 through the back cover 42, so that a good buffering and supporting effect can be obtained.

In other embodiments of the second embodiment, the cushion portion 222 may be configured to be spaced apart from the rear side of the back cover 42 in the non-use state. When a user sits in the sitting space 10, the user can lean back against the support pad 22 through the back cover 42, and the elastic element 223 is elastically compressed back by the support pad 22, so that good buffering and supporting effects can be obtained.

It should be noted that the number of the clamping grooves 601 of each clamping plate 62 is not limited to four, and may be one, two, three or more than five according to practical requirements.

In summary, the folding chair of the present utility model can freely adjust the height of the support pad 22 by the arrangement of the cushion mechanism 2, so that the head, neck or waist of the user can be supported, and the riding comfort is greatly improved. The object of the present utility model can be achieved.

The foregoing is merely illustrative of the present utility model and is not intended to limit the scope of the utility model, which is defined by the appended claims and their equivalents.

Claims

1. A folding chair having a support pad, characterized in that: comprising:

the chair frame mechanism can be driven to change between an unfolding state and a folding state and comprises a chair unit, a chair back unit arranged on the upper side of the chair unit and a supporting unit arranged on the chair back unit, wherein the supporting unit is provided with a ridge rod which extends up and down and is positioned on the rear side of the chair back unit; and

The back cushion mechanism is arranged on the supporting unit and comprises a movable seat which can be sleeved on the spine rod in an up-down adjustable manner and a supporting cushion arranged on the movable seat, and the supporting cushion can be propped against the chair back unit forwards when the chair frame mechanism is in the unfolding state.

2. The folding chair with support pad of claim 1, wherein: the support pad of the back cushion mechanism is pivoted on the movable seat along the front-back direction.

3. The folding chair with support cushion of claim 2 wherein: the front side of the movable seat is concavely provided with two rotation stopping grooves which are distributed left and right at intervals, the back cushion mechanism further comprises two convex buckles arranged on the rear side of the supporting cushion, and the rotation stopping grooves are respectively used for the convex buckles to lean against and position.

4. The folding chair with support pad of claim 3 wherein: the left end and the right end of the movable seat are respectively provided with a large aperture part, a small aperture part and a positioning part which are mutually defined to correspond to the rotation stopping groove, the convex buckle can be driven by the supporting pad to rotate and respectively enter the large aperture part, and after the inner wall surface of the small aperture part is elastically stretched, the convex buckle is respectively abutted to the positioning part through the small aperture part to be positioned.

5. The folding chair with support cushion of claim 2 wherein: the support pad is provided with a pivot assembly pivoted on the movable seat, a back cushion part positioned in front of the pivot assembly at intervals, and two elastic elements arranged between the pivot assembly and the back cushion part.

6. The folding chair with support cushion of claim 5 wherein: the elastic element elastically pushes the cushion part forwards relative to the pivot assembly.

7. The folding chair with support cushion of claim 5 wherein: the elastic element can be pushed by the cushion part to elastically compress backwards relative to the pivot assembly.

8. The folding chair with support cushion of claim 2 wherein: the support pad is long and narrow and can be driven to change between a first state and a second state, the support pad extends along the left and right direction when being positioned in the first state, and the support pad extends along the up and down direction when being positioned in the second state.

9. The folding chair with support pad of claim 1, wherein: the movable seat is in close-fit contact with the ridge rod.