US20220022654A1

US20220022654A1 - A collapsible chair

Info

Publication number: US20220022654A1
Application number: US17/311,028
Authority: US
Inventors: Mark Andrew Fraser
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-04
Filing date: 2019-12-04
Publication date: 2022-01-27
Also published as: US20240285078A1; WO2020113265A1

Abstract

The present invention relates to a collapsible chair. The chair includes a backrest for engaging with a sitter's back. A seat extends from the backrest and is where the sitter can sit. A retractable leg support may extend from the seat and can be extended to support the sitter's legs with feet off the ground. Advantageously, the sitter's feet may be safely off the ground away from ants and sand.

Description

TECHNICAL FIELD

The present invention relates to a collapsible chair. The present invention has particular, although not exclusive use for beach and camping activities.

BACKGROUND

The reference to any prior art in this specification is not, and should not be taken as an acknowledgement or any form of suggestion that the prior art forms part of the common general knowledge.
Collapsible chairs for beach and camping activities are known. However, in practice, the sitter's feet resting on the ground are often undesirably subjected to ants and sand. The preferred embodiment impedes exposure of the feet to ants and sand.
Further, collapsible chairs are often heavy and unwieldy when collapsed. The preferred embodiment provides for a compact collapsed chair.

SUMMARY OF THE INVENTION

According to one aspect of the present invention, there is provided a collapsible chair including:
a backrest for engaging with a sitter's back; and
a seat extending from the backrest and upon which the sitter can sit.
The chair may further include a retractable head support for supporting a sitter's head. The head support may be pivotally mounted to the backrest. The chair may further include a recline adjuster to adjust the recline of the backrest. The recline adjuster may include a slider for sliding along the seat; and a tether for tethering between the slider and the backrest. The recline adjuster may include a lock for locking the slider in place. The lock may include a tongue in groove arrangement. The lock may be rotatably actuated.
The chair may include a retractable leg support extending from the seat and which can be extended to support the sitter's legs with feet off the ground. Advantageously, the sitter's feet are safely off the ground away from ants and sand. However, the retractable leg support may also be retracted so that the sitter's feet engage the ground for a different sitting position.
The retractable leg support may include a pivoting frame. The retractable leg support may include a sheet. The sheet may be fastened between a chair frame and the pivoting frame. The sheet may include fabric. The sheet may be limp. The sheet may terminate in collars collaring frame elements of the chair frame and the pivoting frame. The sheet may include a pocket for receiving the pivoting frame.
The chair may include a chair frame. The chair frame may include frame elements that nest together so that the collapsed chair frame is the compact thickness of a frame element. The thickness may be about 6 cm. The folded chair may be about 50 cm×60 cm. The chair may weigh less than 2 kg.
The chair frame may include a backrest frame and a rear spur frame pivotally mounted to the backrest frame. The chair frame may include a seat frame pivotally mounted to the backrest frame. The chair frame may include a front spur frame pivotally mounted to the seat frame.
The chair may include one or more sheet supports for mounting to the chair frame to support the sitter. The sheet supports may include one or more cutouts to facilitate frame folding.
The chair may include a storage area at the rear of the backrest. The storage area may include a shelf.
According to another aspect of the present invention, there is provided a collapsible chair including:
a seat upon which the sitter can sit; and
a retractable leg support extending from the seat and which can be extended to support the sitter's legs with feet off the ground.
Any of the features described herein can be combined in any combination with any one or more of the other features described herein within the scope of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

Preferred features, embodiments and variations of the invention may be discerned from the following Detailed Description which provides sufficient information for those skilled in the art to perform the invention. The Detailed Description is not to be regarded as limiting the scope of the preceding Summary of the Invention in any way. The Detailed Description will make reference to a number of drawings as follows:

FIG. 1 is a perspective view of a collapsible beach chair with extended leg support in accordance with an embodiment of the present invention;

FIG. 2 is a perspective view of the collapsible beach chair of FIG. 1 with retracted leg support;

FIG. 3 is a plan view of the collapsed beach chair of FIG. 1;

FIG. 4 shows the collapsible beach chair of FIG. 1 with a retractable headrest;

FIG. 5 shows side views of the collapsible beach chair of FIG. 4;

FIG. 6 is a plan view of the beach chair of FIG. 4 in an open and closed configuration;

FIG. 7 shows side and perspective views of a collapsible beach chair with a recline adjuster;

FIG. 8 shows side and perspective views of the collapsed beach chair of FIG. 7; and

FIG. 9 shows perspective and end views of the recline adjuster of the chair of FIG. 7.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

According to one aspect of the present invention, there is provided a collapsible beach chair 100 which can be configured in a lounge configuration as shown in FIG. 1 and a seated chair position as shown in FIG. 2.
Turning to FIG. 1, the chair 100 includes a backrest 102 for engaging with a sitter's back. A seat 104, upon which the sitter can sit, extends from the backrest 102. A retractable leg support 106 extends from the seat 104. The leg support 106 can be extended to support the sitter's legs with feet off the ground. Advantageously, the sitter's feet are safely off the ground away from ants and sand.
The retractable leg support 106 includes a U-shaped legrest endframe 108 which pivots from a main chair frame 110. The retractable leg support 106 includes a limp fabric sheet 112 fastened between the chair frame 110 and the pivoting endframe 108. Typically, ends of the sheet 112 terminate in collars collaring parallel frame elements of the chair frame 110 and the pivoting frame 108. The free end of the sheet 112 also includes a pocket for receiving and covering the free end the pivoting frame 108.
Turning to FIG. 2, the retractable leg support 106 can also be retracted so that the sitter's feet engage the ground in a different upright position.
The chair frame 110 includes an inclined rectangular backrest frame 200 and a rear U-shaped spur frame 202 pivotally mounted to the backrest frame 200. The chair frame 110 also includes a U-shaped seat frame 204 pivotally mounted to the backrest frame 200. The chair frame 110 also includes a front U-shaped spur frame 206 pivotally mounted to the seat frame 204.
The chair 100 also includes one or more fabric sheet supports 208 for mounting to cover the chair frame 110 to support the sitter. The sheet supports 208 include lateral cutouts 212, about the pivot, to facilitate frame folding. The sheet supports 208 are also stitched to the legrest sheet 112. The fabric sheet supports 208 connect to the chair frame 110 using column mounts.
The chair 100 also includes a storage area at the rear of the backrest 102 defined by a fabric shelf 210 extending between the rear spur frame 202 and the backrest frame 200.
Turning to FIG. 3, the chair frame 110 (including the legrest frame 108) is typically formed from bent tubular aluminum frame elements 300 that nest together so that the collapsed chair frame 110 is the compact thickness of a single frame element 300. The overall collapsed thickness is about 6 cm which is extremely slimline. The overall folded chair 100 is about 50 cm×60 cm. The chair 100 weighs less than 2 kg thereby making it extremely easy to handle and store. Accordingly, the compact chair 110 is also well suited to apartment living.
FIG. 4 shows the collapsible beach chair 100′ of FIG. 1, but with a retractable headrest 400 (i.e. support) for supporting a sitter's head. The headrest 400 includes a headrest frame 402 between which a sheet 404 extends.
As can best be seen in FIG. 5, the head support 400 is pivotally mounted to the backrest frame 200 of the backrest 102.
FIG. 6 shows the beach chair 100′ open, and closed or collapsed.
FIG. 7 shows a collapsible beach chair 100″ with a recline adjuster 700, and no leg support 106. The recline adjuster 700 is used to adjust the recline of the backrest 102 between 100° and 120° from the seat 104.
FIG. 8 shows the collapsed beach chair 100″.
FIG. 9 shows the function of the recline adjuster 700. The recline adjuster 700 includes a tubular slider 900 for sliding along the seat frame 204 of the seat 104. A flaccid tether 902 is tethered between the slider 900 and the backrest 102, and is taught in use as shown in FIG. 7.
The recline adjuster 700 includes a lock for locking the slider 900 in place. The lock includes a tongue (or pin) 904 in groove arrangement. The lock is rotatably actuated, whereby the slider 900 is rotated and moved along the seat frame 204 until the backrest 102 reclines to a suitable position. The slider 900 is then rotated back so that the tongue 904 is received in one of the many grooves with which it is aligned, thus locking the slider 900 and backrest 102 in place.

Claims

The claims defining the invention are as follows:

1. A collapsible chair including:

a backrest for engaging with a sitter's back; and

a seat extending from the backrest and upon which the sitter can sit.

2. A collapsible chair as claimed in claim 1, further including a retractable head support for supporting a sitter's head.

3. A collapsible chair as claimed in claim 2, wherein the head support is pivotally mounted to the backrest.

4. A collapsible chair as claimed in claim 1, further including a recline adjuster to adjust the recline of the backrest.

5. A collapsible chair as claimed in claim 4, wherein the recline adjuster includes a slider for sliding along the seat; and a tether for tethering between the slider and the backrest.

6. A collapsible chair as claimed in claim 4, wherein the recline adjuster includes a lock for locking the slider in place.

7. A collapsible chair as claimed in claim 6, wherein the lock includes a tongue in groove arrangement.

8. A collapsible chair as claimed in claim 6, wherein the lock is rotatably actuated.

9. A collapsible chair as claimed in claim 1, further including a retractable leg support extending from the seat and which can be extended to support the sitter's legs with feet off the ground.

10. A collapsible chair as claimed in claim 1, further including a chair frame, in turn, including frame elements that nest together so that the collapsed chair frame is the compact thickness of not more than three frame elements.

11. A collapsible chair as claimed in claim 10, wherein the thickness is less than 10 cm, and preferably about 6 cm.

12. A collapsible chair as claimed in claim 1, wherein the folded chair is about 50 cm×60 cm.

13. A collapsible chair as claimed in claim 1, further including a chair frame, the chair frame including a backrest frame, a rear spur frame pivotally mounted to the backrest frame, and a seat frame pivotally mounted to the backrest frame.

14. A collapsible chair as claimed in claim 13, wherein the chair frame includes a front spur frame pivotally mounted to the seat frame.

15. A collapsible chair as claimed in claim 12, further including one or more sheet supports for mounting to the chair frame to support the sitter.

16. A collapsible chair as claimed in claim 15, wherein the sheet supports include one or more cutouts to facilitate frame folding.

17. A collapsible chair as claimed in claim 1, further including a storage area at the rear of the backrest.

18. A collapsible chair as claimed in claim 17, wherein the storage area includes a shelf.

19. A collapsible chair as claimed in claim 1, weighing less than 2 kg.

20. A collapsible chair including:

a seat upon which the sitter can sit; and

a retractable leg support extending from the seat and which can be extended to support the sitter's legs with feet off the ground.