U.S. patent application number 14/459449 was filed with the patent office on 2016-02-18 for headrests for universal folding chairs.
This patent application is currently assigned to Zenithen USA. LLC. d/b/a Z Company, Zenithen USA. LLC. d/b/a Z Company. The applicant listed for this patent is Zenithen USA LLC d/b/a Z Company, Zenithen USA LLC d/b/a Z Company. Invention is credited to Andrew David Frankel, Shi-Ping Zheng, Tian-Xia Zheng.
Application Number | 20160045030 14/459449 |
Document ID | / |
Family ID | 55301152 |
Filed Date | 2016-02-18 |
United States Patent
Application |
20160045030 |
Kind Code |
A1 |
Frankel; Andrew David ; et
al. |
February 18, 2016 |
HEADRESTS FOR UNIVERSAL FOLDING CHAIRS
Abstract
A headrest for universal folding chairs comprises a fixed seat
fixedly attachable to the top of the backrest of the folding chair
and a headrest, where the headrest is located in the fixed seat by
a support rod member. This utility model provides a clever and
rational design, and expands the use function of folding chairs.
Where, the headrest is fixedly attached to the top of the backrest
of the folding chair with the help of a fixed seat, so as to
provide a head support at the time of rest. Moreover, the
supporting angle of the headrest is properly adjustable relative to
the fixed seat, so as to achieve a more comfortable experience.
Inventors: |
Frankel; Andrew David;
(Yorba Linda, CA) ; Zheng; Shi-Ping; (Fuzhou,
CN) ; Zheng; Tian-Xia; (Fuzhou, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Zenithen USA LLC d/b/a Z Company |
Diamond Bar |
CA |
US |
|
|
Assignee: |
Zenithen USA. LLC. d/b/a Z
Company
|
Family ID: |
55301152 |
Appl. No.: |
14/459449 |
Filed: |
August 14, 2014 |
Current U.S.
Class: |
297/397 |
Current CPC
Class: |
A47C 7/383 20130101 |
International
Class: |
A47C 7/38 20060101
A47C007/38 |
Claims
1. A headrest for universal folding chairs, comprising a fixed seat
fixedly attachable to the top of the backrest of the folding chair
and a headrest, where the headrest is located in the fixed seat by
a support rod member.
2. A headrest for universal folding chairs defined in claim 1,
wherein the support rod member is fixed with a headrest at one end,
and is located in a shaft hole of the fixed seat on the other end
through a rotating shaft. The headrest can turn around the rotating
shaft towards the inner side of the backrest of the folding
chair.
3. A headrest for universal folding chairs defined in claim 2,
wherein the rotating shaft is a structure selected from one of a
rivet, a bolt, or an elastic pin.
4. A headrest for universal folding chairs defined in claim 2,
wherein the shaft hole of the fixed seat is a herringbone
structure. The rotating shaft of the locating support rod is
slidable in the herringbone shaft hole to adjust the angle of the
headrest.
5. A headrest for universal folding chairs defined in claim 3,
wherein a hole of the above herringbone shaft hole is designed to
have a bevel edge.
6. A headrest for universal folding chairs defined in claim 2,
wherein the support rod member is a eudipleural structure including
two support rods, with their upper ends jointly support the
headrest, and their lower ends are respectively located in their
respective fixed seat by a rotating shaft.
7. A headrest for universal folding chairs defined in claim 1,
wherein the support rod member is a eudipleural structure including
two support rods, with their upper ends jointly support the
headrest, and their lower ends are respectively located in their
respective fixed seat by a rotating shaft.
8. A headrest for universal folding chairs defined in claim 1,
wherein, the support rod member is fixed with a headrest at one
end, and runs through a sliding sleeve reserved in the fixed seat
at the other end, and is provided with a locating mechanism in
contact with the sliding sleeve.
9. A headrest for universal folding chairs defined in claim 8,
wherein, the locating mechanism is a spring lock installed on one
side of the fixed seat.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] This application relates to a headrest for universal folding
chairs, especially to a headrest attachable to the top of the
backrest of any folding chair to provide a heat support.
[0003] 2. Background Art
[0004] Existing folding chairs include both steel and wooden
folding chairs used in office areas or folding chairs for outdoor
use during leisure time, etc. Most of these only provide backrest
design, without providing a head support. If the backrest design is
extended, it will be bound to increase the overall volume of the
chair, and will take up the storage space. Such a folding chair is
usually used by people for a short rest on certain occasions. If
the chair could be provided with a head support, then users will
enjoy a more comfortable experience. Therefore, this application
provides at least one suitable design for a headrest for simple and
universal folding chairs.
SUMMARY OF THE INVENTION
[0005] This application provides a design for a headrest for
universal folding chairs with a fixed seat fixedly attachable to
the top of the backrest of folding chairs.
[0006] The technical scheme in this utility model is realized as
follows: a headrest for universal folding chairs, includes a fixed
seat fixedly attachable to the top of the backrest of folding
chairs and a headrest, where the headrest is located in the fixed
seat by way of a support rod.
[0007] The fixed support rod member is fixed with a headrest on one
end, and is located in a shaft hole of the fixed seat on the other
end through a rotating shaft. The headrest can turn about the
rotating shaft towards the inner side of the backrest of the
folding chair.
[0008] The rotating shaft is a structure selected from one of a
rivet, a bolt, or an elastic pin.
[0009] The shaft hole of the fixed seat is a herringbone structure.
The rotating shaft of the locating support rod is slidable in the
herringbone shaft hole to adjust the angle of the headrest.
[0010] In the above shaft hole of a herringbone structure, a hole
is designed to have a bevel edge.
[0011] The support rod member is a eudipleural or "bilaterally
symmetric" structure including two support rods, their upper ends
jointly support the headrest, and their lower ends are respectively
located in their respective fixed seat by a rotating shaft.
[0012] The support rod member is fixed with a headrest at one end,
and runs through the sliding sleeve reserved in the fixed seat at
the other end, and is provided with a locating mechanism in contact
with the sliding sleeve. The locating mechanism is a spring lock
installed on one side of the fixed seat.
[0013] This application teaches a clever and rational design, and
expands the use function of folding chairs. The headrest is fixedly
attached to the top of the backrest of the folding chair with the
help of a fixed seat, so as to provide a head support at the time
of rest. Moreover, the supporting angle of the headrest is properly
adjustable relative to the fixed seat, so as to achieve a more
comfortable experience. When necessary, the headrest may also be
easily detached to maintain the inherent flexibility of folding
chairs.
BRIEF DESCRIPTIONS OF THE DRAWINGS
[0014] This utility model is further illustrated in the light of
specific figures as follows:
[0015] FIG. 1 is a 3D view of a headrest for universal folding
chairs.
[0016] FIG. 2 is a 3D exploded view of a headrest for universal
folding chairs.
[0017] FIG. 3 is a diagram of a round folding chair with a
headrest.
[0018] FIG. 4 is a diagram of a headrest from angle II.
[0019] FIG. 5 is a diagram of a headrest from angle III.
[0020] FIG. 6 is a 3D exploded view of a headrest II for universal
folding chairs.
[0021] FIG. 7 is a 3D view of a folding chair with a headrest.
[0022] FIG. 8 is a 3D view of a folding sofa with a headrest.
[0023] Where reference numerals have been assigned as follows to
the components of embodiments of the invention: [0024] 1--fixed
seat [0025] 11--shaft hole [0026] 12--sliding sleeve [0027]
13--spring lock [0028] 2--headrest [0029] 3--support rod member
[0030] 4--rotating shaft [0031] 41--pin head [0032] 5--folding
chair [0033] 51--beam
DETAILED DESCRIPTION OF THE INVENTION
Example I
[0034] As can be seen from FIGS. 1 and 2, a headrest for universal
folding chairs, comprising a fixed seat 1 and a headrest 2, where
the headrest 2 is located in the fixed seat 1 by a support rod
member 3. More specifically, the support rod member 3 is fixed with
a headrest 2 at one end, and is located in a shaft hole 11 of the
fixed seat 1 on the other end through a rotating shaft 4, in order
to turn around/about the shaft hole 11. Furthermore, the shaft hole
11 of the fixed seat is a herringbone (such as V-shaped or
Y-shaped) structure, so that the rotating shaft 4 of the locating
support rod 3 is slidable in the herringbone shaft hole 11 to
adjust the inclined angle of the headrest 2.
[0035] The rotating shaft 4 is a structure selected from one of a
rivet, a bolt, or an elastic pin. The rotating shaft 4 provided in
this figure is an elastic pin directly inserted into the support
rod member 3. The pin head 41 runs through a hole reserved in the
support rod member 3, is protruded from the surface of the support
rod member 3, and may be inserted into the shaft hole 11 of the
fixed seat to form a movable locating structure. When the pin head
41 is forced by an external force to retract inward, the support
rod member 3 can be detached from the fixed seat 1, and then the
headrest 2 can be detached to maintain the inherent flexibility of
the folding chair.
[0036] In order to cooperate with the rotating shaft 4, i.e. the
retraction action of the elastic pin, a hole of the herringbone
shaft hole 11 may be designed to have a bevel edge. When the
elastic pin is sliding to the bevel edge, the bevel edge
pressurizes the elastic pin head 41, forcing the elastic pin to
retract, so that the support rod member 3 is detached from the
fixed seat 1.
[0037] According to FIG. 3, FIG. 4 and FIG. 5, the folding chair 5
in this example is a round folding chair, lower portion of the
round chair forms a cushion portion, and its high portion forms a
backrest portion. The headrest 2 is fixedly attached to the top of
the backrest of the folding chair 5 with the help of a fixed seat
1, and is more accurately directly fixedly attached to the beam 51
on the top of the backrest. The corresponding beam 51 in this
example is the chair in the high portion. When the head is against
the headrest 2, the support rod member 3 is exactly against the
beam 51 on the top of the backrest of the folding chair 5, so as to
form stress constraints, provide a head support and keep a
comfortable rest pose. The rotating shaft 4 is in different
positions of the herringbone shaft hole 11. The headrest 2 can be
adjusted to a plurality of angles, in order to meet personalized
needs; the headrest 2 may also turn around the rotating shaft 4
towards the inner side of the backrest of the folding chair, to
prevent the headrest 2 from protrusion, which will hinder people
from passing through the back of the folding chair 5.
[0038] In this example, the support rod member 3 is a eudipleural
or symmetrical structure, including two support rods, their upper
ends jointly support the headrest 2, and their lower ends are
respectively located in their respective fixed seat 1 by a rotating
shaft 4. In this structure, the support rod member 3 may use a
small round rod member, which is not only compact, but also has
certain flexibility.
Example II
[0039] As shown with respect to FIG. 6, the headrest 2 and the
support rod member 3 may also use an integrated plastic component.
The support rod member 3 is fixed with a headrest 2 at one end, is
located in a sliding sleeve 12 reserved in the fixed seat 1 on the
other end, and is provided with a locating mechanism in contact
with the sliding sleeve 12. The rotating mechanism is a spring lock
13 installed on one side of the fixed seat 1, and may be detached
from the fixed seat 1 by pulling the headrest 2.
[0040] FIG. 7 is the headrest used in a simple folding chair. FIG.
8 is a diagram of the headrest used in a folding sofa. The above
two folding chairs may also use a headrest with double support rod
members, or an integrated headrest may also be applied to a round
folding chair structure in FIG. 3 in accordance with the aesthetic
design.
[0041] While this invention has been described as having a
preferred design, it is understood that it is capable of further
modifications, uses and/or adaptations of the invention following
in general the principle of the invention and including such
departures from the present disclosure as come within the known or
customary practice in the art to which the invention pertains and
as maybe applied to the central features hereinbefore set forth,
and fall within the scope of the invention and the limits of the
appended claims. It is therefore to be understood that the present
invention is not limited to the sole embodiment described above,
but encompasses any and all embodiments within the scope of the
following claims.
* * * * *