U.S. patent application number 11/529520 was filed with the patent office on 2007-03-29 for high chair with a backrest having adjustable inclination.
This patent application is currently assigned to Link Treasure Limited. Invention is credited to Wei-Yeh Li.
Application Number | 20070069566 11/529520 |
Document ID | / |
Family ID | 37433206 |
Filed Date | 2007-03-29 |
United States Patent
Application |
20070069566 |
Kind Code |
A1 |
Li; Wei-Yeh |
March 29, 2007 |
High chair with a backrest having adjustable inclination
Abstract
A high chair for a child with a simple control mechanism for
adjusting the inclination of the backrest, including a foldable
frame work, a seat portion, a backrest, an adjusting mechanism
movable along the backrest, and a connecting element pivitolly
interconnected between the adjusting mechanism and the foldable
frame work. The adjusting mechanism can be manipulated to move
along the backrest and carries the connecting element to pivotally
change to different inclination angles, so as to support the
backrest at different inclination angles.
Inventors: |
Li; Wei-Yeh; (Tainan County,
TW) |
Correspondence
Address: |
BIRCH STEWART KOLASCH & BIRCH
PO BOX 747
FALLS CHURCH
VA
22040-0747
US
|
Assignee: |
Link Treasure Limited
|
Family ID: |
37433206 |
Appl. No.: |
11/529520 |
Filed: |
September 29, 2006 |
Current U.S.
Class: |
297/377 ;
297/16.1 |
Current CPC
Class: |
A47D 1/002 20130101;
A47D 1/023 20170501 |
Class at
Publication: |
297/377 ;
297/016.1 |
International
Class: |
A47D 1/02 20060101
A47D001/02 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 29, 2005 |
TW |
094216816 |
Claims
1. A high chair with a backrest having adjustable inclination,
comprising: a foldable framework having a deployed position and a
foldable position; a backrest having a pair of adjusting channels
and a guide slot, the pair of adjusting channels and the guide slot
being parallel; a seat portion having two sides pivotally connected
to the foldable framework and a rear end pivotally connected with
the backrest; a connecting element having a pair of arms and a
pivot portion, wherein the arms connect to the pivot portion at one
end, and the arms are pivotally interconnect the foldable framework
at the other end; and an adjusting mechanism movable connected with
the backrest, having a pivotal base which pivotally holds the pivot
portion of the connecting element and carries the connecting
element to provide adjustable inclination support for the backrest,
and has the pivotal base having a pair of catching blocks for
movably engaging with the bottom of the adjusting channels to
releasably fix the inclination position of the connecting
element
2. The high chair with a backrest having adjustable inclination as
claimed in claim 1, wherein the adjusting mechanism further
includes a limiting piece and a manipulating member, the limiting
piece being formed with a pair of salient posts which pass through
the guide slot of the backrest, and the manipulating member being
rotatably connected with the pivot base and formed with a prop-up
portion and a pair of receiving troughs for slidably receiving the
salient post.
3. The high chair with a backrest having adjustable inclination as
claimed in claim 2, wherein the adjusting mechanism further
includes a resilient element telescopically accommodated within the
receiving trough for biasing against the pair of salient posts,
thereby providing a force to keep the pair of catching blocks
engaged with the bottom of the adjusting channels, so as to fix the
inclination support of the connecting element and the backrest.
4. The high chair with a backrest having adjustable inclination as
claimed in claim 3, wherein the resilient element is a compression
spring.
5. The high chair with a backrest having adjustable inclination as
claimed in claim 2, wherein the catching block and the bottom of
the adjusting channel are formed with detent-like portions, through
which a user can push the backrest upwards to change the
inclination angle of the backrest without pressing the manipulating
member.
6. The high chair with a backrest having adjustable inclination as
claimed in claim 1, wherein the foldable framework has a front leg
and a rear leg and a pivot element, the pivot element being
pivotally connected with the front leg, the rear leg and the
connecting element, so as to deploy the front leg and rear leg to
support the seat portions or collapse the front leg and rear leg
into a compact size for storing in a limited space.
7. The high chair with a backrest having adjustable inclination as
claimed in claim 1, wherein the connecting element is pivotally
connected to the pivot element.
8. The high chair with a backrest having adjustable inclination as
claimed in claim 1, wherein the prop-up portion protrudes from the
pivotal base for pressing against the backrest and causing the
backrest to move when the manipulating member is pressed to
turn.
9. A high chair with a backrest having adjustable inclination,
comprising: a foldable frame work pivotally connected with a seat
portion; a backrest pivotally connected with the seat portion; an
adjusting mechanism movable along the backrest; and a connected
element interconnected between the adjusting mechanism and the
foldable frame work, wherein the adjustable mechanism can be
manipulated to move along the backrest and carries the connecting
element to pivotally change to different inclination angles, so as
to support the backrest at different inclination angles.
10. The high chair with a backrest having adjustable inclination as
claimed in claim 9, wherein the foldable framework has a front leg
and a rear leg and a pivot element the pivot element being
pivotally connected with the front leg, the rear leg and the
connecting element, so as to deploy the front leg and rear leg to
support the seat portion or collapse the front leg and rear leg
into a compact size for storing in a limited space.
11. The high chair with a backrest having adjustable inclination as
claimed in claim 9, wherein the connecting element is pivotally
connected to the pivot element.
Description
BACKGROUND OF THE INVENTION
[0001] 1.Field of the Invention
[0002] This invention relates to a high chair for children with
backrest having adjustable inclination and, more particularly, to a
high chair which makes use of a pivotal base movable along an
adjusting channel of the backrest for pivotally carrying a
connecting element, thereby providing the backrest with different
support angles, so as to adjust the inclination angle of the
backrest.
[0003] 2.Description of the Prior Art
[0004] A high chair provides a child with a seat for taking a meal.
Examples of high chairs can be found in U.S. Pat. No. 5,435,620,
U.S. Pat. No. 4,958,885, U.S. Pat. No. 5,509,719, U.S. Pat. No.
5,348,374, U.S. Pat. No. 5,507,550, U.S. Pat. No. 5,806,922, U.S.
Pat. No. 5,829,826, U.S. Pat. No. 5,927,805, U.S. Pat. No.
5,951,102, and U.S. Pat. No. 6,010,184. Basically, a high chair may
comprise a seat portion, a meal tray on top of the seat portion,
and a set of chair legs which stand on the floor.
[0005] To accommodate children of different ages who may still be
growing or those who may be short, the backrest must be adjusted
according to each child's size, to find an inclination angle
comfortable for each specific child. U.S. Pat. No. 6,666,505
provides an example of angle adjustment for a backrest, wherein the
backrest adjusting device is furnished at both sides of the seat
portion so as to adjust the inclination angle of the backrest.
However, the structure of said chair is complicated and tedious.
Further, for effecting the adjustment, it is necessary to
manipulate both sides of the chair at same time.
SUMMARY OF THE INVENTION
[0006] In order to resolve the above-mentioned troubles with
operation, the present invention provides a high chair for children
with a simple control mechanism for adjusting the inclination of
the backrest. The high chair for children according to the present
invention may including a foldable frame work, a seat portion, a
backrest, an adjusting mechanism movable along the backrest, and a
connecting element pivotally interconnected between the adjusting
mechanism and the foldable frame work. The adjusting mechanism can
be manipulated to move along the backrest and carries the
connecting element pivotally to change to different inclination
angles, so as to support the backrest at different inclination
angles.
[0007] Preferably, the backrest further has an adjusting channel
elongated in a vertical direction for guiding the adjusting
mechanism.
[0008] The adjusting mechanism preferably includes a pivotal base
and a manipulating member wherein the pivotal base has a catching
block for positioning along the adjusting channel. The manipulating
member is pivotally connected to the pivotal base. When adjusting
the backrest, a user can move the manipulating member with one hand
and carry the connecting element to different inclination angles
that can support the backrest with desired inclination angles.
[0009] During adjusting the backrest, a user can feel the weight of
the baby with the hand. The user is therefore capable of avoiding
the hazard of a suddenly drop of the backrest.
[0010] Further scope of the applicability of the present invention
will become apparent from the detailed description given
hereinafter. However, it should be understood that the detailed
description and specific examples, while indicating preferred
embodiments of the invention, are given by way of illustration
only, since various changes and modifications within the spirit and
scope of the invention will become apparent to those skilled in the
art from this detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The present invention will become more fully understood from
the detailed description given hereinbelow and the accompanying
drawings which are given by way of illustration only, and thus are
not limitative of the present invention, and wherein:
[0012] FIG. 1 is a side view of a high chair with a backrest having
adjustable inclination of the present invention;
[0013] FIG. 2 is an exploded view of the members of an adjustable
device of the present invention;
[0014] FIG. 3 is an exploded view from another view angle different
from that of the FIG. 2 of the members of an adjustable device of
the present invention;
[0015] FIG. 4 is a cross-sectional view of the assembly of a limit
sheet and a pivotal base of the present invention;
[0016] FIG. 5 is a cross-sectional view showing that the adjusting
channel meshes with catching block of the present invention;
[0017] FIG. 6 is a cross-sectional view showing the action that the
prop-up portion of the manipulating member pushes the backrest to
move of the present invention;
[0018] FIG. 7 is a side view showing that the backrest rotates at
different angles of the present invention;
[0019] FIG. 8 is a side view showing that the framework of the
child high chair is folded up of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0020] Referring to FIGS. 1 and 7, an embodiment of a high chair
(3) for a child according to the present invention includes a
foldable frame work (2), a seat portion (31), a backrest (32), an
adjusting mechanism (5) movable along the backrest (32), and a
connecting element (4) which is pivotally interconnected to the
adjusting mechanism (5) and the foldable frame work (2). The
adjusting mechanism (5) can be manipulated to move along the
backrest (32), thereby pivotally carrying the connecting element
(4) to different inclination angles, so as to support the backrest
at a variety of corresponding inclination angles. A user can
therefore adjust the inclination of the backrest with one hand
only.
[0021] Referring to FIGS. 7 and 8, the position of the foldable
framework (2) includes a deployed position and a collapsed
position. The foldable framework (2) has a front leg (21), a rear
leg (22) and a pivot element (23). The pivot element (23) pivotally
connects with the front leg (21), the rear leg (22) and the
connecting element (4), so that the front leg (21) and rear leg
(22) can either be deployed to support the seat portion (31), or
collapsed into a compact size for storage in a limited space.
[0022] The seat portion (31) pivotally connects the front leg (21)
and the rear leg (22) at the both sides, and pivotally connects the
backrest (32) at a rear end therefore. This allows the backrest
(32) to pivot about the rear end of the seat portion (31), as seen
in the dashed lines illustrated in FIG. 7.
[0023] In order to guide movement of the adjusting mechanism (5)
along the backrest (32), the back of the backrest (32) may
preferably be formed with two adjusting channels (321) which extend
parallel to each other as shown in FIG. 2. Furthermore, a slot
(322) is formed parallel to the two adjusting channels (321) as
shown in FIG. 3.
[0024] The connecting element (4) has two arms (41) and a pivotal
portion (42). The arms (41) extend parallel to each other.
Referring to FIGS. 1 to 3, each of the arms (41) pivots with the
pivot element (23) at one end, and connects to the pivotal portion
(42) at the other end. The arms therefore form a U-shaped
connecting element (4) which pivotally interconnects the foldable
framework (2) and the backrest (32), and provides the backrest (32)
with support for different inclination angles, as the dashed line
shows schematically in FIG. 7.
[0025] Referring to FIGS. 2 to 6, the adjusting mechanism (5) may
further comprise a pivotal base (51), a limiting piece (53) and a
manipulating member (52). The pivotal base (51) pivotally holds the
pivotal portion (42) of the connecting element (4), and can carry
the pivotal portion (42) while moving along the adjusting channels
(321), in order to provide adjustable inclination support for the
backrest (32).
[0026] Referring to FIG. 3, the pivotal base (51) is formed with a
pair of catching blocks (511) and a pair of receiving troughs
(512), wherein the pair of catching blocks (511) can selectively
engage with the bottom of the adjusting channels (321), as is shown
in FIG. 5. The manipulating member (52) is pivotally connected to
the pivotal base (51) and formed with a prop-up portion (521). The
limiting piece (53) is formed with a pair of salient posts (54)
which is configured to penetrate through the guided slot (322) and
may be moved back and forth within the receiving trough (512) of
the pivotal base (51) as shown in FIG. 4. Preferably, a resilient
element (55) is telescopically accommodated within the receiving
trough (512) for biasing against the pair of salient posts (54),
thereby providing a force to keep the pair of catching block (511)
engaged with the bottom of the adjusting channels (321). This fixes
the inclination position of the connecting element (4) and the
backrest (32). In this embodiment, the resilient element can be a
compression spring.
[0027] Once the manipulating member (52) is pressed in the
direction indicated by the arrow indicated in the FIG. 6, the
prop-up portions (521) are turned to press against the surface of
the backrest (32), thereby lifting the catching blocks (511) to
disengage from the adjusting channels (321). This carries and
moveably repositions the connecting element (4) along the adjusting
channels (321) into a new inclination position.
[0028] Preferably, the catching block (511) and the bottom of the
adjusting channel (321) are formed and engaged with a pawl or
detent-like portions, through which a user can push the backrest
(32) upwardly to change the inclination angle without pressing the
manipulating member (52). In this way, the present application
creates a more convenient method of operating a high chair, and
facilitates operation and adjustment of the backrest with only one
hand.
[0029] The invention being thus described, it will be obvious that
the same may be varied in many ways. Such variations are not to be
regarded as a departure from the spirit and scope of the invention,
and all such modifications as would be obvious to one skilled in
the art are intended to be included within the scope of the
following claims.
* * * * *