U.S. patent application number 16/047005 was filed with the patent office on 2019-02-07 for inflatable stand up board.
The applicant listed for this patent is Bestway Inflatables & Material Corp.. Invention is credited to Shuiyong HUANG.
Application Number | 20190039698 16/047005 |
Document ID | / |
Family ID | 61796054 |
Filed Date | 2019-02-07 |
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United States Patent
Application |
20190039698 |
Kind Code |
A1 |
HUANG; Shuiyong |
February 7, 2019 |
INFLATABLE STAND UP BOARD
Abstract
An inflatable stand up board, comprising: a top layer having a
first perimeter; a bottom layer having a second perimeter; a drop
stitch layer disposed between the top layer and the bottom layer; a
first sealing sheet coupled in an airtight configuration to the
first perimeter and the second perimeter; a second sealing sheet
disposed at least at one of a front end or a tail end of the
inflatable stand up board. The second sealing sheet is coupled in
an airtight configuration to the first and second perimeters, and
overlaps at least part of the first sealing sheet. The top layer,
the bottom layer and the first sealing sheet define an inflatable
chamber of the inflatable stand up board. The side of the
inflatable stand up board is not easily broken and a double sealing
effect is achieved, preventing air leakage.
Inventors: |
HUANG; Shuiyong; (Shanghai,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Bestway Inflatables & Material Corp. |
Shanghai |
|
CN |
|
|
Family ID: |
61796054 |
Appl. No.: |
16/047005 |
Filed: |
July 27, 2018 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B63B 32/51 20200201;
B63B 32/57 20200201 |
International
Class: |
B63B 35/79 20060101
B63B035/79 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 4, 2017 |
CN |
201720968926.9 |
Claims
1. An inflatable stand up board, comprising: a top layer having a
first perimeter; a bottom layer having a second perimeter; a drop
stitch layer coupled to and disposed between the top layer and the
bottom layer; a first sealing sheet coupled in an airtight fashion
to the first perimeter and the second perimeter; and a second
sealing sheet disposed at least at one of a front end and a tail
end of the inflatable stand up board, the tail end being opposite
the front end; wherein the top layer, the bottom layer, and the
first sealing sheet define an inflatable chamber of the inflatable
stand up board; and wherein the second sealing sheet is coupled to
the first perimeter and the second perimeter and overlaps at least
part of the first sealing sheet.
2. The inflatable stand up board of claim 1, wherein the second
sealing sheet comprises a front sealing sheet disposed at the front
end of the inflatable stand up board and a tail sealing sheet
disposed at the tail end of the inflatable stand up board.
3. The inflatable stand up board of claim 1, wherein the second
sealing sheet spans the first perimeter and the second
perimeter.
4. The inflatable stand up board of claim 1, wherein the first
sealing sheet has a first lip and a second lip; wherein the first
lip overlaps the first perimeter, forming a first border and the
second lip overlaps the second perimeter forming a second border;
and wherein the second sealing sheet overlaps the first and second
borders.
5. The inflatable stand up board of claim 4, wherein an adhesive
layer is disposed between the first sealing sheet and the second
sealing sheet.
6. The inflatable stand up board of claim 5, wherein the adhesive
layer comprises: a first adhesive strip disposed proximate the
first border, creating a first airtight connection at the first
boarder; and a second adhesive strip disposed proximate the second
border, creating a second airtight connection at the second
border.
7. The inflatable stand up board of claim 4, wherein an adhesive
layer is disposed between the first perimeter and the first lip,
creating an airtight connection; and wherein an additional adhesive
layer is disposed between the second perimeter and the second lip,
creating an additional airtight connection.
8. The inflatable stand up board of claim 1, wherein the drop
stitch layer comprises an upper base layer coupled to the top
layer, a lower base layer coupled to the bottom layer, and
tensioning members disposed between and coupled to the upper base
layer and the lower base layer.
9. The inflatable stand up board of claim 8, wherein the upper base
layer is coupled to the top layer via an adhesive layer disposed
between the upper base layer and the top layer, and the lower base
layer is coupled to the bottom layer via a separate adhesive layer
disposed between the lower base layer and the bottom layer.
10. The inflatable stand up board of claim 5, wherein the adhesive
layer is formed by curing a complex glue, wherein the complex glue
comprises a glue and a fixing agent having a mass ratio between 5%
and 10%.
11. The inflatable stand up board of claim 6, wherein at least one
adhesive layer is formed by curing a complex glue, wherein the
complex glue comprises a glue and a fixing agent having a mass
ratio between 5% and 10%.
12. The inflatable stand up board of claim 7, wherein the adhesive
layer is formed by curing a complex glue, wherein the complex glue
comprises a glue and a fixing agent having a mass ratio between 5%
and 10%.
13. The inflatable stand up board of claim 9, wherein the adhesive
layer is formed by curing a complex glue, wherein the complex glue
comprises a glue and a fixing agent having a mass ratio between 5%
and 10%.
14. An inflatable stand up board, comprising: a top layer having a
first perimeter; a bottom layer having a second perimeter; a drop
stitch layer coupled to and disposed between the top layer and the
bottom layer; a first sealing sheet coupled in an airtight fashion
to the first perimeter and the second perimeter; a first sealing
strip coupled to the top layer and the first sealing sheet; a
second sealing strip coupled to the bottom layer and the first
sealing sheet; wherein the top layer, the bottom layer, and the
first sealing sheet define an inflatable chamber of the inflatable
stand up board.
15. The inflatable stand up board of claim 14, wherein the first
sealing sheet has a first lip and a second lip; and wherein, the
first lip overlaps the first perimeter, forming a first border, and
the second lip overlaps the second perimeter forming a second
border; wherein the first sealing strip overlaps the first border
and the second sealing strip overlaps the second border.
16. The inflatable stand up board of claim 15, wherein a first
adhesive layer is disposed between the first sealing strip and the
first sealing sheet, creating a first airtight connection proximate
the first border; and a second adhesive layer is disposed between
the second sealing strip and the first sealing sheet, creating a
second airtight connection proximate the second border.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the priority of Chinese Patent
Application No. 201720968926.9, filed Aug. 4, 2017, which is
incorporated herein by reference in its entirety.
TECHNICAL FIELD
[0002] The present disclosure generally relates to products for
aquatic sports and, more particularly, to an inflatable stand up
board.
BACKGROUND
[0003] Inflatable stand up boards provide boarders with access to
numerous aquatic activities. Surfboarders can stand or sit on the
inflatable board and participate in numerous aquatic sports. The
inflatable stand up board can be designed to encompass various
shapes, as needed, to achieve various functions. For example, the
inflatable stand up board can be a surfboard for surfing, can be
used with a paddle for paddleboarding when waves are not present,
and can further be used as a flotation device for aided
swimming.
[0004] The inflatable stand up board has the ability to support
boarders and float on water due to air filled chambers therein.
Unfortunately, due to collisions or impacts with external objects,
inflation chambers can be damaged during use, causing air leakage
and loss of buoyancy. This air leakage and loss of buoyancy
presents a dangerous scenario for those using the board.
Accordingly, there is a need to provide an inflatable stand up
board that can prevent air leakage during use.
SUMMARY
[0005] The above mentioned problems are solved according to the
present invention, which provides an inflatable stand up board
comprising: a top layer with a first perimeter; a bottom layer with
a second perimeter; a drop stitch layer coupled to and disposed
between the top layer and the bottom layer, which is uniquely
adapted to maintain the predetermined shape of the inflatable stand
up board upon inflation; a first sealing sheet circumferentially
surrounding the top layer and the bottom layer and coupled in an
airtight fashion to the first perimeter and the second perimeter;
and a second sealing sheet. The second sealing sheet is disposed at
least at the front end and the tail end of the inflatable stand up
board (the two ends being on opposing sides of the board), and is
coupled to at least a portion of the first perimeter and the second
perimeter. The second sealing sheet also overlaps at least part of
the first sealing sheet. The board's inflatable chamber is defined
by the top layer, the bottom layer, and the first sealing
sheet.
[0006] Alternatively, the second sealing sheet may comprise a front
sealing sheet disposed at the front end of the inflatable stand up
board and a tail sealing sheet which is disposed at the tail end of
the inflatable stand up board. Ideally, however, the second sealing
sheet will surround the circumference of the board such that the
second sealing sheet spans the first perimeter and the second
perimeter of the top and bottom layers respectively.
[0007] Alternatively, the first sealing sheet has a first lip and a
second lip. The first lip overlaps the first perimeter, forming a
first border and the second lip overlaps the second perimeter
forming a second border. Furthermore, the second sealing sheet can
overlap the first and second borders to provide additional
securement.
[0008] In one embodiment, an adhesive layer is disposed between the
first sealing sheet and the second sealing sheet; the adhesive may
cover all or a portion of the inner surface of the second sealing
sheet.
[0009] Alternatively, the adhesive layer disposed between the first
and second sheets may comprise: a first adhesive strip disposed
proximate the first border, creating a first airtight connection at
the first boarder; and a second adhesive strip disposed proximate
the second border, creating a second airtight connection at the
second border.
[0010] In another embodiment, an adhesive layer is disposed between
the first perimeter and the first lip, all of which overlap,
creating an airtight connection. Similarly, another adhesive layer
may be disposed between the second perimeter and the second lip,
all of which overlap, creating another airtight connection.
[0011] In a particularly advantageous embodiment, the drop stitch
layer comprises an upper base layer coupled to the top layer, a
lower base layer coupled to the bottom layer, and tensioning
members disposed between and coupled to the upper and lower base
layers.
[0012] In yet another embodiment, the upper base layer is coupled
to the top layer via an adhesive layer disposed between the upper
base layer and the top layer. Similarly, the lower base layer is
coupled to the bottom layer via a separate adhesive layer disposed
between the lower base layer and the bottom layer.
[0013] In an advantageous embodiment, at least one of the adhesive
layers is formed by curing a complex glue, which comprises a glue
and a curing agent. Ideally, the cuing agent has a mass ratio
between 5% and 10%.
[0014] The present disclosure also provides an inflatable stand up
board, comprising: a top layer with a first perimeter; a bottom
layer with a second perimeter; a drop stitch layer disposed between
the top layer and the bottom layer, which is uniquely adapted to
maintain the predetermined shape of the inflatable stand up board
upon inflation; a first sealing sheet circumferentially surrounding
the top layer and the bottom layer and coupled in an airtight
fashion to the first perimeter and the second perimeter; a first
sealing strip coupled to the top layer and the first sealing sheet;
and a second sealing strip coupled to the bottom layer and the
first sealing sheet. The top layer, the bottom layer, and the first
sealing sheet define the inflatable chamber of the inflatable stand
up board.
[0015] Alternatively, the first sealing sheet has a first lip and a
second lip wherein the first lip overlaps the first perimeter
forming a first border, and the second lip overlaps the second
perimeter forming a second border. Additionally, the first sealing
strip overlaps the first border and the second sealing strip
overlaps the second border.
[0016] In an advantageous embodiment, a first adhesive layer is
disposed between the first sealing strip and the first sealing
sheet, creating a first airtight connection proximate the first
border. Furthermore, a second adhesive layer is disposed between
the second sealing strip and the first sealing sheet, creating a
second airtight connection proximate the second border.
[0017] The above listed embodiments present numerous advantages
over the prior art including an airtight connection between the
first and second sealing sheets and the top layer and the bottom
layer. Accordingly, the inflatable stand up board achieves a double
sealing effect, preventing air leakage. The double sealing effect
makes it difficult to puncture or damage the air seals or the side
surface of the inflatable stand up board, meaning users can avoid
dangerous conditions presented during deflation of an inflatable
stand up board.
BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The above-mentioned and other features and advantages of
this disclosure, and the manner of attaining them, will become more
apparent and better understood by reference to the following
detailed description taken in conjunction with the accompanying
drawings, wherein:
[0019] FIG. 1 is a perspective view of the inflatable stand up
board.
[0020] FIG. 2 is a cross-sectional view taken along Line A-A, shown
in FIG. 1.
[0021] FIG. 3 is an enlarged view of Area B, as shown in FIG. 2,
according to one embodiment of the present disclosure.
[0022] FIG. 4 is an alternate enlarged view of Area B, as shown in
FIG. 2, according to an alternate embodiment.
[0023] FIG. 5 is another alternate enlarged view of Area B, as
shown in FIG. 2, according to another alternate embodiment.
DETAILED DESCRIPTION
[0024] Detailed examples are provided below for the purpose of ease
of understanding the present disclosure. The exemplary embodiments
of the present disclosure are described below with reference to the
drawings for illustration. It should be understood that, the
description of the exemplary embodiments should not be construed as
limiting the scope of the present disclosure in any manner.
[0025] Referring to FIGS. 1 to 3, an inflatable stand up board 100
is shown. The board 100 comprises a top layer 10, a bottom layer
20, a drop stitch layer 30, and a first sealing sheet 40. The top
and bottom layers 10, 20 are generally parallel to each other. The
top layer 10, the bottom layer 20, and the first sealing sheet 40
are preferably constructed of waterproof material. In particular,
the top layer 10, the bottom layer 20, and the first sealing sheet
40 can be formed from PVC (polyvinyl chloride) material,
thermoplastic elastomer (TPE) material, polyester or polyether
thermoplastic polyurethanes elastic rubber PU, or other suitable
materials.
[0026] When in use, the top layer 10 is typically in contact with
the boarder's body. Referring to FIG. 1, the inflatable stand up
board 100 may further utilize an anti-slipping layer 12 disposed on
the top layer 10. The anti-slipping layer 12 is designed to contact
a boarder's body and can be used to increase the friction
coefficient between the board 100 and the body, decreasing the
likelihood of slipping off the board during use. The top layer 10
has a first perimeter 11 surrounding the circumference of the top
layer 10. The bottom layer 20 is typically in contact with the
water, when in use, and has a second perimeter 21 surrounding the
circumference of the bottom layer 20. The first sealing sheet 40
acts as side surface of the inflatable stand up board, coupled to
the top layer 10 and the bottom layer 20 at the first perimeter 11
and the second perimeter 21, thus forming airtight seals in both
locations.
[0027] As a result of the affixation, an inflatable chamber is
formed in the board 100 which is defined by the top layer 10, the
bottom layer 20, and the first sealing sheet 40. The drop stitch
layer 30 is disposed within the inflatable chamber and is uniquely
adapted to maintaining a predetermined shape of the inflatable
stand up board 100 upon inflation.
[0028] In addition, the inflatable stand up board 100 may include a
fixing base 13. The fixing base 13 is disposed on the top layer 10
and is depressed toward the bottom layer 20. The fixing base 13 is
used for affixing a mast, fishing pole, camera stand, or the like
to the board 100, enabling the boarder to fish or take photos while
boarding.
[0029] In one embodiment, a rear control (not shown) may also be
provided, that is disposed on the bottom layer 20. In particular, a
mounting hole for the rear control is disposed on the bottom layer
20 of the inflatable stand up board 100, in which the rear control
is disposed. The rear control is adapted to provide additional
stability to the inflatable stand up board 100 during flotation.
The rear control may also be used to adjust the floating direction
of the inflatable stand up board 100.
Example 1
[0030] In a first example, with reference to FIG. 3, the inflatable
stand up board 100 further comprises a second sealing sheet 50 in a
ring shape, surrounding the top layer 10 and the bottom layer 20,
and coupled in an airtight manner to the first perimeter 11 and the
second perimeter 21. The second sealing sheet 50 covers the first
sealing sheet 40. The second sealing sheet 50 is ideally
constructed of the same or similar material as that of the first
sealing sheet 40.
[0031] Both the first sealing sheet 40 and the second sealing sheet
50 are affixed in an airtight manner to the first and second
perimeters 11 and 21, achieving a double sealing effect for the
inflatable stand up board 100. This double sealing effect prevents
damage or puncture to the sidewalls of the board 100, thereby
avoiding the dangerous condition of air leakage during use.
[0032] It should be noted that, in other modified embodiments, a
plurality of sealing sheets can be disposed. For example, three or
more sealing sheets can be disposed at the sides of the inflatable
stand up board, such that the inner sealing sheets are covered by
the outer sealing sheets, thus achieving an improved sealing
effect.
[0033] As shown in FIG. 3, the first sealing sheet 40 has a first
lip 41 disposed on a first end of an inner side of the first
sealing sheet, proximate the first perimeter 11 and a second lip 42
disposed on a second end of an inner side of the first sealing
sheet, proximate the second perimeter 21. The first lip 41 overlaps
the first perimeter 11 to form a first border aa. Similarly, the
second lip 42 overlaps the second perimeter 21 to form a second
border bb. The second sealing sheet 50 overlaps the first and
second borders aa and bb.
[0034] According to a particularly advantageous embodiment, a first
adhesive layer 61 is disposed between the first lip 41 and the
first perimeter 11. The adhesive has the effect of forming an
airtight seal between the first lip 41 and the first perimeter 11.
The first border aa is the connection site of the first sealing
sheet 40 and the top layer 10. Similarly, a second adhesive layer
62 is disposed between the second lip 42 and the second perimeter
21, again forming an airtight seal between the second lip 42 and
the second perimeter 21. The second border bb is the connection
site of the first sealing sheet 40 and the bottom layer 20.
[0035] The first border aa and the second border bb are protected
from exposure to the outside environment via the second sealing
sheet 50, which overlaps the first border aa and the second border
bb (i.e., the second sealing sheet 50 covers the first sealing
sheet 40 and the top layer 10 at the first border aa and the second
sealing sheet 50 and bottom layer 20 at the second border bb). This
overlapping feature prevents external substances from contacting
and damaging the first border aa and the second border bb, further
preventing air leakage of the inflatable stand up board.
[0036] As is additionally shown in FIG. 3, a third adhesive layer
63 is disposed between the first sealing sheet 40 and the second
sealing sheet 50, which covers the inner surface of the second
sealing sheet 50. The result of the third adhesive layer 63 is such
that the first sealing sheet 40 is fixedly coupled to the second
sealing sheet 50. In comparison to utilizing only the first sealing
sheet 40, the side thickness of the inflatable stand up board as
described in this example is increased, further protecting the side
from damage and air leakage.
[0037] In addition, since the first sealing sheet 40 is covered by
the second sealing sheet 50 and the third adhesive layer 63 covers
the inner surface of the second sealing sheet 50, the third
adhesive layer 63 circumferentially overlaps the top layer 10 and
the bottom layer 20. The second sealing sheet 50 covers the third
adhesive layer 63, resulting in an airtight connection amongst the
second sealing sheet 50, the top layer 10, and the bottom layer
20.
[0038] Referring again to FIG. 3, the drop stitch layer 30 is shown
which comprises an upper base layer 31, a lower base layer 32, and
tensioning members 33 disposed between the upper base layer 31 and
the lower base layer 32. The tensioning members 33 are coupled to
the upper and lower base layers 31 and 32 at both ends thereof, and
ensure a constant distance between the upper and lower base layers
31 and 32 upon inflation. Ideally, the inflatable stand up board
100 is formed as a flat plate shape upon inflation, though other
shapes are anticipated. The tensioning members may consist of any
form of string, wire, or other lightweight, durable, material.
[0039] In order to ensure the shape of the board 100, the upper
base layer 31 of the drop stitch layer 30 is coupled to the top
layer 10 of the board 100. Additionally, the lower base layer 20 is
coupled to the bottom layer 20, effectively connecting the top
layer 10 with the bottom layer 20 via the drop stitch layer 30. In
order to achieve this connection, a fourth adhesive layer 64 is
disposed between the upper base layer 31 and the top layer 10,
which serves as an affixation means between the upper base layer 31
and the top layer 10. Additionally, a fifth adhesive layer 65 is
disposed between the lower base layer 32 and the bottom layer 20,
which serves as the affixation means between the upper base layer
31 and the top layer 10.
[0040] In a particular embodiment, the first, second, third,
fourth, and/or fifth adhesive layers 61, 62, 63, 64, and/or 65 are
formed by curing a complex glue. The complex glue preferably
comprises a glue and a fixing agent. The fixing agent has a mass
ratio between 5% and 10%, preferably 6%; though other ratios are
anticipated, depending on the type of glue used. Exemplary glue
types include polyurethane or other glues. The fixing agent can be
isocyanate or any other suitable fixing agent.
Example 2
[0041] In another example board, a second sealing sheet is provided
that does not completely surround the top layer 10 or the bottom
layer 20. The second sealing sheet only partially encompasses the
first perimeter 11 and the second perimeter 21.
[0042] Referring to FIG. 1, the inflatable stand up board 100 has a
front end 100a and a tail end 100b. The front end 100a and tail end
100b are generally located on opposing sides of the board 100. This
embodiment is particularly advantageous when viewed from a board
use perspective. While using the inflatable stand up board 100,
more collisions occur at the front end 100a and the tail end 100b
than occur at the sides of the inflatable stand up board 100, thus
it is advantageous to reinforce the front end 100a and tail end
100b to ensure adequate protection from air leakage.
[0043] Accordingly, in the present embodiment, the second sealing
sheet comprises a front sealing sheet (not shown) which is disposed
at the head end 100a of the inflatable stand up board and a tail
sealing sheet (not shown) which is disposed at the tail end 100b of
the inflatable stand up board. Particularly, at the head end 100a
and the tail end 100b of the inflatable stand up board, the first
sealing sheet 40 is covered by the front and tail sealing sheets
from a portion of the first perimeter to a portion of the second
perimeter.
[0044] The front and tail sealing sheets are respectively disposed
at the head end 100a and the tail end 100b, such that double
protection and sealing effects are produced at the head end 100a
and the tail end 100b of the inflatable stand up board, thus
reducing the risk of damage and air leakage from the inflatable
chamber.
[0045] In other modified examples, only the front sealing sheet is
disposed at the head end 100a of the inflatable stand up board 100.
Alternately, only the tail sealing sheet is disposed at the tail
end 100b of the inflatable stand up board 100.
Example 3
[0046] In another exemplary embodiment and referring to FIG. 4,
less than all of the inner surface of the second sealing sheet 50
is coated with the adhesive layer between the first sealing sheet
40 and the second sealing sheet 50. In particular, the second
sealing sheet 50 comprises a third lip 51 covering the first border
aa and a fourth lip 52 covering the second border bb. A sixth
adhesive layer 66 is disposed between the third lip 51 and the
first border aa to achieve an airtight connection. A seventh
adhesive layer 67 is disposed between the fourth lip 52 and the
second border bb to achieve an airtight connection.
[0047] Other than the sixth and seventh adhesive layers, 66 and 67,
no adhesive is disposed between the first sealing sheet 40 and the
second sealing sheet 50. The adhesive layers 66 and 67 are merely
disposed proximate the first perimeter of the top layer 10 and the
second perimeter of the bottom layer 20 (i.e., proximate the first
border aa and the second border bb). This configuration creates a
hollow cavity 68, defined between the first and second sealing
sheets 40 and 50.
[0048] Exposure of the first and second borders aa and bb to the
external environment can be avoided through covering the first
border aa by the third lip 51 and covering the second border bb by
the fourth lip 52, such that the first and second borders aa and bb
are protected from damage. The third and fourth lips 51 and 52 also
add to the double sealing effect, further preventing air leakage of
the inflatable stand up board 100.
Example 4
[0049] In yet another example and with reference to FIG. 5, the
second sealing sheet of the inflatable stand up board comprises a
first and second sealing strip 71 and 72. The first sealing strip
is coupled to the first perimeter 11 of the top layer and a second
sealing strip 72 is coupled to the second perimeter 21 of the
bottom layer.
[0050] In this example, the first sealing strip 71 is in a ring
shape, surrounding the first perimeter of the top layer 10. The
first sealing strip 71 couples the top layer 10 and the first
sealing strip 40 in an airtight configuration. The second sealing
strip 72 is additionally in a ring shape, surrounding the second
perimeter of the bottom layer 20. Similarly, the second sealing
strip 72 couples the bottom layer 20 and the first sealing sheet 40
in another airtight configuration.
[0051] In particular, the first sealing sheet 40 has a first lip 41
disposed on a first end of an inner side of the first sealing
sheet, proximate the first perimeter 11 and a second lip 42
disposed on a second end of an inner side of the first sealing
sheet, proximate the second perimeter 21. The first lip 41 overlaps
the first perimeter 11 to form a first border aa. Similarly, the
second lip 42 overlaps the second perimeter 21 to form a second
border bb. The first sealing strip 71 overlaps the first border aa
and the second sealing strip 72 overlaps the second border bb.
[0052] A first adhesive layer 61 is disposed between the first lip
41 and the first perimeter 11, securing the two in an airtight
manner at the first border aa. A second adhesive layer 62 is
disposed between the second lip 42 and the second perimeter 21,
securing the two in an airtight manner at the second border bb.
[0053] Exposure of the first border aa to the external environment
can be avoided through covering the first border aa by the first
sealing strip 71, such that external substances are prevented from
contacting and damaging the first border aa. Similarly, exposure of
the second border bb to the external environment can be avoided
through covering the second border bb by the second sealing strip
72, such that external substances are prevented from contacting and
damaging the second border bb.
[0054] Furthermore, with reference to FIG. 5, a sixth adhesive
layer 66 is disposed between the first sealing strip 71 and the
first border aa to achieve an airtight connection. A seventh
adhesive layer 67 is disposed between the second sealing strip 72
and the second border bb to achieve an additional airtight
connection. As such, a double sealing effect is achieved, further
preventing air leakage from the inflation chamber.
[0055] In this example, both first and second sealing strips 71 and
72 are in a ring shape to surrounding the top layer 10 and bottom
layer 20. In other modified examples the first and second sealing
strips 71 and 72 can be in a band shape for affixation to the front
end or the tail end of the inflatable stand up board (examples of
which are provided at least in Example 2 herein). Additional shapes
are anticipated, depending on the shape of the board's
perimeter.
[0056] While the particular embodiments of the present disclosure
have been described, a person skilled in the art should understand
that these are merely illustrative, and that the scope of
protection of the present invention is defined by the appended
claims. Various alterations or modifications can be made by a
person skilled in the art to these embodiments without departing
from the principle and substance of the present disclosure;
however, these alterations and modifications all fall within the
scope of protection of the present disclosure.
* * * * *