Inflatable pad having reinforcing units
An inflatable pad includes an inflatable pad body having a top layer, a bottom layer, and an annular surrounding layer interconnecting the top and bottom layers and cooperating with the top and bottom layers to define an inflatable space. A plurality of tubular reinforcing units are disposed in the inflatable space of the inflatable pad body. Each reinforcing unit has an annular outer surface having opposite polygonal attaching areas that face respectively the top and bottom layers of the pad body. A periphery of each of the polygonal attaching areas is attached fixedly to a corresponding one of the top and bottom layers of the pad body.
This application claims priority of Chinese Application No. 200620155256.0, filed on Dec. 22, 2006.
BACKGROUND OF THE INVENTION1. Field of the Invention
The invention relates to an inflatable pad, more particularly to an inflatable pad having reinforcing units.
2. Description of the Related Art
Referring to
Therefore, the object of the present invention is to provide an inflatable pad that has reinforcing units capable of overcoming the aforesaid drawback of the prior art.
According to the present invention, an inflatable pad comprises:
an inflatable pad body having a top layer, a bottom layer, and an annular surrounding layer interconnecting the top and bottom layers and cooperating with the top and bottom layers to define an inflatable space; and
a plurality of tubular reinforcing units disposed in the inflatable space of the inflatable pad body, each of the reinforcing units having an annular outer surface having opposite polygonal attaching areas that face respectively the top and bottom layers of the pad body, a periphery of each of the polygonal attaching areas being attached fixedly to a corresponding one of the top and bottom layers of the pad body.
Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiment with reference to the accompanying drawings, of which:
Referring to
The inflatable pad body 1 has a top layer 11, a bottom layer 12, and an annular surrounding layer 13 interconnecting the top and bottom layers 11, 12 and cooperating with the top and bottom layers 11, 12 to define an inflatable space 10.
The reinforcing units 4 are disposed in the inflatable space 10 of the inflatable pad body 1, and are arranged in an array. Referring to
Referring to
While the present invention has been described in connection with what is considered the most practical and preferred embodiment, it is understood that this invention is not limited to the disclosed embodiment but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.
Claims
1. An inflatable pad comprising:
- an inflatable pad body having a top layer, a bottom layer, and an annular surrounding layer interconnecting said top and bottom layers and cooperating with said top and bottom layers to define an inflatable space; and
- a plurality of tubular reinforcing units disposed in said inflatable space of said inflatable pad body, each of said reinforcing units having an annular outer surface having opposite polygonal attaching areas that face respectively said top and bottom layers of said pad body, a periphery of each of said polygonal attaching areas being attached fixedly to a corresponding one of said top and bottom layers of said pad body.
2. The inflatable pad as claimed in claim 1, wherein said attaching areas of said annular outer surface of each of said reinforcing units are hexagonal.
3. The inflatable pad as claimed in claim 1, wherein each of said attaching areas of said annular outer surface of each of said reinforcing units has a plurality of sides, at least two of which are parallel to each other.
4. The inflatable pad as claimed in claim 3, wherein the at least two of said sides of each of said attaching areas of said annular outer surface of each of said reinforcing units are longer than the other ones of said sides thereof.
5. The inflatable pad as claimed in claim 4, wherein the at least two of said sides of each of said attaching areas of said annular outer surface of each of said reinforcing units extend in a longitudinal direction of a corresponding one of said tubular reinforcing units.
6. The inflatable pad as claimed in claim 1, wherein each of said attaching areas of said annular outer surface of each of said reinforcing units is chamfered at each of corners thereof.
7. The inflatable pad as claimed in claim 1, wherein each of said attaching areas of said annular outer surface of each of said reinforcing units is regular hexagonal.
Type: Application
Filed: Jul 2, 2007
Publication Date: Jun 26, 2008
Inventor: Hsin-Tsai Wu (Taipei City)
Application Number: 11/822,086
International Classification: A47C 27/08 (20060101);