CA2238593A1 - Inflating valve - Google Patents
Inflating valve Download PDFInfo
- Publication number
- CA2238593A1 CA2238593A1 CA002238593A CA2238593A CA2238593A1 CA 2238593 A1 CA2238593 A1 CA 2238593A1 CA 002238593 A CA002238593 A CA 002238593A CA 2238593 A CA2238593 A CA 2238593A CA 2238593 A1 CA2238593 A1 CA 2238593A1
- Authority
- CA
- Canada
- Prior art keywords
- web portion
- plug
- tubular spout
- peripheral flange
- inflating valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- Check Valves (AREA)
Abstract
An inflating valve includes inner and outer pieces which have first and second peripheral flanges for cementing together and a central plug and a central tubular spout to be sealingly fitted together. A
frusto-conical shaped first web portion is formed between the plug and the first peripheral flange to project inward from the first peripheral flange and is provided with a plurality of passage holes for communication with the tubular spout. A second web portion of frusto-conical shape is formed between the tubular spout and the second peripheral flange to abut against the first peripheral flange and can be flexed at its wider end so as to separate the tubular spout from the plug.
frusto-conical shaped first web portion is formed between the plug and the first peripheral flange to project inward from the first peripheral flange and is provided with a plurality of passage holes for communication with the tubular spout. A second web portion of frusto-conical shape is formed between the tubular spout and the second peripheral flange to abut against the first peripheral flange and can be flexed at its wider end so as to separate the tubular spout from the plug.
Description
CA 02238~93 1998-0~-22 ., , IN~LATING VALVE
BACKGROUND OF THE INVENTION
1. Field of the Invention This invention relates to an inflating valve, particularly to one which has inner and outer pieces for attachment to an inflatable and which includes a tubular spout and a plug formed respectively in the outer and inner pieces to protrude into the inside of the inflatable.
BACKGROUND OF THE INVENTION
1. Field of the Invention This invention relates to an inflating valve, particularly to one which has inner and outer pieces for attachment to an inflatable and which includes a tubular spout and a plug formed respectively in the outer and inner pieces to protrude into the inside of the inflatable.
2. Brief Description of the Prior Art It is known in the art to provide inflatables, such as, beach balls, air cushions, swimming rings, etc., with inflating valves for filling the same with air or gas and for preventing the escape of gas after filling. Inflating valves generally comprise a flat 15 attachment flange to be attached to the wall of an inflatable by a high frequency sealing process, a tubular spout formed with the attachment flange and a plug to be sealingly inserted into the tubular spout.
In a typical construction, the attachment flange is 20 formed at an inner wider end of a frusto-conical hollow member, and the tubular spout disposed inside the frusto-conical hollow member projects outwardly from the outer narrower end of the frusto-conical hollow member. The plug is formed on a flexible strap which 25 is hinged to outer end of the tubular spout, and a split is formed in the circumferential wall of the CA 02238~93 1998-0~-22 tubular spout inside the frusto-conical hollow member to provide fluid communication between the interior spaces of the tubular spout and the frusto-conical hollow member, thereby permitting air to enter into the inflatable through the tubular spout, the split and the frusto-conical hollow member. However, several problems are encountered in such a construction.
Firstly, since almost all parts of the inflating valve protrude outward from the surface of the inflatable to which it is attached, the plug is-susceptible of separation from the tubular spout by accident, and the protruding flexible strap thereof, when folded to close the spout, can accidentally hurt the user. Therefore, the location for mounting the inflating valve must be selected so as not to be easily touched by the body of the user when the inflatable - article is in use. Further, the split formed in the circumferential wall of the tubular spout must be carefully dimensioned so as to prevent rapid escape of gas in case of accidental separation of the plug from the spout. The need to find acceptable dimension for the split is inconvenient because, if the split is large, the inflatable can be undesirably deflated at a fast rate through the split, and if the split is small, deflation would be so slow that a considerable amount of time and energy is required to deflate the CA 02238~93 1998-0~-22 inflatable so as to keep it ready for transportation or storage.
on the other hand, because the plug is formed on a breakable hinged strap, the inflating valve is dangerous for an infant who may bite the strap during playing with the inflatable. For safety purposes, some European countries require commodity tests for such inflating valves in order to investigate the bearing strength of the strap, and manufacturers have to conduct stringent quality control in producing such inflating valves. Difficulties are encountered in selecting materials for the valves because soft materials are easily breakable although they would not injure the user, whereas strong materials increase chances of hurting the user.
SUMMARY OF THE INVENTION
An object of the invention is to provide an inflating valve which can overcome the above-described disadvantages.
Another object of the invention is to provide an inflating valve which does not protrude from the surface of an inflatable, thereby alleviating the risk of accidentally opening the valve and hurting the user.
A further object of the invention is to provide an inflating valve which dispenses with the use of a strap which is breakable or susceptible of hurting the user.
CA 02238~93 1998-0~-22 These and other objects can be achieved through the provision of an inflating valve which comprises:
an inner piece having a plug, a first web portion which is formed around the plug and which has passage holes, and a first peripheral flange which is formed around the first web portion for attachment to an inflatable; and an outer piece having a tubular spout pluggable by the plug, a second web portion formed around the tubular spout to abut against the first web portion, and a second peripheral flange formed around the second web portion for cementation with the first peripheral flange, the second web portion being flexible to move away from the first web portion so as to separate the tubular spout from the plug and so as to place the tubular spout in a fluid communication relationship with the passage holes.
Other objects, features and advantages of the present invention will become more fully apparent from the following detailed description of the preferred embodiment with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS:
Figure 1 is a sectional view of a preferred embodiment of an inflating valve according to the present invention in a closed position;
Figure 2 is an exploded view of the preferred CA 02238~93 1998-0~-22 , embodiment shown in Figure 1; and Figure 3 is a sectional view of the preferred embodiment of Figure 1 in an opened position.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
s Referring to Figures 1 and 2, a preferred embodiment of an inflating valve according to the present invention is shown to comprise an outer piece 3 and an inner piece 4 which are disposed in a mounting .
hole 10 of a wall of an inflatable 1, for example, a cushion, a swimming ring, or the like, and which are attached to the wall of the inflatable 1 and a fixing layer 11.
The outer piece 3 is made of a flexible plastic material and comprises a central tubular spout 30, a flexible web portion 31 formed around the tubular spout 31, and a peripheral flange 310 formed around the web portion 31 for cementing to the wall of the inflatable 1. The web portion 31 has a frusto-conical shape and includes a wider end connected to the peripheral flange 310 and a narrower end connected to the tubular spout 30. The web portion 31 is capable of flexing at the wider end to project into or outward of the inflatable ' -1 .
The inner piece 4 is preferably made of a plastic material more rigid than that used for the outer piece 3, and comprises a central plug 40 to be press fitted CA 02238~93 1998-0~-22 in the tubular spout 30, a web portion 42 formed around the central plug 40, and a peripheral flange 41 formed around the web portion 42 for cementing to the peripheral flange 310 and the wall of the inflatable 1.
5 The web portion 42 is generally frusto-conical and projects inwardly from the peripheral flange 41. The wider outer end of the web portion 42 is connected to the peripheral flange 41, and the narrower inner end - thereof is connected to an inner end of the central plug 40, thereby holding the central plug 40 within the interior space of the web portion 42. A plurality of passage holes 420 are formed in the web portion 42 at different angular positions, and ribs 421 project outward from the outer surface of the web portion 42.
The web portion 31 of the outer piece 3 can be pushed inward and placed in abutment with the web portion 42 of the inner piece 4 to cover the passage holes 420 when the tubular spout 30 is press fitted into the plug 40. The tubular spout 30 has an outer end portion 301 which extends axially and outwardly of the outer end of the plug 40 so that the plug 40 is entirely received in the tubular spout 30. A radially projecting annular flange 302 is formed at the outer end portion 301 for handling. Preferably, the annular flange 302 is knurled to avoid slippage during handling. By pulling the annular flange 302, the CA 02238~93 1998-0~-22 tubular spout 30 can be removed from the plug 40.
Preferably, the tubular spout 30 may be configured such that the passage confined thereby slightly diverges inward so as to facilitate insertion or separation of the plug 40.
As shown in Figure 1, after inflating the inflatable 1, the tubular spout 30 of the outer piece 3 is pushed inward to be sleeved on the plug 40, thereby blocking the tubular spout 30 and causing the web portion 31 to abut against the web portion 42 and to cover the passage holes 420. The inflating valve is in a closed position under this situation.
Referring to Figure 3, when the inflatable is inflated or deflated, the tubular spout 30 is pulled outward and the web portion 31 is separated from the web portion 42, thereby forming a space between the web portions 31 and 42 to communicate the tubular spout 30 and the passage holes 420. The inflating valve is thereby opened and permits air to flow into or out of the inflatable through the tubular spout 30 and the passage holes 420.
As shown in Figure 3, when the inflating valve is in its closed position, except for a small portion of the tubular spout 30 which protrudes out from the outer surface of the inflatable 1, all other portions of the inflating valve project inwardly from the inner surface CA 02238~93 1998-0~-22 ' of the inflatable 1. As a result, the problems encountered with the prior art described beforehand are eliminated in the present invention.
With the invention thus explained, it is apparent that various modifications and changes can be made without departing from the scope and spirit of the invention, especially, as defined in the following claims.-
In a typical construction, the attachment flange is 20 formed at an inner wider end of a frusto-conical hollow member, and the tubular spout disposed inside the frusto-conical hollow member projects outwardly from the outer narrower end of the frusto-conical hollow member. The plug is formed on a flexible strap which 25 is hinged to outer end of the tubular spout, and a split is formed in the circumferential wall of the CA 02238~93 1998-0~-22 tubular spout inside the frusto-conical hollow member to provide fluid communication between the interior spaces of the tubular spout and the frusto-conical hollow member, thereby permitting air to enter into the inflatable through the tubular spout, the split and the frusto-conical hollow member. However, several problems are encountered in such a construction.
Firstly, since almost all parts of the inflating valve protrude outward from the surface of the inflatable to which it is attached, the plug is-susceptible of separation from the tubular spout by accident, and the protruding flexible strap thereof, when folded to close the spout, can accidentally hurt the user. Therefore, the location for mounting the inflating valve must be selected so as not to be easily touched by the body of the user when the inflatable - article is in use. Further, the split formed in the circumferential wall of the tubular spout must be carefully dimensioned so as to prevent rapid escape of gas in case of accidental separation of the plug from the spout. The need to find acceptable dimension for the split is inconvenient because, if the split is large, the inflatable can be undesirably deflated at a fast rate through the split, and if the split is small, deflation would be so slow that a considerable amount of time and energy is required to deflate the CA 02238~93 1998-0~-22 inflatable so as to keep it ready for transportation or storage.
on the other hand, because the plug is formed on a breakable hinged strap, the inflating valve is dangerous for an infant who may bite the strap during playing with the inflatable. For safety purposes, some European countries require commodity tests for such inflating valves in order to investigate the bearing strength of the strap, and manufacturers have to conduct stringent quality control in producing such inflating valves. Difficulties are encountered in selecting materials for the valves because soft materials are easily breakable although they would not injure the user, whereas strong materials increase chances of hurting the user.
SUMMARY OF THE INVENTION
An object of the invention is to provide an inflating valve which can overcome the above-described disadvantages.
Another object of the invention is to provide an inflating valve which does not protrude from the surface of an inflatable, thereby alleviating the risk of accidentally opening the valve and hurting the user.
A further object of the invention is to provide an inflating valve which dispenses with the use of a strap which is breakable or susceptible of hurting the user.
CA 02238~93 1998-0~-22 These and other objects can be achieved through the provision of an inflating valve which comprises:
an inner piece having a plug, a first web portion which is formed around the plug and which has passage holes, and a first peripheral flange which is formed around the first web portion for attachment to an inflatable; and an outer piece having a tubular spout pluggable by the plug, a second web portion formed around the tubular spout to abut against the first web portion, and a second peripheral flange formed around the second web portion for cementation with the first peripheral flange, the second web portion being flexible to move away from the first web portion so as to separate the tubular spout from the plug and so as to place the tubular spout in a fluid communication relationship with the passage holes.
Other objects, features and advantages of the present invention will become more fully apparent from the following detailed description of the preferred embodiment with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS:
Figure 1 is a sectional view of a preferred embodiment of an inflating valve according to the present invention in a closed position;
Figure 2 is an exploded view of the preferred CA 02238~93 1998-0~-22 , embodiment shown in Figure 1; and Figure 3 is a sectional view of the preferred embodiment of Figure 1 in an opened position.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
s Referring to Figures 1 and 2, a preferred embodiment of an inflating valve according to the present invention is shown to comprise an outer piece 3 and an inner piece 4 which are disposed in a mounting .
hole 10 of a wall of an inflatable 1, for example, a cushion, a swimming ring, or the like, and which are attached to the wall of the inflatable 1 and a fixing layer 11.
The outer piece 3 is made of a flexible plastic material and comprises a central tubular spout 30, a flexible web portion 31 formed around the tubular spout 31, and a peripheral flange 310 formed around the web portion 31 for cementing to the wall of the inflatable 1. The web portion 31 has a frusto-conical shape and includes a wider end connected to the peripheral flange 310 and a narrower end connected to the tubular spout 30. The web portion 31 is capable of flexing at the wider end to project into or outward of the inflatable ' -1 .
The inner piece 4 is preferably made of a plastic material more rigid than that used for the outer piece 3, and comprises a central plug 40 to be press fitted CA 02238~93 1998-0~-22 in the tubular spout 30, a web portion 42 formed around the central plug 40, and a peripheral flange 41 formed around the web portion 42 for cementing to the peripheral flange 310 and the wall of the inflatable 1.
5 The web portion 42 is generally frusto-conical and projects inwardly from the peripheral flange 41. The wider outer end of the web portion 42 is connected to the peripheral flange 41, and the narrower inner end - thereof is connected to an inner end of the central plug 40, thereby holding the central plug 40 within the interior space of the web portion 42. A plurality of passage holes 420 are formed in the web portion 42 at different angular positions, and ribs 421 project outward from the outer surface of the web portion 42.
The web portion 31 of the outer piece 3 can be pushed inward and placed in abutment with the web portion 42 of the inner piece 4 to cover the passage holes 420 when the tubular spout 30 is press fitted into the plug 40. The tubular spout 30 has an outer end portion 301 which extends axially and outwardly of the outer end of the plug 40 so that the plug 40 is entirely received in the tubular spout 30. A radially projecting annular flange 302 is formed at the outer end portion 301 for handling. Preferably, the annular flange 302 is knurled to avoid slippage during handling. By pulling the annular flange 302, the CA 02238~93 1998-0~-22 tubular spout 30 can be removed from the plug 40.
Preferably, the tubular spout 30 may be configured such that the passage confined thereby slightly diverges inward so as to facilitate insertion or separation of the plug 40.
As shown in Figure 1, after inflating the inflatable 1, the tubular spout 30 of the outer piece 3 is pushed inward to be sleeved on the plug 40, thereby blocking the tubular spout 30 and causing the web portion 31 to abut against the web portion 42 and to cover the passage holes 420. The inflating valve is in a closed position under this situation.
Referring to Figure 3, when the inflatable is inflated or deflated, the tubular spout 30 is pulled outward and the web portion 31 is separated from the web portion 42, thereby forming a space between the web portions 31 and 42 to communicate the tubular spout 30 and the passage holes 420. The inflating valve is thereby opened and permits air to flow into or out of the inflatable through the tubular spout 30 and the passage holes 420.
As shown in Figure 3, when the inflating valve is in its closed position, except for a small portion of the tubular spout 30 which protrudes out from the outer surface of the inflatable 1, all other portions of the inflating valve project inwardly from the inner surface CA 02238~93 1998-0~-22 ' of the inflatable 1. As a result, the problems encountered with the prior art described beforehand are eliminated in the present invention.
With the invention thus explained, it is apparent that various modifications and changes can be made without departing from the scope and spirit of the invention, especially, as defined in the following claims.-
Claims (5)
1. An inflating valve for an inflatable, comprising:
an inner piece having a plug, a first web portion which is formed around said plug and which has passage holes, and a first peripheral flange which is formed around said first web portion for attachment to the inflatable; and an outer piece having a tubular spout pluggable by said plug, a second web portion formed around said tubular spout to abut against said first web portion, and a second peripheral flange formed around said second web portion for cementation with said first peripheral flange, said second web portion being flexible to move away from said first web portion so as to separate said tubular spout from said plug and so as to place said tubular spout in fluid communication with said passage holes.
an inner piece having a plug, a first web portion which is formed around said plug and which has passage holes, and a first peripheral flange which is formed around said first web portion for attachment to the inflatable; and an outer piece having a tubular spout pluggable by said plug, a second web portion formed around said tubular spout to abut against said first web portion, and a second peripheral flange formed around said second web portion for cementation with said first peripheral flange, said second web portion being flexible to move away from said first web portion so as to separate said tubular spout from said plug and so as to place said tubular spout in fluid communication with said passage holes.
2. An inflating valve as claimed in Claim 1, wherein said first web portion is substantially frusto-conical and projects inwardly from said first peripheral flange, said first web portion having an outer wider end connected to said first peripheral flange and an inner narrower end connected to said plug, thereby holding said plug inside said first web portion.
3. An inflating valve as claimed in Claim 2, wherein said second web portion has a frusto-conical shape and includes a wider end connected to said second peripheral flange and a narrower end connected to said tubular spout, said second web portion being capable of flexing at said wider end thereof.
4. An inflating valve as claimed in Claim 3, wherein said inner piece is made of a material which is more rigid than that of said outer piece.
5. An inflating valve as claimed in Claim 3, wherein said tubular spout has an outer end portion for extending axially and outwardly of said plug, thereby completely receiving said plug, said outer end portion being provided with a radially projecting flange for handling.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1997004549U JP3044824U (en) | 1997-05-30 | 1997-05-30 | Charging valve |
| JP4549/97 | 1997-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2238593A1 true CA2238593A1 (en) | 1998-11-30 |
Family
ID=11587141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002238593A Abandoned CA2238593A1 (en) | 1997-05-30 | 1998-05-22 | Inflating valve |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3044824U (en) |
| CA (1) | CA2238593A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006119552A1 (en) * | 2005-05-06 | 2006-11-16 | Bolster Trading Pty Ltd | Valve for a bladder |
| EP2910284A2 (en) | 2014-02-24 | 2015-08-26 | Beth-El Zikhron-Ya'aqov Industries, Ltd. | Valve closure mechanism and an air blast valve using said valve closure mechanism |
-
1997
- 1997-05-30 JP JP1997004549U patent/JP3044824U/en not_active Expired - Lifetime
-
1998
- 1998-05-22 CA CA002238593A patent/CA2238593A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006119552A1 (en) * | 2005-05-06 | 2006-11-16 | Bolster Trading Pty Ltd | Valve for a bladder |
| EP2910284A2 (en) | 2014-02-24 | 2015-08-26 | Beth-El Zikhron-Ya'aqov Industries, Ltd. | Valve closure mechanism and an air blast valve using said valve closure mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3044824U (en) | 1998-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |