EP1961335A1 - Eingebaute Pumpe für eine Luftmatratze mit einem Einzelventil - Google Patents

Eingebaute Pumpe für eine Luftmatratze mit einem Einzelventil Download PDF

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Publication number
EP1961335A1
EP1961335A1 EP08003118A EP08003118A EP1961335A1 EP 1961335 A1 EP1961335 A1 EP 1961335A1 EP 08003118 A EP08003118 A EP 08003118A EP 08003118 A EP08003118 A EP 08003118A EP 1961335 A1 EP1961335 A1 EP 1961335A1
Authority
EP
European Patent Office
Prior art keywords
airbed
fan
valve
motor
opening
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.)
Granted
Application number
EP08003118A
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English (en)
French (fr)
Other versions
EP1961335B1 (de
Inventor
Luke E. Kelly
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Coleman Co Inc
Original Assignee
Coleman Co Inc
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Filing date
Publication date
Application filed by Coleman Co Inc filed Critical Coleman Co Inc
Publication of EP1961335A1 publication Critical patent/EP1961335A1/de
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Publication of EP1961335B1 publication Critical patent/EP1961335B1/de
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/08—Fluid mattresses or cushions
    • A47C27/081—Fluid mattresses or cushions of pneumatic type
    • A47C27/082—Fluid mattresses or cushions of pneumatic type with non-manual inflation, e.g. with electric pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/084—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation hand fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/50—Fluid-guiding means, e.g. diffusers adjustable for reversing fluid flow
    • F04D29/503—Fluid-guiding means, e.g. diffusers adjustable for reversing fluid flow especially adapted for elastic fluid pumps

Definitions

  • An airbed is a large rectangular rubber or plastic (e.g., vinyl or PVC) bag that is filled with air so that it may be used as a bed.
  • Airbeds are well known in the art and have proven themselves to be very useful.
  • an inflatable airbed may be deflated and folded to store the airbed in a closet or basement.
  • the airbed may be inflated and may be used as a bed.
  • airbeds have in common is that they must be inflated for use.
  • a valve or valves are supplied on an airbed for a user to provide air or another gas into the airbed.
  • a user may utilize a manual or electric pump or an air compressor to inflate an airbed.
  • a built-in pump is provided for an airbed.
  • a receptacle or housing is mounted to the side of the airbed, and the pump is mounted in the receptacle.
  • a single control turns on and off operation of a fan motor and selects whether a fan connected to the fan motor is blowing air into the airbed or is sucking air out of the airbed.
  • the built-in pump is arranged such that a single direction (i.e., non-reversible) fan motor may be used for both purposes.
  • rotation of the control to a first position causes the fan motor to be turned on. The same movement causes rotation of a fan housing, aligning an opening in the fan housing with a valve. The same rotation of the control also causes the valve to open. In this position, air flowing from the fan is directed into the airbed, and the airbed may be inflated.
  • a cam on the fan housing operates to open the valve when the fan housing is turned to this inflate position. Rotating the control back to the starting position releases and closes the valve, and causes the opening to no longer be aligned with the valve. The motor is also shut off.
  • Rotating the control to a different, second position causes the motor to be turned on and a second opening to align with the valve.
  • a second cam opens the valve.
  • the fan housing is aligned such that the fan draws air through the valve from the airbed.
  • the built in pump includes a single valve on the outside of the receptacle/housing for the pump (i.e., internal to the airbed). This valve is mounted on the side of the housing for the pump. This feature permits the airbed to be folded against the back of the housing, allowing more efficient folding and storage.
  • FIGURE 1 is a left side perspective view of a built-in pump in accordance with an embodiment
  • FIG.2 is a right side perspective view of the built-in pump of FIG. 1 , with parts removed for detail;
  • FIG. 3 is a bottom side perspective view of a control knob and a micro switch for the built-in pump of FIG. 1 ;
  • FIG. 4 is a front perspective view of a fan housing and motor for the built-in pump of FIG. 1 ;
  • FIG. 5 is a top exploded perspective view for the fan housing of FIG. 4 ;
  • FIG. 6 is a bottom exploded perspective view of the fan housing of FIG. 4 ;
  • FIG. 7 is a bottom exploded perspective view of a fan for the built-in pump of FIG. 1 ;
  • FIG. 8 is an exploded side perspective view of a valve and valve housing for the built-in pump of FIG. 1 .
  • FIG. 1 shows a built-in pump 20 in accordance with an embodiment.
  • the built-in pump 20 includes a housing 22 that may be built into the side of an airbed A (a portion of which is shown in phantom in FIG. 1 ).
  • the housing 22 for the built-in pump 20 includes a flange 21 that extends adjacent to or just outside of a sidewall for the airbed A. This flange is typically welded into an opening in the airbed.
  • the housing 22 is otherwise located inside the airbed A.
  • the built-in pump 20 shown in the drawings is a dry cell battery operated pump, but features of the invention may be used with a rechargeable battery operated pump or a pump powered in another manner, such as by AC power.
  • the built-in pump 20 includes an optional speaker 24 and air inlet holes 25 on an outer face of the housing 22.
  • a control knob 26 is mounted so that it may be accessed on the outside of the housing 22.
  • the control knob 26 is attached to a shaft 27.
  • a small gear 28 is positioned at a lower portion of the shaft 27.
  • the small gear 28 is positioned so that teeth on the small gear may engage teeth on a larger gear 30.
  • the larger gear 30 is mounted over a motor 32 for the built-in pump 20.
  • the motor 32 is centrally mounted on a fan housing 34.
  • a valve housing 36 is mounted adjacent to the fan housing 34. The valve housing 36 extends out of the side of the housing 22 for the built-in pump 20, as shown in FIG. 1 .
  • a micro switch 38 is mounted adjacent to the shaft 27 that extends downward from the control knob 26.
  • the micro switch 38 includes a switch plunger 39.
  • the shaft 27 includes two protrusions 40, 41 located on the shaft so that they may engage the switch plunger 39 upon rotation of the control knob 26.
  • the first protrusion 40 engages the switch plunger 39.
  • Rotating the control knob 26 in an opposite direction causes the second protrusion 41 to engage the switch plunger 39 for the micro switch 38. If one of the protrusions 40, 41 is not engaged with the switch plunger 39, then the switch plunger 39 is in an outer, "off" position.
  • the micro switch 38 is utilized to turn on and off operation of the motor 32.
  • the motor 32 is a single direction motor. Such a motor is less expensive than a reversible motor.
  • Features of the built-in pump 20 permit utilization of a single direction motor to inflate and deflate an airbed utilizing a single valve, as will be described in more detail below.
  • the fan housing 34 includes a top plate 42 having a motor mount 43 positioned at its center.
  • the motor 32 is mounted in the motor mount 43.
  • a middle plate 44 is positioned below the top plate 42, and a bottom plate 46 is positioned below the middle plate 44.
  • the fan housing 34 and the motor 32 are positioned to rotate within the housing 22 about a central axis 48. In an embodiment, the fan housing 34 and the motor 32 are positioned so that weight for the two items is evenly distributed about the axis 48. The function of this feature is described below.
  • a fan 52 ( FIG. 7 ) is positioned between the top plate 42 and the middle plate 44.
  • the fan 52 is similar to the fan disclosed in U.S. Publication No. 2000/0073040, published April 6, 2006 , although different fans may be used.
  • the fan includes an upper wall 56 and a lower cover 58.
  • the lower cover 58 serves as a bottom wall for the fan 52.
  • This lower cover 58 extends adjacent to the lower portion of the middle plate 44 of the fan housing 34.
  • Blades 60 extend between the upper wall 56 and the lower cover 58 from a position spaced from a central axis of the fan 52 outward to outer edges or tips of the fan 52.
  • An air inlet 62 is positioned centrally in the cover 58 and is in fluid communication with the blades 60.
  • the motor 32 rotates the fan 52 and air is drawn into the air inlet 62 of the fan and is blown through the blades 60 and out of the tips of the fan 52.
  • the upper wall 56 and the lower cover 58 direct the majority of the air outward in an efficient manner.
  • a valve 68 (shown best in FIG. 8 ) is mounted in the valve housing 36 and includes a valve plunger 70.
  • the valve plunger 70 is arranged so that it engages a cam surface 72 (e.g., FIG. 2 ) that is positioned along the top plate 42 of the fan housing 34.
  • the cam surface 72 can be seen in more detail in FIG. 4 .
  • the cam surface 72 includes an inflate portion 74, a central closed portion 76, and an outer deflate portion 78.
  • the inflate and deflate portions 74, 78 extend adjacent to and along an outer perimeter of the top plate 42.
  • the closed portion 76 includes a concave portion that extends inward from the outer perimeter of the top plate 42.
  • an inflate opening 80 and a deflate opening 82 are positioned just below the cam surface 72 positioned just below the cam surface 72.
  • the inflate opening 80 opens directly into a fan chamber 84 formed between the top plate 42 and the middle plate 44.
  • the fan 52 is mounted in this fan chamber 84.
  • a wall 86 (see FIG. 6 ) is positioned on the top plate 42 just behind the deflate opening 82.
  • An opening 88 (best seen in FIG. 5 ) is positioned just ahead of the wall 86 and extends through the middle plate 44.
  • the deflate opening 82 is in fluid communication with an area underneath the middle plate 44. This area is closed by the bottom plate 46 to form a lower chamber 90.
  • a central opening 92 in the middle plate 44 fluidly connects the lower chamber 90 with the air inlet 62 of the fan 52. The fan 52 is seated against the central opening 92 to ensure air flow from the lower chamber into the fan.
  • the valve housing includes a rear plate 100 having openings 101 therein.
  • a front plate 102 is positioned between the rear plate 100 and the fan housing 34.
  • the valve 68 is positioned between the rear plate 100 and the front plate 102.
  • the plunger 70 for the valve 68 extends through an opening 103 in the front plate 102.
  • a spring 104 is positioned between the rear plate 100 and the valve 68, and biases the valve 68 toward the front plate 102. In the embodiment shown in the drawings, in a normally closed position forced by the spring 104, the valve 68 seats against the front plate 102 to close the valve housing 34.
  • a director plate 106 is mounted on the front of the valve housing 34.
  • the director plate 106 closes the front end of the valve housing, with the exception of an opening 108 positioned at a lower portion of the director plate.
  • the opening 108 includes a front concave edge 110 that matches the outer circumference of the fan housing 34. This front concave edge 110 is positioned tightly against the outer circumference of the fan housing, as shown in FIG. 2 .
  • a user rotates the control knob 26 to change the operation from an inflate mode to a deflate mode or to an off position.
  • a central position is the off position
  • a deflate position is obtained by rotating the control knob 26 in a counterclockwise direction
  • an inflate position is obtained by rotating the control knob in a clockwise direction.
  • the user rotates the control knob 26 to the deflate position.
  • the protrusion 40 engages the switch plunger 39 for the micro switch 38, turning on the motor 32.
  • the small gear 28 rotates the larger gear 30, causing the motor 32 and the fan housing 34 to rotate.
  • the plunger 70 moves along the cam surface 72 to the deflate portion 78. In this position, the cam surface 72 pushes the plunger 70 rearward, opening the valve 68.
  • the opening 108 on the director plate 106 aligns with the deflate opening 82 on the fan housing 34.
  • This arrangement puts the valve housing 36 in fluid communication with the air inlet 62 of the fan 52 via the lower chamber 90 of the fan housing 34. Rotation of the fan 52 by the motor 32 causes air to flow from the airbed, through the valve housing 36, into the fan 52, and out of the built-in pump 20. In this manner, the airbed is deflated.
  • a single valve 68 is used to inflate and deflate the pump 20.
  • the valve 68 is opened and closed by a manual, mechanical function (i.e., rotation of the control knob 26), so a solenoid is not needed to open the valve.
  • a single knob 26 controls operation of the motor and the valve, and aligns the valve with the appropriate inlet or outlet of the fan 52. By rearranging the fan housing 34, a single direction fan 52 and motor 32 may be used, saving expense.
  • valve 68 and valve housing 36 are mounted on one side of the housing 22, whereas most prior art built-in pumps include one or more valves on the back of the pump housing. Mounting the valve 68 on the side of the housing permits the airbed to be stored adjacent to the rear of the housing, allowing more efficient folding and storing of the airbed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Compressor (AREA)
EP08003118A 2007-02-23 2008-02-20 Eingebaute Pumpe für eine Luftmatratze mit einem Einzelventil Active EP1961335B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89146707P 2007-02-23 2007-02-23

Publications (2)

Publication Number Publication Date
EP1961335A1 true EP1961335A1 (de) 2008-08-27
EP1961335B1 EP1961335B1 (de) 2010-04-21

Family

ID=39244717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08003118A Active EP1961335B1 (de) 2007-02-23 2008-02-20 Eingebaute Pumpe für eine Luftmatratze mit einem Einzelventil

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US (1) US20080201857A1 (de)
EP (1) EP1961335B1 (de)
AT (1) ATE464814T1 (de)
AU (1) AU2008200788A1 (de)
DE (1) DE602008000999D1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3450767A1 (de) * 2017-09-05 2019-03-06 WangLi Plastic & Electronics (Huizhou) Co., Ltd. Einknopf-luftpumpe
US11339792B2 (en) 2017-09-05 2022-05-24 Wangli Plastic & Electronics (Huizhou) Co., Ltd. Air pump with automatic stop of inflation and deflation

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201391431Y (zh) * 2009-03-26 2010-01-27 东莞虎邦五金塑胶制品有限公司 充气床垫用气泵
CN101666309B (zh) * 2009-07-17 2011-07-27 先驱塑胶电子（惠州）有限公司 一种充泄气控制装置
US9033678B2 (en) * 2012-03-01 2015-05-19 Dongguan Tiger Point Metal & Plastic Products Co., Ltd. Air pump having an auto-stop control device
CN206368786U (zh) 2016-12-08 2017-08-01 明达实业(厦门)有限公司 泵与充气产品的连接结构
CN107476998B (zh) * 2017-09-05 2023-07-14 旺利塑胶电子（惠州）有限公司 一种单旋钮气泵
CN208669644U (zh) 2018-05-16 2019-03-29 明达实业(厦门)有限公司 一种具有多通道充放气功能的泵浦
US11549514B2 (en) 2017-11-27 2023-01-10 Intex Marketing Ltd. Manual inflation and deflation adjustment structure for a pump
CN108087247A (zh) * 2018-01-31 2018-05-29 江苏亿美电器有限公司 开关机构及充气泵
CN108317097A (zh) * 2018-02-01 2018-07-24 江苏亿美电器有限公司 充气泵
CN208619292U (zh) * 2018-06-25 2019-03-19 中山骏宏塑胶制品有限公司 一种气泵
CN109538448A (zh) * 2018-12-21 2019-03-29 旺利塑胶电子（惠州）有限公司 一种外接气泵

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224706A (en) 1978-10-16 1980-09-30 Dial-A-Firm, Inc. Pneumatic bed
US5588811A (en) 1994-07-14 1996-12-31 Price Manufacturing, Inc. Air bed diaphragm pump
WO2002082955A1 (en) 2001-03-30 2002-10-24 Chaffee, Robert, B. Pump with axial conduit
US20030037839A1 (en) * 2001-08-23 2003-02-27 Rong-Jyh Song A device with an motor driven impellar pump and an electronically and manually actuated air valve for controlling the filling and exhausting of an air cushion
US6543073B2 (en) 2001-08-27 2003-04-08 Hsin-Tsai Wu Inflation seat assembly for an inflatable article
US20060065322A1 (en) * 2004-09-30 2006-03-30 Hsin-Tsai Wu Air pump assembly for inflating and deflating an inflatable article
DE202006000537U1 (de) * 2005-08-05 2006-12-07 Wu, Hsin-Tsai Aufblas-/Ablassvorrichtung für einen aufblasbaren Gegenstand

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2528332A1 (en) * 2003-06-09 2005-01-06 Aero International Products, Inc. Reversible inflation system
CN2782996Y (zh) * 2005-03-11 2006-05-24 谢森源 可调式进出气气泵
CN2786331Y (zh) * 2005-03-25 2006-06-07 王正宗 具有隐藏式充气泵的充气产品
US7127762B1 (en) * 2005-05-12 2006-10-31 Ideal Time Consultants Limited Inflatable product with stowable pump

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224706A (en) 1978-10-16 1980-09-30 Dial-A-Firm, Inc. Pneumatic bed
US5588811A (en) 1994-07-14 1996-12-31 Price Manufacturing, Inc. Air bed diaphragm pump
WO2002082955A1 (en) 2001-03-30 2002-10-24 Chaffee, Robert, B. Pump with axial conduit
US20030037839A1 (en) * 2001-08-23 2003-02-27 Rong-Jyh Song A device with an motor driven impellar pump and an electronically and manually actuated air valve for controlling the filling and exhausting of an air cushion
US6543073B2 (en) 2001-08-27 2003-04-08 Hsin-Tsai Wu Inflation seat assembly for an inflatable article
US20060065322A1 (en) * 2004-09-30 2006-03-30 Hsin-Tsai Wu Air pump assembly for inflating and deflating an inflatable article
DE202006000537U1 (de) * 2005-08-05 2006-12-07 Wu, Hsin-Tsai Aufblas-/Ablassvorrichtung für einen aufblasbaren Gegenstand

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3450767A1 (de) * 2017-09-05 2019-03-06 WangLi Plastic & Electronics (Huizhou) Co., Ltd. Einknopf-luftpumpe
US11339792B2 (en) 2017-09-05 2022-05-24 Wangli Plastic & Electronics (Huizhou) Co., Ltd. Air pump with automatic stop of inflation and deflation

Also Published As

Publication number Publication date
EP1961335B1 (de) 2010-04-21
AU2008200788A1 (en) 2008-09-11
ATE464814T1 (de) 2010-05-15
DE602008000999D1 (de) 2010-06-02
US20080201857A1 (en) 2008-08-28

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