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Publication numberUS3891115 A
Publication typeGrant
Publication dateJun 24, 1975
Filing dateJul 11, 1973
Priority dateJul 12, 1972
Also published asDE2334257A1
Publication numberUS 3891115 A, US 3891115A, US-A-3891115, US3891115 A, US3891115A
InventorsOno Taiichi
Original AssigneeOno Taiichi
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Waste paper container
US 3891115 A
Abstract
A container with an automatically opening door comprises a case or body made of sheet material, a top part thereof having a valley-shaped, recessed portion, a photo-electric on device arranged on both ends of the recess and a door or shutter which can be open by interruption of the light of the photo-electronic device.
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Description  (OCR text may contain errors)

United States Patent 1191 1111 3,891,115 Ono June 24, 1975 [54] WASTE PAPER CONTAINER 2,620,805 12/1952 Page et a1. 220/205 [76] lnvenm Bkwallmadon 2,909,718 10/1959 19/25 NishiJw, y h Japan 3,289,350 Moody 49/362 X Filed: July 11, 1973 Appl. No.: 378,058

Foreign Application Priority Data July 12, 1972 Japan 47 82300 July 12, 1972 Japan 47-82301 July 14, 1972 Japan 47-70932 References Cited UNITED STATES PATENTS 4/1952 Gatesy 49/25 X Primary Examiner-John W. Huckert Assistant Examiner-Stuart S. Levy Attorney, Agent, or Firm-Browdy and Neimark 5 7 ABSTRACT A container with an automatically opening door comprises a case or body made of sheet material, a top part thereof having a valley-shaped, recessed portion, a photo-electric on device arranged on both ends of the recess and a door or shutter which can be open by interruption of the light of the photo-electronic devlce.

3 Claims, 9 Drawing Figures WASTE PAPER CONTAINER BACKGROUND OF THE INVENTION This invention relates to containers, and more particularly to containers having a door or shutter to automatically open and close. More specifically it relates to a waste paper container whose shutter or door is mounted at the top thereof and can be opened by interrupting light ofa photo-electronic device due to crumpled waste paper thrown into the recess.

DESCRIPTION OF THE PRIOR ART Waste paper containers, for example, a container into which waste paper, used to wipe washed hands, is thrown away, are widely used in toilet rooms etc. Various types have been used, for example, simple openhead containers or containers with a cover which is swingable around a horizontal axis passing through the center of gravity thereof. Much crumpled waste paper, however, is frequently seen to be scattered around such containers, in spite of being fitted with a cover, even the swingable cover. Such a scene is so unattractive and is also so unsanitary that a waste paper box having a cover or a shutter which can open and close automatically with a relatively simple and inexpensive device has now been developed.

It is understood that the present invention is not restricted to waste paper containers, such as the embodiments disclosed but can involve any hereinafter container as far as it falls within the scope of the generic concept.

SUMMARY OF THE INVENTION It is a primary object of the invention to provide a novel waste paper container comprising a shutter or door which can automatically open when waste paper is thrown thereupon and can automatically close, when the waste paper drops.

Another object of the invention is to provide on the top of the container a valley-shaped, recessed portion which is constructed substantially by a pair of slants or inclined surfaces and is convenient to accept thrown waste paper as well as to pass for a for photo-electronic device along the bottom of the valley.

A further object of the invention is to provide a novel waste paper container having a shutter or door along one of the slants which can open automatically by interruption of the light of a photo-electronic device, which comprises a set of a projector and a receiver thereof arranged on both sides of the recessed part.

BRIEF DESCRIPTION OF THE DRAWINGS Further objects, features and advantages of the invention will become more clear from the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a side view of a waste paper container, an embodiment of the invention.

FIG. 2 is a plan view of an embodiment shown in FIG. 1.

FIG. 3 is a cross sectional view taken along line III- -III of FIG. 4.

FIG. 4 is a plan view of FIG. 3, partially in section.

FIG. 5 is an enlarged view of a part of FIG. 3.

FIG. 6 is an electrical diagram of the ciruit used for the photoelectronic device of the present invention.

FIG. 7 is a diagrammatic flow chart which illustrates a curve to show current to time relation when a curve of light to time for the corresponding time is given.

FIG. 8 is a cross sectional view corresponding to FIG. 3 of another embodiment.

FIG. 9 is a cross sectional view corresponding to FIG. 3 of a further different embodiment.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to FIGS. 1 4 there is shown a waste paper container, an embodiment of this invention. Reference numeral 1 denotes generally a container body or case which is substantially made of metal sheet or plastic sheet, comprising side walls la, a back wall lb and a front door 2 to be opened arround a hinge 2b by pulling a handle 2a.

Reference numeral 3 denotes a space where crumpled waste paper is collected, above the space 3 is formed a valley-shaped recessed portion defined by a pair of slants 4, 5 oppositely inclined each other, another pair of side walls 14, 14 slightly inclined to the vertical and a shutter or door 6 which is normally closed by its own weight but slidingly opened by a motor 7. The shutter 6, similarly curved as the slant 4, has a rack 6a thereunder which is engaged with a gear 8 driven by the reduction-geared, electric motor 7, whose out-put shaft is connected by a key (not shown) mounted on the boss 8b of the gear 8. The gear 8 has a gear-less or recessed part 8a so that when the gearless part 8a comes to be confronted with the rack 6a during the rotation of the gear 8, the part 8a can not engage the rack 6a, and therefore the shutter 6 will slide down to the closed position by its own weight.

Reference numeral 9 denotes a pendulum-type blind or screen for the purpose of blinding light of a photoelectronic device which comprises a projector 12 and a receiver 13. The blind 9 is fitted with a weight 10 carried by a lever fixed thereon and supported like a pendulum by a pivot 11 fixed to the side wall 1a. The blind 9 incorporates a plate part 9a and, a flange 9b of which keeps in contact normally with a flanged part 612 the shutter, therefore when the shutter 6 moves to open, the blind 9 follows the shutter 6 to pivot clockwise about pivot 11 as shown in FIG. 3 and comes near to its vertical position where the blind 9 shuts-off or blinds the light from the projector 12.

Reference numeral 15 denotes a hole through which light 17 delivered from the projector 12 goes to the receiver 13 along the valley X X formed between slant wall 5 and shutter 6. Referring to FIG. 6 the numeral 16 denotes a relay box which incorporates in-put terminals of, for example, V, 50/60Hz, out-put terminals for the motor 7, a rectifier, an amplifier and relays. To get rid of disturbance due to other foreign light, it is desirable that the receiver 13 be energized only when the light modulated to a special frequency is delivered from the projector 12. Referring to FIG. 7 the relay is functioned in such a manner as that when the light is received (a) by the receiver 13 there is no out-put (d) and when the light 17 is shut-off (b) there is the out-put (c) regardless of time duration t t as illustrated in the figure.

The operation of this embodiment is disclosed hereinafter. When a block of crumpled waste paper A is thrown onto the top of the container 1, the block A comes down to the bottom of the valley X X where the block A will shut-off the light 17 from the projector 12 passing through the hole 15, running parallel to the valley X X or the cross line of the two slants 4 and 5, to the receiver 13. Then the motor 7 is energized by the relay (not shown) in the relay box 16 to rotate the gear 8 slowly, which pushes the door 6 upward by meshing in the rack 6a attached to the back thereof along the back side of the slant 4, and the door 6 opens enough to drop the block A into the container as illustrated as a block B and such blocks C accumulate in the body 1.

According to the opening motion of the door 6, the blind 9 follows the same distance, as the flange 6b of the door 6 keeps in contact with the flange 9b thereof and comes to shut-off the light 17.

When the door 6 opens enough to pass the block A, the light 17 is no longer shut-off by the block A and the motor would be expected to stop, but the blind 9 has already shut-off or blinded the light as mentioned above, and the motor 7 continues rotating. At last the gear-less part 8a comes to be confronted with the rack 6a, then the gear 8 can not drive the rack 6a anymore and the door 6 goes down to the initial position and pushes back the pendulum-type blind 9 to the initial position as shown in FIG. 3 to clear the passage of the light 17.

The function of the blind 9 is to shut-off the light before the falling block A ceases shutting the light 17. This accomplishes the same function as the well-known self-holding function on electric circuits. The novel combination of the pendulum-typed blind 9, a selfclosing door 6 contacting with the blind, a disengageable driving means saves electric relays and moreover maintenance labor and cost.

A gear having a gear-less, recessed part thereon is disclosed as a means to drop the door by itself, but it will be understood that any other means which can disengage the driving means from the door can be utilized for the same purpose. But the gear having a gear-less part is very convenient because the next time another paper block A is thrown to shut-off the light the motor 7 starts rotating which immediately makes the gear again come to engage with the rack 6a automatically.

After a certain amount of waste paper C has been accumulated the front door 2 is opened to take out the accumulated waste paper blocks.

Another embodiment is shown in FIG. 8 where a hinged door 6 is provided to be open by a magnetic pull means comprising a solenoid 18 when the light of a photo-electronic device is shut-off.

A further embodiment is shown in FIG. 9 where a slidable door 6" is provided to be open by a magnetic pull means comprising a solenoid 18', when the light of a photo-electronic device is shut-off.

What is claimed is:

1. A waste material container comprising:

a body made of sheet material having a top portion and a hollow inner portion wherein crumpled waste material can be collected;

a valley shaped recessed portion defined by a pair of oppositely disposed slants in said top portion and a pair of oppositely disposed substantially vertical walls disposed adjacent said slants, said slants and said walls further defining a lower extremity of said recessed portion;

a photo electric element disposed in substantially said lower extremity of said recessed portion and including a light projector and a photo-electric receiver, said projector continuously projecting a beam of light at said receiver;

a door disposed in one of said slants, said door being normally closed;

a door operating means to open said door upon interruption of said beam of light by said waste material and to close the door after said waste material has entered said hollow inner portion; and

said door operating means including:

a blind, pivotally mounted on one of said substantially vertical walls, said blind being pivoted in conjunction with the opening of said door thereby interrupting said beam of light when said door opens, but before said waste material enters said hollow inner portion,

a driving means for opening said door in response to the interruption of said beam of light, said driving means being operative to open said door a predetermined amount as long as said beam of light is interrupted, and

releasing means releasing said door after said door is opened said predetermined amount thereby allowing said door to close under the weight thereof.

2. A waste material container as recited in claim 1 wherein said blind is a weighted pendulum.

3. A waste material container as recited in claim 2 wherein said driving means comprises:

a gear rack affixed to said door; a gear having at least one portion thereof which contains no gear teeth, said gear being associated with said gear rack; and

motor means for rotating said gear.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2591693 *Nov 20, 1948Apr 8, 1952John J GatesyAutomatic door opener
US2620805 *May 23, 1950Dec 9, 1952Grady Page WoodfinCigarette extinguisher
US2895728 *Jan 30, 1953Jul 21, 1959Abraham EdelmanDoor operating mechanism
US2909718 *Aug 26, 1955Oct 20, 1959Julius J LawickDoor operating apparatus
US3289350 *Jul 7, 1964Dec 6, 1966Warren E MoodyGarage door operators
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4609122 *Nov 1, 1985Sep 2, 1986Ziegenbein Keith JAutomatic touch actuated door opener
US4729490 *Aug 28, 1986Mar 8, 1988Ziegenbein Keith JAutomatic touch actuated door opener
US4981275 *Apr 2, 1990Jan 1, 1991Sheu Miin ShiouPhotoelectric garbage bin
US5329212 *Mar 8, 1993Jul 12, 1994Feigleson Michael JWaste receptacle door opener
US5770935 *Jul 16, 1996Jun 23, 1998Product Innovations & Sales Co, LcDoor opening system and receptacle
US5903120 *Mar 5, 1996May 11, 1999Samsung Electronics Co., Ltd.Clothes washing machine having a two-piece door pulled open and closed by a motor-driven wire arrangement
US6390321 *Aug 10, 2000May 21, 2002Hwan Yih Enterprise Co., Ltd.Garbage can with a push-open cap connected with a pedal interactive device
US6859005 *Jun 18, 2003Feb 22, 2005Lynette S. BoliverGarbage container with automatic door operator
US6981606 *Apr 24, 2002Jan 3, 2006Simplehuman LlcTrash can assembly
US7086550Apr 19, 2004Aug 8, 2006Simplehuman LlcTrash can assembly with locking lid
US7121421Nov 19, 2003Oct 17, 2006Simplehumer, LlcTrash can assembly
US7374060Jun 27, 2003May 20, 2008Simplehuman LlcTrash can assembly
US7484635Apr 20, 2005Feb 3, 2009Simplehuman LlcPedal assembly for trash can
US7494021Mar 22, 2005Feb 24, 2009Simplehuman, LlcTrash can assembly with motion damper for lid
US7540396Aug 10, 2005Jun 2, 2009Simplehuman LlcTrash can assembly
US7741801 *Jun 22, 2010Jamco CorporationAutomatic opening/closing trash bin lid for lavatory unit of aircraft
US7748556Jul 6, 2010Simplehuman, LlcTrash can with lid
US7806285Oct 6, 2006Oct 5, 2010Simplehuman LlcTrash can assembly
US7922024Jun 27, 2006Apr 12, 2011Simplehuman, LlcReceptacle with motion damper for lid
US7950543May 31, 2011Simplehuman, LlcTrash can assembly with locking lid
US8136688May 22, 2009Mar 20, 2012Test Rite Products Corp.Trash can assembly
US8418869Mar 6, 2009Apr 16, 2013Simplehuman, LlcReceptacle with motion dampers for lid and air filtration device
US8567630Mar 13, 2013Oct 29, 2013Simplehuman, LlcReceptacle with motion dampers for lid and air filtration device
US8569980Feb 1, 2008Oct 29, 2013Simplehuman, LlcTrash can with power operated lid
US8686676Mar 4, 2011Apr 1, 2014Simplehuman, LlcTrash can with power operated lid
US8716969Mar 4, 2011May 6, 2014Simplehuman, LlcTrash can with power operated lid
US8720728Mar 10, 2008May 13, 2014Simplehuman, LlcTrash can
US8766582Mar 4, 2011Jul 1, 2014Simplehuman, LlcTrash can with power operated lid
US8813986 *Sep 6, 2007Aug 26, 2014Covidien LpTouchless auto-drop sharps container
US8872459Mar 9, 2012Oct 28, 2014Simplehuman, LlcTrash cans with variable gearing assemblies
US9051093Mar 1, 2013Jun 9, 2015Simplehuman, LlcReceptacle with motion damper near lid
US20030201267 *Apr 24, 2002Oct 30, 2003Frank YangTrash can assembly
US20040189005 *Mar 24, 2004Sep 30, 2004Nitto Kohki Co., Ltd.Pipe coupler
US20040257020 *Jun 18, 2003Dec 23, 2004Boliver Lynette S.Garbage container with automatic door operator
US20050258794 *Dec 14, 2004Nov 24, 2005Jamco CorporationAutomatic opening/closing trash bin lid for lavatory unit of aircraft
US20050284870 *Aug 10, 2005Dec 29, 2005SimplehumanTrash can assembly
US20060186121 *Feb 18, 2005Aug 24, 2006Frank YangTrash can assembly with motion damper for lid
US20060213910 *Mar 22, 2005Sep 28, 2006Frank YangTrash can assembly with motion damper for lid
US20060226149 *Jun 7, 2006Oct 12, 2006Simplehuman Llc.Trash can assembly
US20060237458 *Apr 20, 2005Oct 26, 2006Frank YangPedal assembly for trash can
US20060261071 *May 20, 2005Nov 23, 2006Frank YangTrash can assembly with locking lid
US20060283862 *Jul 17, 2006Dec 21, 2006Simplehuman LlcTrash can assembly
US20070012699 *Jun 27, 2006Jan 18, 2007Frank YangReceptacle with motion damper for lid
US20070029323 *Oct 6, 2006Feb 8, 2007Simplehuman LlcTrash can assembly
US20080116207 *Nov 20, 2006May 22, 2008Frank YangTrash can assembly with bag trim
US20100294769 *May 22, 2009Nov 25, 2010Test Rite Products CorporationTrash can assembly
US20110073598 *Sep 6, 2007Mar 31, 2011Tyco Healthcare Group LpTouchless auto-drop sharps container
USD657108Mar 4, 2011Apr 3, 2012Simplehuman, LlcTrash can
USD672520Dec 11, 2012Simplehuman, LlcTrash can
USD675802Feb 5, 2013Simplehuman, LlcTrash can
USD675803Feb 5, 2013Simplehuman, LlcTrash can
USD714510Mar 1, 2013Sep 30, 2014Simplehuman, LlcBag securing member
USD725861Mar 13, 2014Mar 31, 2015Simplehuman, LlcTrash can
USD730008Mar 12, 2014May 19, 2015Simplehuman, LlcTrash can
DE9105423U1 *May 2, 1991Aug 8, 1991Rheinwerk, Meisenburg & Ahleff Gmbh, 4000 Duesseldorf, DeTitle not available
EP0903305A1 *Sep 11, 1998Mar 24, 1999David Kennedy (Engineers) Holdings LimitedBin with electrically actuated opening flap
WO1998016446A1 *Oct 11, 1996Apr 23, 1998Cws International AgContainer for polluted and/or contaminated materials
WO2009031996A2 *Sep 6, 2007Mar 12, 2009Tyco Healthcare Group LpTouchless auto-drop sharps container
WO2009031996A3 *Sep 6, 2007Jan 9, 2014Tyco Healthcare Group LpTouchless auto-drop sharps container
Classifications
U.S. Classification220/260, 250/215, 220/263, 49/25
International ClassificationB65F1/16, B65F1/10
Cooperative ClassificationB65F1/10, B65F1/1638
European ClassificationB65F1/16D2, B65F1/10