This invention relates to a foot-operated apparatus that allows a person to open a door without having to grasp the knob or handle or the door. More particularly, the invention relates to a foot-operated door opener especially suited for use in restrooms and other public facilities.
A doorknob or door handle tends to collect all sorts of germs, which may be transmitted to persons who subsequently open the door. This problem is particularly acute in connection with knobs and handles employed by doors in public restrooms and other facilities used by the public. Once the knob or handle is contaminated, each person thereafter opening or closing the door encounters the risk of being infected and contracting a cold, flu or other disease. Contamination is best avoided by careful hand washing; however, many people using public facilities exhibit less than exemplary hygiene and either inadequately wash their hands or fail to wash them altogether. As a result, unsanitary and contaminated door handles and doorknobs remain an ongoing and serious health concern.
It is therefore an object of the present invention to provide a foot-operated door opener, which allows a person to open a door without having to touch the knob or handle of the door and which thereby enables that person to avoid collecting germs on his or her hand from the knob or handle.
It is a further object of this invention to provide a foot-operated door opener that significantly reduces the spread of germs, viruses and bacteria between persons handling a contaminated doorknob or door handle.
It is a further object of this invention to provide a foot-operated door opener that improves public health by reducing the risk of colds and illness being spread in public facilities.
It is a further object of this invention to provide a foot-operated door opener that significantly improves sanitation and reduces the transmission of germs in public restrooms, dining establishments and other public buildings and facilities.
It is a further object of this invention to provide a foot-operated door opener featuring a relatively simple and inexpensive construction, which is convenient and effective to utilize on virtually all types of doors employing knobs and/or handles.
It is a further object of this invention to provide a foot-operated door opener that is aesthetically and hygienically appealing as well as extremely convenient for use by the public.
This invention features a foot-operated door opener including an elongate housing that is mounted to the knob or handle of a door to be opened. The housing includes upper and lower openings. An elongate actuator is mounted within the housing for moving longitudinally therein. The upper end of the actuator carries a gripping device that is engaged with the handle or knob of the door. The lower end of the actuator carries a foot pedal. The foot pedal is depressed by a user's foot such that the actuator is pulled downwardly through the housing and the gripping device turns the knob or handle to release the door's latch and open the door.
In a preferred embodiment, a hook is carried by the lower portion of the elongate housing and the hook is engaged with a lower edge of the door. As a result, when the foot pedal is depressed, the actuator pulls the gripping member such that the handle or knob is turned and the door is opened. The user may then draw the foot pedal rearwardly (or push it forwardly) such that the hook pivots the door about its hinges into an open condition.
The elongate housing may comprise a tube having open upper and lower ends. The tube or other housing may be mounted by a strap or bracket onto the shaft of the doorknob or door handle. The hook may be carried by a lower end of the tube door housing.
The gripping device may include a strap, which is attached to the handle or knob, and which is at least partly flexible. The actuator may include a relatively rigid shaft, bar or rod that is moveable longitudinally within the tube. The gripping strap may be attached to an upper end of the shaft or rod. Alternatively, the actuator may comprise an elongate cord, chain, wire or other flexible element that is interconnected between the foot pedal and the doorknob or door handle. In still other embodiments, the gripping device may include a clamp or bracket that is fastened releasably to the doorknob or shaft of the knob. The clamp may be secured operably to the actuator by various means. For example, when the actuator includes an elongate shaft or rod, as previously described, the clamp may include an extension portion that is interconnected to the rod or shaft by a chain, wire, cord or similar connecting element. In still other embodiments, the actuator may include a shaft having an offset upper extension arm that is pivotally connected to an extension piece of the clamp. As the shaft is moved longitudinally downwardly within the housing, the offset arm drives the clamp extension downwardly such that the clamp rotates the doorknob or door handle shaft into an opened condition. In such versions, the housing is typically wide enough that the shaft can move laterally within the housing as it moves longitudinally therein. When the pedal is released, the spring in the door handle rotates the handle to its initial position and, as a result, the clamp draws the actuator upwardly through the housing.
In alternative embodiments of this invention, the door opener may include an elongate body that carries a mounting plate at its upper end. The mounting plate is positioned behind the base of the doorknob or door handle or, alternatively, behind a push plate of the door. The mounting plate includes openings which enable the mounting plate to be secured to the door when the push plate or base of the knob or handle is secured to the door. The previously described elongate housing may be replaced by an elongate body that does not include the previously described actuator. Instead, a foot pedal may be secured directly to the lower end of the body. A lower bracket may be carried by the lower end of the body and engaged with the bottom of the door. The user may open the door by simply stepping on the foot pedal and pushing or pulling the door open as required. This version is particularly useful for doors which do not include knobs or handles that must be pivoted to open the door. In other words, it is particularly suited for use with unlatched doors.
Other objects, features and advantages will occur from the following description of preferred embodiments and the accompanying drawings, in which:
There is shown in
In each version of the invention, the opener includes an upper portion attached to the door handle, a lower portion secured to the bottom of the door and an intermediate portion attached to and extending between the upper and lower portions. In some embodiments, the upper and intermediate portions operate the handle through action of the user's foot. In other versions, a passive intermediate is provided between a foot pedal and the door handle.
Door opener 10 includes an elongate tubular housing component 20 having open upper and lower ends 22 and 24 respectively. Tubular housing 20 may be composed of various types of metals or plastics. The housing can have a cylindrical or rectangular configuration, although other non-cylindrical shapes may be utilized. The upper end of housing 20 carries a strap or bracket so that it hangs the housing from doorknob shaft 16.
An engagement component comprising a hook 48 is engaged with the lower edge of door 12. Hook 48 is attached to and extends downwardly from the lower end 24 of housing 20. The hook component is extendable beneath and engagable with the lower edge of the door as shown in
An elongate actuator 26 is mounted within tubular housing 20. In the version shown in
The lower end of actuator shaft 28 carries a foot pedal 40,
Door opener 10 is mounted on the inside of door 12 quickly and conveniently. Initially, hook component 48 is interengaged with the lower edge of door 12 in the manner shown in
After a person has finished using the restroom or otherwise desires to exit through door 12, he or she operates the mounted door opener to open door 12 in a hands-free manner. To accomplish this, the user simply steps upon and depresses pedal 40. This pulls shaft 28 and flexible component 30 longitudinally downwardly through tubular housing 20. The distal end 32 of flexible component 30 rotates the knob in a clockwise direction to release latch 18 and open door 12. The user continues to draw or pull his or her foot rearwardly so that housing 20 and attached hook 48 pull the door 12 pivotably open. The user may then exit the room without directly touching the knob with his or her hands. Germs are avoided and the risk of the user contracting an illness or disease are significantly reduced.
In the alternative version shown in
Still another version of the door opener is depicted in
The version of
In the version shown in
In operation, opener 10c is mounted on the inside of a door in the manner previously described. The user again steps on the foot pedal and depresses the actuator such that it is drawn longitudinally downwardly through housing 12c. As the elongate shaft 26c is pulled downwardly, it likewise pulls extension arm 29c in a downward direction. The extension arm causes clamp 33c to rotate the doorknob or handle shaft 16 in a clockwise direction. At the same time, the extension arm 29c, which is linked to extension 43c, is drawn laterally within housing 12c as indicated by arrow 70c. In the version shown in
In
In the version of
In the version shown in
A mounting plate 249, which is analogous to the mounting plate described in the embodiment of
Once again, a foot pedal 240 is attached to a lower end of the door opener. In particular, foot pedal 240 is welded or otherwise permanently fastened to the lower end of elongate body 220. The foot pedal extends outwardly from the body so that it is conveniently accessible to a user desiring to open the door. A mounting bracket 248 is likewise secured to the lower end of body 220 for engaging the bottom of door 212.
The version of
Some types of latch-free doors employ only a push plate without any type of handle. In these situations, door opener 210 may be secured beneath the push plate of the door. The mounting plate includes holes that align with the bolt accommodating holes in the push plate. The bolts that secure the push plate to the door also fasten the door opener between the door and the push plate.
In still another version depicted in
Tube 520 is attached to a lower end of plate 549 and extends downwardly from the plate and along a first side of door 512. The lower end of tube 520 is attached to a lower portion or bracket 548 that is itself secured to the bottom 549 of door 512. More particularly, bracket 548 includes a hook portion 551,
A foot pedal assembly 540 is retractably mounted to bracket 548. As shown in
With the door in a closed and latched condition, the handle 514 and attached clamp 553 hold chain 530 such that pedal assembly 540 is supported in a raised condition. To open the door, the user steps on step 561 of pedal assembly 540 and pushes the pedal assembly downwardly within the track 555 of bracket 548. This pulls chain 530 downwardly through tube 520. The chain turns clamp 553 and pinched door handle 514, as indicated by arrow 565. This causes the door to unlatch. The user then either pulls or pushes against the pedal assembly and lower bracket, as required, to open the door 512. As in the prior embodiments, the door is opened without the user touching the door handle with his or her hands. Contamination is thereby avoided.
An alternative door opener 712 is depicted in
In the versions shown in
It should be noted that various alternative features and elements may be employed within the scope of this invention. Assorted types of stirrups, pedals and other foot-engagable components may be carried at the lower end of the actuator. The actuator itself may comprise a single unitary element or multiple interconnected sections, such as the rigid shaft, flexible strap, and/or gripping distal end segment described herein. The actuator may include rigid components such as a rod, bar or shaft. Alternatively, it may feature exclusively flexible components such as chain, wire, strap, cord or cable. In still other versions both flexible and rigid elements may be used. Although a tube or housing is disclosed in a number of the drawings, in some versions, the housing may be eliminated.
The door opener may be mounted to either the inside or outside of a door. The foot pedal may be engaged with either a pushing or a pulling action, as required, to open the door.
The present invention achieves very significant advantages and constitutes a great sanitary and public health improvement over the conventional practice of having to directly touch a door handle or doorknob in a public restroom or other facility widely utilized by the general public. The device described herein allows a person to open the door and exit the room without ever having to touch the knob or handle with his or her hands. Germs and diseases are thereby avoided and the risk of the illness is significantly reduced. The door opener may be constructed of various alternative materials and be made in different sizes suitable for accommodating virtually all types and sizes of pivoting handle doors.
The door opener of this invention will be especially attractive for use in restroom facilities employing automated hand drying devices. When used in conjunction with such dryers, the door opener of this invention eliminates virtually any need for the user of the facilities to touch any part of the inside of the restroom after washing his or her hands. Appropriate signage may be mounted to the door such as “For Sanitation” or “Germ Free”, with an arrow pointing to the foot pedal. This will direct the users attention to the door opener so that it can be used consistently and effectively.
The mounting plate may be used in any of the embodiments to this invention. When it is used with the versions employed in conjunction with door knobs and pivoting door handles, the mounting plate does not interfere with operation of the handle or knob in any way. The handle and knob is allowed to turn freely so that the door is opened and the user can quickly and conveniently exit the room.
From the foregoing, it may be seen that the apparatus of this invention provides for a low cost, convenient to use and highly effective hands-free door opener. While this detailed description has set forth particularly preferred embodiments of the apparatus of this invention, numerous modifications and variations of the structure of this invention, all within the scope of the invention, will readily occur to those skilled in the art. Accordingly, it is understood that this description is illustrative only of the principals of the invention, and is not limitative thereof.
Although specific features of the invention are shown in some of the drawings and not others, this is for convenience only, as each feature may be combined with any and all of the other features and put to other uses in accordance with this invention.
Other embodiments will occur to those skilled in the art and are within the following claims:
This application claims the benefit of U.S. Provisional Patent Application Ser. No. 60/589,293 filed Jul. 20, 2004.
Number | Name | Date | Kind |
---|---|---|---|
283770 | Geiger | Aug 1883 | A |
584588 | Headland | Jun 1897 | A |
1084830 | Tate | Jan 1914 | A |
1172205 | Gillentine | Feb 1916 | A |
1603722 | Stanley | Oct 1926 | A |
2928690 | Larson | Mar 1960 | A |
4621848 | Pierce | Nov 1986 | A |
5193863 | McBain | Mar 1993 | A |
5217265 | Lerner et al. | Jun 1993 | A |
6176042 | Rossman et al. | Jan 2001 | B1 |
6360488 | Darling | Mar 2002 | B1 |
6499254 | Rossman et al. | Dec 2002 | B2 |
Number | Date | Country | |
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60589293 | Jul 2004 | US |