This invention is directed to a hose reel for flexible hoses. More specifically, the present invention relates to an electrically powered, motor driven hose reel with manual override that is mounted within a protective safety enclosure.
Garden hoses are a necessity for lawn and garden care, as well as general all-around home care. Typically, hoses are found either wound and left on the ground near a water spigot, or wound on one of many known hose reel-type storage devices. During the off-season, hoses are often found on the floor of a garage or other storage area.
The prior art has proposed a number of different structures for rewinding and storing a hose when it is not in use. These devices generally include stationary hose reel hangers that can be mounted to a surface of a building, such as an outer wall of a house or portable hose reel carts that permit ready transport of the hose from one location to another.
In the past, it was common to retrieve hoses and the like by manually winding them around a suitable structure such as a wall mounted hanger or simply bundling them into loose coils. Surface (or wall) mounted hose reels or hangers come in a wide variety of configurations. For example, one surface mounted hose hanger includes a simple, semi-circular metal or plastic support that is mounted to the building, over which the hose is looped or hung. Another surface mounted device or reel includes a rotatable fitting that is mounted to the building surface to which a manually rotated reel is mounted. Unfortunately, when hose is pulled out from such manually wound devices, it often becomes snarled or tangled and requires appreciable time and effort to correct the situation. Additionally, these surface mounted reels and hangers are often considered unsightly, particularly if they are mounted to the front of the building and are not covered or otherwise obscured by plants or foliage.
Portable hose reel carts permit ready transport of the hose from one location to another. Portable hose reel carts typically include an open, manually rotatable reel or spool positioned between a pair of side frames with wheels. The hose is manually wound upon the reel for storage and pulled or dispensed from the reel for use.
Although such carts have become wide-spread in use because of their portable storage capabilities, they do have drawbacks. First, these devices require manual winding of the hose. Rewinding long hoses requires a considerable effort. Due to the low positional location of the winding mechanism on these devices, many users may be physically unable to complete the rewinding. Additionally, a hose stored on such a reel is exposed to the elements. Often hoses are made of rubber or like materials that can become stiff or brittle and can break when subjected to ultra-violet radiation or low temperature extremes, particularly with advanced age.
Portable hose reel carts may also be considered by some to be unsightly. Given that most hose reel carts are designed for use in and around garden and lawn areas, it is expected and natural for these carts to become dirty. As such, some users may be inclined to constantly remove a hose reel cart, particularly from the front of a house. When, for example, the cart becomes dirty, muddy or discolored.
In an effort to solve some of these problems, a number of hose retrieval devices have been developed which automatically retrieve and rewind hose on a reel in such a manner so as to avoid tangling the next time the hose is deployed or paid out. Such devices generally include a reel and a level wind mechanism for guiding the hose onto the reel. The level wind mechanism includes a traversing screw, a guide rod, and a follower. The reel is generally directly driven by a motor and/or an intermeshing clutch assembly. Unfortunately, the electric motors of the prior art devices have voltage requirements that reduce portability and increase the risk of electrical shock. Additionally, the clutch mechanisms utilized on these devices are either completely engaged or completely disengaged and lack an infinitely adjustable torque transfer assembly to allow operator controlled speed and/or force of hose retrieval.
Unfortunately, many of these motorized devices also lack a suitably safe enclosure to protect the operator and/or small children from being accidentally caught in the device. For example, none of the motorized hose reels known are equipped with safety interlocks to prevent the motor from being engaged if an enclosure cover is opened. To compound the problem, many of these devices do not provide for an emergency stop and require the entire hose to be retracted before the device can be stopped. Retracting the entire hose may take several seconds and exacerbates emergency situations such as when a person or pet has been caught in the machine or in the hose as it is retracted. In addition, none of the devices known provide a disengaging hose winding guide. The level winds of the prior art are capable of causing severe damage to an operator, child or pet that may accidentally get caught in the rewinding device.
Accordingly, there exists a need for a rechargeable battery operated motorized hose reel storage device that permits safe motorized take-up and manual dispensing of a hose that is also aesthetically pleasing. Such a hose reel storage device that can be safely used to retract and “hide-away” the hoses stored therein when not in use, and desirably provides a protective, outwardly aesthetically pleasing appearance.
A number of reel assemblies utilizing electric motors to drive a reel for retracting an elongate member such as a cord or hose have been disclosed. Examples are disclosed as follows:
U.S. Pat. No. 4,832,074 discloses an automatic hose rewinding device having an alternating current (AC) motor driven reel. The desired amount of hose is pulled out of the enclosure manually for use. After use a button is pushed once and the hose is completely retracted until a device on the end of the hose strikes a bar to disengage the AC motor. The design of the device does not allow small increments of the hose to be retracted. If the operator wishes to use a smaller amount of hose, the entire hose must be retracted and the desired amount of hose must be manually pulled out again. Additionally, the use of alternating current reduces portability of the device and increases the risk of electrical shock.
U.S. Pat. No. 4,513,772 discloses an automatic hose winding apparatus having an intermeshing, non-slipping clutch. The desired amount of hose is pulled out of the enclosure manually for use. For retraction, the operator must manually lock the intermeshing clutch mechanism in place. When the hose is completely retracted a device on the end of the hose strikes a lever to disengage the intermeshing clutch. The design of the device allows increments of the hose to be retracted, however, the operator must manually disengage the clutch before any amount of hose can be manually payed out. The apparatus makes no disclosure or suggestion of a protective enclosure or a disengaging hose guide.
U.S. Pat. No. 5,495,995 discloses a motor driven hose reel assembly. The device interconnects two sensors and a motor to monitor the quantity of hose manually pulled from the reel. By pulling on the hose manually, the hose is rewound in an amount less than that necessary to completely rewind the hose. Because the device is operated in a retraction direction when the hose is pulled, the design requires the operator to overcome the pulling force of the device to extend hose from the machine.
U.S. Pat. No. 4,012,002 discloses a coupling mechanism for use in conjunction with a hose reel to automatically and selectively engage or disengage the reel and motorized drive train. The coupling utilizes a sliding spring pin on the drive train which is designed to automatically engage one of a series of cooperating stop lugs on the reel to transmit the driving power of the motor to the rotatable reel. The spring pin can be manually locked in a disengaged position to allow the hose reel to freewheel. When the spring pin is engaged the device operates in direct drive from the motor.
U.S. Pat. No. 6,149,096 discloses a retractable reel device especially useful for electrical cables. The device is specifically designed to allow an operator to pull out a desired amount of cable. Once the cable is paid out, the device maintains a predetermined amount of tension on the cable. Thereafter, any slack in the cable is automatically retracted by an AC motor.
The prior art devices fail to teach or suggest the use of an infinitely adjustable torque transfer method for modulating hose retrieval. The references are further deficient in teaching the use of a rechargeable battery in combination with a direct current (DC) motor for powering the hose retrieval device. Moreover, the references are deficient in teaching an enclosure with safety interlocks that prevent the motor from being engaged when a cover is in an open position. The devices are further deficient in teaching a safety hose guide assembly that is capable of disengagement in the event that the path of the device is inadvertently blocked. The prior art devices are still yet deficient in teaching a motorized hose with manual override, allowing the hose to be retracted manually as well as by motor.
The instant invention relates to a direct current powered hose rewinding reel for use with an associated flexible hose. The apparatus includes a motorized rotatable reel carried and contained within an enclosure. The rotatable reel includes a hub and a pair of flanges at opposing ends of the hub, and is configured for storage, motorized take-up, and manual pay-out of the flexible hose. Power for the motorized reel is supplied through a control assembly that includes a rechargeable battery, a main power switch, and at least one safety interlock. The safety interlock(s) are incorporated into the enclosure and prevent motorized operation of the reel when the enclosure is opened.
The enclosure has left and right side wall panels, front and rear wall panels extending between the left and right wall panels, and a cover. The enclosure is configured for receiving a rotatable reel for storing a length of flexible hose within the enclosure.
The cover pivots about a pair of hinges that mount the cover to the enclosure for movement between a closed position and an open position. Each hinge includes a pocket formed in a respective side wall panel and a pin associated and cooperative with each pocket. The cover can be formed having a depending lip, and the pins can extend from the lip. Preferably, the pins are formed as fluted cylindrical elements extending from the lip, axially aligned to one another to facilitate rotational movement.
When the cover is rotated into the open position, a safety interlock switch assembly prevents motorized operation of the hose reel. When the cover is rotated into the closed position, an engagement pin extending from the underside of the cover cooperates with the safety interlock switch to allow motorized operation of the hose reel.
To facilitate take-up and pay-out of the hose with the cover closed, the front wall panel includes a cut-out portion extending downward from the top edge thereof adjacent to the junction with the cover. In this arrangement, when the cover is closed, the cut-out accommodates traversing a portion of the flexible hose therethrough.
In one embodiment a reciprocating hose guide assembly is linked to the hose reel. When the hose reel is rotated, the reciprocating hose guide will move back and forth across the reel to uniformly and smoothly wrap the hose on the reel to provide a compact storage configuration.
In a further embodiment, the reciprocating hose guide can be released from its double-helix lead-screw in the event that its path becomes blocked, such as by debris or when a hand or arm is mistakenly placed in the opening. Alternatively, the hose guide may be manually disengaged to facilitate easy hose pay-out and can thereafter be repositioned before being manually re-engaged.
A sliding seal fluid inlet joint permits the hose outlet joint to rotate with the hose reel without disconnecting the hose. This arrangement permits rotating the spool without twisting or torquing internal components, while maintaining sealed fluid communication between the water supply and the hose.
For motorized operation the hose reel is provided with a winding means capable of rotational movement of the reel in relation to the enclosure and an electrically energized power assist means for selective and operative engagement of the winding means. The winding means and power assist means are illustrated by a DC powered motor mounted to the enclosure and connected to a gear-train via an infinitely adjustable torque transfer assembly. The torque transfer assembly utilizes a belt and pulleys to transfer torque from the motor to the gear train via a foot pedal operated cantilever which forces an idler pulley against the belt to selectively couple and decouple the DC motor to and from the reel to modulate the pulling force and rotational speed of the hose reel. When the foot pedal is depressed the main power switch of the control assembly allows current from the battery to start the DC motor and forces the idler pulley to tension the belt to provide the desired speed and/or force required for hose retrieval. Release of the pedal stops the motor and allows hose to be freely pulled from the reel as desired.
Because motors often operate at relatively high RPM the DC motor may include a gear-train coupled between the DC motor and the infinitely adjustable torque transfer assembly. The gear-train is capable of reducing RPM output and increasing motor torque.
Power for the control assembly is provided by a removable, replaceable, and rechargeable battery assembly conveniently stored within its own closed compartment in the enclosure. Connection to the battery is made via a unique clip-on connector that also provides an integrated battery charging jack. The clip-on connector is constructed and arranged to prevent the clip from being incorrectly connected to the battery and the assembly requires directional installation into the enclosure for electrical connection to the control assembly. The integrated charging jack in the clip-on connector allows convenient battery recharging without disconnecting the clip from the battery. In this manner the battery can be safely and easily removed, recharged, and/or reinstalled into the enclosure without danger of incorrect connection.
Therefore, it is an objective of the present invention to provide a motorized hose reel apparatus wherein the speed and/or force of hose retrieval is modulated by virtue of an infinitely adjustable torque transfer assembly.
It is a further objective of the present invention to provide a motorized hose reel apparatus that is constructed to utilize a DC power source.
It is still a further objective of the present invention to provide a motorized hose reel apparatus having a removable and rechargeable power source.
Yet another objective of the present invention is to provide a battery operated rechargeable motorized hose reel apparatus capable of protecting the hose during storage from direct contact with the elements.
Still another objective of the present invention is to provide a motorized hose reel apparatus that is aesthetically appealing to consumers.
Still yet another objective of the present invention is to provide a motorized hose reel enclosure that includes safety interlocks to prevent motorized operation when the enclosure is opened.
Still yet another objective of the present invention is to provide a unique clip-on battery connector.
Still yet another objective of the present invention is to provide a hose winding guide assembly that includes automatic as well as manual disengagement features.
Other objectives and advantages of this invention will become apparent from the following description taken in conjunction with the accompanying drawings wherein are set forth, by way of illustration and example, certain embodiments of this invention. The drawings constitute a part of this specification and include exemplary embodiments of the present invention and illustrate various objects and features thereof.
It is to be understood that while a certain form of the invention is illustrated, it is not to be limited to the specific form or arrangement of parts herein described and shown. It will be apparent to those skilled in the art that various changes may be made without departing from the scope of the invention and the invention is not to be considered limited to what is shown in the drawings and described in the specification.
Referring now to
The enclosure 14 includes front wall panel 30 and rear wall panel 34, left side wall panel 32, right side wall panel 36, and a pivoting top or cover 38. Optionally, the enclosure 14 can include a bottom panel (not shown) for substantially fully enclosing the reel 12 and protecting the reel 12 and hose H from the elements. The optional bottom panel is preferably constructed as a reversible member with a enhanced friction engaging first surface and a relatively smooth second surface. In this manner the bottom panel could be inserted to prevent the apparatus from skidding on hard surfaces where staking is not practical. In addition, the bottom surfaces of the left side wall panel 32 and right side wall panel 36 may be constructed with optional rubber pads 33 to further engage hard surfaces. As will be apparent from the drawings, the front, rear and side panels 30-36, and the cover 38 enclose the reel 12 such that the reel is substantially not visible from outside of the enclosure 14 when the cover 38 is closed.
In a first embodiment the front panel 30 of enclosure 14 includes a cut-out portion 52 extending downwardly from the top lip thereof. The cut-out portion 52 can be elongated and is suitably sized to accommodate a standard size garden hose H so that the hose can be paid-out from or taken-up onto the spool 12 without lifting the cover 38. That is, the hose H can freely move through the cut-out opening 52 without opening the cover 38.
In a most preferred embodiment the front panel 30 of enclosure 14 includes an elongated cut-out portion 52 extending downwardly from a top lip thereof. The cut-out portion 52 is sized to accommodate a reciprocating hose guide assembly 50 so that the hose can be uniformly and smoothly wrapped on the reel 12 to provide a compact storage configuration or easily paid-out from the spool 12 without lifting the cover 38.
The enclosure 14 includes a drawer 44 that extends between the right and left side panels 36, 32, parallel to the front panel 30. The drawer 44 is illustrated as opening in a pivotal fashion but may also be configured to slide open for accommodating storage of hose attachments and the like.
The enclosure 14 includes a foot pedal housing 40 extending inwardly into the right side panel 36 for housing the foot pedal 42. The foot pedal housing 40 is used to protect the foot pedal from inadvertently being operated. The foot pedal housing 40 can be provided in a variety of configurations suitable for protecting the pedal 42 from inadvertent operation, which configurations will be recognized by those skilled in the art. A manual override winding crank 24 is external of the enclosure 14 and extends through a side wall for connection to the spool 12, preferably on an end opposite to that of the in-tube 20 (FIG. 3), to facilitate manual take-up of the hose H. The crank 24 includes a folding handle 25 capable of folding into a recess 26 formed in the crank 24. The handle releasable lock 28 in the crank 24 cooperates with detents in the handle 25 to permit the handle 25 to be locked into either a position parallel to the crank or a position perpendicular to the crank. Locking the handle 25 in the perpendicular position permits the hose reel to rotate without the danger of the rotating handle hitting or snagging objects or persons within its path and also permits a compact enclosure.
Now referring to
Also visible is the reciprocating hose guide assembly 50. The reciprocating hose guide assembly contains a double helix lead-screw 54, guide rod 56, and carriage 58. The reciprocating hose guide assembly 50 is linked via gear-train 96 (
Referring to
Those skilled in the art will recognize that the hose reel 12 includes a water inlet port or in-tube 20 and an outlet port or out-tube 22. The in-tube 20 is mounted to the enclosure 14 at about the axis of rotation of the reel 12. The in-tube 20 is connected to the out-tube 22 by a sliding seal arrangement 23 which will be recognized by those skilled in the art. This arrangement permits the in-tube 20 to remain fixed to the enclosure 14, while the out-tube 22 rotates with the reel 12. In this configuration, the in-tube 20 and out-tube 22 remain in fluid communication with one another. This arrangement permits rotating the reel 12 without twisting or torquing internal components, while maintaining sealed fluid communication between the water supply and the hose H.
The adjustable torque transfer assembly 68 is visible with the structural transfer cover 46 removed. The transfer cover 46 cooperates with the right side panel 36 to provide support to the adjustable torque transfer assembly.
Referring to
Advantageously, this configuration permits ready assembly of the enclosure 14 with a minimum number of tools, and involves a minimum number of parts.
The cover or top panel 38 is fitted to the panels 30-36 using a hinge arrangement indicated generally at 80 (
Referring to
As illustrated in
Referring to
When the pedal is depressed the motor rotates the reel through the action of the torque transfer assembly 68 and the reel gear-train. That is, the motor 98 rotates the first pulley 106, the torque assembly operatively engages and rotates driven pulley 108 through the belt 102, the driven pulley 108 is coupled or formed integral with the drive gear, the drive gear rotates the idler gear 116, that rotates the hose reel gear 118 to complete the reel gear-train. The hose winding guide lead-screw 54 is caused to rotate through the action of gears 118, 120, and 122. That is, when reel 12 is rotated by motor 98 or by handle 25, the reel 12 and reel gear 118 rotates, which causes the idler gear 120 to rotate, which causes lead screw 54 to also rotate.
Referring to
Referring to
The battery compartment 60 is provided with a hinged door 48 having a latch arrangement for releasably engaging side panel 36. Formed integrally to the inside of the battery cover door is a vertical battery hold down 136. When the door 48 is latched in the closed position the battery compartment electrical contacts 138, 140 and the battery assembly electrical contacts 144, 146 (
Referring to
Referring to
All patents and publications mentioned in this specification are indicative of the levels of those skilled in the art to which the invention pertains. All patents and publications are herein incorporated by reference to the same extent as if each individual publication was specifically and individually indicated to be incorporated by reference.
It is to be understood that while a certain form of the invention is illustrated, it is not to be limited to the specific form or arrangement herein described and shown. It will be apparent to those skilled in the art that various changes may be made without departing from the scope of the invention and the invention is not to be considered limited to what is shown and described in the specification.
One skilled in the art will readily appreciate that the present invention is well adapted to carry out the objectives and obtain the ends and advantages mentioned, as well as those inherent therein. The embodiments, methods, procedures and techniques described herein are presently representative of the preferred embodiments, are intended to be exemplary and are not intended as limitations on the scope. Changes therein and other uses will occur to those skilled in the art which are encompassed within the spirit of the invention and are defined by the scope of the appended claims. Although the invention has been described in connection with specific preferred embodiments, it should be understood that the invention as claimed should not be unduly limited to such specific embodiments. Indeed, various modifications of the described modes for carrying out the invention which are obvious to those skilled in the art are intended to be within the scope of the following claims.
This application is a continuation-in-part of applicant's U.S. application Ser. No. 29/154,133 filed Jan. 18, 2002 now abandoned, the contents of which are hereby incorporated by reference.
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Number | Date | Country | |
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20030213865 A1 | Nov 2003 | US |
Number | Date | Country | |
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Parent | 29154133 | Jan 2002 | US |
Child | 10346908 | US |