Patent Application
20100102177
Not Applicable.
Not Applicable.
The present invention relates to sprayer heads associated with plumbing fittings such as faucets. More particularly it relates to assemblies for more securely docking a sprayer head between uses.
It is very common to associate a sprayer with a faucet used adjacent a kitchen sink. Most often, the sprayer is mounted separately from the faucet along a back mounting ledge of the sink or along a counter top behind or at a side of the sink. When the sprayer is not directly incorporated into the faucet it is sometimes referred to as a “side spray”.
Of course, even such side sprays are typically linked to a faucet via various supply lines under the counter, often via a diversion system that operates such that triggering the side spray will automatically divert water from a faucet outlet to the sprayer head.
In other arrangements, the sprayer is of the pull-out type and is mounted on a part of the faucet itself. See e.g. U.S. Pat. No. 6,220,297. In this type of arrangement, the sprayer can be mounted on a horizontal portion of the faucet. However, in other designs it can be docked to a more vertical part of the faucet. See e.g. U.S. Pat. No. 5,934,325.
Regardless of whether the sprayer is docked between uses on a horizontal, partially vertical, or completely vertical surface, it is desirable that the sprayer appear to be properly positioned between uses. To facilitate this many sprayers have a weighted hose which tends to automatically drag the sprayer back to its seat when the sprayer is not held out from the seat. However, such a system can be defeated if too many boxes and bottles (e.g. dishwashing detergent and counter top cleaner) are stored under the sink and stop the weight from properly performing. Even when that is not the case, the sprayer head, as it docks, can sometimes catch in a position where it appears tilted.
In one approach to address these types of issues, a magnet was associated with the seat to use magnetic force to help properly seat the sprayer during docking. However, that placed some constraints on the materials which were used, and the effectiveness of this technique is somewhat limited if the spray head is accidentally bumped.
U.S. Pat. No. 5,758,690 described the use of a spring loaded ball to help facilitate positioning of a spout part. However, such a system is somewhat complicated to install, and in any event could suffer from maintenance and/or reliability concerns.
U.S. Pat. No. 6,381,770 disclosed the use of flex tabs on a spray head to facilitate mounting of a spray head through side walls of a mounting base. However, this significantly affected the aesthetics of the design.
Accordingly, there exists a need for improving the manner in which sprayers are docked to their seating areas between uses, without incurring these other types of concerns.
In one aspect the invention provides a sprayer seating assembly. The sprayer seating assembly includes an escutcheon suitable for positioning on a surface of a support. The escutcheon has a bore extending there through and a recess adjacent the bore. A sprayer head is linked to a supply hose and has a recess adjacent a base portion of the sprayer head.
The sprayer head and supply hose are positioned so that the supply hose extends out of a first end of the bore, and so that the sprayer head can at the same time extend beyond a second end of the bore. A flexible snap member is mounted in one of the recesses such that it can flex at least partially into the other of the recesses when the recesses are aligned. When the sprayer head is not in use, the escutcheon forms a rest seat for the sprayer head and the flexible snap member assists in removably retaining the sprayer head against the rest seat.
In one form the sprayer seating assembly is mounted to a support selected from the group consisting of essentially horizontal counter tops, essentially horizontal plumbing fixture walls, and essentially horizontal plumbing fitting walls. The escutcheon may be threaded to a supply tube. A clamping nut may be mounted to the supply tube such that the escutcheon and the clamping nut sandwich the support.
In another form the escutcheon may have a tapered portion along the bore to accommodate in docking fashion a tapered portion of the base portion of the sprayer head.
In yet another form the base portion of the sprayer head may be connected to the supply hose via a ball and socket connection. A filter may be positioned downstream of the ball and socket connection in the sprayer head.
In still yet another form, a plastic washer is positioned in the bore upstream of the sprayer head.
In other forms the flexible snap member may be a snap ring mounted in an annular recess in the escutcheon. The recesses in the escutcheon and on the sprayer head could both be essentially annular. The flexible snap member may be made of a plastic. The flexible snap member may have a radially inward edge that is pointed.
It should therefore be understood that the present invention provides a sprayer head assembly incorporating a flexible snap member to improve the docking of a sprayer head into an escutcheon. When docked, the flexible snap member helps to maintain the sprayer head in an upright position in the escutcheon. Without the flexible snap member, the sprayer head would have a greater tendency not to dock properly when inserted into the escutcheon.
Moreover, the flexible snap member will provide an improved tactile/assurance experience during the docking and undocking operations. When a user inserts or removes the sprayer head from the escutcheon, there is a defined moment at which the user feels a change in resistance. This change in resistance is an indication that the docking operation has worked and provides a sense of quality.
These modifications to a standard sprayer docking system can be achieved at low cost. Further, they can operate in a reliable manner long term.
The foregoing and other advantages of the present invention will become apparent from the following description. In that description reference will be made to the accompanying drawings which form a part thereof, and in which there is shown by way of illustration an example embodiment of the invention. However, the example embodiment is not intended as a representation of the full scope of the invention. Rather, the claims should be looked to for that purpose.
Referring first to
The faucet 10 may have a conventional base 16 with a valve control handle 18 that extends out a side. In a well known manner, rotating the handle will control both volume and temperature. The faucet in this embodiment has a swing type J spout 20 which terminates in a conventional aerated outlet 22. When the spray is not being used, and the user turns the handle 18, water will flow from underneath the support 14, through the base 16, past a valve (not shown), to the spout 20, and then out the outlet 22.
In a conventional manner, and via a diverter associated with faucet 10, when the sprayer head 12 is triggered this will divert water from the operating faucet 10 to the sprayer head. When the triggering stops, water will restart through the spout 20, until the handle 18 turns the faucet off.
Between uses the sprayer head 12 is docked in a decorative escutcheon 24 at a position to the side of the faucet 10. As depicted in
The sprayer head 12 has a generally cylindrical main body 26 with a base portion 28, and a top portion 30 that has a plurality of nozzles 32. The sprayer head 12 includes a trigger 34 located on the side of the body 26.
The internal operation of the sprayer head 12 can be of a conventional well known type. For example, the trigger 34 can be outwardly biased to an off position in which no water flows from the nozzles 32. When the faucet 10 is on and the trigger 34 is squeezed, water will flow out of the nozzles 32 of the sprayer head 12. In another form, the sprayer head 12 may operate independently of the faucet 10. In this form, squeezing the trigger 34 will initiate spraying from the nozzles 32 whether or not the faucet 10 was initially running.
Referring next to
In
Perhaps more importantly, a flexible snap member 44 is mounted and retained in the recess 40 in the escutcheon 24. Most preferably, the flexible snap member 44 is a snap C-ring. Alternatively, it can be other types of generally ring-shaped members, with an arcuate segment removed.
It should be appreciated that during the mounting of the flexible snap member 44 into the recess 40 of the escutcheon 24, the flexible snap member 44 is temporarily radially compressed and inserted into the bore 38, where it then returns to its original unstressed shape. The flexible snap member 44 has a radially inward edge 46 that is particularly shaped to engage the recess 42 of the sprayer head 12. The flexible snap member 44 may be made of plastic or any other material that is sufficiently elastic to withstand the deformation necessary to compress or expand during mounting and the docking operation.
The recess 40 of the escutcheon 24 and the recess 42 of the sprayer head 12 are both preferably annular. However, other shapes and types of recesses could be used to accommodate for other types of flexible snap members.
Although the flexible snap member 44 is shown as being mounted in a recess 40 of the escutcheon 24, that a flexible snap member could also be mounted in the recess 42 of the sprayer head 12. Thus, one of the recesses will have the flexible snap member initially mounted in it, while the other of the recesses will be used to receive the flexible snap member for retention purposes when the recesses are vertically aligned during docking. However, it is preferable to place the snap member in the escutcheon 24 initially as initially placing it on the base of the sprayer head leaves it somewhat more visible.
Referring now primarily to
Alternatively, escutcheon 24 may be integrally formed with the sleeve 48. In this form, the clamping nut 50 could be directly threaded to a portion of the escutcheon 24.
As a refinement, to minimize damage to the support 14, and to inhibit leakage past the escutcheon, an o-ring 52 may be placed in a channel along the underside of the escutcheon 24 to contact the top side of the support 14. Also, a spacer 54 may be placed between the clamping nut 50 and bottom side of the support 14.
Referring now specifically mostly to
At one end, the supply hose 36 is fitted over the multiple barb tube fitting 58. At the other end, the ball joint portion 60 is placed in a socket joint portion 64 of the sprayer head 12. An o-ring 66 forms a seal between the ball joint portion 60 and the socket joint portion 64, so that any water is directed through a filter 68 placed downstream of the ball and socket joint and through the sprayer head 12.
This ball and socket joint allows the sprayer head 12 to rotate and pivot somewhat freely relative to the hose 36. If the sprayer head 12 was more rigidly connected to the supply hose 36, then certain types of movement may be difficult without twisting the supply hose 36.
Importantly,
When the base portion 28 of the sprayer head 12 is inserted into the bore 38, the flexible snap member 44 is expanded until it suddenly snaps to engage or snag the recess 42 of the base portion 28 when the recesses 40 and 42 align. In this position, the flexible snap member 44 occupies at least a portion of each of the recesses 40 and 42 to help retain the sprayer head 12 in the upright position.
In some forms, even when the flexible snap member 44 occupies at least part of both recesses 40 and 42, the flexible snap member 44 is still elastically flexed and would like to return to its original shape (e.g., the shape of the flexible snap member 44 in
To promote smooth docking, both the base portion 28 of the sprayer head 12 and the bore 38 of the escutcheon 24 may have tapered walls as shown. In this way, during the docking a smaller part of the base portion 28 of the sprayer head 12 first enters the larger part of the bore 38 of the escutcheon 24. This decreases the likelihood of the edges of the components prematurely snagging on one another. Moreover, as the base portion 28 is fully seated in the bore 38 of the escutcheon 24, the sprayer head 12 is directed into a centered upright position.
Further, the combination of the tapered walls and the flexible snap member provide additional advantages. For example, in comparison to essentially vertical parallel walls, the tapered walls decrease the response time of the flexible snap member 44.
There may also be a protective washer 70 placed on the bottom of the bore 38 to prevent metal-on-metal contact between bottom of the base portion 28 and the bottom of the bore 38. The protective washer 70 may be made of a polymeric material.
Thus, the sprayer seating assembly of the present invention achieves a variety of important advantages. It helps secure the sprayer head in a proper docking position, and maintain the sprayer head in that position if accidentally bumped. Further, it helps inform the consumer when a proper docking position has been reached. Also, when the concept is used on a support that is not completely horizontal, it reduces the likelihood of sprayer head droop between uses.
What has been described thus far is merely a preferred embodiment of the invention. It should be appreciated that various other modifications could be made without departing from the spirit and scope of the invention. For example, the flexible snap member could be mounted to the base portion of the sprayer head instead of in the bore of the escutcheon. Thus, the claims should be looked to in order to judge the full scope of the invention.
The present invention provides improved sprayer seating assembly for docking and undocking a sprayer head from a seating area.
