Embodiments of the present technology generally relate to air pumps, and, more particularly, to air pumps for inflating bicycle tires.
In order for a bicycle to operate effectively, the air pressure in the tires of the bicycle should be maintained at a certain level. Over time and over the course of use, bicycle tires leak air such that the air pressure in the tire decreases to an undesirable level. Therefore, bicycle users frequently need to refill the air in the tires of their bicycles with an air pump. While many bicyclists have their own portable bike pump which they keep at home or take with them on rides, “public” bicycle pumps exist that are configured to be secured to the ground outdoors along bike paths or at parks, bike stations, or shops so that many different bicyclists can use the pump.
Conventional bicycle pumps typically are lightweight and not made of particularly robust materials. Therefore, bicycle pumps, especially public pumps mounted outdoors, can wear out and break quickly from use and the elements. Moreover, many of the parts of a conventional bicycle pump are integrally formed together as a single piece, and, therefore, it is not easy to disassemble the bike pump or remove or replace individual parts of the bike pump. In addition, it can be cumbersome to keep a bicycle balanced while filling its tires with air with a pump.
Certain embodiments of the present technology provide a pump for inflating tires with air. The pump includes a body having a base and a cutout configured to receive a tire of a bicycle. The base is configured to be anchored to the ground. The pump includes a handle assembly including a piston rod and a handle bar. The pump includes a tube positioned in the body and secured to at least one plate in the body. The tube slidably receives the piston rod and is connected to an air line. The pump includes a hose connected to the air line and extending from the body. The hose has a head configured to engage a nozzle of the tire. When the piston rod is moved downward within the tube, air is displaced from the tube and through the air line to the hose such that the head dispenses air.
The pump may include a top portion that is detachably connected by a fastener to a tab located in the body. The tab may be a part of a ring connected to an interior surface of the body. The tube may be secured to an upper plate and a lower plate in the body. The tube may include first and second annular grooves, wherein the first annular groove receives a portion of the upper plate and the second annular groove receives a portion of the lower plate.
The pump may include at least one plate connected to the body inside the cutout. The pump may include a protective plate on an exterior of the body configured to engage the nozzle head. The pump may include a pressure gauge mounted to the body. The cutout of the pump may extend through the base.
The air line of the pump may include a first air line that is connected at a first end to a first fitting extending from the tube and that is connected at a second end to a check valve, a second air line that is connected at a first end to the check valve and that is connected at a second end to a splitter, a third air line that is connected at a first end to the splitter and that is connected at a second end to a second fitting connected to the pressure gauge, and a fourth air line that is connected at a first end to the splitter and that is connected at a second end to a third fitting connected to the hose.
Certain embodiments of the present technology provide a pump for inflating tires with air. The pump includes a body having a base and a top portion and a cutout configured to receive a tire of a bicycle. The base is configured to be anchored to the ground and the top portion is detachably connected by a fastener to a tab positioned in the body. The pump includes a handle assembly including a piston rod and a handle bar. The pump includes a tube positioned in the body and secured to an upper plate and a lower plate in the body. The tube slidably receives the piston rod and is connected to an air line. The pump includes a hose connected to the air line and extending from the body. The hose has a head configured to engage a nozzle of the tire. When the piston rod is moved downward within the tube, air is displaced from the tube and through the air line to the hose such that the head dispenses air.
The tab of the pump may be part of a ring connected to an interior surface of the body. The tube of the pump may include first and second annular grooves, wherein the first annular groove receives a portion of the upper plate and the second annular groove receives a portion of the lower plate. The pump may include at least one plate connected to the body inside the cutout. The pump may include a protective plate on an exterior of the body configured to engage the nozzle head. The cutout of the pump may extend through the base. The pump may include a pressure gauge mounted to the body.
The air line of the pump may include a first air line that is connected at a first end to a first fitting extending from the tube and that is connected at a second end to a check valve, a second air line that is connected at a first end to the check valve and that is connected at a second end to a splitter, a third air line that is connected at a first end to the splitter and that is connected at a second end to a second fitting connected to the pressure gauge, and a fourth air line that is connected at a first end to the splitter and that is connected at a second end to a third fitting connected to the hose.
The hose of the pump may be made of threaded metal. The piston rod of the pump may include a piston head on which is mounted two flexible gaskets that each form a seal with an interior wall of the tube.
Before the embodiments of the technology are explained in detail, it is to be understood that the technology is not limited in its application to the details of construction and the arrangement of the components set forth in the following description or illustrated in the drawings. The technology is capable of other embodiments and of being practiced or being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. The use of “including” and “comprising” and variations thereof is meant to encompass the items listed thereafter and equivalents thereof as well as additional items and equivalents thereof.
The body 14 includes a cutout 30 extending there through. The cutout 30 is configured and sized to receive a bicycle tire. The interior of the body 14 includes protective plates 34 on each side of the cutout 30. The plates 34 can be connected to the body 14 by tamper resistant fasteners 36 and are made of, by way of example only, metal, and, in particular, pre-galvanized steel. The cutout 30 can extend through the base 18 such that the bottom of the pump 10 under the cutout 30 is open.
Near the top portion 22, the pump 10 includes an air pressure gauge 38 mounted in a hole 40 in the wall of the body 14. By way of example only, the gauge 38 shows pressure in pounds per square inch. The gauge 38 may alternatively be located in the top portion 22 or elsewhere on the body 14 of the pump 10. The pressure gauge 38 may be filled with oil so that the gauge 38 does not fog up in certain kinds of weather. In particular, the gauge 38 includes a chamber defined by a face and cover, and the chamber is filled at least partly with oil.
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The third air line 130 is connected to the fitting 148 and the splitter 126, and the fourth air line 146 is connected to the fitting 150 and the splitter 126. The second air line 122 is connected to the check valve 118 and the splitter 126, and the first air line 114 is connected to the fitting 110 and the check valve 118. The hose 54 is connected to the nozzle head 62 by the adapter 66, and the adapter 58 of the hose 54 is connected to the fitting 150 in the body 14 through a hole in the body. The adapter 58 can extend into the body 14 of the pump 10 so that a person cannot reach the adapter 58 to disconnect it from the fitting 150. The top portion 22 is connected to the ring 76 by the fasteners 16. The grips 50 are slid on to the handle bar 46 and held in place on the handle bar 46 by glue or other adhesive. It will be understood that assembly of the pump 10 does not have to follow the exact order of steps described above or include every step described above. The pump 10 can be disassembled for repair or part replacement by reversing some or all of the steps described above.
Once the pump 10 is assembled, the pump 10 can be secured to a ground or floor surface by anchors, such as bolts or wedge anchors, that are inserted through the holes 26 of the base 18 into the surface. By way of example, the pump 10 is secured to a concrete ground or floor surface. By way of example only, the pump 10 can be secured to the ground at a park, bike station, or store or along a trail. Alternatively, the pump 10 can be configured to be connected or attached to a bike stand or bike repair station.
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In particular, the bicyclist places at least one hand on the grips 50 of the handle assembly 42 and moves the piston rod 94 up and down. As the piston rod 94 is pulled upward, air is drawn into the tube 82 beneath the piston head 98 through an inlet (not shown) in the tube 82. The bushing 96 is positioned to engage the top of the piston head 98 to prevent the rod 94 from being pulled out of the tube 82. As the piston rod 94 is pushed downward, the piston head 98, which forms a seal with the interior of the tube 82, displaces air out of the tube 82 through the fitting 110 and into the first air line 114.
The displaced air then travels through the first air line 114 and the check valve 118 into the second air line 122. Once the air has passed through the check valve 118, the air cannot go back through the check valve 118 into the first air line 114. Therefore, the air pressure in the second, third, and fourth air lines 122, 130, and 146 increases and, because the air cannot go back through the check valve 118 or through the gauge 38, the air travels through the fourth air line 146 into the hose 54 and into the bicycle tire 70. The air pressure in the bicycle tire 70 increases, as does the pressure in the second, third, and fourth air lines 122, 130, and 146, and this increase in air pressure is shown by the gauge 38. The user continues to move the piston rod 94 up and down in this manner until the gauge 38 shows that the pressure in the system, and thus the tire, has reached a desirable level. The user then disengages the nozzle head 62 from the bicycle tire valve and magnetically re-connects the head 62 to the body 14 of the pump 10.
The various pump embodiments may be configured to be used to inflate any number of other inflatable objects besides bicycle tires and can be used in any number of different locations. The disclosed pump embodiments are made of robust and durable materials and components that provide for greater component lifespans even though the pumps are located outside and are exposed to the elements and repeated use by numerous different bicyclists. Moreover, the pumps are easy to assemble and disassemble, and many of the components are removable. Therefore, if an individual component does wear out or break, the component can easily be removed and replaced without the need to replace the entire pump. For example, the hose, air lines, handle, and air gauge can all easily be removed and replaced by maintenance staff with special tools for tamper resistant hardware. The pumps may also include user friendly features such as an oil-filled pressure gauge that does not fog up and a pump head that can be magnetically connected to the pump body. While the fittings and adapters can be easy-to-use “push to connect” or “quick connect” fittings and adapters, other types of fittings/adapters can be used for connection to the air lines, such as barbed fittings/adapters to which the air lines can be connected.
While various spatial and directional terms, such as top, bottom, lower, mid, lateral, horizontal, vertical, front and the like may used to describe embodiments of the present technology, it is understood that such terms are merely used with respect to the orientations shown in the drawings. The orientations may be inverted, rotated, or otherwise changed, such that an upper portion is a lower portion, and vice versa, horizontal becomes vertical, and the like.
Variations and modifications of the foregoing are within the scope of the present technology. It is understood that the technology disclosed and defined herein extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute various alternative aspects of the present technology. The embodiments described herein explain the best modes known for practicing the technology and will enable others skilled in the art to utilize the technology. The claims are to be construed to include alternative embodiments to the extent permitted by the prior art.
Various features of the technology are set forth in the following claims.
This application is a Continuation of U.S. patent application Ser. No. 16/413,878, filed on May 16, 2019, which is incorporated herein by reference and made a part hereof.
Number | Date | Country | |
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Parent | 16413878 | May 2019 | US |
Child | 17894458 | US |