TWI588369B - Bike tire pump chuck - Google Patents

Description

Bicycle tire pump chuck

The present invention relates generally to a collet that is coupled to a pump for an inflatable bicycle tire or other inflatable article, and more particularly to a pump collet that can be easily coupled to a valve stem of a tire valve and that produces a hermetic seal. .

When inflating a tire of a vehicle, particularly when inflating a tire of a two-wheeled vehicle such as a bicycle, a locomotive, or a motor-assisted locomotive, it is generally inflated using a resilient connecting member. One end of the connector is coupled to an air source such as a bicycle pump or a manual air pump and sealed under pressure, and the other end of the connector is sealed to the valve stem of the tire valve. Tire inflators generally have collets for attachment to the valve stem of a tire valve (or other inflatable article) and are substantially sealed. In order to properly inflate the article, the collet must be sealed to the air valve to avoid or limit the leakage of air from the collet-valve connection. Conventional collets often fail to provide such a sealing effect and air leakage often occurs, thereby causing the tire or article to not be properly inflated.

The conventional collet on the bicycle tire pump is not very well used because it presses the rubber seal against the valve stem by the cam and the lever. Rubber seals must be protected against air leakage at pressures up to 125 PSI, and the chuck must be held on the stem at pressures up to 125 PSI. Due to the above conditions, the lever must exert a large lever force to press the rubber seal, thereby making it difficult to connect the chuck to the valve stem. In addition, due to the sealing tolerance, the operation of inserting the collet into the valve stem becomes difficult, and the operation of the cam lever becomes difficult because a large force is required to press the seal member onto the valve stem. Furthermore, when there is no air in the tire or only a little bit of air, it is difficult to grip the valve stem, making the chuck difficult to insert onto the valve stem.

A method for connecting a pressure device to a subject has recently been disclosed in the art. The collet of the valve stem of the pressure vessel has a body portion having a first passage that can be used to receive the outer tube portion of the valve stem of a pressurized container. The body portion has a guiding portion at an inner end of the first passage. A latch member is movably disposed in a second passage of the body portion and is movable in the direction of the coaxial passage. The guiding portion is provided with an alignment member at least around a portion of the second passage, the alignment member extending in a longitudinal direction toward an engaging end of the body portion and a portion around the latch member for supporting and with the valve stem The inner portion of the end of the outer tube portion is joined. However, such a chuck must rely on the application of external pressure to form a hermetic seal.

A known pump chuck includes a chamber therein and having a top end and a bottom end body; a force transmitting member disposed in the chamber and adjacent to the top end of the body; an elastic collar disposed in the chamber adjacent to the bottom end of the body, and The force transmitting member is engaged; and a cam device is fixed to the top end of the body. The collar defines an axial chamber having an inner wall and an inner diameter. The pressure applied to the collar reduces the inner diameter of the collar, thus causing the collar to engage and seal with the valve stem disposed within the axial chamber. However, the user must apply a considerable amount of force to compress the collar to engage and seal the valve stem.

Another known device discloses a gas collet that provides a manual crimp connection for connection to an automatic vehicle tire or other similar valve stem. The chuck is constructed of a tubular body member that is coupled to the hose end and that has a plunger valve that is fixed by pressure. The plunger valve has a plunger extension that, when pressed against the valve stem of an automated vehicle tire, opens the plunger valve and the valve stem valve valve to allow air to enter the valve stem. The invention is characterized by a combination of a body member, a hose and a plunger valve assembly, wherein a single component member is capable of providing a sealed connection between the hose and the body member, limiting and controlling the action of the plunger valve, and Provides an air flow path between the hose and the plunger valve. However, this device must rely on manual actuation of the plunger valve to complete the connection.

In addition, there are other various types of tires for tire inflation. Pump chuck for the device. One of the above types of devices includes a gas collet for a tire valve. The air collet has a plurality of teeth, and the collet is locked to the valve stem by engaging with a plurality of densely distributed hooks projecting inward in the radial direction; wherein the hooks are transmitted through A sleeve member is slid over the outside of the hook to engage the valve stem. The above described collet has means for pressing the tire valve latch and has means for sealing the outer end of the valve when the collet is engaged. The other of the above types of devices has a quick coupling connection. The quick coupling coupling includes a tubular body having a piston actuator, and the tubular body may be formed as an integral part or two separate parts between a operating rod and a sealing ring; wherein the sealing ring is displaced It will be compressed and pressed tightly against the inflation valve and will form a gas-tight connection along the outer surface of the thread. However, these devices rely on very large rod forces to press the rubber member around the valve stem.

For the above reasons, we can see that there is a need in the industry at present. A pump chuck that is easily attached to the stem of a tire valve. The required pump chuck should include a pivot clamp that can easily secure the stem to the pump chuck. In addition, such a pump chuck requires the user to easily hold the valve stem when there is no air in the tire. Finally, the fixture must be durable and economical. The present invention overcomes the shortcomings of the prior art by accomplishing these key objectives.

In order to minimize the limitations found in the prior art, and to minimize the limitations apparent to those skilled in the art upon reading the specification, the present invention provides a pump chuck that uses a pivot clamp having a corresponding thread, So that it can be easily connected to the stem of the tire valve.

The pump collet creates a hermetic seal when the valve stem is inserted into the pump collet and pushed against the rubber seal.

A pump chuck according to a preferred embodiment of the present invention includes a body, at least one pivot clamp, an end cap, a rubber seal, a latch, and a spring. In the preferred embodiment of the invention, a compression spring is used as the spring, however, a torsion spring can also be used. The body has at least one valve stem having an inner bore a hole, and the system includes a first hole for receiving the rubber seal and a second hole for receiving the compression spring. The body has a third aperture for receiving a connector of the hose from the tire pump. The pivot pin is pivotally connected to the body by means of a pivot screw. The pivot clip compresses the compression spring toward the body. The pump chuck is further mounted to the body and is located at an end cap that receives the first hole of the rubber seal. The end cap has a smooth bore that is slightly larger in diameter than the diameter of the valve stem. The pivot clamp has a plurality of threads corresponding to the threads on the valve stem for securing the valve stem to the pump chuck. The underside of the end cap holds the rubber seal in the first hole.

In order to connect the pump chuck to the valve stem, the pivot clamp is pushed down, And the valve stem is inserted into the stem hole or the first hole of the end cap. The pivot clamp must be moved a sufficient distance to allow the threads in the pivot clamp to move away from the valve stem. The pivotal clamp is then released so that the compression spring pushes the pivot clamp toward the valve stem and allows the valve stem to be held tightly between the pivot clamp and the end cap. The pivot point of the pivot clamp is delicately located near the outer diameter of the valve stem to secure the valve stem as the air pressure is increased.

The invention can be easily slid out of the valve stem, and the pivot clamp can be rubber The clothes are opened as pins to secure the pump chuck to the valve stem. Since the pump chuck can be easily attached to the valve stem, the operator can easily hold the valve stem when inserting the pump chuck even when there is no air in the tire. In addition, the pump chuck can be used with two different types of valve stems: the Schrader valve and the Presta valve.

The present invention provides a pin for use with an American air valve.

A first object of the present invention is to provide a pump chuck that can be easily coupled to a valve stem.

A second object of the present invention is to provide a pump chuck that can be applied to an American air valve and a French air valve.

A third object of the present invention is to provide an economical and durable pump chuck.

The above-described and other features and advantages of the present invention will become more apparent from the <RTIgt;

10‧‧‧ pump chuck

12‧‧‧ Subject

14‧‧‧ pivot clamp

16‧‧‧Compressed spring

18‧‧‧End cover

20‧‧‧Connecting parts

22‧‧‧ valve stem

23‧‧‧Valve stem/stem

26‧‧‧Rubber seals/washers

28‧‧‧Hose

29‧‧‧Upper subject

30‧‧‧ Inner hole / stem hole / first hole

32‧‧‧Second hole

34‧‧‧ top surface

36‧‧‧ third hole

38‧‧‧ passage

40‧‧‧Slong part

42‧‧‧ wing

44‧‧‧ hole

46‧‧‧ pivot screw

48‧‧‧ thread

50‧‧‧corresponding thread

52‧‧‧Depression

54‧‧‧Smooth holes/holes

56‧‧‧ hole

58‧‧‧ screws

60‧‧‧ pivot point

62‧‧‧ hole

64‧‧‧ first end

66‧‧‧second end

72‧‧‧Latch

80, 82, 84, 85, 86‧‧‧ pump chucks

In order to improve clarity and improve the understanding of the various elements and embodiments of the invention, the elements in the figures are not necessarily drawn to size. In addition, elements that are common and understandable to those of ordinary skill in the art are not drawn, thereby providing a clearer illustration of embodiments of the invention; therefore, the following figures are clear and concise Drawn for the purpose.

1 is a perspective side view showing a pump chuck according to a preferred embodiment of the present invention; and FIG. 2 is a perspective side view showing a pump chuck connected to an American valve stem according to a preferred embodiment of the present invention. Figure 3 is a cross-sectional view showing the pump chuck connected to the American valve stem according to the preferred embodiment of the present invention; and Figure 4 is a perspective plan view showing the main body of the pump chuck of the present invention; A perspective view showing a pivot clamp of the pump chuck of the present invention; Fig. 6 is a perspective view showing an end cap of the pump chuck of the present invention; and Fig. 7 is a view showing decomposition of the pump chuck according to a preferred embodiment of the present invention. Figure 8 is a perspective view showing a rubber seal of the pump chuck of the present invention; and Figures 9A-9E are perspective views showing various configurations of the pump chuck of the present invention.

The various embodiments and applications of the present invention are described in detail below with reference to the accompanying drawings in which: FIG. It will be appreciated that those of ordinary skill in the art can change or implement the embodiments without departing from the scope of the invention. His embodiment.

The various inventive features described below may be implemented separately or It is implemented in combination with other features. However, any single inventive feature may not be used to address any of the disadvantages of the prior art described above, or may be used solely to address one of the various disadvantages set forth above. Furthermore, the problems described above may not be completely solved by any of the features described below.

1 and 2 show a preferred embodiment in accordance with the present invention. A perspective side view of the pump chuck 10. The pump chuck 10 includes a main body 12, at least one pivot clamp 14 pivotally connected to the main body 12, a compression spring 16 compressed between the pivot clamp 14 and the main body 12, and an end cover 18 fixed to the main body 12. And a connector 20 mounted to the body 12 for connection to a hose 28 (not shown) of a tire pump (see Figure 3).

Figure 3 is a view showing a pump chuck 10 according to a preferred embodiment of the present invention. A side view in which the valve stems 22 are connected. The pump chuck 10 further includes a rubber seal housed in the body 12 and a latch 72 received in the body 12. The hose 28 of the tire pump (not shown) is clamped by the connector 20.

Figure 4 is a perspective view showing the main body 12 of the pump chuck 10 of the present invention. Figure. Referring to Figures 3 and 4, the body 12 has at least one valve stem bore 30 including an inner bore 30 for attachment of a valve stem 22. The inner hole 30 includes a first hole 30 of the main body 12, a second hole 32 on the top surface 34 of the main body 12, a third hole 36 on one side surface of the main body 12, and a connection A hole 30 and a passage 38 of the third hole 36. The rubber seal 26 is received in the first bore 30 of the body 12. The latch 72 is received in the first bore 30 of the body 12. The connector 20 is received in a third aperture 36 of the body 12 for connection to a hose 28 of a tire pump (not shown).

Figure 5 is a perspective view of the pivot clamp 14 of the pump chuck 10 of the present invention. The pivot clamp 14 has an elongated portion 40 and a pair of wings 42 extending perpendicularly from both sides of the elongated portion 40. Each of the pair of wings 42 has a hole 44 at one end thereof for insertion of a pivot screw 46 (see Fig. 3) for attachment to the body 12. The pivot clamp 14 has a plurality of threads 48 at one end of the elongated portion 40 for use with the valve stem A plurality of corresponding threads 50 (see Fig. 2) on 22 are joined. The pivot clamp 14 is also provided with a recess 52 (see FIG. 7) on its bottom surface for fixing the compression spring 16.

Figure 6 is a perspective view of the end cap 18 of the pump collet 10 of the present invention. The end cap 18 has a smooth bore 54 therethrough for receiving the valve stem 22. The end caps 18 also have a pair of apertures 56 on either side of the aperture 54 for insertion of a pair of screws 58 (see Figure 7) for attachment to the body 12. The diameter of the bore 54 is slightly larger than the diameter of the valve stem 22. The end cap 18 retains the rubber seal 26 in the first bore 30 of the body 12.

Figure 7 is a view showing a pump chuck 10 according to a preferred embodiment of the present invention. Exploded map. The pivot clamp 14 is mounted to the body 12 by means of a pivot screw 46 that is inserted into the body 12 as a pivot point and that is located on the body 12 adjacent to the valve stem 22 Next to the diameter. A pivot screw 46 is inserted and passes through one of the plurality of holes 62 in the body 12. When the pivot clamp 14 is secured to the body 12, the compression spring 16 is compressed between the pivot clamp 14 and the body 12. The first end 64 of the compression spring 16 is disposed in a recess 52 on the bottom surface of the pivot clamp 14, and the second end 66 of the compression spring 16 is disposed in the second bore 32 of the body 12. The end cap 18 is secured to the top surface 34 of the body 12 by a pair of screws 58 that are inserted through one of the plurality of apertures 62 in the body 12. The end cap 18 is secured in such a manner that the aperture 54 of the end cap 18 is aligned with the first aperture 30 of the body 12.

Figure 8 is a view showing the rubber seal 26 of the pump chuck 10 of the present invention. Body map. The gasket 26 is a rubber seal that forms a hermetic seal when pushed toward the valve stem 22.

When the pump chuck 10 is coupled to the valve stem 22, the pivot clamp 14 is facing away Pushing down, the valve stem 22 is inserted into the bore 54 of the end cap 18 and pushed in the direction of the rubber seal 26. The pivot clamp 14 must be moved a distance sufficient to enable the thread 48 of the pivot clamp 14 to completely exit the valve stem 22. The pivot clamp 14 is then released such that the compression spring 16 pushes the pivot clamp 14 toward the valve stem 22, thereby holding the valve stem 22 tightly between the pivot clamp 14 and the end cap 18. Pivot point 60 is in the line Near the outer diameter of the valve stem 22 (see Figure 3) to secure the valve stem in position as the tire pressure increases.

The pump chuck 10 of the present invention can be applied to the following two different types Valve stem: American valve stem 22 (Strader valve stem) and French valve stem 23 (Presta valve stem). In order to accommodate two different types of valve stems (American valve stem 22, French valve stem 23), the dimensions of the various components in pump chuck 10 will vary slightly. The pivot clamp 14 uses the M8 X.75P thread when mated with an American air valve (not shown) and the M8 X.75P thread when mated with a French air valve (not shown). . The aperture 54 of the end cap 18 will have a diameter of 7.8 mm when mated with an American air valve, and the aperture 54 of the end cap 18 will have a diameter of 6.1 mm when mated with a French air valve. The distance between the central axis of the valve stem 22 and the valve stem 23 of the French valve stem is 0.150 配合 when mated with the American valve, and 0.115 配合 when mated with the French valve stem. . The rubber seal 26 has an inner diameter of approximately 0.188 配合 when mated with an American valve stem or a French valve stem.

9A to 9E are diagrams showing the pump chuck 10 of the present invention. Schematic diagram of a configuration. The pump chuck 10 can be a single unit that is only suitable for one of an American air valve (not shown) or a French air valve (not shown), or can be applied to an American air valve at the same time (not shown in In the figure) is a double unit with a French air valve (not shown). Figure 9A is a perspective top view of pump chuck 80, which is a single unit that is only suitable for use with one of an American air valve (not shown) or a French air valve (not shown). Figure 9B is a perspective top view of the pump chuck 82, which is a dual unit having an adjacent configuration, which can be applied to both an American air valve (not shown) and a French air valve (not shown). In an adjacent configuration, an American air valve (not shown) and a French air valve (not shown) are attached to the same side of the pump chuck 82. Figure 9C is a perspective side view of the pump chuck 84, which is a double unit with a straight line configuration, and can be applied to a valve stem of the type of a US air valve (not shown) and a French air valve (not shown). . In the straight configuration, the US air valve and the French air valve are connected to opposite sides of the pump chuck 84. Fig. 9D is a perspective front view of the pump chuck 85, which is a double unit having a straight configuration, which can be applied to an American air valve (not shown) and a French air valve (not shown). The upper body 29 has two valve stem holes 30, 31, and Rotate 180 degrees to engage the pivot clamp. Figure 9E is a perspective front elevational view of the pump collet 86, which is a dual unit with a straight configuration that can be adapted for use with an American air valve (not shown) and a French air valve (not shown). A valve stem bore 30 for an American air valve (not shown) is located on the opposite side of the body 12 from a valve stem 31 for a French air valve (not shown), and a single pivot clamp 14 is engaged with the valve stem 22 or the valve stem 23.

The pump collet 10 disclosed in the present invention has the advantage that it can be easily The ground slide is sleeved outside the valve stem 22 of an American air valve (not shown) or a French air valve (not shown), and the pivot clamp 14 can be opened like a clothes pin to move the pump chuck Fixed to the valve stem 22. In addition, since the pump chuck 10 can be easily engaged with the valve stem, the operator can easily hold the valve stem 22 when the pump chuck is inserted when there is no air in the tire. Furthermore, the pump chuck 10 can be applied to an American air valve (not shown) and a French air valve (not shown).

Although the embodiments are described with reference to the accompanying drawings in the present invention, It will be understood that those skilled in the art can implement the invention in other forms without departing from the spirit and scope of the invention. Therefore, the above-described embodiments of the present invention are intended to be illustrative only and not to limit the scope of the invention.

10‧‧‧ pump chuck

12‧‧‧ Subject

14‧‧‧ pivot clamp

16‧‧‧Compressed spring

18‧‧‧End cover

20‧‧‧Connecting parts

Claims (22)

A bicycle tire pump chuck for connecting to a valve stem of a tire valve, the pump chuck comprising: a body having: at least one valve stem having an inner hole, the at least one valve stem being in the a surface of the body includes a first hole; a second hole is located on a top surface of the body; a third hole is located on a side surface of the body; and a channel, the first a hole is connected to the third hole; at least one pivot pin is pivotally connected to the surface of the main body corresponding to the first hole, the pivot pin has a plurality of corresponding threaded joints with the valve stem a plurality of threads, and the pivot pin has a recess on a bottom surface thereof; a spring is compressed between the pivot pin and the body, wherein a first end of the spring is disposed at the pivot a recessed portion of the shaft clamp, and a second end of the spring is disposed in the second hole of the body; a rubber seal having a hole therethrough, wherein the rubber seal is received In the first hole of the body; an end cap is disposed at the The surface of the body is above the first hole, wherein the end cap has a hole therethrough, and the hole of the end cover is aligned with the first hole to receive the valve stem; and a connecting piece Provided in a third hole of the body to be connected to a hose of a tire pump; Wherein the contact of the rubber seal relative to the valve stem affects the hermetic seal; wherein the end cap aligns the valve stem to be disposed in the center of the first hole of the body; and wherein The end cap supports the stem directly to the body of the pump collet and prevents the stem from moving as the pivot pin pushes toward the stem. The pump collet of claim 1, wherein the pivot pin is mounted at a pivot point on the body, and the pivot point is located on the body adjacent to the valve stem The position of the outer diameter. The pump collet of claim 1, wherein the threads of the pivot clamp engage the corresponding threads on the valve stem to secure the valve stem to the pump collet. The pump collet of claim 1, wherein the valve stem is inserted into the pump collet and urged against the rubber seal to form a hermetic seal. The pump collet of claim 1, wherein the end cap holds the rubber seal in the first hole of the body. The pump collet of claim 1, wherein the spring urges the pivot clamp toward the valve stem to retain the valve stem in the bore of the end cap. The pump collet of claim 1, wherein the stem hole is for receiving a valve stem of a Schrader valve and a French valve. A bicycle tire pump chuck for connecting to a valve stem of a tire valve, the pump chuck comprising: a body having: at least one valve stem having an inner hole, the at least one valve stem being in the a surface of the body includes a first hole; a second hole is located on a top surface of the body; a third hole is located on a side surface of the body; and a channel, the first a hole is connected to the third hole; at least one pivot pin is pivotally connected to the surface of the corresponding first hole provided on the body, the pivot pin has a plurality of corresponding threads for the valve stem a plurality of threads that are engaged, and the pivot pin has a recess on a bottom surface thereof; a spring is compressed between the pivot pin and the body, wherein a first end of the spring is disposed on the a second end of the spring is disposed in the second hole of the body; a rubber seal having a hole therethrough, wherein the rubber seal is coupled Placed in the first hole of the body; a latch is received in The hole in the rubber seal and the first hole of the body; an end cap disposed on the surface of the body and above the first hole, wherein the end cap has a hole therethrough, and The hole of the end cap is aligned with the first hole to receive the valve stem; and a connecting member is disposed in the third hole of the main body to be connected with a hose of a tire pump; Wherein the rubber seal affects a hermetic seal with respect to the contact of the valve stem; wherein the end cap aligns the valve stem to be disposed in the center of the first hole of the body; and wherein The end cap supports the stem directly to the body of the pump collet and prevents the stem from moving as the pivot pin pushes toward the stem. The pump collet of claim 8, wherein the pivot pin is mounted at a pivot point on the body, and the pivot point is located on the body adjacent to the valve stem The position of the outer diameter. The pump collet of claim 8 wherein the threads of the pivot clamp engage the corresponding threads on the valve stem to secure the valve stem to the pump collet. The pump collet of claim 8 wherein the valve stem is inserted into the pump collet and urged against the rubber seal to form a hermetic seal. The pump collet of claim 8 wherein the end cap retains the rubber seal in the first aperture of the body. The pump collet of claim 8 wherein the spring urges the pivot clamp toward the valve stem to retain the valve stem in the bore of the end cap. The pump chuck according to item 8 of the patent application is further connected to an American air valve, wherein the pin pushes the tire valve inward and opens the tire valve. The pump chuck of claim 8 wherein the latch is removed for connection to a French valve. A bicycle tire pump chuck for connecting to a valve stem of a plurality of tire valves, the pump chuck comprising: a body having: at least two valve stem holes, each of the at least two valve stem holes Having an inner bore, and the at least two valve stem cavities are on a top surface or a bottom surface of the main body; a hole in the top surface of the main body; on one side surface of the main body a hole through which the inner holes of the stem holes are connected to the holes on the side surface of the body; at least one pivot pin corresponding to each of the at least two valve stem holes In one case, each of the pivotal clamps is pivotally connected to a same surface as the corresponding stem bore, wherein each of the pivotal clamps has a plurality of threads for engaging a plurality of corresponding threads of the valve stem, and Each of the pivot clips has a recess on a bottom surface thereof; at least one spring corresponding to each of the at least one pivot clip, each spring is compressed between the corresponding pivot clip and the body Wherein a first end of the spring is disposed on the pivot clamp Recesses, and a second end of the spring system is disposed in the hole of the side surface of the main body; At least one rubber seal corresponding to each of the at least two valve stem holes, each of the rubber seals having a hole therethrough, wherein each of the rubber seals is received in the corresponding valve stem At least one end cover corresponding to each of the at least two valve stem holes, each of the end caps being disposed above each corresponding one of the valve stem holes, each of the end caps having a hole therethrough, each of the holes The hole of the end cap is aligned with the corresponding stem hole to receive the valve stem; and at least one connecting member is received in the hole on the side surface of the body to be associated with a tire pump a hose connection; wherein the rubber seals affect the hermetic seal relative to the contact of the valve stems; wherein the threads of the pivot clamps engage the corresponding threads on the valve stems When the valve stem is fixed to the pump collet; wherein the end cap aligns and fixes the rubber seals with the valve stems in the corresponding valve stem holes, in the pivot clamp Preventing movement when pushed to the corresponding valve stem; and wherein The spring-based pivot clip toward the valve stem, the valve stem to remain in the hole of the end cap. The pump chuck of claim 16, wherein the valve stem for receiving a first American air valve or a first French air valve is for receiving a second American air valve or A stem hole of a second French air valve is disposed adjacent to each other on the top surface or the bottom surface of the body of the pump chuck. A pump collet according to claim 17, wherein one of the pivotal clamps is pivotally attached to the top surface of the body of the pump collet. The pump chuck of claim 16, wherein the valve stem for receiving a first American air valve or a first French air valve is for receiving a second American air valve or A stem hole of a second French air valve is disposed on an opposite surface of the body of the pump chuck. The pump collet of claim 19, wherein the stem holes can have a linearly aligned configuration. The pump chuck according to claim 16 of the patent application has two pivot clamps, and each of the valve stem holes is provided with one pivot clamp. A pump collet according to claim 19, having a pivot clamp, wherein the main system is rotated 180 degrees to allow the pivot clamp to engage the corresponding valve stem.