Pressure measuring device

Abstract

Pressure measuring device (32) for a bicycle, wherein the pressure measuring device (32) comprises: a housing (42; 242) which includes a removable power source section (44; 244); a pressure chamber (50; 250), wherein the pressure chamber (50; 250) comprises an inlet, an outlet and a measuring element opening (60), wherein the pressure chamber (50; 250) is designed to allow fluid to pass through it between the inlet and the outlet; a measuring element (58; 258) which is designed to measure a pressure in a measuring chamber (63), wherein the measuring chamber (63) is in fluid communication with the pressure chamber (50; 250) through the measuring element opening (60); an energy source (106; 206) which is arranged on the removable energy source section (44; 244) in the housing (42; 242), wherein the energy source (106; 206) is configured to provide energy to the measuring element (58; 258); and a valve device (205) which is arranged in the inlet, wherein the pressure measuring device (32) is arranged at least partially between a spoke bed (34) and a tire arrangement bed (36) of a rim (20).

Description

BACKGROUND OF THE INVENTION

[0001] This application is a partial continuation of US patent application No. 15 / 635,974, filed on June 28, 2017, the entirety of which is incorporated herein.

[0002] A bicycle can be equipped with pneumatic tires. The characteristics of these tires depend on the pressure they are inflated to. Optimal pressure for modern bicycle tires can range from slightly more to several times atmospheric pressure. Variables including tire size, tire type, bicycle and rider weight, surface conditions, and riding style all influence optimal tire pressure. Limitations in size, weight, and packaging of certain bicycle tires and wheel assemblies can lead to significant pressure loss, making regular pressure checks essential to maintain even a fixed optimal pressure. Defects or damage in or to tires or tire assemblies can cause slow pressure leaks, which can be identified with regular pressure checks before they become problematic.Furthermore, frequent pressure adjustments due to changing variables mean that a driver will benefit from convenient and accurate pressure measurement.

[0003] Typically, bicycle tire pressure is measured using an external pressure gauge, such as those found on floor-based tire pumps. Such a gauge must be connected to the tire assembly to take a reading and cannot measure tire pressure while the bicycle is in use and the tire assembly is rotating. Using such a gauge to detect leaks is not ideal, as many leaks can originate from damage that occurs while the bicycle is being ridden, and therefore, such an external device cannot detect them. The requirement for a separate or external gauge, not designed as a permanent or semi-permanent component of the bicycle, limits the ability of a rider to make precise pressure adjustments.For example, tire pressure can typically be increased using a tire inflation device, such as a cartridge inflator or a portable tire pump without a pressure gauge, and can be decreased by selectively opening a tire valve. However, without a device that accurately measures tire pressure, the usefulness of these pressure adjustment techniques in achieving optimal tire pressure is limited.

[0004] Pressure measuring devices that can be attached to a tire valve protruding from the rim of a wheel are known from the prior art documents FR 2 225 300 A1, CN 1 872 573 A, US 7 458 256 B1 and US 2015 / 0 217 606 A1.

[0005] The present invention addresses the problems mentioned above and aims to provide a pressure measuring device for a bicycle which is designed to measure the tire pressure during tire pressure adjustment and during bicycle operation, and which is easy to maintain.

[0006] The above problem is solved by the pressure measuring device for a bicycle according to claim 1. Advantageous embodiments are described in the dependent claims.

[0007] One embodiment provides an exemplary pressure measuring device for a bicycle, wherein the pressure measuring device comprises a housing, the housing having an alignment feature, and a pressure chamber being received in the housing; and a valve device extending through the housing and in fluidic communication with the pressure chamber and with a tire assembly. The valve device has a valve device alignment feature configured to interact with the housing alignment feature to fix a rotational position of the housing relative to the valve device about an alignment axis.

[0008] Another embodiment provides an exemplary pressure measuring device for a bicycle, wherein the pressure measuring device comprises a pressure chamber in fluidic communication with a tire assembly; a measuring element configured to measure the pressure of the pressure chamber; a wireless communication means configured to transmit a pressure signal conveying the pressure of the pressure chamber; and a display device attached to the tire assembly, configured to provide a perceptible indication of the pressure of the pressure chamber, operating in a first display mode when the pressure is within a first predetermined pressure range; and operating in a second display mode when the pressure of the pressure chamber is outside the first predetermined pressure range. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a side view of a type of racing bicycle that can be used to mount a pressure measuring device; Fig. Figure 2 is a side view of a type of off-road bicycle that can be used to mount a pressure measuring device; Fig. Figure 3 is a side view of an embodiment comprising a pressure measuring device that is arranged at least partially between a spoke bed and a tire mounting bed of a bicycle rim; Fig. Figure 4 is a lateral cross-sectional view of an embodiment of a pressure measuring device which is arranged at least partially between a spoke bed and a tire mounting bed of a bicycle rim; Fig. Figure 5 is a lateral cross-sectional view of an embodiment of a pressure measuring device which is arranged at least partially between a spoke bed and a tire mounting bed of a bicycle rim; Fig. Figure 6 is a lateral cross-sectional view of an embodiment of a pressure measuring device which is arranged at least partially between a spoke bed and a tire mounting bed of a bicycle rim; Fig. Figure 7 is a lateral cross-sectional view of an embodiment of a pressure measuring device which is arranged at least partially between a spoke bed and a tire mounting bed of a bicycle rim; Fig. Figure 8 is a partially perspective sectional view of a bicycle wheel rim with a pressure measuring device and a cover in an installed state; Fig. Figure 9 is a schematic diagram of an embodiment of a pressure measuring device; Fig. Figure 10 is a side exploded view of a bicycle wheel rim and a pressure measuring device; Fig. Figure 11 is a perspective view of a housing for a pressure measuring device; Fig. Figure 12 is a perspective view of a housing for a pressure measuring device. Fig. 11, with a valve and a valve stem in an installed state; Fig. Figure 13 is a halved cross-sectional view of an embodiment of a pressure measuring device; Fig. Figure 14 shows an exploded view of a pressure measuring device. Fig. 13 there; Fig. Figure 15 is a top view of a bicycle wheel rim that includes a pressure measuring device; Fig. Figure 16 is a side view of a bicycle wheel rim with a pressure measuring device; Fig. Figure 17 shows a halved cross-sectional view of a bicycle wheel rim and a pressure measuring device. Fig. 16 dar; Fig. Figure 18 is a side view of a bicycle wheel rim and a wheel assembly with a pressure measuring device; Fig. Figure 19 is a perspective view of a pressure measuring device. Fig. 18; Fig. Figure 20 is a halved cross-sectional view of the pressure measuring device of Fig. 18; Fig. Figure 21 is a halved cross-sectional view of the pressure measuring device of Fig. 20, which is shown enlarged for clarity; Fig. 22 is the enlarged detail of Fig. 21, which shows the pressure measuring device in a higher pressure state; Fig. Figure 23 shows an exploded view of the pressure measuring device of Fig. 18 dar; Fig. Figure 24 shows a side view of a bicycle wheel rim and a wheel assembly with a pressure measuring device; Fig. Figure 25 is a halved cross-sectional view of the pressure measuring device of Fig. 24; Fig. Figure 26 illustrates an exploded view of the pressure measuring device of Fig. 24; Fig. 27 illustrates possible relative dimensions of a locking device of the pressure measuring device from the Fig. 18-26; Fig. 28 is an isometric view of the locking device of Fig. 27; Fig. Figure 29 shows a side view of a bicycle wheel rim and a wheel assembly with a pressure measuring device; Fig. Figure 30 is a top view of the bicycle wheel rim and wheel assembly with the pressure measuring device. Fig. 29; Fig. Figure 31 is a side view of the pressure measuring device of Fig. 29; Fig. Figure 32 is a sectional view of the pressure measuring device of Fig. 31, which is taken along the section line 32c-32c; Fig. Figure 33 is a sectional view of the pressure measuring device of Fig. 31, which is taken along the section line 33c-33c; Fig. Figure 34 is a sectional view of the pressure measuring device of Fig. 30, which is taken along the section line 34c-34c; Fig. Figure 35 is an exploded view of the pressure measuring device of Fig. 29; Fig. Figure 36 is an exploded view of the pressure measuring device of Fig. 29; Fig. Figure 37A is a perspective view of a component of the pressure measuring device of Fig. 29; Fig. Figure 37B is another perspective view of the component of the pressure measuring device of Fig. 37A; Fig. Figure 38 is a flowchart showing a procedure for measuring pressure in a tire assembly; and Fig. Figure 39 is a block diagram of an embodiment of a pressure measuring device.

[0009] Further aspects and advantages of the embodiments disclosed herein will become apparent from the following detailed description, wherein similar or identical structures have similar or identical reference numerals. DETAILED DESCRIPTION

[0010] A lightweight pressure gauge designed to measure pressure while adjusting or operating a bicycle is advantageous. A bicycle pressure gauge can be designed to meet these needs. Integrating a pressure gauge into a vehicle component can facilitate easier operation, monitoring, and / or maintenance. In particular, on a bicycle, an integrated pressure sensor or a component incorporating a pressure sensor should be lightweight and compact to minimize interference with and resistance while riding the bicycle.Providing a sufficiently small and lightweight pressure measuring device designed to connect to a bicycle's tire assembly can benefit a rider by eliminating the need for a non-integrated pressure gauge and by allowing pressure information to be displayed to the rider while the bicycle is being ridden.

[0011] Additionally, it is possible to design a pressure gauge to connect to a bicycle's tire assembly in such a way that it allows the tire pressure to be adjusted without removing or locking the gauge. In this way, the tire pressure can be adjusted while the gauge is measuring it. A system can be designed to allow the tire pressure to be read while the pressure is being increased or decreased. Similarly, the system could allow a rider to see the tire pressure, which is useful for determining whether damage or a defect has caused the tire pressure to decrease while the bicycle is being ridden.

[0012] Fig. Figure 1 generally illustrates a bicycle 10 of a type of racing bicycle with a pressure gauge 32. The bicycle 10 comprises a frame 12 and a front and a rear wheel 14, 16, which are rotatably attached to the frame 12. The front and rear wheels 14, 16 each comprise a rim 20, a hub 22, and a spoke system 24. The pressure gauge 32 is attached to the front and rear wheels 14, 16, respectively. The hub 22 has an axis “A” that is perpendicular to a plane defined by the rotation of the relevant wheels 14, 16. The rotation of the rear wheel 16 can be generated by a movement of a drive train 13. The use of the reference terms “axial”, “radial”, “circumferential”, “outer”, and “inner” refers to axis A unless otherwise specified. The spoke system 24 comprises a multitude of spokes 26. The spoke system 24 connects the hub 22 to the rim 20.A tire arrangement 28 is attached to the rim 20 of the front and rear wheels 14, 16.

[0013] Fig. Figure 2 generally illustrates the bicycle 10 of a type of off-road bicycle. The same general configuration of the pressure measuring device 32, which is attached to each of the front and rear wheels 14, 16, is shown. While the illustrated bicycle 10 of the Fig. 1 represents a racing bicycle which has a handlebar 30 of a drop bar type, and the depicted bicycle 10 of the Fig. While the present invention represents a mountain bike, it considers any type of bicycle when applying it, including time trial or triathlon bicycles and full or partial suspension mountain bikes. The front and rear wheels 14, 16 of the bicycle can also be configured in various ways, comprising either a tensioned or a compression-resistant spoke system 24, or a unified arrangement of rim 20, hub 22, and spoke system, as in a disc-shaped wheel. The tire arrangement 28 can have various configurations, including a tube-like or stitched type, a wire-bead inner tube type, or a tubeless type.

[0014] Fig. Figure 3 is a side view of an embodiment comprising the pressure measuring device 32, which is arranged at least partially between a spoke bed 34 and a tire assembly bed 36 of the rim 20. The spoke bed 34 is configured to allow the spoke system 24 to be attached to the rim 20. For example, the spoke bed 34 may be configured with one or more recesses to receive a fixed section of the spoke system 24, commonly known as a spoke nipple, for attaching the spoke 26 to the rim 20. The tire assembly bed 36 is configured to radially position the tire assembly 28 by preventing radial inward movement of the tire assembly 28 in an installed state. The rim 20 includes a radially outer tire engagement section 37 configured to engage with the tire assembly 28.The radially outer tire engagement section 37 comprises the most radially outwardly extending section of the rim 20 and can prevent axial outward movement of the tire assembly 28, as is the case with a generally known hook-and-bead installation of a wire bead tire configuration of the tire assembly 28. The valve stem 38 comprises a compressible base 40. The valve stem 38 can be a removable component or configured to be integrated into the tire assembly 28. The valve stem 38 connects to a housing 32 in a sealing manner. The housing 42 comprises a removable power source section 44 and a removable circuit section 46. A valve insert 48, such as a conventional bicycle tire valve insert assembly, is configured to allow pressure adjustment and connects to the housing 42 in a sealing manner.The valve insert 48 is arranged radially inside relative to the spoke bed 34 to allow user access.

[0015] The Fig. Figures 4-7 are a cross-sectional view of the pressure measuring device 32, which is arranged at least partially between the spoke bed 34 and the tire mounting bed 36 of the rim 20. The housing 42 comprises a pressure chamber 50. The valve stem 38 fits into the housing 42 in a sealing manner. This type of seal can be achieved by an interference fit between the compressible base 40 and the housing 42 and / or by the use of a base seal 52 configured to seal between an inner sealing surface width D (not shown) of the housing 42 and an outer sealing width C (not shown) of the valve stem 38. For example, the valve stem 38 can have a threaded stem section 54 that engages threadedly with a threaded pressure chamber section 56 of the pressure chamber 50. The valve insert 48 is connected to the pressure chamber 50 or engages with it in a similar manner.

[0016] The engagement of the valve stem 38 and the valve insert 48 is designed to allow a fluidic connection between the valve stem 38 and the valve insert 48. For example, the threaded engagement of the valve stem 38 and the pressure chamber 50 is designed to allow a fluidic connection through it. This threaded engagement can be designed to allow a fluidic connection through non-sealing mechanical tolerances or by using other fluidic connection techniques such as channels or grooves. Alternatively, the valve stem 38 can be fitted with one or more connection features (not shown) as in Fig. 22 trained.

[0017] A measuring element 58 is in fluidic communication with the pressure chamber 50. In the illustrated embodiment, the measuring element 58 is in fluidic communication with the pressure chamber 50 via a measuring element opening 60. The measuring element opening 60 is shown such that it is arranged along the threaded pressure chamber section 56; however, it could equally well be arranged along a non-threaded section of the pressure chamber 50. For example, the measuring element opening interface 60 can be located radially inside the threaded engagement of the valve stem 38 and the pressure chamber 50, so that a fluidic connection through the threaded engagement is unnecessary to achieve a fluidic connection between the pressure chamber and the measuring element opening interface 60.

[0018] The measuring element 58 is configured to measure the pressure in the pressure chamber 50. The measuring element 58 can be any type of sensor operationally configured to measure the pressure in the pressure chamber 50. The measuring element 58 can be a pressure sensor or an array of sensors. For example, the measuring element 58 could be of the force collector type, such as a piezoresistive, piezoelectric, capacitive, electromagnetic, optical, or potentiometric type. The measuring element 58 could also be of another type, such as a resonant frequency, thermal conductivity, or ionization sensor. The measuring element 58 is installed in the housing 42 with a measuring element seal 62. The measuring element seal 62 is configured to prevent flow past the measuring element 58 in order to maintain the pressure in the pressure chamber.The valve insert 48 can engage with a threaded section of the housing 42 in a sealing manner. The threaded engagement between the valve insert 48 and the housing 42 can be a sealing thread engagement and / or an elastomeric valve insert seal 64 can be used.

[0019] The pressure measuring device 32 can be attached to the rim 20 in various ways. The rim 20 can be provided with a radial access opening 66 located in the tire assembly bed 36. The radial access opening 66 can be designed to accommodate the pressure measuring device 32. The valve insert 48 can be inserted through a valve access opening 68 in the installed state to facilitate user access to the valve insert 48 and thus pressure adjustment. To provide a sufficient circumferential surface area to which the tire assembly can be attached, the radial access opening 66 can be covered.

[0020] Referring to Fig. 4. The radial access opening 66 can be covered with a flexible cover 70 that covers at least a section of the tire assembly bed 36. The flexible cover 70, such as a rim tape or rim strip, can be attached by adhesive or physically limited by the radially outer tire engagement section 37 and the circumference of the rim 20. Additionally, the tire assembly 28 can be configured with a base cover attached to the tire assembly 28, as is common with tube-type or sewn tire assemblies. The valve stem 38 can then be installed in the housing 42. The pressure measuring device 32 is thus secured at a radially outer location by the flexible cover 70, the valve stem 38, and / or the tire assembly 28, and at a radially inner location by the interaction of the housing 42 and / or the valve insert 48 with the valve access opening 68.

[0021] Referring to Fig. 5. The pressure measuring device 32 can be attached to the rim 20 using a mounting plate 72. The mounting plate 72 can be rigid to allow for a more stable attachment of the pressure measuring device 32. The mounting plate 72 can be used in combination with a cover, such as the flexible cover 70, or instead of one. The mounting plate 72 can be configured to connect to the tire mounting bed. By connecting to the tire mounting bed 36, the mounting plate 72 can be held in a fixed position relative to the tire mounting bed 36 when installed. For example, the mounting plate 72 can be configured with an inner plate surface 74, and the tire mounting bed 36 can be configured with an outer bed surface 76, the outer bed surface 76 having a recess 78 with a smaller opening dimension to provide a bearing surface.In this way, the mounting plate 72 can be flush with the tire assembly bed 36, while its smaller opening dimension of the recess 78 restricts further radial inward movement. The mounting plate 72 can also be held in place by adhesive bonding, mechanical fastenings, or by radially acting forces provided by the tire assembly 28.

[0022] Referring to Fig. 6. The rim 20 can also include an internal structure 80. The structure can have radial walls, circumferential walls, and an axial base surface that forms a compartment. The internal structure 80 can be configured to house and / or support the pressure measuring device 32 within the rim 20. The internal structure 80 can be used in combination with or instead of the mounting plate 72 to mount the pressure measuring device 72. For example, if a rigid mounting is desired, this can be achieved by using the internal structure 80 and the flexible cover 70 without the need for the mounting plate 72. The internal structure can be configured to fit the external dimensions of the housing 42 and / or be insulated to limit movement within and / or vibration transmission from the rim 20.

[0023] The Fig. Figures 4-6 each show the tire arrangement 28 with the valve stem 38 as used in tubeless tire arrangements. Referring to Fig. Figure 7 of the tire assembly 28 includes the valve stem 38 as an integral component of a tube 82. The tube 82 can be used in a wire bead tire configuration, similar to tubeless tire assemblies, or it can be used in a tube or sewn configuration. In this case, the compressible base 40 of the valve stem 38 is part of the tube 82. The outermost part of the tire assembly 28 is a tire casing 84. The tire casing 84 can completely enclose the tube 82 and attach to the rim 20 as in a tube or sewn configuration, or otherwise interact with the radially outer tire engagement section 37 of the rim 20 as in a wire bead tire configuration. The pressure gauge 32 can be attached to the rim on its own, or the rim can be provided with an additional structure.For example, the flexible cover 70, the mounting plate 72, the radial access opening 66, the valve access opening 68, the internal structure 80 and / or combinations thereof can be used.

[0024] Fig. Figure 8 is a partial sectional view of the rim 20 with the pressure measuring device 32, which is shown in the overall view, and the mounting plate 72 is shown in cutaways in an installed state. The rim 20 is shown to encompass the pressure measuring device, which is axially displaced between a first sidewall section 19 and a second sidewall section 21 of the rim 20. The mounting plate 72 can be configured to be installed in the radial access opening 66 in only one orientation to prevent improper installation. Alternatively, the mounting plate 72 can be configured to be installed in the radial access opening 66 in various ways to allow for versatile applications.For example, the mounting plate 72 can be configured to be mounted in the radial access opening 66 with rotational symmetry in order to position different configurations of the pressure measuring device 32 with the valve access opening 68. Alternatively, the mounting plate 72 can be available in different configurations to allow a similar radial displacement of the pressure measuring device 32 in variations of the rim 20 with different radial depths.

[0025] Fig. Figure 9 is a schematic representation depicting an embodiment of the pressure measuring device 32. A system volume 95 of the pressure measuring device 32 can be integrated by various fluidic connection components. The tire assembly 28 comprises a tire assembly volume 86. The tire assembly volume 86 is fluidically connected to a valve stem volume 90 of the valve stem 38 via a first shaft opening 88. The valve stem volume 90 is fluidically connected to a pressure chamber volume 94 of the pressure chamber 50 via a second shaft opening 92. A flow path of the fluidic connection can be defined between the first shaft opening 88 and the second shaft opening 92. The flow path can be extended to include the flow between the tire assembly volume 86 and the valve insert 48, including the flow past the valve protrusion 48.

[0026] The pressure chamber 50 is connected to the valve stem 38 via a mechanical connection 96. The mechanical connection 96 can be the threaded pressure chamber section 56, or it can be an alternative connection such as a compression, push-fit, or integral connection. The mechanical connection 96 is configured to allow fluid passage into a mechanical connection volume 98 enclosed within the mechanical connection 96. The mechanical connection 96 can, for example, be a threaded connection with sufficient spacing between the internal and external threads to allow a fluidic connection along the length of a continuous thread. The valve stem 38 can include external threads configured to accommodate the installation of the threaded pressure chamber section 56, which has internal threads to allow such a fluidic connection.Alternatively, the mechanical connection 96 can include a channel (not shown) to allow, for example, a fluidic connection beyond a press fit. In this way, or by another type of mechanical connection 96, the first shaft opening 88 can accommodate a threaded installation of the pressure chamber 50 around a first shaft opening axis 89, such that the pressure chamber 50 has a location in its threaded pressure chamber section 56 coaxial with the first shaft opening axis 89.

[0027] The mechanical connection volume 98 is in fluidic communication with a measuring element chamber volume 100 of a measuring element chamber 102 via the measuring element opening 60. In this way, the measuring element 58 is in fluidic communication with the pressure chamber without interrupting the flow path. The measuring element chamber 102 is attached to the measuring element 58. The measuring element 58 is sealed to the measuring element chamber 102 by means of the measuring element seal 62. The measuring element 58 can be threaded onto the measuring element chamber 102 or alternatively attached, for example, by press fit, adhesive bonding, or integrated mounting. The measuring element 58 comprises the measuring unit 104 in fluidic communication with the measuring element chamber volume 100.

[0028] The measuring unit 104 can include a diaphragm or similar element that seals the remainder of the measuring element 58 against fluidic connection, or sealing materials can be present within the measuring element 58. In another embodiment, no diaphragm is included, and the measuring element 58 is exposed to the fluidic volume. The pressure chamber volume 94 is selectively protected from pressure outside the system volume 95 by the interaction with the valve insert 48 and the valve insert seal 64. The valve insert 48 facilitates pressure adjustment by selective opening and closing. The valve insert 48 can be a pressure-tight valve type, for example, a Presta valve, a check valve type, such as a Schrader valve, or another type of valve. The mechanical connection volume 98 can be sealed against external fluidic connection by the valve stem 38 and the base seal 52.The base seal 52 can be designed to be located in the pressure chamber 50.

[0029] Fig. Figure 10 is a side exploded view of the rim 20 and the pressure gauge 32 in an uninstalled state. As shown, the mounting plate 72 can be used in conjunction with the flexible cover 70. The combination of the mounting plate 72 and the flexible cover 70 serves to support the housing 42 when installed in the rim 20 and to fluidly seal the tire assembly bed 36. The compressible base 40 of the removable valve stem 38 can seal either the mounting plate 72, the flexible cover 70, or a combination of both, to allow the tire assembly volume 86 to function as a closed volume, similar to a tubeless tire system. The base seal 52 can also seal either the mounting plate 72, the flexible cover 70, or a combination of both.The compressible base 40 can also directly seal the base seal 52, alone or in combination with one of the above-mentioned sealing arrangements.

[0030] To enable such sealing arrangements, the compressible base 40 is shown, which has the outer sealing width C, which can be a diameter in a generally cylindrical embodiment of the valve stem 38. The outer sealing width C can be a range of widths in which contact is established between the compressible base 40 and the housing 42 in an installed state. The housing 42 is also configured to accommodate the installation of the valve insert 48. The valve insert 48 can also include a valve insert nut 49 and a valve insert release 51. The valve insert nut 49 is threaded onto the valve insert release 51 and serves to lock the valve insert release 51.When the valve insert nut 49 is withdrawn from a fully removed or locked position, the valve insert release 51 can be pressed to move the valve insert seal 64 and selectively allow a fluidic connection through the valve insert 48 and into or out of the housing 42.

[0031] Fig. Figure 11 is a perspective view of the housing 42 of the pressure measuring device 32. The housing 42 shows the pressure chamber 50 exposed. The pressure chamber 50 further comprises a base sealing surface, which is dimensioned and designed to interact with the base seal 52. The base sealing surface 53 of the pressure chamber 50 is shown with a chamfered configuration adjacent to the threaded pressure chamber section 56. The base sealing surface 53 can be described as having an inner sealing surface width D. The inner sealing surface width describes the maximum forced width of the base seal 52 when it is in an installed state. The threaded pressure chamber section 56 facilitates the mechanical connection 96.In this configuration of the base sealing surface 53, a frustoconical configuration of the base seal 52 can be used to maximize the contact area and minimize the deformation between the base sealing surface 53 and the base seal 52. In this configuration, the inner width D of the sealing surface would be measured at a radially outward-facing point to capture the maximum forced width of the frustoconical configuration of the base seal 52.

[0032] The base sealing surface 53 can also be designed in various ways to accommodate alternative configurations of the base seal 52. For example, the base sealing surface 53 can be concave to accommodate a rounded configuration of the base seal 52 with a larger contact area for the same deformation between the base seal 52 and the base sealing surface 53. In this configuration, the inner sealing surface width D would be measured at a radially inward-facing point relative to the frustoconical configuration described above to capture the maximum forced width of the rounded configuration of the base seal 52. Alternatively, the base seal 52 can also be the compressible base 40 to seal the chamfered configuration shown. This sealing connection allows for a relationship between the outer sealing width C of Fig. 10 and the inner sealing surface width D. For example, the outer sealing width C can be designed to be larger than the inner sealing surface width D in at least one partial area, so that one or both of the compressible base 40 and the base sealing surface 53 must deform to allow the seal installation.

[0033] The removable power source section 44 and the removable circuit section 46 are shown in their installed state. The removable power source section 44 is connected to the removable circuit section 46 via a first removable connection 45. The removable circuit section 46 connects to a body section 43 of the housing 42 via a second removable section connection 47. The installation and removal of the removable power source section 44 and / or the removable circuit section 46 can be facilitated by surface features such as texturing, knurling, or tool-receiving surface features.

[0034] Fig. Figure 12 is a perspective view of the housing 42 for the pressure measuring device 32, as shown in Fig. Figure 11 shows a valve insert 48 and a valve stem 38, which is installed in the housing 42. The installation of the valve stem 38 may or may not include the base seal 52.

[0035] Fig. Figure 13 is a halved cross-sectional view through the housing 42 of the pressure measuring device 32, showing the internal components of the housing 42. The housing 42 comprises the removable power source section 44 and the removable circuit section 46 in an installed state. The removable power source section 44 comprises a power source 106. The power source 106 may be a single unit or comprise several components, such as a pair of button cell batteries. The removable power source section 44 and / or the removable circuit section 46 may be configured to conduct electrical current from the power source 106 to a circuit unit 108. The circuit unit is electrically connected to the sensing element 58. The housing is also shown to include a general annular embodiment of the base seal 52, which has a base seal with an installed inner diameter E.The base seal 52 can also be described as having an installed outer diameter which is limited by the inner width D of the sealing surface.

[0036] Fig. Figure 14 shows a halved cross-sectional exploded view of the housing 42 of the pressure measuring device 32. Fig. Figure 13. The base seal 52 is removable from the housing 42 to allow for replacement or installation. For example, the base seal 52 can have a free outer diameter H of the base seal that is larger than the inner sealing surface width D into which the base seal 52 fits. The free outer diameter of the base seal H can be designed to be larger than the inner sealing surface width D, such that at least one of the base seal 52 and the base seal 53 must deform to allow the seal to be installed.

[0037] The base seal 52 can also be stretched and / or installed on the valve stem 38 prior to installation in the housing 42 to avoid frictional wear that can occur when the valve stem 38 is installed with the base seal 52 in an unstretched state, particularly if the valve stem 38 has a threaded configuration. The base seal 52 can also be described as having a free inner diameter F. For example, the pressure measuring device 32 can be configured such that the free inner diameter F of the base seal is larger than the installed inner diameter E of the base seal to achieve an interference fit between the base seal 52 and the base sealing surface 53 and to facilitate installation of the seal.

[0038] The removable power source section 44 can be configured to connect to the removable circuit section 46, as shown. The removable power source section 44 can have a power source connection section 55 configured to connect to a circuit receiving section 57 of the removable circuit section 46, forming the first removable section 45. The removable circuit section 46 can have a circuit connection section 59 configured to connect to a body receiving section 61 of the body section 53, forming the second removable connection section 47. The connections can be threaded or otherwise provided to facilitate removal and installation.For example, the power source connection section 55 may have external threads configured to engage with internal threads of the circuit receiving section 47, and the circuit connection section 59 may have external threads configured to engage with internal threads of the body receiving section 61. In an installed state, the removable power source section 44 and the removable circuit section 46 comprise the power source 106, the circuit unit 108, and the sensing element 48. To achieve this inclusion, the removable power source section 44 may include a power source section chamber 69 configured to accommodate at least one section of the power source 106, the circuit unit 108, and / or the sensing element 58.

[0039] To facilitate maintenance, the removable power source section 44 can be designed to facilitate the removal of the power source 106 while allowing the circuit unit 108 and the measuring element 58 to remain in their installed state. For example, the removable circuit section 46 can include the measuring element 58 and the circuit unit 108 as permanent installations. The removable circuit section 46 can also include a wireless communication means 120 and can therefore also be referred to as a wireless connection section.

[0040] To facilitate the transmission and / or reception of signals, the removable circuit section 46 can be made of a high-frequency transparent material. For example, the removable circuit section 46 can be made of ceramic, glass, or plastic, or it can be made of an otherwise high-frequency opaque material with cutouts or other configurations to allow high-frequency transparency.

[0041] If either the measuring element 58 or the circuit unit 108 is damaged or otherwise becomes inoperable, the removable circuit section 46, including a pre-installed configuration of the measuring element 58 and the circuit unit 108, can be replaced by using new circuit sections 46 and / or measuring element sections 58. The removable circuit section 46 can also be configured to allow individual replacement of circuit components such as the wireless communication device 120, the measuring element 58, or the circuit unit 108. The removable circuit section 46 can be threaded to the housing section 43 of the housing 42, as shown. The measuring element seal 62 interacts with the housing section 43, the removable circuit section 46, and / or the measuring element 58 in the installed state.

[0042] Fig. Figure 15 is a top view of the rim 20 and the pressure measuring device 32 in an installed state. The radial access opening 66 accommodates the pressure measuring device 32 for installation. The radial access opening 66 includes the recess 78, which has the outer bed surface 76. The recess 78 and the outer bed surface 76 can be configured to accommodate the mounting plate 72. The radially outer tire engagement section 34 of the rim 20 is shown to create the outer boundaries of the tire assembly bed 36 in the radial direction, enabling the installation of the flexible cover 70 and / or the tire assembly 28.

[0043] Fig. Figure 16 is a side view of the rim 20 and the pressure measuring device 32 in an installed state. In this alternative installation, the pressure measuring device 32 is mounted completely radially inward from the spoke bed 34 and outside the rim 20. The housing 42 is placed on the valve stem 38, which projects radially inward from the rim 20. The rest of the arrangement remains largely unchanged. The measuring element 58 is still arranged radially between the tire assembly bed 36 and the valve insert 48, as shown in Figure 16. Fig. Figure 17 shows that neither the tire mounting bed 36 nor any other part of the rim 20 needs to be configured to accommodate the pressure measuring device 32. The valve stem 38 can be lengthened depending on the radial distance between the tire mounting bed 36 and the spoke bed 34 of the rim type 20 used.

[0044] Fig. Figure 17 shows a cross-sectional view through the rim 20 and the pressure measuring device 32 of Fig. Figure 16 shows the tire assembly 28 in a tubeless configuration with the tire casing 84, which is sealed in conjunction with the flexible cover 70. The valve stem 38 is shown in an elongated configuration. Specifically, the compressible base 40 is extended by the length of the valve stem 38, which is encompassed radially between the tire assembly bed 36 and the spoke bed 34. In this way, the compressible base 40 can provide a sealing connection at two locations. First, the compressible base 40 can be used in conjunction with the tire assembly bed 36, the flexible cover 70, and / or the mounting plate 72 (not shown). Alternatively, the compressible base 40 can be used in conjunction with at least one of the base seals 52 and the housing 42.This same arrangement can occur in the inner arrangement shown in the preceding figures, for example with a smaller radial distance between the first and second sealing connection points for the same dimensions of the rim 20.

[0045] The Fig. 18-23 represent an alternative embodiment. The example in the Fig. The pressure measuring device 32 shown in Figures 18-23 differs from the one shown in the Fig. The example shown in Figure 3-17 is distinguished by the fact that the pressure chamber volume 94 is not in fluidic connection with the measuring element 58. The housing 42 further comprises a measuring chamber 63, which has a measuring chamber volume 65. The measuring chamber volume 65 can be sealed against fluidic connection with the pressure chamber volume 94 by a sealing device 124. The sealing device 124 is configured to allow fluidic connection between the pressure chamber volume 94 and the measuring chamber volume 65. To enable such fluidic connection, the sealing device 124 can be elastomeric or otherwise configured to deflect as a result of the pressure difference. The sealing device 124 includes an inner sealing surface 125, which can be configured to be in fluidic contact with the pressure chamber 50. The measuring chamber volume 65 can be a sealed volume containing a pressure-transmitting medium.The pressure-transmitting medium can be a non-compressible fluid. In this way, the measuring element 58 can measure a pressure within the pressure chamber volume 94 by displacing the pressure-transmitting medium. Assuming that a non-compressible fluid is used in this way, the pressure in . Fig. The deflection of the locking device 124 shown in Figure 22 is to be understood as exaggerated for demonstration purposes.

[0046] The locking device 124 can be configured to fit into a locking receiving feature 131 of the housing 42. The locking device 124 can, for example, comprise a locking device latch 130 configured to allow the locking device 124 to be secured relative to the locking receiving feature 131 of the housing 42. The locking device 124 can also be configured to fit onto a base receiving feature 133 of the housing 42. For example, the locking device 124 can comprise a locking device base 127 configured to allow the locking device to be secured relative to the base receiving feature 133 of the housing 42. The locking device base 127 can also be configured to include the base seal 52.

[0047] Referring to the Fig. 21 and Fig. 22 The locking device 124 can be configured to seal with the housing 42, the valve stem 38, and / or the valve insert 48 or an insert adapter 137 in various ways. For example, the locking device 124 can comprise an outer insert seal 136 and an outer stem seal 140 to enable sealing with the housing 42. The outer insert seal 136 can be configured to enable sealing by interacting with the locking receiving feature 131 of the housing 42, and the outer stem seal 140 can be configured to enable sealing by interacting with the base receiving feature 133 of the housing 42.The locking device 124 can also include an inner stem seal 142 on the locking device's inner surface 125 to enable sealing with the valve stem 38, and an inner insert seal 138 on the locking device's inner surface 125 to enable sealing with the valve insert 48 or the insert adapter 130. The insert adapter 137 can be used to allow the removal and installation of the valve insert 48 without directly interfering with the locking device 124. The locking device 124 can also enable sealing with the housing, the valve stem 38, the valve insert 48, and the insert adapter 134 by using adhesives or seals. For example, the locking device 124 can be glued in place in the housing 42, and / or seals can be used to allow fluid to flow through the system volume 95, as is common when using tubeless tire types.The housing 42 can also be designed to be completely spaced away from the locking device 124 in order not to limit the deflection of the locking device 124.

[0048] To accommodate the valve stem 38, the valve insert 48, and / or the housing 42, the locking device 124 can have a hollow cylindrical configuration. The locking device 124 can also have different thicknesses. For example, the locking device 124 can be configured as a flange to allow the fitting of the locking receptacle 131 of the housing 42, with the flange accommodating the locking device locking element 130. The flange configuration of the locking device 124 can also allow the inclusion of the base seal 52 as part of the locking device 124.

[0049] The valve stem 38 is shown to be secured radially to the rim 20 by a fastening element 67. The fastening element 67, also commonly referred to as a lock nut, can be used to create a sealing seat between components such as the compressible base, the flexible seal 70, and the rim 20. The valve stem 38 can also be configured to include at least one connecting feature 126. The connecting feature 126 can be an annular opening, such as the first stem opening 88, in the valve stem 38. The connecting feature 126 can also be configured and dimensioned such that it is not sealed or otherwise blocked by sealing material that may flow through the valve stem 38.The pressure measuring device 32 can also be configured such that the connection feature 126 is arranged at least partially radially outside the valve insert 48 and the insert adapter 137. In this way, the clearance between the connection feature 126 and the valve insert 48 and / or the insert adapter 137 can be adjusted to compensate for the clogging resistance of the sealing material against the size and weight of the pressure measuring device 32.

[0050] The Fig. 24-26 represent an alternative embodiment. The example in the Fig. The pressure measuring device 32 shown in 24-26 differs from the one shown in the Fig. The example shown in Figures 18-23 differs in that the connection feature 126 is not part of the valve stem 38. Instead, the connection feature 126 can be included on a removable connection area 128. The removable connection area 128 can include a removable connection area connection section 132 configured to connect to the valve stem 38. The valve stem 38 can further be configured with a valve stem receiving section 134 configured to receive the removable connection area connection section 132. The removability of the removable connection area connection section 132 can allow the use of various non-specialized types of valve stem 38. For example, one type of valve stem 38 can be supplied with the valve insert 48 installed.The valve insert 48 can be removed from the valve stem 38 and then both the valve insert 48 and the valve stem 38 can be installed as implemented in this embodiment.

[0051] The Fig. 27 and Fig. Figure 28 represents one possible configuration of the locking device 124. Referring to Fig. Figure 27 shows the locking device 124 comprising the locking device base 127 and the locking device latch 130. The locking device base 127 of the locking device 124 can be described as having an inner base width Q, a base end locking device width R, an outer base width S, and a base length U. These dimensions can be configured to provide locking and sealing with other components of the pressure measuring device 32. For example, the base length U can be configured to be larger than a corresponding dimension in the base receiving feature 133 of the housing 42 when the locking device base 127 is in an uncompressed state.Similarly, the base outer width S can be configured to be larger than a corresponding dimension in the base receiving feature 133 of the housing 42 when the locking device base 127 is in an uncompressed state. In each of these ways, the compression of the locking device 124 can enable the locking device base 127 to be fastened or sealed to other components of the pressure measuring device 32.

[0052] The locking device base 127 can also be configured such that the base inner width Q is smaller than the outer sealing width C of the valve stem 38, so that compression of the outer sealing width C or expansion of the base inner width Q can enable sealing between the valve stem 38 and the locking device base 127 as by the inner stem seal 142. The base closure locking device width R can be configured to enable sealing between the locking device base 127 and the base receiving feature 133 by allowing the locking device base 127 to be moved sufficiently radially outward at a point on its base outer width S relative to the first stem opening axis B. In a cylindrical configuration of the locking device 124, each of the above widths can be measured as a diameter.If the locking device base 127 functions as the base seal 52, then, when the locking device 124 is in the uninstalled state, the base outer width S can be the same as the free outer diameter H of the base seal, and the base inner width Q can be the same as the free inner diameter F of the base seal. The locking device latch 130 of the locking device 124 can be described as having a latch inner width W, a latch end locking device width X, a latch outer width Y, and a latch length T. These dimensions can be adjusted to allow locking and sealing with other components of the pressure measuring device 32.For example, the locking length T can be configured to be larger than a corresponding dimension in the locking receptacle 131 of the housing 42 when the locking device 130 is in an uncompressed state. Similarly, the locking outer width Y can be configured to be larger than a corresponding dimension in the locking receptacle 131 of the housing 42 when the locking device 130 is in an uncompressed state. In each of these ways, compression of the locking device 124 can enable the locking device 130 to be fastened or sealed to other components of the pressure measuring device 32.

[0053] The locking device latch 130 can also be configured such that the locking inner width W is smaller than a corresponding dimension of the valve insert 48 or the insert adapter 137, so that an extension of the locking inner width W can enable the seal between the valve insert 48 or the insert adapter 137 and the locking device base 127 as by the inner insert seal 138. The locking device closure width X can be configured to enable the sealing action between the locking device latch 130 and the locking receiving feature 131 by allowing the locking device latch 130 to move sufficiently radially outward at a point on its locking outer width Y relative to the first shaft opening axis B. In a cylindrical configuration of the locking device 124, each of the above widths can be measured as a diameter.

[0054] Fig. Figure 29 is a side view of another embodiment of the pressure measuring device 32. The embodiment shown in Fig. Figure 29 shows a display device 201 attached to the housing. The display device 201 can also be referred to as an embodiment of a user interface 114. The display device 201 can be a visual display device. For example, the display device 201 can be a light-emitting device, such as a light bulb or a light-emitting diode (“LED”). Alternatively, the display device 201 can be operationally configured to provide non-visual cues to a driver. For example, the display device 201 can provide acoustic or haptic feedback to the driver.

[0055] The display device 201 is configured to provide a user with a display corresponding to a state, mode, or detectable change in the pressure measuring device 32. In one embodiment, the display device 201 changes states depending on pressure changes in the tire assembly 28, which are measured by the pressure measuring device. For example, the display device 201 can operate in a predetermined mode that responds to the pressures measured by the measuring element 58.

[0056] In one embodiment, the display device 201 operates in a first display mode when the pressure of the pressure chamber 50 is within a first predetermined pressure range. The first predetermined pressure range can be set to represent the desired tire pressure for a specific application. The first display mode of the display device 201 includes a distinguishable output that a user can associate with the pressure that is within the first predetermined pressure range. For example, a light can operate to indicate the first display mode. In one embodiment, a light of a specific color, such as green, can indicate the pressure being within the first predetermined pressure range. An illuminated embodiment of the display device 201 can likewise indicate the first display mode by means of a frequency or a specific light pattern, for example, by alternating short and long illumination durations.

[0057] The display device 201 can be configured to operate in a second display mode when the pressure of the pressure chamber 50 is outside the first predetermined pressure range. The second display mode of the display device 201 can be configured similarly to the first display mode.

[0058] For example, a light can be used to indicate the second display mode. In one embodiment, a light of a specific color, such as red, can indicate the pressure that lies outside the first predetermined pressure range. Similarly, in another embodiment, the display device 201 can indicate the second display mode by means of a frequency or a specific light pattern, such as a long or constant illumination duration.

[0059] The display device 201 can be configured to operate in a third display mode when the pressure of the pressure chamber 50 is outside a second predetermined pressure range. The second predetermined pressure range can be larger than the first predetermined pressure range. For example, the first predetermined pressure range can represent the predetermined range of a rider's most efficient pressures, while the second predetermined pressure range can represent upper and lower safe limits as defined by component constraints such as tire bead strength and squash flat resistance.

[0060] The third display mode of the display device 201 can be configured similarly to the first and second display modes. For example, a light can be used to indicate the third display mode. In one embodiment, a light of a specific color, such as red, can indicate pressure outside the first predetermined range. Similarly, in another embodiment, the display device 201 can indicate the second display mode by means of a frequency or a specific light pattern, such as a long or constant illumination duration. The third display mode of the display device 201 can alternatively or additionally include an audible warning of a potentially hazardous driving situation.

[0061] The predetermined pressure ranges can be adjustable. For example, different embodiments of the pressure measuring device 32 can be developed for different road and off-road configurations of the bicycle 10. In one embodiment, the user can define the limits of the predetermined pressure ranges. For example, the user can operate a component of the pressure measuring device 32 to adjust the limits of the predetermined pressure ranges. Alternatively, the user can operate a connected device, such as a computer or a smart device, to adjust the predetermined pressure ranges. The pressure measuring device 32 can be configured with limits of user adjustability.For example, the pressure measuring device 32 may require that the second predetermined pressure range be greater than the first predetermined pressure range by a predetermined span and / or that the limits of the predetermined pressure ranges do not exceed the safe high-pressure limits and do not fall below the safe low-pressure limits.

[0062] The display modes of the display device 201 can be continuous or intermittent. For example, the display device 201 can operate only at certain times. In one embodiment, the display device 201 operates for a limited time, responding to a sensor 121 that indicates the movement of the bicycle 10. Alternatively, the display device 201 can remain operational for the duration of the bicycle's operation as detected by the sensor 122. In such an embodiment, it may be advantageous to use a low-power configuration of the display device 201, for example, as in an embodiment of a driverless solid-state lighting system.

[0063] The embodiment of the Fig. Figure 29 also shows a housing projection 202. The housing projection 202 can facilitate the installation or maintenance of the housing 242. For example, the housing projection 202 can be dimensioned and designed to allow the injection of a fluid into the housing 242 and / or a valve device 205.

[0064] The valve device 205 is configured to enable the fluidic connection from the tire assembly 28 to the measuring element 258. The valve device 205 may incorporate features from earlier embodiments of the valve stem 38, the removable connecting section 128, the housing 42, and / or other related components. The valve device 205 is shown with a valve device mounting section 209 extending into the rim 20. In one embodiment, the valve device mounting section 209 is secured to the rim by means of a fastening element 267 and interacts with the valve stem 38 inside the rim 20. Alternatively, the valve stem 38 can be secured to the outside of the rim by means of a fastening element 267, for example, as described above with regard to the sealing seat between the components.The fastening element 260 can also be used to anchor and / or support the components. For example, the fastening element 267 can secure the valve assembly 205 to the rim 20 and limit the movement of the pressure measuring device 32.

[0065] The embodiment, which in Fig. Figure 29 includes features that relate to features in previously described embodiments. For example, a removable power source section 244 is shown attached to a body section 243 of the housing 242. The removable power source section 244 can be threaded for installation or it can be installed by another rotary or linear installation or locking method. For example, the removable power source section 244 can be a snap-fit ​​connection or it can be rotated into a locking position.

[0066] A first axial locking feature 271 is shown above the housing 242, and a second axial locking feature 275 is shown spaced apart from the first axial locking feature 271 and located on an opposite side below the housing 242. The first and second axial locking features 271, 275 can be configured in various ways to align the housing 242 axially along an alignment axis V. For example, the first and second axial locking features 271, 275 can be attached to or removable from the valve assembly 205. In one embodiment, the second axial locking feature 275 is formed as part of the valve assembly 205, and the first axial locking feature 271 can be threaded around the alignment axis V onto a threaded valve assembly section 207 of the valve assembly 205.

[0067] Fig. Figure 30 shows a top view of the embodiment, which is described in Fig. 29 is shown. The view in Fig. Figure 30 shows how the body section 243 of the pressure measuring device 32 can be aligned with the rim 20. A specific alignment of the body section 243 can enable lower air resistance and / or less interference with other components of the bicycle 10. For example, a targeted alignment of the body section 243 can prevent or stop the pressure measuring device 32 from touching the frame 12 of the bicycle 10 during operation.

[0068] Fig. Figure 31 shows a side view of the embodiment of the pressure measuring device 32, which is described in Fig. 29 is shown, detached from the tire arrangement 28. Fig. Figure 31 shows the valve device mounting section 209 as one that has a valve device mounting section seal 211. The valve device mounting section seal 211 can be configured to interact with the valve stem 38, for example, the valve stem receiving section 134 as described above. Alternatively, the valve device mounting section seal 211 can be configured to seal the rim 20 or other components, as described with respect to the compressible base 40. The valve device mounting section seal 211 can be compressible to form a seal, it can be configured to compress the valve stem 38, it can include an additional sealing feature (not shown), and / or it can use an adhesive or a mechanical sealant.The interaction of the valve device mounting section seal 211 and the valve stem receiving section 134 can be configured to allow tightening or loosening of a threaded interaction while maintaining a sealing interaction between them. In one embodiment, rotations of up to twenty (20) degrees around the alignment axis V, clockwise and / or counterclockwise, are permitted while maintaining a sealing interaction. This variable sealing arrangement can be achieved with elastomeric and / or multiple sealing devices and can allow fine adjustment of the housing 242 alignment.

[0069] Fig. Figure 32 is a sectional view of the embodiment of the pressure measuring device 32, which is described in Fig. Figure 31 shows the section taken along section line 32c-32c. The internal structure of the pressure measuring device 32 may share features of previously described embodiments and may include various differences. For example, the removable power source section 42 may be rotatably secured to include a power source 206. A power source seal 245 may be included to seal the interior of the pressure measuring device. A power source connection section 255 may be provided to secure the removable power source section 244 to the housing 242.

[0070] A housing support structure 251 can be provided. The housing support structure 251 can increase the rigidity of the housing 242. For example, the housing support structure 251 can support, locate, and / or position components within the housing 242 on one or more surfaces. In one embodiment, the housing support structure 251 locates a circuit unit 208 within the housing 241. The housing support structure can also support and / or locate a measuring element 258 within the housing 262.

[0071] The support for the circuit unit 208 can be configured to provide stiffness and / or isolation. For example, the housing support structure 251 can be configured to allow controlled and / or damped movement of the circuit unit 208 and / or other components within the housing 242. The housing support structure 251 can include elastomeric and / or adhesive components. The circuit unit 208 can be designed and dimensioned to fit the contours of the housing 242. For example, the circuit unit can be non-rectangular and may include one or more curved sections.

[0072] Fig. Figure 32 shows a power source contact 247 for transferring energy from the power source 206. The power source contact 247 is electrically connected to the power source 206 and the circuit unit 208. The power source contact 247 can be a single contact or it can be a plurality of contacts. For example, the power source contact 247 can be a pair of negative and positive contacts, or it can be a single positive contact, with the housing 242 or another component providing a common basis for completing the circuit.

[0073] The housing projection 203 is shown sealed with a housing projection sealing element 213. The housing projection sealing element 213 can be threaded into the housing projection 203, as shown, or it can be adhesively attached, pressed in, or installed by other suitable methods. In one embodiment, the housing projection sealing element 213 is made of an epoxy resin. For example, the housing projection sealing element 213 can be an adhesive and / or a structural compound that is injected into the housing projection 203 and cured to seal the measuring element path 299. The housing projection sealing element 213 can provide a seal for the interior of the housing 242 and can be used to retain fluids within the housing 242.

[0074] The housing projection 203 provides an opening to a measuring element path 299, and the housing projection sealing element 213 enables the sealing of the measuring element path 299. The measuring element path 299 enables the fluidic connection between a pressure chamber 250 (as in Fig. (Figure 34) and the measuring element 258. The measuring element path 299 can provide a fluidic connection between them, or it can provide only a fluidic connection. For example, a locking device such as that used in the embodiments described above can be employed. Additionally or alternatively, the measuring element path 299 can include a relatively high-density fluid. The relatively high-density fluid can be selected or configured for operation with a relatively low-density fluid, such as atmospheric air, nitrogen, or other fluids used to inflate the tire assembly 28. For example, the measuring element path 299 can include lubricants installed by the installation of the housing projection sealing element 213 upstream of the housing projection 203.Limiting the fluidic connection between the tire assembly 28 and the measuring element 258 can protect the measuring element 258 from adhesive contents of the tire assembly 28, such as tire sealant. For example, selective fluidic connection can protect the measuring element 258 from impairment and / or blockage by fluids with relatively low densities, such as atmospheric air or nitrogen, but not by fluids with relatively high densities, such as tire sealant fluids.

[0075] The measuring element 258 can include a structure that facilitates its operation. For example, the measuring element 258 can include a measuring element projection 259. The measuring element projection 259 can include functional elements of the measuring element 258 and / or facilitate the fluidic connection of the measuring element 258 to the measuring element path 299. For example, the measuring element projection 259 can accommodate a diaphragm configuration of a capacitive pressure sensor.

[0076] The measuring element projection 259 can be secured to the measuring element 258 or can be secured to other arrangements or arranged adjacent to it. The measuring element 258 and / or the measuring element projection 259 can interact with one or more other components to seal internal sections of the housing against pressure and / or fluidic connection with the tire arrangement 28 and / or the external environment. A measuring element seal 262 can be provided. In one embodiment, the measuring element seal 262 forms a seal with the housing 242, the measuring element projection 259, and / or the measuring element 258. The measuring element seal 262 can be an elastomeric seal, such as an O-ring, an adhesive bond, and / or a substantially non-compressible sealing configuration.

[0077] Fig. Figure 33 is a sectional view of the embodiment of the pressure measuring device 32, which is shown in Fig. Figure 31 is shown, taken along the intersection line 33c-33c. Fig. Figure 33 shows alignment features of the pressure measuring device 32. The alignment features can be included on various components of the pressure measuring device 32. For example, the valve device 205 can include a valve device alignment feature 217 and / or the housing can include a housing alignment feature 219. In one embodiment, the valve device alignment feature 217 and the housing alignment feature 219 are dimensioned and configured to interact with each other. For example, the housing alignment feature 219 can be configured to establish a relative position with the valve device alignment feature 217 about the alignment axis V. The alignment features 217, 219 can be notched, wedged, or otherwise dimensioned and configured to establish an alignment between the housing 242 and the valve device 205.

[0078] Fig. Figure 34 is a sectional view of the embodiment of the pressure measuring device 32, which is shown in Fig. Figure 30 is shown, taken along the intersection line 34c-34c. Fig. Figure 34 represents the pressure chamber 250, which is arranged between the first seal 252 and the second seal 253 of the valve assembly. The pressure chamber 52 can be configured for fluidic communication with a locking device or a dense fluid, which has been discussed above with reference to this embodiment and previously described embodiments. The pressure chamber 250 can also be an atmospheric chamber containing contents similar to the tire assembly 28 in relation to the relative volumes between them. As shown, the pressure chamber 250 is connected to the measuring element 258. For example, the pressure chamber 250 can be in fluidic communication with the measuring element 208 through the measuring element path 299 and the measuring element projection 259.

[0079] Fig. Figure 35 is an exploded view of the embodiment of the pressure measuring device 32 of Fig. 29. The valve device 205 is shown to include a sealed section 221 of the valve device, which is arranged between the first seal 252 of the valve device and the second seal 253 of the valve device. The sealed section 221 of the valve device can form sections of the pressure chamber 250. The sealed section 221 of the valve device is shown to include a first connecting opening 215 in connection with the tire assembly 28. In one embodiment, the first connecting opening 215 of the valve device is in fluidic communication with the tire assembly 28. Alternatively, the first connecting opening 215 of the valve device can be separated from the fluidic connection with the tire assembly by a pressure transmission locking device, as explained with reference to the embodiments described above.

[0080] The housing 242 is shown secured to the valve assembly 205 by the first axial locking feature 275. In one embodiment, the first axial locking feature 275 locates the housing 242 on the second axial locking feature by means of a threaded attachment to the threaded valve assembly section 207. To facilitate installation, the first axial locking feature 275 can comprise a locking feature thread 270 configured to engage in the threaded valve assembly section 207 and / or a locking feature installation section 272 configured to allow manual or machine installation. In one embodiment, the locking feature installation section 272 is a knurling formed in the first axial locking feature.

[0081] The housing 242 can include a housing bore 227. For example, the housing bore 227 can be a section of the housing 242 configured to receive the valve device 205. The housing bore 227 can also include the housing alignment feature 219. For example, the housing bore 227 can include a serrated housing section 220 dimensioned and configured to interact with a notched valve section 223. An external sealing element 273, such as that found, for example, in Fig. Figure 34 shows that the outer sealing element 273 can be included to seal the housing bore 227. This outer sealing element can be a secondary seal of the pressure chamber 250 below the second seal 253 of the valve assembly, or alternatively, it can be a primary seal of the pressure chamber 250.

[0082] The valve device 205 can include a valve device installation feature 225. In one embodiment, the valve device installation feature 225 is configured to accommodate a tool for securing the valve device 205 to another component, such as the valve stem 38. The valve device installation feature 225 can also be configured for tool-free installation, for example, with texturing or knurling. As shown, the valve device installation feature 225 is covered by the housing 242 when the valve device 32 is in an installed state. However, the valve device installation feature 225 can be positioned outside the housing 242 for adjustment while the valve device 32 is in the installed state.

[0083] Fig. Figure 36 is another exploded view of the embodiment of the valve device 32 of Fig. 29. Fig. Figure 36 shows a second connecting opening 216 of the valve device in conjunction with the first connecting opening 215 of the valve device. As described above, the connection between the tire assembly 28 and the pressure chamber 250 can be achieved in various ways through the connecting openings 215, 216 of the valve device. For example, the valve device 215 can be dimensioned and designed such that it allows an unimpeded fluidic connection between the first connecting opening 215 of the valve device and the second connecting opening 216 of the valve device.

[0084] Fig. Figure 36 also shows the housing 242, which has a circuit section 246. The circuit section 246 may be removable or it may be designed for permanent installation, such as with certain adhesives or bonding techniques. The circuit section 246 is shown to include a circuit section fastener 239, which is configured for installation with a body fastener 241 of the housing 242. The fasteners 239, 241 can provide a sealing interaction between the circuit section 246 and the body section 243.

[0085] Fig. Figure 37A shows a first circuit board surface 295 of the circuit unit 208. The display device 201 is shown arranged on the first circuit board surface 295. In one embodiment, the display device 201 is an LED, as described above. The display device 201 can be arranged partially outside the housing 242. For example, the display device 201 can include a lens made of a translucent or transparent material that forms a section of the housing 242. The housing 242 can also be configured to allow the operation of an embodiment of the display device 201 that is arranged entirely within the housing 242. For example, the housing 242 can be partially or completely transparent or translucent to allow the display device 201 to be read.

[0086] The measuring element 258 can be configured with various structures, for example, configurations of measuring components, which were explained above with reference to previously described embodiments. The measuring element 258, which is in Fig. Figure 37A shows the measuring element projection 259. The measuring element projection 259 can have a hollow configuration, for example to encompass a membrane, so that the measuring element path 299 continues into the measuring element projection.

[0087] Fig. Figure 37A also represents the power source contact 247, which is located on the first circuit board surface 295. The power source contact 247 can be flexible to accommodate movement of the power source 206 and / or variations in the size of the power source 206. The power source contact 247 can bias the power source 206 against the removable power source section 244. This biasing can facilitate the installation and removal of the power source 206.

[0088] Fig. Figure 37B shows the measuring element 258, which is arranged on a second circuit board surface 293 opposite the first circuit board surface 295. The measuring element 258 can extend through the circuit unit 208, from the first circuit board surface 295 to the second circuit board surface 293. The measuring element 258 can be supported by a measuring element support structure 297, as shown in Fig. Figure 37A shows the measuring element support structure 297. This structure can be used to reinforce the circuit unit 208 against forces from the tire assembly 28, to improve the sealing around the measuring element 258 and / or to increase the stiffness of the measuring element 258.

[0089] The circuit unit 208 may have only one side on which associated components are arranged. For example, the circuit unit 208 may be attached to an inner wall of the housing 242 or may form a wall therein. The circuit unit 208 may be rigid or flexible and may be configured to isolate the measuring element 258 and / or other components from vibration or shock, as described above.

[0090] Fig. Figure 37B shows a processor 210 arranged on the second circuit board surface 293. The processor 210 can be configured as described above and below. For example, the processor 210 can be configured to control one or more of the wireless communication means 120, the power source 206, the measuring element 258, and the display device 201. In one embodiment, the processor 210 is configured to control a measurement frequency of the measuring element 258. The measurement frequency represents how often the measuring element 258 takes a pressure reading of the pressure chamber 250. In one embodiment, the measurement frequency is between 0.05 Hertz and 0.15 Hertz. In one embodiment, the power source 206 is arranged on a side of the circuit unit 208 opposite the processor 210, the wireless communication means 120, and / or the measuring element 258.

[0091] The modes of the display device 201 described above can be controlled by the processor 210. For example, the processor 210 can be configured to set time and pressure limits and functions of the first, second, and third display modes. Similarly, the processor can be configured to control the first and second predetermined pressure ranges.

[0092] Fig. Figure 37B also shows the wireless communication means 120. The wireless communication means 120 can be configured as described above and below. In one embodiment, the wireless communication means 120 comprises multiple communication devices. For example, the wireless communication means can include a first transmission radio (not shown) spaced apart from a second transmission radio (not shown). The wireless communication means 120 can be configured to transmit and / or receive signals for the processor 210. The transmission of signals from the wireless communication means 120 can be tunable to optimize battery consumption and system latency. For example, a transmission frequency can be set. In one embodiment, the transmission frequency is between 1 hertz and 4 hertz and can be referred to as a communication frequency.

[0093] Fig. Figure 38 is a flowchart showing a procedure for measuring pressure in the tire assembly 28. As shown in the following paragraphs, the actions can be performed using any combination of the elements shown. Fig. The actions specified in Section 39 are performed by the components listed below, as described below. For example, the following actions can be performed by at least one of the wireless communication device 120, a processor 110, a memory 112, a pressure measuring device interface 116, and the circuit unit 108, as well as by additional or other components. Additional, different, or fewer actions may be provided. For example, action 301 may be omitted. The actions are performed in the sequence shown or in other sequences. The actions can also be repeated.

[0094] The method may include the periodic detection of motion (Action 301). Motion detection may be performed using a motion sensor configured to detect motion, such as an accelerometer and / or a gyroscope. Detection may be performed by one or more sensors 122. Detection may include a determination of motion, for example, by the processor 110 from an input that does not directly measure motion. For example, the processor 110 may determine that motion has occurred from a change in the vicinity of a magnetic field measured by a Hall-effect sensor 122.

[0095] In action 302, it is determined whether the motion reaches a motion threshold, for example, the motion detected in action 301. The motion detected directly or indirectly in action 301 must reach the motion threshold to result in a positive determination in the present action. The motion threshold can be tunable within a range of values ​​relating to the motion of the bicycle 10 or a component thereof. For example, the motion threshold can be a value corresponding to an acceleration value. In one embodiment, only motion detected corresponding to an acceleration greater than 0.003g (~0.0294m / s²) reaches the motion threshold. In this way, this requirement provides a useful method for excluding false or minimal motion information.

[0096] If action 302 detects that the motion detected in action 301 has reached the motion threshold, the procedure enters a wake-up state. If it detects that the motion detected in action 301 has not reached the motion threshold, the detection action (action 303) is repeated periodically. The wake-up state can activate functionality in other components, such as circuit unit 108. Alternatively, the wake-up state can increase the detection rate and thus a possible transmission rate. For example, circuit unit 108 can provide operational power when the threshold is reached.

[0097] The procedure further includes measuring a pressure level with a measuring element (Action 304). The measuring element can be measuring element 58. The measuring element can provide only one component of the measurement and can work in conjunction with other components such as the processor 110 to measure the pressure level.

[0098] The method further comprises transmitting a pressure level signal using the wireless communication means 120, for example, a radio (Action 305). The transmission can be configured for communication with a component of a bicycle, such as the user interface 114, or can be configured to communicate with another device, such as a mobile phone or a global positioning service unit. Enabling the communication can be achieved through a pairing process by which the wireless communication means 120 establishes a connection with such a device.

[0099] In action 306, it is determined whether the motion periodically detected in action 301 has not reached the motion threshold determined in action 302 for an initial time period. The periodic nature of the motion detection provides useful information regarding the condition of a bicycle and / or bicycle components. For example, a determination of a lack of motion detected at the rim 20 of a bicycle may indicate that the bicycle is no longer in use and pressure information is unnecessary. If, as such, it is determined that the detected motion has not reached the motion threshold for the initial time period, the procedure exits the wake-up state but continues to periodically detect motion. Exiting the wake-up state may involve withholding operable power from one or more components of the pressure measuring device 32 for an extended time interval.Limiting the generation of unnecessary pressure information by regulating the operable power supplied to components of the pressure measuring device 32 has the advantage of saving energy from the power source 106. Conversely, if it is determined that the detected movement has reached the movement threshold within the initial time period, the procedure will continue in the wake-up state.

[0100] The procedure can also include pausing the measurement by the measuring element for an initial pause duration (Action 307). Pausing the measurement is a technique for saving energy, for example from the energy source 106, and can completely deactivate the measurement functionality or limit only this functionality to achieve the energy-saving goal. The initial pause duration can be adjusted to achieve a balance between the regularity of the measurement and energy saving.

[0101] In Act 308, it is determined whether a second time interval has elapsed, beginning at the moment the procedure entered the wake-up state. This determination is used to adjust the measurement frequency relative to the amount of time the bicycle has been in use. This determination provides a useful measuring device tool, since pressure adjustments are often made within a limited time of the bicycle's initial movement, i.e., while a rider is inflating a tire immediately after removing the bicycle from storage. If, as such, it is determined that the second time interval has not elapsed, then the procedure will proceed in the wake-up state, which includes pausing the measurement for the first pause time interval (Act 307). However, if it is determined that the second time interval has elapsed, the procedure will proceed further in the wake-up state.

[0102] In action 309, after at least one execution of action 304, it is determined whether a difference in the pressure level measured between subsequent pressure level measurements reaches a pressure level difference threshold. For example, one embodiment provides that a change in subsequent pressure level measurements must be at least 1 lb / in 2(~6.89 kPa) to reach the pressure level difference threshold. These provisions provide a useful tool for adjusting the measurement frequency if sufficiently large pressure changes have occurred. For example, if a significant pressure change has occurred between measurements, this likely means that the pressure level was voluntarily adjusted by the user, or that the tire assembly 28, the rim 20, and / or other components have been damaged. In such a case, it would be advantageous to shift the balance between energy conservation and measurement frequency in favor of the latter. If, as such, it is determined that the difference in the pressure level reaches the pressure level difference threshold, then the procedure continues in the wake-up state, which includes the pause measurement for an initial pause duration (Action 307).If the difference in pressure level measurements does not reach the pressure level difference threshold, there is likely no reason to expect damage or a shutdown. It follows that in such a case, where the threshold is not reached, the process continues in the wake-up state.

[0103] If the second pause duration has not elapsed (Action 308) and the pressure level difference threshold is not reached (Action 309), the procedure further comprises pausing the measurement with the measuring element 58 for a second pause duration (Action 310). The second pause duration may be longer, shorter, or equal to the first pause duration. Each of the first and second pause durations may correspond to a sleep mode of the measuring element 58, in which the measuring element does not measure pressure or otherwise enters an energy-saving state. After the second pause duration has elapsed, the procedure may continue in the wake-up state.

[0104] Fig.Figure 39 is a block diagram of an exemplary pressure measuring device 32. The pressure measuring device 32 can be used independently to communicate with and / or control bicycle components or other devices. The pressure measuring device 32 comprises the circuit unit 108, which includes at least one processor 110 and the memory 112. In the illustrated embodiment, the circuit unit 108 also includes the user interface 114, the pressure measuring device interface 116, and the wireless communication means 120. The circuit unit 108 may also include component connections and / or electrically connecting materials embedded in a substrate material. The system also includes at least one measuring element 58 in conjunction with the wireless communication means 120. Additional, different, or fewer components are possible for the pressure measuring device 32.For example, the user interface 114 may not be included in the circuit unit 108 and / or the pressure measuring device 32. Additionally, other sensors 122, such as a wake-up sensor, may be included. In an exemplary embodiment, an accelerometer, a Hall effect sensor, and / or a gyroscopic sensor may be used to trigger the functionality of the pressure measuring device 32. Components may also be combined.

[0105] The processor 110 may comprise a general-purpose processor, a digital signal processor, an application-specific integrated circuit (“ASIC”), a field-programmable gate array (“FPGA”), an analog circuit, a digital circuit, combinations thereof, or other processors now known or later developed. The processor 110 may be a single device or a combination of devices, for example, through joint or parallel processing.

[0106] The circuit unit 108 is operationally configured to interpret a pressure-indicating signal from the measuring element 58 and determine a corresponding pressure. For example, the signal from the measuring element 58 can be transmitted to the processor 110, which can apply a conversion technique from a displacement or other input to a pressure. The pressure values ​​required to produce displacement values ​​measurable by the measuring element 58 can be known from the properties of the measuring element system. For example, these values, or information about these values, can be stored in a memory 112. The measured displacement values ​​can be compared by the processor 110 with these values ​​to determine a pressure measurement within the tire assembly 28.

[0107] The memory 112 can be volatile or non-volatile. The memory 112 can comprise one or more read-only memory (“ROM”), random-access memory (“RAM”), flash memory, electronically erasable program with read-only memory (“EEPROM”), or another type of memory. The memory 112 can be removable from the pressure measuring device 32, such as a secure digital memory card (“SD”). In a particular, non-limiting, exemplary embodiment, a computer-readable medium can comprise a solid-state memory, such as a memory card or other packaging, that accommodates one or more non-volatile read-only memory devices. Furthermore, the computer-readable medium can be RAM or another volatile rewritable memory.Additionally, the computer-readable medium may include a magneto-optical or optical medium, such as a floppy disk or tapes, or another storage device. Accordingly, the disclosure is understood to include one or more computer-readable media and other equivalents and successor media in which data or instructions can be stored.

[0108] Memory 112 is a non-transitory, computer-readable medium and is described as a single medium. However, the term "computer-readable medium" encompasses a single medium or multiple media, such as a centralized or distributed storage structure, and / or associated caches, that are functional to store one or more sets of instructions and other data. The term "computer-readable medium" is also intended to encompass any medium capable of storing, encoding, or transmitting a set of instructions for execution by a processor, or that causes a computer system to execute one or more of the methods or operations disclosed herein.

[0109] In an alternative embodiment, purpose-built hardware implementations, such as ASICs, programmable logic arrays, and other hardware devices, can be designed to implement one or more of the methods described herein. Applications incorporating the devices and systems of various embodiments can encompass a wide variety of electronic and computer systems. One or more embodiments described herein can employ functions that utilize two or more specific interconnected hardware modules or devices with appropriate control and data signals that can be communicated between and through the modules or as sections of an ASIC.

[0110] Accordingly, the present system includes software, firmware, and hardware implementations.

[0111] The Energy Source 106 is a portable power source. The power source can include the generation of electrical energy, for example, using a mechanical energy generator, a fuel cell device, photovoltaic cells, or any other power generation device. The power source can include a battery, such as a device consisting of two or more electrochemical cells that convert stored chemical energy into electrical energy. The Energy Source 106 can include a combination of multiple batteries or other power supply devices. It can use specially adapted or configured battery types or standard battery types such as CR 1025, CR 2016, and / or CR 2032.

[0112] The wireless communication device 120 provides data and / or signal communication from the pressure measuring device 32 to another component of the bicycle or an external device, such as a mobile phone or other computer device. The wireless communication device 120 communicates the data by using a functional connection. A functional connection can be one in which signals, physical communication, and / or logical communication can be sent and / or received. A functional connection can include a physical interface, an electrical interface, and / or a data interface. The wireless communication device 120 can be configured to communicate wirelessly and, as such, includes one or more antennas 121. The antenna 121 can be integrated into the wireless communication device 120 or can be a separate component.The wireless communication means 120 provides wireless communication in any format now known or subsequently developed. Although the present description outlines components and functions that may be employed in certain embodiments with reference to specific standards and protocols, the invention is not limited to such standards and protocols. For example, standards for the Internet and other packet-switched network transmissions (e.g., TCP / IP, UDP / IP, HTML, HTTP, or HTTPS) represent prior art. Such standards are periodically replaced by faster or more efficient equivalents that have essentially the same functionality. Bluetooth® or ANT+™ standards may be used equally or alternatively. Accordingly, replacement standards and protocols that have the same or similar functionality to those disclosed herein are considered equivalent.In one embodiment, the wireless communication means 120 can be configured to transmit a signal indicating a pressure determined by an input to the measuring element 58. Furthermore, the set pressure can be transmitted wirelessly.

[0113] The pressure measuring device interface 116 provides data and / or signal communication from one or more measuring elements 58 to the circuit unit 108. The interface 116 communicates using wired and / or wireless communication technologies. For example, the interface 116 can communicate with the measuring element(s) 58 using a system bus or other communication technology. The pressure measuring device interface 116 may include additional electrical and / or electronic components, such as an additional processor and / or memory for acquiring, communicating with, and / or otherwise processing signals from the measuring element 58.

[0114] The Wake-Up Sensor 122 provides direct or indirect motion detection. It can detect motion through sound, optical, radio, or microwave signals. Alternatively, it can detect movement of the bicycle 10 or a component thereof using a Hall effect sensor, a reed switch, an accelerometer, or another sensor that provides relative position sensing or motion indication.

[0115] The wake-up sensor 122 can be described as a motion element. As above, a motion element can be used to directly detect movement of the bicycle 10, for example, through the interaction of a reed switch or a Hall effect sensor passing through a magnetic field. Alternatively, the wake-up sensor 122 can detect movement indirectly. For example, the wake-up sensor 122 can respond to pressure changes measured by the deflection of the tire assembly 28 during operation of the bicycle 10.

[0116] The user interface 114 can be one or more buttons, keypads, keyboards, mice, styluses, trackballs, rocker switches, touchpads, speech recognition circuits, or any other device or component for transmitting data between a user and the pressure measuring device 32. For example, the user interface 114 can include the features and / or functions of the display device 201 described above. The user interface 114 can be a touchscreen, which may be capacitive or resistive. The user interface 114 can include a liquid crystal display (“LCD”), an LED, an LED screen, a thin-film transistor display, or any other type of display. The user interface 114 can also include audio functions or speakers.

[0117] In one embodiment, the user interface 114 includes an LED display. The LED display illuminates to indicate the input of commands or other actions of the pressure measuring device 32. The LED display can operate as a display device 201 to, for example, show a user pressure data, as described above.

[0118] The wireless communication device is designed to send and / or receive data such as control signals and / or commands to and / or from bicycle components. The wireless communication device 120 communicates the data using a functional connection. A functional connection can be one in which signals, physical communication, and / or logical communication can be sent and / or received.

[0119] In one embodiment, a rim is provided for a bicycle wheel. The rim comprises a tire mounting bed, a valve arranged radially inward from the tire mounting bed relative to the hub axis, and a measuring element arranged radially between the tire mounting bed and the valve relative to the hub axis. The rim is further configured to accommodate the installation of a tire assembly radially outward from the tire mounting bed relative to the hub axis, and the measuring element is configured to measure pressure within the tire assembly. The rim may optionally further comprise a first sidewall and a second sidewall spaced apart from the first sidewall, the first and second sidewalls extending between the tire mounting bed and a spoke bed of the rim.

[0120] The measuring element can be arranged between the first and second sidewalls. In one embodiment, the measuring element can be arranged radially between the tire mounting bed and the spoke bed relative to the hub axis.

[0121] In one embodiment, the tire mounting bed includes an access opening. The access opening can be configured to allow removal of the measuring element. The rim can further include a cover configured to cover the access opening. In one embodiment, the access opening includes a receiving surface configured to locate the cover in a radial direction relative to the hub axis when the cover is in an installed state. The cover can locate the measuring element in both the radial and axial directions relative to the hub axis when the cover is in an installed state.

[0122] In one embodiment, the rim further comprises a valve designed to control flow into the tire assembly. The valve can optionally be arranged radially inward from a spoke bed relative to the hub axis.

[0123] In one embodiment, a pressure measuring device for a bicycle is provided. The pressure measuring device comprises a pressure chamber. The pressure chamber may also include a valve arranged in a first opening of the pressure chamber, the valve being configured to allow the adjustment of a pressure in the pressure chamber. The pressure measuring device may also include a measuring element operationally configured to measure the pressure during the pressure adjustment. The pressure measuring device may optionally include a second opening of the pressure chamber to allow the fluidic connection between the pressure chamber and a tire assembly. The measuring element may be arranged between the first and second openings.

[0124] In one embodiment, a pressure measuring device for a bicycle is provided. The pressure measuring device can comprise a housing that includes a housing alignment feature, a pressure chamber arranged within the housing, and a valve assembly that extends through the housing and is in fluidic communication with the pressure chamber and with a tire assembly. The valve assembly can include a valve assembly alignment feature configured to interact with the housing alignment feature to fix a rotational position of the housing relative to the valve assembly about an alignment axis. A sensing element can be arranged within the housing. The sensing element can be configured to measure the pressure of the pressure chamber.

[0125] In this embodiment, the alignment feature of the valve device comprises a threaded valve device section, and the alignment feature of the housing comprises a housing bore configured to receive the threaded valve device section axially along the alignment axis.

[0126] In this embodiment, the housing alignment feature further comprises a slotted housing section configured to interact with a notched valve section of the valve device's alignment feature to fix the housing's rotational position relative to the valve device about the alignment axis. The valve device may further comprise a valve device mounting section configured to form a sealing interface with a valve stem of the tire assembly. The valve device mounting section may be configured to engage threadably with the valve stem of the tire assembly about the alignment axis.In one example, the valve device mounting section can be configured to maintain a sealing interaction with the valve stem up to twenty (20) degrees of rotation of the valve device mounting section relative to the valve stem around the alignment axis.

[0127] In this embodiment, the valve device can comprise a connecting opening and a first seal configured to engage in the housing bore that is axially spaced from the connecting opening. The valve device can also comprise a second seal configured to engage in the housing bore that is axially spaced from the connecting opening, such that the connecting opening is arranged axially between the first and second seals.

[0128] In one embodiment, the measuring element is configured to periodically measure the pressure of the pressure chamber at a measurement frequency. The pressure measuring device may include a wireless communication means arranged within the housing. The pressure measuring device may also include a processor arranged within the housing, configured to control the wireless communication means, the measuring element, and / or a power source that supplies energy to the processor, the wireless communication means, and the measuring element. The wireless communication means may be configured to periodically transmit a pressure signal indicating the pressure of the pressure chamber at a communication frequency. For example, the measurement frequency may be between 0.05 Hz and 0.15 Hz, and the communication frequency may be between 1 Hz and 4 Hz.In another example, the measurement frequency can be between 0.05 Hertz and 0.15 Hertz, and the communication frequency can be between 1 Hertz and 4 Hertz.

[0129] In this embodiment, the pressure measuring device may include a visual display device. The visual display device may be configured to operate in a first display mode when the pressure of the pressure chamber is within a first predetermined pressure range, and to operate in a second display mode when the pressure of the pressure chamber is outside the first predetermined pressure range.

[0130] The pressure measuring device may include a moving element arranged in the housing, wherein the moving element is configured to change a measuring element operating mode of the measuring element.

[0131] In one embodiment, a pressure measuring device for a bicycle is provided. The pressure measuring device comprises a pressure chamber in fluidic connection with a tire assembly and a measuring element configured to measure the pressure of the pressure chamber. The pressure measuring device may also include a wireless communication means configured to transmit a pressure signal indicating the pressure of the pressure chamber, and / or a display device attached to the tire assembly. The display device may be configured to provide a perceptible indication of the pressure of the pressure chamber, operating in a first display mode when the pressure of the pressure chamber is within a first predetermined pressure range, and operating in a second display mode when the pressure of the pressure chamber is outside the first predetermined pressure range.

[0132] The pressure measuring device may include a housing. The housing may include any or all of the measuring element, the wireless communication means, and the display device.

[0133] The display device may be configured to operate in a third display mode when the pressure of the pressure chamber is outside a second predetermined pressure range that is greater than the first predetermined pressure range.

[0134] The housing can include a power source. The power source can supply power to any or all of the measuring element, wireless communication device, and display device.

[0135] The display device may be partially located outside the housing.

[0136] The pressure measuring device can comprise a first alignment feature arranged relative to the tire assembly and a second alignment feature arranged relative to the housing. The first alignment feature can be configured to engage with the second alignment feature to align the housing relative to the tire assembly. The alignment can be performed about an alignment axis. The first and second alignment features can have slotted configurations and engage along the alignment axis. In accordance with various embodiments of the present disclosure, the methods described herein can be carried out using software programs executable by a computer system, such as the circuit unit 108.Furthermore, in an exemplary, non-restrictive embodiment, implementations may include distributed processing, component / object-distributed processing, and / or parallel processing. Alternatively, the processing of a virtual computer system may be structured such that one or more of the methods or functions described herein are implemented.

[0137] A computer program (also known as a program, software, software application, script, or code) can be written in any form of programming language, including compiled or interpreted languages, and it can be provided in any form, including as a standalone program or as a module, component, subroutine, or other unit suitable for use in a computer environment. A computer program does not necessarily correspond to a file in a file system. A program may be stored in a section of a file that includes other programs or data (for example, one or more scripts stored in a markup document), in a single file for the program in question, or in several coordinated files (for example, files that store one or more modules, subroutines, or pieces of code).A computer program can be used to run on one computer or on multiple computers located at one site or distributed across multiple sites and connected via a communication network.

[0138] The processes and logic flows described in this specification can be executed by one or more programmable processors, which run one or more computer programs to perform functions by manipulating input data and producing an output. The processes and logic flows can also be executed by a dedicated logic circuit, such as an FPGA or an ASIC.

[0139] As used in this application, the term “circuit” or “circuit” refers to all of the following: (a) purely hardware-based circuit implementations (such as implementations in purely analog and / or digital circuits) and (b) combinations of circuits and software (and / or firmware), such as (where applicable): (i) a combination of one or more processors or (ii) sections of one or more processors / software (including one or more digital signal processors, software and one or more memories working together to cause a device, such as a mobile phone or a server, to perform various functions) and (c) circuits, such as one or more microprocessors or a section of one or more microprocessors, which require software or firmware to operate, even if the software or firmware is not physically present.

[0140] This definition of "circuit" applies to all uses of this term in this application, including in any claims. As a further example of how it is used in this application, the term "circuit" would also include an implementation of just one processor (or multiple processors) or a section of a processor and its (or its) accompanying software and / or firmware, as well as other electronic components. For example, the term "circuit" would also include, if applicable to the particular claim element, an integrated baseband circuit or an integrated application circuit for a mobile computing device, or a similarly integrated circuit in a server, a cellular networking device, or other network.

[0141] Processors suitable for executing a computer program include, for example, both general-purpose and specialized microprocessors, and any one or more processors of any type of digital computer. Generally, a processor receives instructions and data from read-only memory or random-access memory, or both. The essential elements of a computer are a processor for executing instructions and one or more storage devices for storing instructions and data. Generally, a computer includes one or more mass storage devices for storing data, such as magnetic, magneto-optical, or optical disks, or is operationally coupled to receive and / or transmit data to them. However, a computer does not necessarily have to have such devices.Furthermore, a computer can be embedded in another device, such as a mobile phone, a personal digital assistant (“PDA”), a portable audio player, a global positioning system receiver (“GPS”), or the pressure measuring device 32, to name just a few. Computer-readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media, and storage devices, including, for example, semiconductor memory devices such as EPROM, EEPROM, and flash memory devices; magnetic disks such as internal hard disks or removable media; magneto-optical disks; and CD-ROM and DVD-ROM disks. The processor and memory may be augmented by or integrated into special logic circuitry.

[0142] The illustrations of the embodiments described herein are intended to provide a general understanding of the structure of the various embodiments. They are not intended to be a complete description of all elements and features of devices and systems that use the structures or methods described herein. Many other embodiments may be obvious to a person skilled in the art upon review of the disclosure. Other embodiments may be used and derived from the disclosure, so that structural and logical substitutions and modifications may be made without departing from the scope of the disclosure. Furthermore, the illustrations are merely representative and cannot be drawn to scale. Certain proportions within the illustrations may be exaggerated, while other proportions may be minimized.Accordingly, the revelation and the figures should be seen as illustrative and not as restrictive.

[0143] While this description includes many special features, these should not be understood as limitations on the scope of the invention or on what can be claimed, but rather as descriptions of features specific to certain embodiments of the invention. Certain features described in this description in connection with separate embodiments can likewise be implemented in combination in a single embodiment. Conversely, various features described in connection with a single embodiment can also be implemented separately in several embodiments or in any suitable subcombination.Although features above can be described as acting in certain combinations and can even initially be claimed as such, in some cases one or more features from a claimed combination can be extracted from the combination, and the claimed combination can be directed to a subcombination or variation of a subcombination.

[0144] Even if operations and / or actions are depicted in the drawings and described in a specific sequence, this should not be interpreted as requiring these operations to be performed in the indicated sequence or in a specific order, or as requiring all depicted operations to be performed to achieve the desired results. Multitasking and parallel processing can be advantageous under certain circumstances. Furthermore, the separation of different system components in the embodiments described above should not be interpreted as requiring such separation in all embodiments. It should be understood that all described program components and systems can generally be integrated together in a single software product or packaged across multiple software products.

[0145] One or more embodiments of the disclosure may be referred to herein, individually and / or collectively, as the “invention,” solely for convenience and without any intention of voluntarily limiting the scope of this application to any particular invention or inventive concept. Although specific embodiments have been presented and described herein, it should be understood that any subsequent arrangement intended to achieve the same or a similar purpose may replace the specific embodiments shown. This disclosure is intended to cover all subsequent adaptations or variations of different embodiments. Combinations of the aforementioned embodiments or other embodiments not expressly described herein will be obvious to a person skilled in the art upon reading the description.

[0146] The summary of disclosure is provided on the condition that it is not used to interpret or limit the scope or meaning of the claims. Additionally, the preceding detailed description may summarize or describe various features of a single embodiment to simplify the disclosure. This disclosure is not to be interpreted as reflecting the intention that the claimed embodiments require more features than are expressly stated in each claim. Rather, as the following claims demonstrate, the inventive subject matter may be directed to fewer than all the features of any one of the disclosed embodiments. Thus, the following claims are included in the detailed description, each claim defining the separately claimed subject matter.

[0147] The preceding detailed description is intended to be illustrative and not limiting, and it is understood that the following claims, including all equivalents, are intended to define the scope of the invention. The claims are not to be understood as being limited to the sequence or elements described, unless otherwise stated. Therefore, all embodiments that fall within the scope and spirit of the following claims and equivalents are claimed to be the invention.

Claims

[1] Pressure measuring device (32) for a bicycle, wherein the pressure measuring device (32) comprises: a housing (42; 242) which includes a removable power source section (44; 244); a pressure chamber (50; 250), wherein the pressure chamber (50; 250) comprises an inlet, an outlet and a measuring element opening (60), wherein the pressure chamber (50; 250) is designed to allow fluid to pass through it between the inlet and the outlet; a measuring element (58; 258) which is designed to measure a pressure in a measuring chamber (63), wherein the measuring chamber (63) is in fluid communication with the pressure chamber (50; 250) through the measuring element opening (60); an energy source (106; 206) which is arranged on the removable energy source section (44; 244) in the housing (42; 242), wherein the energy source (106; 206) is configured to provide energy to the measuring element (58; 258); and a valve device (205) which is arranged in the inlet, wherein the pressure measuring device (32) is arranged at least partially between a spoke bed (34) and a tire arrangement bed (36) of a rim (20). [2] Pressure measuring device (32) according to claim 1, wherein a threaded section of the valve device (205) engages in a threaded section of the pressure chamber (50; 250). [3] Pressure measuring device (32) according to claim 1 or 2, wherein the valve device (205) comprises a valve insert release (51), wherein the valve insert release (51) enables fluid to be added or removed from the housing (42; 242) when the valve insert release (51) is pressed. [4] Pressure measuring device (32) according to one of the preceding claims, wherein the energy source section (44; 244) covers the energy source (106; 206). [5] Pressure measuring device (32) according to claim 4, wherein the energy source section (44; 244) is configured to allow removal and installation of the energy source (106; 206). [6] Pressure measuring device (32) according to claim 4 or 5, wherein the power source section (44; 244) comprises threads to allow removal and installation of the power source section (44; 244). [7] Pressure measuring device (32) according to one of the preceding claims, which further comprises a circuit (108), wherein the energy source (106; 206) is configured to provide energy to the circuit (108) and the measuring element (58; 258). [8] Pressure measuring device (32) according to claim 7, wherein the circuit (108) is arranged adjacent to the energy source (106; 206). [9] Pressure measuring device (32) according to claim 7 or 8, wherein the circuit (108) comprises a wireless communication means (120) in operational connection with the measuring element (58; 258). [10] Pressure measuring device (32) according to one of claims 7 to 9, wherein at least one section of the housing (42; 242) is made of a high-frequency transparent material. [11] Pressure measuring device (32) according to claim 9 or 10, wherein the wireless communication means (120) is configured to wirelessly transmit a signal indicating the pressure of a tire assembly (28). [12] Pressure measuring device (32) according to one of claims 9 to 11, wherein the circuit (108) is removable from the housing (42; 242). [13] Pressure measuring device (32) according to claim 12, wherein the circuit (108) is located within a removable circuit section (46; 246), wherein the removable circuit section (46; 246) is a part of the housing (42; 242) which is adjacent to the removable power source section (44; 244). [14] Pressure measuring device (32) according to one of the preceding claims, wherein the pressure in the measuring chamber (63) is equal to a pressure chamber pressure. [15] Pressure measuring device (32) according to one of the preceding claims, wherein the measuring element (58; 258) is attached to the measuring chamber (63). [16] Pressure measuring device (32) according to one of the preceding claims, wherein the energy source (106; 206) is arranged within the energy source section (44; 244). [17] Pressure measuring device (32) according to one of the preceding claims, which further comprises a measuring element seal (62; 262), wherein the measuring element seal (62; 262) is designed to prevent fluid flow past the measuring element (58; 258). [18] Pressure measuring device (32) according to one of the preceding claims, wherein the pressure measuring device (32) is secured to a bicycle rim. [19] Pressure measuring device (32) according to claim 18, which further comprises a valve stem (38), wherein the pressure measuring device (32) is secured to the bicycle rim by the valve stem (38). [20] Pressure measuring device (32) according to claim 18 or 19, wherein the valve stem (38) is connected to the outlet of the pressure chamber (50; 250).

Images