WO2023007718A1 - Dispositif de détection de desserrement d'élément de fixation de roue - Google Patents

Dispositif de détection de desserrement d'élément de fixation de roue Download PDF

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Publication number
WO2023007718A1
WO2023007718A1 PCT/JP2021/028408 JP2021028408W WO2023007718A1 WO 2023007718 A1 WO2023007718 A1 WO 2023007718A1 JP 2021028408 W JP2021028408 W JP 2021028408W WO 2023007718 A1 WO2023007718 A1 WO 2023007718A1
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WO
WIPO (PCT)
Prior art keywords
wheel fixing
fixing member
wheel
transmitter
conductive
Prior art date
Application number
PCT/JP2021/028408
Other languages
English (en)
Japanese (ja)
Inventor
博久 山田
Original Assignee
太平洋工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 太平洋工業株式会社 filed Critical 太平洋工業株式会社
Priority to PCT/JP2021/028408 priority Critical patent/WO2023007718A1/fr
Publication of WO2023007718A1 publication Critical patent/WO2023007718A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B7/00—Wheel cover discs, rings, or the like, for ornamenting, protecting, venting, or obscuring, wholly or in part, the wheel body, rim, hub, or tyre sidewall, e.g. wheel cover discs, wheel cover discs with cooling fins
    • B60B7/04—Wheel cover discs, rings, or the like, for ornamenting, protecting, venting, or obscuring, wholly or in part, the wheel body, rim, hub, or tyre sidewall, e.g. wheel cover discs, wheel cover discs with cooling fins built-up of several main parts

Definitions

  • the present disclosure relates to a wheel fixing member looseness detection device.
  • a vehicle includes multiple axles, multiple hubs, multiple wheels, and multiple wheel fixing members.
  • One hub is provided at each end of the axle.
  • the wheel is rotatable integrally with the axle by fastening a wheel fixing member to the hub.
  • the fastening state of the wheel fixing member may be inspected.
  • Patent Literature 1 discloses an indicator that is provided so as to rotate integrally with a wheel fixing member. When inspecting the fastening state of the wheel fixing member, the inspection is performed by an inspector visually checking the indicator.
  • the wheel fixing member Even if the wheel fixing member is inspected, the wheel fixing member may become loose.
  • a wheel fixing member looseness detection device configured to detect looseness in a wheel fixing member for fixing a wheel to an axle.
  • the wheel fixing member looseness detection device is a transmitter provided integrally with the wheel fixing member and configured to transmit a radio signal indicating that the wheel fixing member is not loose.
  • a battery that is a power source for the transmitter; and a conductive member that constitutes a power supply line that connects the battery to the transmitter.
  • the conductive member is configured such that the power line is cut off when the wheel fixing member is loosened.
  • the power line will be cut and power will not be supplied to the transmitter.
  • the transmitter no longer transmits a radio signal indicating that the wheel fixing member is not loosened. Therefore, it is possible to detect that the wheel fixing member has become loose depending on whether or not the radio signal is received.
  • the device for detecting looseness of the wheel fixing member may further include a support member configured to support the conductive member.
  • the conductive member is configured to be attached to the wheel fixing member so as to be integrally rotatable. It may be configured to cut the power line by rotating together with.
  • a plurality of wheel fixing members are arranged with respect to the wheel, and the conductive member attached to each of the plurality of wheel fixing members is attached to another wheel fixing member.
  • Each conductive member may be arranged to be in contact with the conductive member, and configured to disconnect the power line by separating from the other conductive member by loosening the corresponding wheel fixing member.
  • FIG. 1 is a schematic configuration diagram of a vehicle
  • FIG. 2 is an exploded perspective view of a hub included in the vehicle in FIG. 1, a wheel included in the vehicle in FIG. 1, and a wheel fixing member included in the vehicle in FIG. 1.
  • FIG. FIG. 3 is a front view of a wheel fixing member loosening detection device provided on the wheel fixing member of FIG. 2
  • FIG. FIG. 3 is a front view of a wheel fixing member loosening detection device provided on the wheel fixing member of FIG. 2
  • FIG. 2 is a flow chart showing processing performed by the wheel fixing member looseness detection system provided in the vehicle of FIG. 1;
  • FIG. It is a perspective view of a wheel fixing member loosening detection device according to a modification.
  • the vehicle 10 includes multiple axles 11 , multiple hubs 12 , multiple wheels 14 , multiple wheel fixing members 20 , and a notification device 101 .
  • Vehicle 10 may be of any type, such as a truck, passenger car, or commercial vehicle.
  • one hub 12 is provided at each end of the axle 11 .
  • the hub 12 can rotate integrally with the axle 11 .
  • the hub 12 has a plurality of hub bolts 13 .
  • the plurality of hub bolts 13 are spaced apart from each other in the rotational direction of the axle 11 .
  • the wheel 14 is fixed to the axle 11 by fastening the wheel fixing member 20 to the hub bolt 13 passing through the wheel 14 .
  • Wheel 14 is fixed to axle 11 via hub 12 .
  • a case where one wheel 14 is provided on each end of each axle 11 will be described. good too. That is, each end of the axle 11 may be provided with one wheel for a single tire, or two wheels for a double tire.
  • the wheel fixing member 20 is a wheel nut.
  • a wheel fixing member 20 is fastened to the hub 12 .
  • the wheel fixing member 20 is a wheel nut fastened to the hub bolt 13 provided on the hub 12 .
  • the wheel fixing member 20 has a hexagonal shape when viewed from the axial direction of the wheel fixing member 20 .
  • a wheel fixing member 20 is a nut for fixing the wheel 14 to the axle 11 .
  • the number of wheel fixing members 20 is four for one wheel 14, but the number of wheel fixing members 20 is arbitrary.
  • the vehicle 10 includes a wheel fixing member looseness detection system 30.
  • the wheel fixing member looseness detection system 30 includes a wheel fixing member looseness detection device 31 and a receiver 91 .
  • the wheel fixing member loosening detector 31 includes a transmitter unit 32 and a conductive unit 50.
  • Transmitter unit 32 includes transmitter 33 and battery 41 .
  • the transmitter 33 includes a transmitter control device 34 , a transmission circuit 37 , a transmission antenna 38 , a first power supply terminal 39 and a second power supply terminal 40 .
  • the transmitter control device 34 includes a processor 35 and a storage section 36 .
  • the processor 35 include an MPU (Micro Processing Unit), a CPU (Central Processing Unit), and a DSP (Digital Signal Processor).
  • the storage unit 36 includes RAM (Random Access Memory) and ROM (Read Only Memory). Storage unit 36 stores program code or instructions configured to cause processor 35 to perform processes.
  • the transmitter control device 34 may be configured by a hardware circuit such as ASIC or FPGA.
  • the processing circuitry, transmitter controller 34 may include one or more processors operating according to a computer program, one or more hardware circuits such as ASICs or FPGAs, or a combination thereof.
  • ROM and RAM or computer-readable media include any available media that can be accessed by a general purpose or special purpose computer.
  • the storage unit 36 stores an ID code indicating unique identification information of the corresponding transmitter 33 .
  • the transmitter control device 34 generates data.
  • the data is digital data and binary data.
  • the data is data indicating an ID code.
  • the transmitter controller 34 inputs data to the transmitter circuit 37 .
  • the transmission circuit 37 transmits from the transmission antenna 38 a radio signal modulated according to the data input from the transmitter control device 34 .
  • a radio signal including the ID code is transmitted from the transmission circuit 37 .
  • a radio signal is a signal in a predetermined frequency band. Examples of frequency bands include the LF band, MF band, HF band, VHF band, UHF band, and 2.4 GHz band.
  • the transmitter controller 34 is configured to cause the transmitter circuit 37 to transmit radio signals at predetermined transmission intervals.
  • the predetermined transmission interval may be a predetermined constant interval, or may be an interval that randomly fluctuates between a predetermined upper limit and lower limit.
  • the first power supply terminal 39 and the second power supply terminal 40 are terminals electrically connected to the battery 41 . Electric power is supplied from the battery 41 to the transmitter 33 by electrically connecting the battery 41 to the first power supply terminal 39 and the second power supply terminal 40 .
  • the battery 41 is the power source for the transmitter 33 .
  • the battery 41 may be a primary battery or a secondary battery.
  • the battery 41 includes a positive terminal 42 and a negative terminal 43 .
  • the positive electrode terminal 42 of the battery 41 is electrically connected to the first power supply terminal 39 and the negative electrode terminal 43 of the battery 41 is electrically connected to the second power supply terminal 40 , whereby power is supplied from the battery 41 to the transmitter 33 . is supplied.
  • the transmitter 33 transmits radio signals by being supplied with power from the battery 41 .
  • Battery 41 and transmitter 33 are connected by power supply line L1.
  • the power supply line L1 includes a first power supply line L2 that electrically connects the positive terminal 42 of the battery 41 to the first power supply terminal 39, and a second power supply line L2 that electrically connects the negative terminal 43 of the battery 41 to the second power supply terminal 40. and a power supply line L3.
  • the conductive unit 50 includes a plurality of connection pieces 51 and 52.
  • the number of connection pieces 51 and 52 is the same as the number of wheel fixing members 20 .
  • the four connection pieces 51 and 52 include a first connection piece 51 and a second connection piece 52 .
  • Each connecting piece 51 , 52 has a support member 61 .
  • the support member 61 of the first connection piece 51 and the support member 61 of the second connection piece 52 have the same shape.
  • the support member 61 is made of an insulating material.
  • the insulating material is, for example, resin.
  • the support member 61 includes a body portion 62 , a first projecting portion 66 and a second projecting portion 70 .
  • the body portion 62 of this embodiment is circular.
  • the body portion 62 includes a defining surface 63 and an outer peripheral surface 65 .
  • Defining surface 63 defines through hole 64 .
  • the through hole 64 is hexagonal.
  • the direction from the center of the body portion 62 toward the outer peripheral surface 65 of the body portion 62 is defined as the radial direction of the body portion 62 .
  • the first projecting portion 66 projects from the outer peripheral surface 65 of the body portion 62 .
  • the first projecting portion 66 projects radially from the body portion 62 .
  • the first protruding portion 66 includes a first base end portion 67 , a first tip portion 68 and a first claw portion 69 .
  • the first base end portion 67 is an end portion of both ends of the first projecting portion 66 that is connected to the main body portion 62 .
  • the first distal end portion 68 is an end portion opposite to the first base end portion 67 among both end portions of the first projecting portion 66 .
  • the first claw portion 69 is provided on the first distal end portion 68 .
  • the second protruding portion 70 protrudes from the outer peripheral surface 65 of the main body portion 62 .
  • the second protruding portion 70 protrudes in the radial direction of the body portion 62 .
  • the first projecting portion 66 and the second projecting portion 70 are provided at a predetermined angle in the circumferential direction of the body portion 62 .
  • the second protruding portion 70 includes a second proximal end portion 71 , a second distal end portion 72 and a second claw portion 73 .
  • the second base end portion 71 is an end portion of both ends of the second protruding portion 70 that is connected to the main body portion 62 .
  • the second tip portion 72 is an end portion opposite to the second base end portion 71 among both end portions of the second projecting portion 70 .
  • the second claw portion 73 is provided on the second tip portion 72 .
  • the first connection piece 51 includes two conductive members 81 and 83.
  • Two conductive members 81 and 83 include a first conductive member 81 and a second conductive member 83 .
  • the conductive members 81 and 83 are supported by the support member 61 .
  • Conductive members 81 and 83 are exposed from support member 61 .
  • the first conductive member 81 is provided so as to extend from the body portion 62 along the first projecting portion 66 .
  • the first conductive member 81 extends to the first tip 68 of the first projection 66 .
  • the first conductive member 81 has a first contact 82 .
  • the first contact 82 is a portion of the first conductive member 81 provided along the first tip portion 68 .
  • the second conductive member 83 is provided so as to extend from the body portion 62 along the second projecting portion 70 .
  • the second conductive member 83 extends to the second tip portion 72 of the second projecting portion 70 .
  • the second conductive member 83 has a second contact 84 .
  • the second contact 84 is a portion of the second conductive member 83 provided along the second tip portion 72 .
  • Each second connection piece 52 has one conductive member 85 .
  • the conductive member 85 is supported by the support member 61 .
  • the conductive member 85 is exposed from the support member 61 .
  • Conductive member 85 extends between first tip 68 of first protrusion 66 and second tip 72 of second protrusion 70 .
  • Conductive member 85 includes a first contact 86 and a second contact 87 .
  • the first contact 86 is a portion of the conductive member 85 provided along the first tip portion 68 .
  • the second contact 87 is a portion of the conductive member 85 provided along the second tip portion 72 .
  • the four connecting pieces 51, 52 are connected to each other.
  • the four connection pieces 51 and 52 are connected by engaging the first claw portion 69 and the second claw portion 73 of two adjacent connection pieces with each other.
  • the four connection pieces 51 and 52 are arranged in a ring.
  • a toroid is any structure that forms a loop, ie a continuous shape without ends.
  • Annular includes, but is not limited to, circular, elliptical, and polygonal with pointed or rounded corners.
  • the first contacts and the second contacts of the two adjacent connection pieces are in contact with each other.
  • the first contact 82 of the first connection piece 51 contacts the second contact 87 of the adjacent second connection piece 52 .
  • the second contact 84 of the first connection piece 51 contacts the first contact 86 of another adjacent second connection piece 52 .
  • the first contacts 86 and the second contacts 87 of two adjacent second connection pieces 52 are in contact with each other.
  • the first conductive member 81, the second conductive member 83, and the conductive member 85 are connected to each other.
  • a transmitter unit 32 is provided on the first connection piece 51 .
  • the number of transmitter units 32 is less than the number of wheel fixing members 20 .
  • the transmitter unit 32 is provided so that power is supplied from the battery 41 to the transmitter 33 via the conductive members 81 , 83 and 85 .
  • the first conductive member 81 is connected to the positive terminal 42 of the battery 41 and the second conductive member 83 is connected to the first power supply terminal 39 .
  • the conductive members 81, 83, 85 constitute the first power line L2 of the power lines L1. That is, the conductive members 81, 83, 85 form part of the power supply line L1.
  • the second power supply line L3 may be configured by directly contacting the negative terminal 43 of the battery 41 with the second power supply terminal 40, or may be configured by connecting the negative terminal 43 of the battery 41 to the second power supply terminal with a conductive connecting member. 40 may be configured.
  • the wheel fixing member loosening detection device 31 is attached to the wheel fixing member 20 . Specifically, the wheel fixing member loosening detection device 31 is attached to the wheel fixing member 20 by fitting the wheel fixing member 20 one by one into the through holes 64 provided in the connection pieces 51 and 52 .
  • the connection pieces 51 and 52 attached to each wheel fixing member 20 can rotate integrally with the wheel fixing member 20 fitted in the through holes 64 of the connection pieces 51 and 52 .
  • each conductive member 81 , 83 , 85 is separated from the other conductive members 81 , 83 , 85 by loosening the wheel fixing member 20 .
  • the first power supply line L2 formed by the conductive members 81, 83, 85 is cut off. That is, the power supply line L1 is disconnected.
  • the receiver 91 includes a receiver control device 92, a receiving antenna 95, and a receiving circuit 96.
  • Receiver 91 is mounted on vehicle 10 .
  • the receiver control device 92 includes a processor 93 and a storage section 94.
  • Processors 93 may include, for example, MPUs, CPUs, and DSPs.
  • the storage unit 94 includes ROM and RAM. Storage unit 94 stores program code or instructions configured to cause processor 93 to perform processing.
  • the receiver control device 92 may be configured by a hardware circuit such as ASIC or FPGA.
  • the processing circuitry, receiver controller 92 may include one or more processors operating according to a computer program, one or more hardware circuits such as ASICs or FPGAs, or a combination thereof.
  • ROM and RAM or computer-readable media include any available media that can be accessed by a general purpose or special purpose computer.
  • the ID codes of all the transmitters 33 are stored in the storage unit 94.
  • the ID code stored in the storage unit 94 may be associated with the position of the wheel fixing member 20 . That is, the ID code may be stored so that the receiver control device 92 can recognize the position of the transmitter 33 that transmitted the radio signal.
  • “Position of wheel fixing member 20 ” means the arrangement position of wheel 14 provided with wheel fixing member 20 with respect to vehicle 10 . For example, in the case of the wheel fixing member 20 for fixing the wheel 14 provided on the front right of the vehicle 10, the ID code of the transmitter 33 provided on the wheel fixing member 20 is associated with the front right of the vehicle 10.
  • the receiving antenna 95 receives the radio signal transmitted from each transmitter 33 .
  • the receiving circuit 96 demodulates the radio signal received via the receiving antenna 95 to obtain data.
  • the receiving circuit 96 outputs data to the receiver controller 92 .
  • the receiver control device 92 acquires the ID code.
  • the notification device 101 is a device for notifying passengers of the vehicle 10 that the wheel fixing member 20 has become loose.
  • the notification device 101 may be any device, such as a device that notifies by sound, a device that notifies by lighting a lamp, or a device that notifies by displaying characters or marks.
  • the notification device 101 performs notification according to a command from the receiver control device 92 .
  • looseness detection processing of the wheel fixing member 20 is performed. Looseness detection processing of the wheel fixing member 20 is repeatedly performed at a predetermined cycle.
  • step S1 the transmitter control device 34 transmits radio signals.
  • the transmitter control device 34 periodically transmits radio signals while being supplied with power from the battery 41 . Thereby, a radio signal is transmitted from each transmitter 33 to the receiver 91 .
  • step S2 the receiver control device 92 acquires the ID code from the radio signal.
  • the receiver control device 92 determines whether or not any wheel fixing member 20 is loosened. For each ID code stored in the storage unit 94, the receiver control device 92 determines whether or not the ID code has been acquired. Depending on the surrounding environment, the receiver 91 may not be able to receive the radio signal even though the transmitter 33 is transmitting the radio signal. Therefore, if the same ID code has not been obtained continuously for a predetermined time or longer, the receiver control device 92 determines that the ID code has not been obtained. When the ID codes of all the transmitters 33 are acquired, the receiver control device 92 determines that none of the wheel fixing members 20 is loosened.
  • the receiver control device 92 If the receiver control device 92 cannot acquire the ID code of at least one transmitter 33, it determines that one of the wheel fixing members 20 is loose. Since the ID code is transmitted by radio signal, it can be said that the receiver control device 92 detects looseness of the wheel fixing member 20 based on the presence or absence of the radio signal. If the storage unit 94 stores the position of the wheel 14 in association with the ID code, the receiver control device 92 may identify the position of the loose wheel fixing member 20 . When the ID code cannot be acquired, the receiver control device 92 may determine that the wheel fixing member 20 provided at the position of the wheel 14 associated with the ID code is loose.
  • the receiver control device 92 determines the wheel for fixing the front right wheel 14 of the vehicle 10. It may be determined that the fixing member 20 has loosened. If the determination result of step S3 is affirmative, the receiver control device 92 performs the process of step S4. If the determination result in step S3 is negative, the receiver control device 92 terminates the loosening detection process of the wheel fixing member 20 .
  • step S4 the receiver control device 92 notifies the notification device 101. After finishing the process of step S4, the receiver control device 92 ends the loosening detection process of the wheel fixing member 20.
  • the power line L1 is cut. By disconnecting the power line L1, the power supply to the transmitter 33 is stopped. As a result, radio signals are no longer transmitted from the transmitter 33 .
  • the receiver control device 92 cannot acquire the ID code of the transmitter 33 .
  • the receiver control device 92 can detect that the wheel fixing member 20 has become loose. It can be said that the radio signal transmitted from the transmitter 33 is a signal indicating that the wheel fixing member 20 is not loosened.
  • the conductive members 81, 83, 85 are configured so that the power line L1 is cut off when the wheel fixing member 20 is loosened.
  • the power supply line L1 is cut, and power is no longer supplied to the transmitter 33 . Since the power supply to the transmitter 33 is stopped, the radio signal is not transmitted from the transmitter 33 .
  • the receiver 91 can detect that the wheel fixing member 20 has become loose.
  • the wheel fixing member loosening detection device 31 can cause the receiver 91 to detect that the wheel fixing member 20 has loosened.
  • the wheel fixing member looseness detection device 31 includes a support member 61 .
  • a support member 61 By supporting the conductive members 81 , 83 , 85 with the support member 61 , deformation of the conductive members 81 , 83 , 85 over time can be suppressed. It is possible to prevent the conductive members 81, 83, 85 from coming out of contact with each other due to deformation.
  • the conductive members 81, 83, 85 cut the power line L1 by rotating integrally with the wheel fixing member 20. It is also conceivable to configure the conductive members 81 , 83 , 85 so that the power supply line L ⁇ b>1 is cut by the movement of the wheel fixing member 20 in the axial direction due to the loosening of the wheel fixing member 20 . The amount of axial movement of the wheel fixing member 20 relative to the amount of rotation of the wheel fixing member 20 is small. Therefore, if a configuration is adopted in which the power supply line L1 is cut by the movement of the wheel fixing member 20 in the axial direction, the looseness of the wheel fixing member 20 can be detected by the receiver when the wheel fixing member 20 is slightly loosened. 91 may not be able to do it. By adopting a configuration in which the power supply line L1 is cut by the rotation of the wheel fixing member 20, loosening of the wheel fixing member 20 can be quickly detected when the wheel fixing member 20 becomes loose.
  • an inspection using a hammering sound and an inspection using an indicator may be performed. These inspections can only be performed while the vehicle 10 is stopped.
  • the receiver 91 can detect looseness of the wheel fixing member 20 even while the vehicle 10 is running.
  • the power line L1 is cut.
  • a transmitter unit 32 does not have to be provided for each wheel fixing member 20 because a wireless signal is not transmitted when one of the wheel fixing members 20 is loosened. Therefore, the number of transmitter units 32 can be made smaller than the number of wheel fixing members 20 .
  • the conductive member 120 may be annular and may be a single member. Conductive member 120 constitutes at least part of power supply line L1.
  • the conductive member 120 is arranged so as to face each wheel fixing member 20 . Specifically, the conductive member 120 is arranged so as to face the wheel fixing member 20 in the axial direction of the wheel fixing member 20 . Specifically, the conductive member 120 is fixed to the wheel fixing member 20 . Any method may be used to fix the conductive member 120 to the wheel fixing member 20 . For example, a bracket for fixing the conductive member 120 may be used, or an adhesive may be used. When the wheel fixing member 20 is loosened, the wheel fixing member 20 moves in the axial direction as the wheel fixing member 20 rotates.
  • a load from the wheel fixing member 20 is applied to the conductive member 120 due to the axial movement of the wheel fixing member 20 .
  • the conductive member 120 breaks when receiving the load from the wheel fixing member 20 .
  • Power supply line L1 is cut by breaking conductive member 120 .
  • the wheel fixing member loosening detection device 31 may not have a supporting member.
  • the wheel fixing member loosening detection device 31 may be provided integrally with the wheel fixing member 20 , and may be attached to a nut cap attached to the wheel fixing member 20 .
  • the conductive members 81, 83, 85 may constitute the second power supply line L3.
  • the wheel fixing member looseness detection device 31 may include a conductive member forming the first power line L2 and a conductive member forming the second power line L3. In this case, both the first power line L2 and the second power line L3 are disconnected due to the looseness of the wheel fixing member 20 . In this way, the conductive member may constitute at least part of the power supply line L1.
  • the wheel fixing member 20 may be a wheel bolt.
  • the hub 12 has bolt holes instead of the hub bolts 13 . Wheel bolts are inserted into the bolt holes. The wheel bolt is thereby fastened to the hub 12 .
  • Wheel 14 is fixed to axle 11 by a wheel bolt.
  • a wheel bolt has a shaft and a head.
  • the shaft is inserted into the bolt hole.
  • the head has, for example, a hexagonal shape when viewed from the axial direction of the wheel bolt.
  • the wheel fixing member loosening detection device 31 is attached to the head.
  • the wheel fixing member loosening detection device 31 may be attached to the wheel bolt by fitting the head of the wheel bolt into each of the through holes 64 provided in the connection pieces 51 and 52 .
  • the conductive member may be provided with a nut cap attached to the wheel fixing member 20 .
  • the conductive member is provided on the inner peripheral surface of the nut cap.
  • the nut cap is provided so that the power line L1 is cut as the wheel fixing member 20 rotates.
  • the number of transmitter units 32 is arbitrary.
  • the number of transmitter units 32 may be less than the number of wheel fixing members 20 or may be greater than or equal to the number of wheel fixing members 20 .
  • L1 power supply line 10 vehicle 11 axle 14 wheel 20 wheel fixing member 31 wheel fixing member loosening detector 33 transmitter 41 battery 61 support member 81, 83, 85, 120... Conductive member, 91... Receiver.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

Un dispositif de détection de desserrement d'élément de fixation de roue (31) comprend un émetteur (33) disposé d'un seul tenant avec un élément de fixation de roue (20) pour fixer une roue (14) à un essieu (11). L'émetteur (33) est configuré pour transmettre un signal sans fil indiquant qu'il n'y a pas de desserrement dans l'élément de fixation de roue (20). Le dispositif de détection de desserrement d'élément de fixation de roue (31) comprend : une batterie (41) qui sert de source d'alimentation de l'émetteur (33) ; et des éléments conducteurs (81, 83, 85) qui constituent une ligne d'alimentation (L1) qui connecte la batterie (41) à l'émetteur (33). Les éléments conducteurs (81, 83, 85) sont configurés de telle sorte que la ligne d'alimentation électrique (L1) soit coupée en raison du desserrement de l'élément de fixation de roue (20).
PCT/JP2021/028408 2021-07-30 2021-07-30 Dispositif de détection de desserrement d'élément de fixation de roue WO2023007718A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/028408 WO2023007718A1 (fr) 2021-07-30 2021-07-30 Dispositif de détection de desserrement d'élément de fixation de roue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/028408 WO2023007718A1 (fr) 2021-07-30 2021-07-30 Dispositif de détection de desserrement d'élément de fixation de roue

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WO2023007718A1 true WO2023007718A1 (fr) 2023-02-02

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PCT/JP2021/028408 WO2023007718A1 (fr) 2021-07-30 2021-07-30 Dispositif de détection de desserrement d'élément de fixation de roue

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013523519A (ja) * 2010-03-30 2013-06-17 ウィーリー−セーフ リミテッド ホイールロス検知装置
JP2017047837A (ja) * 2015-09-04 2017-03-09 Ntn株式会社 ホイール締結状態判定装置
JP2018070153A (ja) * 2016-10-28 2018-05-10 マクリーン−フォグ カンパニー ホイールファスナアラーム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013523519A (ja) * 2010-03-30 2013-06-17 ウィーリー−セーフ リミテッド ホイールロス検知装置
JP2017047837A (ja) * 2015-09-04 2017-03-09 Ntn株式会社 ホイール締結状態判定装置
JP2018070153A (ja) * 2016-10-28 2018-05-10 マクリーン−フォグ カンパニー ホイールファスナアラーム

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