CN1231367C - Wheel rim with sensor - Google Patents

Abstract

The invention relates to a rim with a sensor for mounting in a tyre, comprising: a rim portion; a sensor for sensing the state of the tire and transmitting the signal by radio frequency; and a base fixed on the rim part, wherein the base is provided with two fixing hooks for fastening the sensor. The rim part is provided with a sensor device, so that the state of the vehicle can be transmitted to the vehicle by radio frequency signals, and a driver of the vehicle can know the state of the tire of the vehicle, thereby avoiding possible emergency situations. Furthermore, the sensor is firmly seated on the rim, so that the sensor does not have a possibility of falling off, and the balance of the tire can be improved, and the sensor can be easily detached to facilitate replacement or maintenance of the sensor.

Description

rim with sensor

technical field

The present invention relates to a pneumatic tire with a sensor device, in particular to a pneumatic tire with a sensor device firmly fixed on a rim and replaceable.

Background technique

There are many devices in the prior art that can be used to check the pressure of the pneumatic tires used for vehicles, such as the U.S. Patent No. 4,048,614 "Low Tire Pressure Warning Device (Low Tire Pressure Warning Device) issued to Shumway on September 13, 1977." )", which discloses a tire pressure warning system for a vehicle's pneumatic tires. The tire pressure warning system is mounted on the rim of a vehicle tire and has an activatable radio transmitter, a power source, a switch and a diaphragm member, the radio is activated when the tire pressure is below a predetermined pressure transmitter to warn the driver. The aforementioned warning devices can only warn of low tire pressure, and their components are quite complicated, so they are not suitable for modern vehicles.

U.S. Patent No. 5,844,131 "Tire Pressure Sensor Apparatus For A Pneumatic Tire Vehicle" issued December 1, 1998 to Gabelmann et al., which discloses a pressure sensing device, The sensor device includes a housing with at least two base components for being placed on the wheel rim platform of the vehicle, and the housing is adjustable to support, and cooperates with the tire valve stem to form a fixed state.

Furthermore, in U.S. Patent No. 6,055,855 "Tire Pressure Sensor Wheel Attachment Apparatus (Tire Pressure Sensor Wheel Attachment Apparatus)" issued to Straub on May 2, 2000, a wheel attached to a vehicle wheel is disclosed. On the rim, wherein the equipment has a pressure sensor, and a threaded holder, the pressure sensor can be fixed on the wheel rim of the vehicle by the threaded holder and a tire valve stem.

Furthermore, the applicant mentioned in the application No. 089117036 "Tire Pressure Monitoring Method and Device for Pneumatic Tires" on August 22, 2000 that the device has a sensor module, which is respectively installed on the In the tire, it is used to sense the state of the tire, and send the sensed tire state as a radio frequency signal, so as to monitor the tire state. In addition, the applicant filed the application No. 089118096 on September 2, 2000, "State Sensor of Pneumatic Vehicle Tire", which discloses a state sensor of a pneumatic tire of a vehicle, which is used to be installed in a pneumatic tire of a vehicle.

In the aforementioned technologies, the state sensor is generally installed on the rim platform of the tire through the valve stem of the tire. However, when the sensor is installed on the valve stem side of the tire, the balance of the tire will be considerably affected. Furthermore, since the aforementioned sensors are fixed by threaded components, they may loosen during use, so that the sensors cannot operate correctly.

PCT International Application WO01/76894A1 "Assembling Device for a Tire Condition Sensor" discloses a wheel rim with a sensor, and specifically discloses the technical features: "It is used to be installed in a tire, which includes a rim part , a housing fixed on the rim portion, and a sensor, embedded and installed in the base, to sense the state of the tire and send an electronic signal." It also discloses relying on a fixing bolt or two A fixed bolt is fixed on the wheel rim by welding, the housing has two extensions, each extension has a hole for the aforementioned one of the fixed bolts to pass through, and the housing and the fixed bolt have a buckle The device has two opposite fingers through a thin plate for resiliently biting the shank of the fixing bolt. Therefore, the fixing bolt needs to be welded on the wheel rim for positioning; the housing corresponding to the aforementioned fixing bolt needs to be provided with a hole for the fixing bolt to pass through, wherein the fixing bolt must rely on a thin plate arranged in the hole of the housing to assist , so that the combined relationship between the shell, the thin plate and the fixing bolt can be fixed. It can be seen from the above that the disclosed sensor fixing technology is relatively complicated.

Therefore, as mentioned above, the aforesaid sensor cannot be well fixed on the rim of the wheel, and the existing fixing method is too complicated, so it is necessary to provide a sensor with a good fixation on the rim, so as to detect the rim of the vehicle at any time. status.

Contents of the invention

The main object of the present invention is to provide a wheel rim with a sensor which can be firmly fixed on the wheel rim of a vehicle and interacts with a receiving device to monitor the usage status of the vehicle.

A secondary object of the present invention is to provide a wheel rim with a sensor, wherein the sensor is firmly fixed to the wheel rim and the sensor is detachable from the wheel rim.

To achieve the above purpose, the present invention provides a wheel rim with a sensor for being installed in a tire, which includes:

a rim portion;

a sensor for sensing the condition of the tire and sending it as a radio frequency signal; and

A base is fixed on the rim part, and the base has two fixing hooks for fastening the sensor.

In order to achieve the above object, the present invention also provides a wheel rim with a sensor for being installed in a tire, which includes:

a rim part

A sensor for sensing the state of the tire and sending it with a radio frequency signal;

a base, fixed on the rim portion, the base further has two fixing hooks: and

An upper cover part has two openings for cooperating with the two fixing hooks of the base to firmly fix the sensor.

To sum up, since the rim portion has a sensor device, the state of the vehicle can be transmitted to the vehicle by radio frequency signals, and accordingly the driver of the vehicle can understand the state of the tires of the vehicle, thereby avoiding possible accidents. Emergency situations. Furthermore, the sensor is firmly placed on the rim, so the sensor will not fall off, and the balance of the tire can be improved. Moreover, the sensor can also be easily disassembled, so as to replace or repair the sensor.

Description of drawings

FIG. 1 is an expanded view of a wheel rim with a sensor according to the first embodiment of the present invention;

Fig. 2 is a perspective view of the rim with sensors of Fig. 1;

3 is an expanded view of a wheel rim with a sensor according to a second embodiment of the present invention;

FIG. 4 is a perspective view of the rim with sensors of FIG. 3 .

Explanation of symbols in the figure

10 rims with sensors

12 rim part 14 base

16 sensor 18 upper cover part

20 fixed hooks 22 holes

24 recesses 26 contacts

50 rim with sensor

52 rim part 54 base

56 sensors 58 bolts

60 notches 62 fixed hooks

64 openings 66 threaded holes

68 fold board

Detailed ways

Please refer to FIG. 1 and FIG. 2 , which show a rim 10 with a sensor according to a first embodiment of the present invention. The rim 10 is used to add a rubber tread to form a pneumatic wheel of a vehicle. The rim with sensor 10 includes a rim portion 12 , a base 14 , a sensor 16 , and an upper cover portion 18 .

The base 14 can be firmly connected to the rim portion 12 by any fixing method, such as welding, spot welding, rivets, or threads. As shown, the base 14 is fixedly attached to the rim portion 12 by means of two joints 26 by spot welding. The position of the base 14 is relative to the stem (not shown) of the rim portion 12 , thereby improving the balance of the rim 10 .

The sensor 16 is disposed in the base 14 and fixed by the upper cover portion 18 . The size of the sensor 16 is substantially equal to the size of the base 14 , so that the sensor 16 can be firmly embedded in the base 14 . The base 14 has two fixing hooks 20 for cooperating with the openings 22 of the upper cover part 18 to fasten the upper cover part 18 . Preferably, the upper cover portion 18 has a recess 24 and is made of elastic material, such as a leaf spring, whereby the upper cover portion 18 can be tightly pressed against the sensor 16 and further firmly fixed The sensor 16. Furthermore, when the sensor 16 is to be removed, the upper cover portion 18 can be further pressed down, so that the opening 22 can be disengaged from the fixing hook 20 , and the sensor 16 can be removed.

Those skilled in the art will understand that the base 14 can also be integrally formed with the rim. That is to say, the rim 12 itself has a groove for inserting the sensor 16 . The rim 12 has two fixing hooks 20 for cooperating with the upper cover portion 18 to fix the sensor 16 . Alternatively, the rim 12 does not have any recesses, and the sensor 16 is firmly fastened to the rim 12 only by the upper cover portion 18 .

The sensor 16 has a sensor application-specific integrated circuit ASIC (SensorApplication-Specific Integrated Circuit), and a radio frequency (Radio Frequency; FR) transmitter, the sensor 16 can sense the state of the tire, such as tire pressure, temperature and acceleration data, And send the sensed tire condition with radio frequency (RF) signal. The sensor 16 can be seen in the application No. 089117036 "Tire Pressure Monitoring Method and Device for Pneumatic Tires" filed by the applicant on August 22, 2000, and this patent application is hereby incorporated into this description as refer to.

Those skilled in the art will understand that the sensor 16 can be in any shape, and the shape of the sensor 16 shown in the figure is only provided as an example for the convenience of explanation, not for limitation. Moreover, when the outer shape of the sensor 16 is other shapes, the base 14 and the upper cover part 18 may have corresponding outer shapes.

Referring now to FIGS. 3 and 4 , there is shown a rim 50 with sensors according to a second embodiment of the present invention. The rim 50 is substantially similar to the rim 10 , and similar elements are marked with similar symbols. The rim with sensor 50 includes a rim portion 52 , a base 54 and a sensor 56 .

The base 54 is connected to two threaded holes 66 of the rim portion 52 by means of two bolts 58 . The sensor 56 is disposed in the base 54 , and the size of the sensor 56 is substantially equal to the size of the base 54 . The base 54 has two fixing hooks 62 for hooking into the notches 60 of the sensor 56 to fix the sensor 56 . Preferably, the base 54 has two flaps 68 , each of which has an opening 64 . Therefore, when the sensor 56 is to be removed, a lever (not shown) can be inserted into the opening 64 so as to break apart the base 54 and take out the sensor 56 .

Those skilled in the art can understand that the rim portion is a rim of a locomotive tire, and the rim portion can also be a rim of an automobile tire. And the rim can be an iron rim or an aluminum rim.

As mentioned above, the rim part has a sensor device, which can transmit the state of the vehicle to the vehicle through radio frequency signals, so that the driver of the vehicle can understand the state of the tires of the vehicle and avoid possible emergency situations. Condition. Furthermore, the sensor is firmly placed on the rim, opposite to the valve stem of the rim, so the sensor will not fall off, and the balance of the tire can be improved. Moreover, the sensor can also be easily disassembled, so as to replace or repair the sensor.

Although the present invention has been disclosed by the aforementioned preferred embodiments, they are not intended to limit the present invention. Any skilled person can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be determined by the claims.

Claims (4)

1. A wheel rim with a sensor for installation in a tire, characterized in that it comprises: a rim portion; a sensor for sensing the condition of the tire and sending it as a radio frequency signal; and A base is fixed on the rim part, and the base has two fixing hooks for fastening the sensor. 2 . The wheel rim with sensor according to claim 1 , wherein the base further has two folding plates for removing the sensor. 3 . 3. A rim with a sensor for installation in a tire, characterized in that it comprises: a rim portion; A sensor for sensing the state of the tire and sending it with a radio frequency signal; a base, fixed on the rim portion, the base further has two fixing hooks: and An upper cover part has two openings for cooperating with the two fixing hooks of the base to firmly fix the sensor. 4 . The wheel rim with a sensor according to claim 3 , wherein the upper cover part has a recess, and the recess can abut against the sensor to securely fix the sensor.