TWM542575U - Tire abrasion measurement device - Google Patents

Description

Tire wear measuring device

The present invention relates to a device for measuring tire safety, and more particularly to a tire wear measuring device that displays a tire wear measurement result by a light source.

Steam and locomotives are important vehicles used in people's daily life. They can not only carry and transport heavy objects, but also have the characteristics of fast moving. However, regardless of the popular vehicles or super sports cars, they can safely travel on the road. The most important thing is to rely on the tires, the output of the kinetic energy, the braking effect, the bending force and the drainage are all important issues for the safe driving of the vehicle. In general, excessive wear of tires has two major direct hazards. One is that the surface layer is excessively worn and easily puncture, and the other is the water drift effect caused by insufficient tread depth when it rains or hits the water surface. Especially when driving at high speed on a highway or fast road and suddenly encountering stagnant water, whether it is a general vehicle or a high-grade car equipped with an electronic control anti-skid system, when the water drift effect occurs and the tire completely loses the grip force in an instant, it is unexpected. It is easy to happen, and the deep enough tread is one of the important keys to effectively break water and drain. Therefore, the measurement of tire tread depth is currently listed as one of the important traffic regulations and law enforcement projects.

However, the general method of measuring the depth of the tread is quite inaccurate. Generally, no professional depth gauge can be used, even if a tool for depth measurement can be used (such as a vernier caliper, etc.), the tire is usually located in the vehicle. Bottom, user or measurer to be low It is quite inconvenient for the head or the squat to look at the measurement scale, and therefore the creator has developed and improved the measurement method for the tread depth, thereby providing a tire wear measuring device that is easy to use and the measurement results are clear at a glance.

The main purpose of this creation is to provide a tire wear measuring device that is easy to use and view the measurement results.

To achieve the above objective, the present tire wear measuring device comprises at least: a housing; a touch switch disposed in the housing and having a probe electrically conductive and protruding from the housing, and the a conductive spring connected to the probe and electrically connected, a conductive seat corresponding to the retracting direction of the probe and maintaining a gap to form an open circuit, and the electrical connection is opened when the probe is retracted to contact the conductive seat; The display unit has an illuminator exposed on the surface of the casing, a power source electrically connected to the illuminator, and the illuminator emits light when the probe is retracted into contact with the conductive seat. When in use, the operator must insert the probe into the tread groove to know whether the depth of the tread is insufficient or the statutory specification through the light source, and the light source is generated, so that the user is in the visual environment. In the shadow of strong backlighting, or in the darkness of insufficient lighting, you don’t have to squat or squat down. As long as the light source is generated, the depth of the tread is insufficient or the recommended tire replacement is required. Quite simple and convenient.

The conductive seat includes a nut fixed to the housing and an adjusting bolt disposed on the nut to adjust a spacing relative to the probe. In other words, by adjusting the rotation of the bolt, the precise depth of the tread adjustment can be determined. For example, the minimum depth of the legal tire tread is 1.6 mm, and the minimum depth of the locomotive tread is 0.8 mm.

The housing includes a base for the touch switch and the display unit a first housing coupled to one end of the base and having a probe through hole for the probe to be exposed; a second housing coupled to the other end of the base and having a light source hole for exposing the light source generated by the illuminator a first accommodating space is formed between the first housing and the pedestal, and a second accommodating space is formed between the second housing and the pedestal. The probe has a first a detachment preventing conductive card in the accommodating space for preventing the probe from coming out of the through hole, the pedestal having a matching hole corresponding to the adjusting bolt, wherein the adjusting bolt has a first accommodating space The anti-off-insulation card is configured to prevent the adjusting bolt from coming out of the through hole, and the conductive spring is disposed between the anti-off-conductive card board and the anti-off-insulating card board, and the nut is disposed on the base The position of the seat relative to the second accommodating space, according to which the implementation of the creation can be modular production and manufacturing.

A key ring is arranged on the casing for the portability, practicability and convenience of the implementation.

Compared with the prior art, the advantage of the present invention is that the measurement result of the insufficient tread depth can be directly presented by the light source, and the setting result is quite conspicuous, convenient and fast. It also provides a portable tire wear measuring device for use by the user or the measurer. It is different from the problem that the general single scale is difficult to obtain, the operation is inconvenient, or the measurement result is difficult to observe. The following is a description of the preferred embodiment of the present invention in accordance with the technical means of the present invention and is described in conjunction with the following description:

10‧‧‧shell

11‧‧‧Base

111‧‧‧through holes

112‧‧‧ battery slot

12‧‧‧First housing

121‧‧‧First accommodation space

122‧‧‧Perforation

13‧‧‧Second housing

14‧‧‧ key ring

131‧‧‧Second accommodating space

132‧‧‧Light source hole

20‧‧‧Touch switch

21‧‧‧ Probe

211‧‧‧Protection stripping board

22‧‧‧conductive spring

23‧‧‧Electric seat

231‧‧‧ nuts

232‧‧‧Adjusting bolts

233‧‧‧Anti-off insulation card board

30‧‧‧Display unit

31‧‧‧Lights

32‧‧‧Power supply

40‧‧‧Conductor

41‧‧‧Wire

Fig. 1 is a perspective view showing the first embodiment of the creation.

Fig. 2 is an exploded perspective view showing the first embodiment of the creation.

Figure 3 is a cross-sectional view showing the first embodiment of the creation.

Fig. 4 is a schematic view showing the appearance of the measurement according to the first embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view showing the measurement of the first embodiment of the present invention.

Fig. 6 is a schematic cross-sectional view showing the measurement of the first embodiment of the present invention.

1 to 3 are a perspective view, an exploded perspective view, and a cross-sectional view of the first embodiment of the present invention. The tire wear measuring device shown in the first embodiment mainly includes a casing 10, A touch switch 20 and a display unit 30 are compact in structure and easy to carry.

The housing 10 has a base 11, a first housing 12 and a second housing 13. A first accommodating space 121 is formed between the first housing 12 and the base 11 , and a through hole 122 is defined in the first housing 12 . A second accommodating space 131 is formed between the second casing 13 and the base 11 , and a light source hole 132 is disposed on the second casing 13 .

The touch switch 20 is disposed in the housing 11 and has a probe 21 that is electrically conductive and protrudes from the housing through the through hole 122, and a conductive spring 22 that is connected to the probe 21 and electrically connected. The conductive seat 23 corresponding to the retracting direction of the probe 21 and maintaining a gap to form a normal electrical disconnection, when the probe 21 is retracted into the housing 10, the probe 21 contacts the conductive seat 23 to electrically connect In the state of the path.

The probe 21 has a detachable conductive card 211. The detachable conductive card 211 is located in the first accommodating space 121 for preventing the probe 21 from coming off the venting plate 122.

The conductive seat 23 includes a nut 231 fixed to the base 11 of the housing 10 and an adjusting bolt 232 disposed on the nut 231 to adjust the spacing relative to the probe 21. The base 11 is opposite. A uniform hole 111 is provided in the adjusting bolt 232.

The adjusting bolt 232 has a detachment preventing insulating plate 233 located in the first accommodating space 121 to prevent the adjusting bolt 232 from coming out of the through hole 111.

The conductive spring 22 is disposed between the detachment prevention conductive plate 211 and the detachment prevention card 233. The nut 231 is disposed on the susceptor 11 at a position relative to the second accommodating space 131.

One end of the probe 21 protrudes from the convex portion of the outer surface of the casing 10 for determining the depth of the tread. When the tread depth is smaller than the protruding portion, the probe 21 is compressed and retracted and the other end of the probe 21 is The conductive seat 23 is touched to form a via.

If the safety depth of the preset tread is 0.8 mm, the convex elongation of the probe 21 protruding from the outer surface of the casing 10 must be adjusted to be at least 0.8 mm or more, and the convex elongation is the minimum pre-measurement for determining the tread depth. Set the length.

The display unit 30 has an illuminant 31 protruding from the surface of the housing 10 and a power source 32 electrically connected to the illuminant 31. The circuit of the power source 32 passes through the touch switch 20 When the touch switch 20 is turned on, that is, when the probe 21 is contracted into contact with the conductive seat 23, the illuminant 32 is electrically illuminated. The illuminant 31 of the present embodiment is at least one light emitting diode (LED) and the power source 32. For mercury batteries, to simplify the space and volume.

The power source 32 of this embodiment is disposed in the battery slot 112 of the base 11 relative to the first accommodating space 121. The power circuit is transmitted through the plurality of conductive sheets 40 disposed on the base 11 and the plurality of first receiving portions. The wires 121 and the wires 41 in the second accommodating space 131 respectively electrically connect the power source 32, the illuminator 31, the conductive spring 22 and the conductive seat 23, and the conductive spring 22 is in contact with the conductive probe 21, and The normal state maintained between the probe 21 and the conductive seat 23 is disconnected, so that the usual power supply circuit is maintained in an uninterrupted open state.

Please refer to FIG. 4 and FIG. 5, which are schematic diagrams of the measurement of the first embodiment of the present invention, and a schematic cross-sectional view of the measurement. In the measurement method of the embodiment, after the probe 21 is aligned with the tread, the probe 21 is protruded from the protruding portion outside the casing 10, and the tread is inserted, and if the depth of the tread exceeds the safe depth of the protrusion of the probe 21, The probe 21 will be retracted without any pressure, and therefore the probe 21 of the touch switch 20 will remain in the off state without being in contact with the conductive seat 23, and the illuminant 31 of the display unit 30 will not generate a light source. .

Please refer to FIG. 6 , which is a schematic cross-sectional view of the first embodiment of the present invention. When the depth of the tread does not reach the safe depth of the probe 21, the probe 21 will be pressed. When the probe 21 is retracted into contact with the conductive seat 23, the touch switch 20 is turned on, and the illuminant 31 of the display unit 30 generates a conspicuous light source, which also indicates the measured tread depth of the tire. Insufficient, there should be an immediate replacement, otherwise it will affect the safety of driving and illegal traffic regulations. Its main function is to make the measurement result of insufficient tread depth, which can be directly presented in the most striking way of illuminating, and achieves eye-catching, convenient and rapid effects. In addition, the key ring 14 can be further disposed on the casing 10 to facilitate carrying by the user.

The above description series is suitable for the preferred embodiment of the present invention, and is not limited to the present invention. For example, the same or similar measurement performance is exhibited by the same or directly replacing the equivalent elements, such as a conductive spring. Other simple replacements such as replacement of elastic components shall be within the scope of this patent application.

10‧‧‧shell

11‧‧‧Base

12‧‧‧First housing

13‧‧‧Second housing

14‧‧‧ key ring

21‧‧‧ Probe

31‧‧‧Lights

Claims (5)

A tire wear measuring device includes at least: a casing; a touch switch disposed in the casing and having a probe electrically conductive and protruding from the casing, and being connected to the probe and electrically connected a conductive spring, a conductive seat corresponding to the retracting direction of the probe and maintaining a gap to form an open circuit, the electrical connection is opened when the probe is retracted to contact the conductive seat; and a display unit having a An illuminator exposed on the surface of the casing, a power source electrically connected to the illuminator, and illuminating the illuminator when the probe is retracted into contact with the conductive seat. The tire wear measuring device according to claim 1, wherein the conductive seat comprises a nut fixed to the housing and an adjusting bolt disposed on the nut to adjust a spacing relative to the probe. The tire wear measuring device according to claim 1, wherein the conductive seat comprises a nut fixed to the housing and an adjusting bolt disposed on the nut to adjust a spacing relative to the probe, the shell The body includes a base for the touch switch and the display unit, a first housing combined with one end of the base and having a probe through hole for the probe to be exposed, and a combination of the base and the base a second housing having a light source hole at one end for exposing the light source generated by the illuminant. The tire wear measuring device according to claim 3, wherein a first accommodating space is formed between the first housing and the base, and a second space is formed between the second housing and the base. In the second accommodating space, the probe has a detachment preventing conductive card disposed in the first accommodating space for preventing the probe from coming out of the through hole, and the pedestal is provided with a consistent hole corresponding to the adjusting bolt, The adjusting bolt has a detachment preventing insulation card disposed in the first accommodating space, and In order to prevent the adjusting bolt from coming out of the through hole, the conductive spring is disposed between the anti-offpage conductive card board and the anti-off insulation card board, and the nut is disposed on the base relative to the second volume Set the location of the space. The tire wear measuring device according to claim 1, wherein the housing is provided with a key ring.