JP2007038993A - Led emission type tire air pressure checker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an LED emission type tire air pressure checker capable of easily checking the air pressure of a vehicle tire by color display by lighting or blinking a display lamp of an LED or the like irrespective of brightness or darkness. <P>SOLUTION: A valve core is opened by operating an operation member 5 in a checking means 2 in the fitting axial direction of the valve core b. Air in the tire is introduced into a body 1, a detector 6 in which a movement quantity is changed in the fitting axial direction of the valve core according to the pressure of the introduced air is detected by detection means 7, 8. The air pressure is displayed to the outside of the body by lighting or blinking an adequate air pressure display lamp 9 in which the tire air pressure is adequate or a non-adequate air pressure display lamp 10 in which the tire air pressure is non-adequate by the detection signal of the detection means according to a change in the movement quantity of the detector. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention can easily check tire air pressure in small vehicles such as motorcycles and large trucks regardless of light and dark places by lighting or blinking indicator lights such as light emitting diodes (hereinafter simply referred to as LEDs). The present invention relates to an LED light emitting tire pressure checker and a tire pressure detection method using the tire pressure checker.

  Conventionally, when checking the air pressure of tires of motorcycles and automobiles, the air pressure is checked by pressing the air pressure gauge against the opening of the tire valve and reading the scale of the air pressure gauge displaced by the air pressure in the tire. In addition, as seen in the “tire pressure lid that notifies the tire pressure with color” described in Patent Document 1, the “tire pressure display device” described in Patent Document 2, and the like, A product that checks the air pressure by displacing the disk by the air pressure in the tire and visually checking the color state has been commercialized or proposed.

JP-A-10-332513 Japanese Utility Model Publication No.58-99642

  However, in the case of checking the air pressure by the gauge scale, a considerable amount of air may leak from the gap of the opening while the air pressure gauge is pressed against the opening of the tire valve. There were many cases where it decreased.

  In addition, the one described in Patent Documents 1 and 2 that checks the tire air pressure by color display has a structure in which the valve core is opened by always pressing the shaft of the valve core so that the inside of the tire communicates with the inside of the air pressure checker. Is. For this reason, if there is a pinhole in the bellows constituting the check mechanism or if the tire valve is loosely mounted, the air in the tire may leak outside and safety may not be guaranteed. .

  The object of the present invention has been made in consideration of the above-mentioned circumstances, and can reliably prevent air leakage from the tire and improve the visibility of the air pressure inspection by visual inspection without being affected by surrounding light and darkness. Another object of the present invention is to provide an LED light-emitting tire pressure checker and a tire pressure detection method using the tire pressure checker.

In a tire pressure detection method using a tire pressure checker provided with a main body portion that can be attached to the outer end portion of a tire valve having a valve core therein and a check means provided in the main body portion,
The operation member in the check means is actuated toward the mounting axis direction of the valve core to open the valve core, the air in the tire is introduced into the main body, and the amount of movement depends on the pressure of the introduced air. The detection body that changes in the mounting axis direction of the valve core is detected by the detection means,
Depending on the detection signal of the detection means according to the change in the amount of movement of the detection body, an appropriate air pressure indicator lamp that is appropriate for the tire air pressure or an inappropriate air pressure indicator light that is not appropriate for the tire air pressure is turned on or There is a tire pressure detection method that blinks and displays on the outside of the main body.

In a tire pressure detection method using a tire pressure checker provided with a main body portion that can be attached to the outer end portion of a tire valve having a valve core therein and a check means provided in the main body portion,
The operation member in the check means is actuated toward the mounting axis direction of the valve core to open the valve core, the air in the tire is introduced into the main body, and the amount of movement depends on the pressure of the introduced air. The detection body that changes in the mounting axis direction of the valve core is detected by the detection means,
When the tire air pressure is appropriate, the air pressure indicator light is turned on or blinked by the detection signal of the detecting means according to the change in the amount of movement of the detection body, and when the tire air pressure is inappropriate, the air pressure indicator light is turned on the tire. There is a tire air pressure detection method in which a display different from that when the air pressure is appropriate is blinked or lit and displayed on the outside of the main body.

In a tire pressure detection method using a tire pressure checker provided with a main body portion that can be attached to the outer end portion of a tire valve having a valve core therein and a check means provided in the main body portion,
The operation member in the check means is actuated toward the mounting axis direction of the valve core to open the valve core, the air in the tire is introduced into the main body, and the amount of movement depends on the pressure of the introduced air. By the detection body that changes in the direction of the valve core mounting axis,
When the tire air pressure is appropriate, the first detection means detects the moving position of the detection body in the main body and turns on or blinks the appropriate air pressure indicator lamp,
In the tire pressure detecting method, when the tire pressure is inappropriate, the second detecting means detects the moving position of the detection body in the main body and turns on or blinks the inappropriate pressure indicator lamp.

In a tire pressure detection method using a tire pressure checker provided with a main body portion that can be attached to the outer end portion of a tire valve having a valve core therein and a check means provided in the main body portion,
The operation member in the check means is actuated toward the mounting axis direction of the valve core to open the valve core, the air in the tire is introduced into the main body, and the amount of movement depends on the pressure of the introduced air. By the detection body that changes in the direction of the valve core mounting axis,
When the tire pressure is appropriate, the first detection means detects the outermost movement position of the detection body in the main body, and the appropriate air pressure indicator lamp is turned on or blinked,
When the tire pressure is inappropriate, the detection body in the main body moves to the intermediate movement position, so the first detection means and the second detection means have not detected the detection body, Turn on or blink the inappropriate air pressure indicator,
In the tire pressure detection method, when the second detection means detects the innermost movement position of the detection body in the main body in the mounting axis direction of the valve core, the tire pressure check is in a standby state.

  The improper detection area for detecting improper tire pressure is divided into a danger area that requires replenishment of the tire pressure and a warning area that prompts a warning, and the display corresponding to the danger area and the warning area is made different. Do.

  The air pressure indicator lamp for displaying the appropriateness of the tire pressure is turned on or blinking, and the air pressure indicator light for displaying the inappropriateness of the tire air pressure is blinked or turned on.

  The tire pressure is displayed by changing the color of the appropriate air pressure indicator lamp and the inappropriate air pressure indicator light depending on the shade.

And a tire pressure checker attached to a tire valve provided in a tire and having a valve core inside, a main body provided to be attached to an outer end portion of the tire valve so that one side portion can be mounted in the mounting axis direction of the valve core; In the tire pressure checker provided with the checking means provided in the main body,
The check means is an operation member attached to the main body portion so as to be movable with respect to the mounting axis direction of the main body portion, and is movably attached to the operation member and introduced into the main body portion when the valve core is opened. A detecting body whose movement amount changes in the mounting axis direction of the valve core according to the pressure level of the air, a detecting means for detecting a moving position of the detecting body provided in the moving direction of the detecting body, and connected to the detecting means An appropriate air pressure indicator lamp and an improper air pressure indicator light that are turned on or blinking when the detecting means detects the detection object, and a power source that supplies power to the detecting means and the appropriate air pressure indicator light and the improper air pressure indicator light. The structure of a tire pressure checker having

A tire pressure checker that is provided on a tire and is attached to a tire valve having a valve core therein, and a main body portion that is provided so that one side portion can be attached to an outer end portion of the tire valve in a mounting axis direction of the valve core, and the main body And a tire pressure checker provided with a check means provided in the section,
The check means is an operation member attached to the main body portion so as to be movable with respect to the mounting axis direction of the main body portion, and is movably attached to the operation member and introduced into the main body portion when the valve core is opened. A detection body whose movement amount changes in the direction of the mounting axis of the valve core according to the pressure level of the air, and first detection means and second detection means for detecting the movement position of the detection body provided side by side in the movement direction of the detection body Means, an appropriate air pressure indicator lamp that lights up or blinks when the first detection means detects the detection body, and the second detection means is connected to the second detection means. An improper air pressure indicator that lights or blinks when the detection object is detected; a power source that supplies power to the first air detector and the second air detector; In the configuration of that tire pressure checker.

  The present invention configured as described above can surely prevent air leakage from the tire and can improve the visibility of the air pressure check by visual inspection regardless of the light and dark place.

Next, an example of implementation of the LED light emission type tire pressure checker relating to the present invention will be described based on the drawings.
1 and 4 to 6 show an embodiment of a tire pressure checker A employing a tire pressure detection method according to an embodiment of the present invention. It is provided on a vehicle tire (not shown) such as a truck and is attached to a tire valve c having a valve core b inside, and one side portion is attached to the outer end portion of the tire valve c in the mounting axis direction of the valve core b ( It is basically composed of a main body portion 1 provided so as to be mountable in the direction of the M line in FIG.
The tire air pressure checker A also serves as a valve cap of the tire valve c, and is always attached to the tire valve c.

The main body 1 described above is formed in a cylindrical shape that is concentric with the axial center of the valve core b in the mounting axis direction, and is connected to the male screw body c2 that is screwed around the outer periphery of the tire valve c. The threaded body 3 is detachably threaded so as to be screwed around the periphery. When filling the tire with air, the main body 1 is removed and a conventional air filling device is used.
In addition, an airtight packing 4 is built in the inner peripheral portion of the main body 1 and is brought into contact with the outer edge of the tire valve c by screwing of the main body 1 to prevent air leakage in the tire. .

  The check means 2 is for inspecting the air pressure in the tire. The operation member 5, the detection body 6, the first detection means 7, the second detection means 8, the appropriate air pressure indicator lamp 9, and the inappropriate air pressure. It has an indicator lamp 10 and a power supply 11.

Among these, the operation member 5 described above is attached to the main body 1 so as to be movable with respect to the mounting axis direction of the main body 1 (M-line direction shown in FIG. 1), and the valve core b (main body 1). It is formed in a cylindrical shape that is concentric with the axis in the mounting axis direction.
Further, a pressing member 12 that can be brought into and out of contact with the operating shaft b1 of the valve core b is provided at a substantially central portion of the inner end portion of the operating member 5.
The operation shaft b1 opens the valve core b only at the time of checking the tire air pressure, allows the air in the tire to flow into the main body 1 from the valve core b, and closes the valve core b at normal times other than during the air pressure inspection. It is.

The operating member 5 has a maximum length of the engagement long groove 24 by engagement of the engagement long groove 24 provided on the inner side of the operation member 5 and the engagement protrusion 25 protruded from a substantially intermediate portion of the outer periphery of the main body 1. The operation member 5 can move within the groove stroke range, and the movement is restricted to a certain amount.
Further, the inner wall of an air chamber 19 to be described later in the operation member 5 is hermetically inserted into the upper tube guide 26 of the main body 1, so that the operation member 5 can be stably slidably guided.

The detection body 6 is attached to the operation member 5 so as to be movable with respect to the mounting axis direction of the operation member 5 (the M-line direction shown in FIG. 1), and the main body 1 as the valve core b is opened. The amount of movement of the detection body 6 changes in the mounting axis direction of the valve core b depending on the pressure level of the air introduced into the inside, that is, it is positioned at a predetermined movement position in the mounting axis direction of the operating member 5. It is configured.
The detection body 6 is a magnet that generates a predetermined magnetic force (line of magnetic force), and is attached to a moving member 14 that is movably mounted in a moving chamber 13 formed in the operation member 5.
Further, the moving member 14 is normally in the moving chamber 13 by a lid 15 attached to the outer end of the operation member 5 and an expansion member 16 such as a coil spring suspended from the moving member 14. The valve core b is biased.
Further, a push-up member 17 is movably provided in the moving chamber 13 so as to correspond to the bottom of the moving member on the urging side of the expansion member 16. The moving chamber 13 is hermetically partitioned by an airtight member 18 such as a packing attached to one side of the moving member 14.

The moving member 14 moves in the moving chamber 13 by the air pressure into which the air filled in the tire flows, and to the moving chamber 13 in the flow of air from the operation shaft b1 of the valve core b. A communicating air passage is formed. That is, the air flowing into the main body 1 from the outer end opening c1 of the tire valve c enters the passage 12a of the pressing member 12 provided at the inner end of the operation member 5 in the check means 2, and enters the operation member 5 The air chamber 19 is filled. The air chamber 19 is formed in communication with the moving chamber 13 on the side where the push-up member 17 is provided in the moving chamber 13. Therefore, the air filled in the air chamber 19 flows into the one side portion 13a of the moving chamber 13, so that the moving amount of the moving member 14, that is, the moving amount of the detecting body 6 is changed according to the pressure level of the air. It is obtained.
The push-up member 17 is engaged with a protrusion 26a formed on one side of the push-up member 17 by engaging a protrusion 26a in the upper cylinder guide 26 at the time of tire pressure inspection. The push-up member 17 disposed in the one side portion 13a moves upward, and the pressure within the tire introduced into the moving chamber 13 and the push force of the expansion member 16 in the movement limit region of the push-up member 17 are affected. Move in equilibrium.

The first detection means 7 and the second detection means 8 described above are provided side by side with a predetermined interval in the movement direction of the detection body 6, and detect the movement position of the detection body 6 as the moving member 14 moves. It is.
The first detection means 7 and the second detection means 8 use magnetic sensors when the detection body 6 is a magnet, but any means is used depending on the detection body 6.

The appropriate air pressure indicator lamp 9 is connected to the first detection means 7 and lights up or blinks when the first detection means 7 detects the detection body 6, and an LED or the like is used.
The improper air pressure indicator lamp 10 is connected to the second detection means 8 and lights up or blinks when the second detection means 8 detects the detection body 6, and an LED or the like is used.
These proper air pressure indicator 9 and improper air pressure indicator light 10 emit light of different colors, so that it is visually confirmed whether or not either of the indicator lights 9 and 10 is lit or flashing, and in a light and dark place. Regardless of what can be confirmed, for example, the proper air pressure indicator light 9 is colored green and the improper air pressure indicator light 10 is colored red to allow visual discrimination, but the color is not limited to this.
The proper air pressure indicator 9 and the improper air pressure indicator 10 are accommodated at predetermined intervals in a hemispherical condenser lens 20 made of glass or synthetic resin, and are amplified by the condenser lens 20. The light is emitted to the outside, and this light can be visually confirmed from the outside through the display portion 5a of the movable body cylinder 5. If the display unit 5a has a groove with a predetermined depth and a predetermined width on the outer peripheral surface of the movable body cylinder 5, a thick part and a thin part are formed on the outer wall of the movable body cylinder 5. The light emitting effect is improved. Further, if the reflector 21 is provided on the back of the display unit 5a in the vicinity of the condenser lens 20, the luminance can be further improved.

  Further, the proper air pressure indicator 9 and the improper air pressure indicator 10 are preferably chip-type single color LEDs in order to reduce the shape, but they may be two-color integrated LEDs, or discrete single-color LEDs or two colors. An integrated LED or the like may be arbitrary. Moreover, although the direction is also directed to the side, it may be upward. The condensing lens 20 is transparent when both the indicator lamps 9 and 10 are colored LEDs. However, the condenser lens 20 may be arbitrarily dyed or covered with the indicator lamps 9 and 10. Absent. The display unit 5a is also colorless and integrated with the operation member 5 because both the indicator lamps 9 and 10 use colored LEDs. Instead of this, a method of fitting a panel made of synthetic resin or glass dyed by color, or There is a method of dyeing by color, but any method may be used.

  The first detection means 7 and the second detection means 8, the appropriate air pressure indicator lamp 9 and the inappropriate air pressure indicator lamp 10 are integrally attached to the substrate 40 at predetermined positions, and the mounting groove of the operation member 5 is attached. 41.

  The power source 11 supplies power to the first detection means 7 and the second detection means 8, the appropriate air pressure indicator light 9 and the inappropriate air pressure indicator light 10, and is provided at a suitable place of the operation member 5, for example, the operation member 5 One or a plurality of small batteries such as button batteries are accommodated in the accommodating space 22 provided on the outer side. In addition, when attaching and detaching the power source 11, the storage space 22 is opened by removing the lid 15 fitted to the outer end of the operation member 5, and the work can be performed arbitrarily. Thus, the fixing within the operation member 5 is performed by attaching the lid 15 via the elastic member 23 such as a coil spring.

Therefore, the operation of the first example of the LED light emitting tire pressure checker A configured as described above will be described with reference to FIGS. 4 to 6-1 and FIG. 6-2. 4 to 6-1 are irregular cross-sectional views taken along the YY portion in FIG.
First, the tire pressure checker A is screwed to the tire valve c and used as a valve cap in a normal state, that is, in a state before the tire pressure check is performed.
At this time, there is a gap (for example, about 0.5 mm) between the operating shaft b1 of the valve core b in the tire valve c and the pressing member 12 of the operating member 5, as shown in FIG. ), In a non-contact state. This non-contact state is maintained because the gap is maintained by the inward end of the moving member 14 moving by the pressing force of the expansion member 16 provided in the moving chamber 13 coming into contact with the push-up member 17. Is done.
The push-up member 17 is restricted from moving the operation member 5 toward the valve core b side when the locking step portion 17 a abuts against the protrusion 26 a of the main body 1.

For this reason, since the valve core b does not interfere with the pressing member 12, the valve core b is held in the closed state, and the air in the tire does not flow into the tire pressure checker A. In addition, due to the pressing force of the expansion member 16 in the moving member 14, the moving member 14 is held at the innermost part of the moving chamber 13 (the position most moved to the valve core b side) as shown in FIG. Is done.
In the state shown in FIG. 6A, when the first detection means 7 and the second detection means 8 are not detected at the innermost movement position of the detection body 6 in the main body 1, the tire pressure is checked. Is in a standby state. At this time, for example, the proper air pressure indicator lamp 9 and the improper air indicator lamp 10 are not displayed.

  When checking the tire air pressure, as shown in FIG. 5 (in the state of air pressure inspection), the upper surface (lid 15) of the operating member 5 in the direction of arrow n (valve core b side) shown in FIG. By pressing, it is possible to execute an air pressure check by glow display.

That is, when the upper surface (the lid body 15) of the operation member 5 is pressed with a finger, the pressing member 12 located on the inner end side of the operation member 5 interlocked with the lid body 15 operates the valve core b in the tire valve c. The axis b1 is pressed.
Thereby, the valve core b is opened, and the air in the tire flows into the support portion 1 that is the tire air pressure checker A, and flows into the main body portion 1 from the outer end opening c1 of the tire valve c that is an air passage. . Further, the air enters the passage 12 a of the pressing member 12 provided at the inner end of the operation member 5 in the check means 2 and fills the air chamber 19 in the operation member 5. Since the air chamber 19 is formed in communication with the moving chamber 13, the air filled in the air chamber 19 flows into the one side portion 13 a of the moving chamber 13. Accordingly, the moving member 14 moves in a predetermined manner. That is, the detection body 6 moves in a predetermined manner.

At this time, as shown in FIG. 5, the protrusion 26a of the main body 1 hits the locking step 17a of the push-up member 17, and the movement of the push-up member 17 is restricted and the push-up member 17 is pushed up by the air pressure. Then, the moving member 14 is pushed back against the expansion force of the expansion member 16.
As a result, the moving member 14 is displaced, and the detecting body 6 in the moving member 14 is interlocked, so that the detecting body 6 corresponds to the mounting position of the first detecting means 7 or the second detecting means 8.

At this time, if the tire air pressure is sufficient (appropriate), as shown in FIGS. 6-1 and 6-2 (c), the tire that has flowed into the one side 13a of the moving chamber 13 in the operation member 5 The moving member 14 that has moved in equilibrium with the air pressure of the air inside and the pressing force of the expansion member 16 moves to the maximum moving limit (outermost side in the moving chamber 13), and therefore is provided in the moving member 14. The detected body 6 moves within the detection range of the first detection means 7.
The second detection means 8 that activates the improper air pressure indicator lamp 10 is provided on the foremost side (the front side of the movement relative to the first detection means 7) where the moving member 14 moves in the moving chamber 13. In the middle of the movement of the moving member 14, first, the second detecting means 8 is operated to light or blink a dangerous color (for example, red) which is the inappropriate air pressure indicator lamp 10.

In this state, as described above, when the moving member 14 moves to the maximum movement limit (outermost side in the moving chamber 13), as shown in FIG. The detection signal of the detection means 7 is sent to the appropriate air pressure indicator lamp 9, the danger color (for example, red) display, which is the inappropriate air pressure indicator lamp 10 that has already been turned on or blinking, is turned off, and the appropriate pneumatic pressure indicator lamp 9 It switches to a certain safety color (for example, green) display, and lights up or blinks.
The light emission of the appropriate pneumatic pressure indicator lamp 9 is converged and amplified by the condensing lens 20 covering the outside, and irradiates the display portion 5a.
Further, the light reflected on the back surface of the display unit 5a and the light on the side surface of the condenser lens 20 are reflected by the reflector 21 and directed to the display unit 5a. Thereby, it can be checked that the tire air pressure is appropriate by the color display of the display unit 5a.

Next, when the tire air pressure is insufficient, the air flowing into the main body 1 from the valve core b flows through the air passage and flows into the air chamber 19 and the moving chambers 13 and 13a.
However, since the air pressure in the tire that has flowed into the air passage is weaker than the expansion force of the expansion member 16 in the movement chamber 13, the movement of the movement member 14 in the movement chamber 13 does not occur. Therefore, as described above, the second detection means 8 for starting the inappropriate air pressure indicator lamp 10 is provided on the foremost side (the front side of the movement relative to the first detection means 7) where the moving member 14 moves in the moving chamber 13. Therefore, during the movement of the moving member 14 caused by pushing the upper surface (lid 15) of the operating member 5 in the direction of arrow n (valve core b side) shown in FIG. 5, FIG. 6-2 (b) As shown in FIG. 4, the second detection means 8 is activated to light or blink a dangerous color (for example, red) which is the inappropriate air pressure indicator lamp 10.
And since the air pressure in the tire that has flowed into the air passage is weaker than the expansion force of the expansion member 16 in the movement chamber 13 and the movement of the movement member 14 in the movement chamber 13 does not occur, The color remains the dangerous color (for example, red) which is the inappropriate air pressure indicator lamp 10, and it can be visually checked that the tire air pressure is insufficient.
In this tire air pressure check, the attachment interval x between the first detection means 7 and the second detection means 8 is provided slightly smaller than the width y in the movement direction of the detection body 6, so that the detection body 6 has the attachment interval. The inconvenience that the first detection means 7 and the second detection means 8 are detected simultaneously or not detected at the intermediate portion when located at x is prevented. Further, the relationship between the mounting interval x and the width y in the moving direction of the detection body 6 is a configuration common to all the embodiments.

In the above-described example, it can be used even when there is only one air pressure indicator lamp 910. When the tire air pressure is sufficient (appropriate), the moving member 14 is at the maximum movement limit (the maximum in the moving chamber 13). 6-3 (c), the air pressure indicator 910 blinks on the basis of the detection signal of the first detection means 7 that has detected the detection body 6, thereby moving the tire air pressure. Can be confirmed visually.
If the tire air pressure is insufficient, the second detection means 8 detects the detection body 6 as shown in FIG. By lighting the air pressure indicator lamp 910 based on the detection signal of the detection means 8, it can be visually confirmed that the tire air pressure is inappropriate.
The emitted light of the pneumatic pressure indicator lamp 910 is converged and amplified by the condensing lens 20 covering the outside, and irradiates the display portion 5a.
Further, the light reflected on the back surface of the display unit 5a and the light on the side surface of the condenser lens 20 are reflected by the reflector 21 and directed to the display unit 5a. Thereby, it can be checked that the tire air pressure is appropriate by the color display of the display unit 5a.

  Note that the tire pressure varies depending on the type of vehicle such as a motorcycle, a small car, and a large truck. For this reason, the expansion force (for example, spring force) of the expansion member 16 is changed for each vehicle type, and the tire pressure checker A suitable for each vehicle type is designed. The material and structure of the expansion member 16 are not particularly limited as long as they are means that exhibit the above-described functions and effects.

According to this embodiment, it is possible to visually observe the luminous display emitted by the appropriate air pressure indicator 9 and the inappropriate air pressure indicator 10 through the display unit 5a, and further, the light from both the indicator lights 9 and 10 can be obtained using the condenser lens 20. By converging and amplifying, the light reflected on the back surface of the display unit 5a and the light on the side surface of the condenser lens 20 are reflected by the reflector 21 and directed toward the display unit 5a, thereby enabling visual observation in the daytime. Since the tire pressure of the tire pressure checker A can be checked, the visibility of the pneumatic pressure check can be improved regardless of the light and dark place.
Further, even in the case of a single pneumatic indicator lamp 910, the light emission of the pneumatic indicator lamp 910 is amplified using the condenser lens 20 and the reflector 21, thereby enabling visual observation in the daytime. Therefore, the visibility of the air pressure check by visual inspection can be improved.

  This improvement in visibility can be suitably realized when the tire pressure checker A is mounted on a tire tire valve c in various vehicles ranging from small vehicles such as motorcycles and light vehicles to large vehicles such as cargo trucks. In particular, even when the tire valve has an inner tire facing outward, such as a double tire such as a truck, the same tire pressure checker A is attached to the tire valve c of each tire, so Even the inner tires that are dark and difficult to see can easily check the air pressure of each tire by the glow of the light emitted from the tire pressure checker A.

  The operation member 5 movably attached to the main body 1 is configured such that the pressing member 12 opens the valve core b of the tire valve c only at the time of checking the tire pressure, and the pressing member 12 does not interfere at all during normal times other than at the time of checking the air pressure. Without closing the valve core b. For this reason, since the inside of the tire and the inside of the tire pressure checker A are normally shut off by the valve core b, even if the tire pressure checker A is broken, the air in the tire can be passed through the tire pressure checker A. Can be prevented from leaking to the outside, and safety can be ensured.

  The operation member 5 is moved by the air pressure of the air that has flowed into the one side portion 13a by pushing up the inner end side of the moving member 14 with the push-up member 17 provided in the one side portion 13a of the moving chamber 13 in the operation member 5. The initial resistance of movement of the member 14 can be reduced, and the accuracy of the air pressure check can be improved.

  In the process of pressing the tire pressure checker A with a finger during the tire pressure check, the inner end side of the moving member 14 is pushed up by the push-up member 17 provided in the one side portion 13a of the moving chamber 13 in the operation member 5. Accordingly, by moving the moving member 14 interlocked with this and the detection body 6 provided in the interior, a dangerous color (for example, red) which is an inappropriate air pressure indicator lamp 10 is turned on, so that an appropriate voltage of the power supply 11 is obtained. The tire pressure can be confirmed and it can be reliably determined whether the tire pressure check is possible.

  In the tire pressure checker A, the abutting portions of the tire valve c, the main body 1, the operating member 5, and the lid 15 are abutted through airtight members 4, 31, 18, 32, respectively. Therefore, after the air pressure check, the air pressure of the air introduced into the main body 1 returns the main body 1 to the outermost position farthest from the valve core b of the tire valve c, and the expansion member 16 causes the operating member 5 to move. Since the outer position also has a return assisting and holding spring function, it is not necessary to interpose a return spring for returning the operation member 5 to the outer position between the main body 1 and the operation member 5. For this reason, it is possible to reduce the pressing force when the tire pressure checker A is pressed with a finger during the tire pressure check, and the air pressure check can be easily and reliably performed.

The tire pressure detection method according to the present invention can also use other embodiment methods. The second embodiment has two pieces of first and second detection means 7 and 8, and The proper or improper display of the tire pressure can be controlled by the two proper air pressure indicators 9 and the improper air indicator light 10. In the case shown in FIG. Since the detection body 6 is detected, the current from the power supply flows through the circuit and is in a standby state. In this state, the operating member 5 is pushed, and the pressing member 12 operates the operating shaft b1 of the valve core b accordingly. As a result, as shown in FIG. When corresponding to one side (front side) of the means 7, the first and second detection means 7 and 8 do not detect the moving position of the detection body 6 (not detected), but based on this undetected signal By turning on (or blinking) the improper air pressure indicator lamp 10 indicating that the tire is improper, it can be visually confirmed that the tire air pressure is improper.
Further, as shown in FIG. 7C, when the detection body 6 is further moved by the tire air pressure and corresponds to the other side of the second detection means 8 (the side opposite to the front side), this second detection is performed. The means 8 detects the moving position of the detection body 6 and blinks (or lights) the appropriate air pressure indicator lamp 9 indicating that it is appropriate based on this detection signal, so that the tire air pressure is appropriate. It can be confirmed visually.
This lighting or flashing operation is defined as flashing the appropriate air pressure indicator light 9 of the other (for example, appropriate tire pressure) when the inappropriate air pressure indicator light 10 is turned on in one (for example, inappropriate tire pressure). By doing so, it is possible to easily discriminate between inappropriate tire pressure and appropriate tire pressure without making a mistake.

  In this tire pressure check, the attachment interval x between the first detection means 7 and the second detection means 8 is set larger than the width y in the movement direction of the detection body 6, so that the detection body 6 is attached to the attachment interval x. The inconvenience that the first detection means 7 and the second detection means 8 detect at the same time at the intermediate portion when the position is located at is prevented. Further, the relationship between the mounting interval x and the width y in the moving direction of the detection body 6 is a configuration common to all the embodiments.

In addition, as shown in FIG. 8, the third embodiment of the tire pressure detection method according to the present invention is not appropriate for detecting the appropriateness of the tire pressure, in addition to the appropriate detection area S for detecting the appropriateness of the tire pressure. The detection area is divided into a danger area D that requires replenishment of the tire pressure and a warning area W that prompts a warning, and the display corresponding to the danger area D and the warning area W is made different.
That is, when the tire air pressure is appropriate by the detection body 6 whose movement amount changes in the mounting axis direction of the valve core b depending on the pressure level of the introduced air, as shown in FIG. When the first detection means 7 detects the detection body 6 in the appropriate detection area S), the appropriate air pressure indicator lamp 9 is turned on or blinked, and the tire pressure is inappropriate for issuing a warning that the air pressure is slightly insufficient As shown in FIG. 8 (c), the first and second detection means 7 and 8 detect the detection body 6 at the intermediate movement position (warning zone W), and the both indicator lamps 9 are displayed with an inappropriate air pressure display. , 10 are lit or blinked, and in the direction of the mounting axis of the valve core b, as shown in FIG. 8 (b), the second detection means 8 moves the detection body 6 at the innermost movement position (danger zone D). When detected, tire pressure needs to be refilled The door is for displaying illuminated or blinked by improper air pressure indicator 10. As shown in FIG. 8A, when the first detection means 7 and the second detection means 8 are not detected at the innermost movement position of the main body 1 in the mounting axis direction of the valve core b, the tire pressure check is on standby. State. At this time, for example, the appropriate air pressure indicator 9 and the inappropriate air indicator light 10 are not displayed.

Further, the display of the tire air pressure can also be performed by a color change 29 due to shading of the appropriate air pressure indicator light 9 and the inappropriate air pressure indicator light 10, as shown in FIG.
That is, by performing color display of the appropriate air pressure indicator lamp 9 and the improper air pressure indicator lamp 10 using a gradation in which the density of the color changes stepwise, the inspection result from proper to inadequate tire pressure can be obtained. The stage can be confirmed at a glance.

In the tire pressure checker A according to the present invention, as shown in FIG. 10, when the power source 11 is energized, the button portion 15a provided on the lid 15 is moved in the direction indicated by the arrow (valve core b side). ), One terminal 11a of the power source 11 (the other terminal 11b is in contact with the other side electrode of the power source 11) moves to the power source 11 side and contacts this power source 11 with one side electrode. The start switch operation is performed by configuring so that energization occurs, and power supply from the power source 11 is not performed except for the tire air pressure test, so that the service life of the power source 11 can be extended as much as possible.
Further, when the one terminal 11a contacts the other side electrode of the power source 11, either the appropriate air pressure indicator lamp 9 or the inappropriate air pressure indicator lamp 10, or these indicator lights 9 and 10 simultaneously (inappropriate air pressure display). When the lamp 10 is turned on, the remaining voltage of the power source 11 can be confirmed.

Further, in the fourth embodiment of the tire pressure detection method according to the present invention, as shown in FIG. 11A, the detection means 78 is one and the appropriate air pressure indicator 9 and the inappropriate air pressure indicator 10 are controlled. In the case shown in FIG. 11A, the detection body 6 does not correspond to the detection means 78, and the switch operation is in an OFF state. 9 and the improper air pressure indicator lamp 10 do not light up.
Next, when the operating member 5 is pushed, and the pressing member 12 operates the operating shaft b1 of the valve core b along with this, the detection body 6 moves and is detected as shown in FIG. When it is not possible to cope with one side (front side) of the means 78, the movement position of the detection body 6 is not detected by the detection means 78 (not detected), but one terminal 11a is connected to the power source 11 by operating the button portion 15a. The switch operation is turned on in contact with the non-detected signal, and the inappropriate air pressure indicator lamp 10 is turned on based on the undetected signal, so that it can be visually confirmed that the tire air pressure is inappropriate.
Further, as shown in FIG. 11C, when the detection body 6 is further moved by the tire pressure and corresponds to the other side of the detection means 78 (the side opposite to the front side), the detection means 78 is detected. Detects the moving position of the detection body 6, the switch operation has already been turned ON, and the appropriate air pressure indicator lamp 9 is turned on based on this detection signal, so that the tire pressure can be visually confirmed. .

11-2 shows a case where the arrangement positions of the detection bodies 6 in FIG. 11-1 are different. In the case shown in FIG. 11-2 (a), the detection bodies 6 correspond to the detection means 78. Since the switch operation is in the OFF state, the power supply is not energized, and the appropriate air pressure indicator 9 and the inappropriate air pressure indicator 10 are not lit.
Next, even if the detection body 6 moves as shown in FIG. 11-2 (b) by pushing the operating member 5 and causing the pressing member 12 to operate the operating shaft b1 of the valve core b. When it is not possible to cope with the outside of the other side of the detection means 78 (the side opposite to the front side), the movement position of the detection body 6 is detected by the detection means 78, and the operation of the button portion 15a causes one terminal 11a to be connected. The switch operation is turned ON upon contact with the power source 11, and by turning on the inappropriate air pressure indicator lamp 10 based on the detection signal, it can be visually confirmed that the tire air pressure is inappropriate.
Further, as shown in FIG. 12-2 (c), when the detection body 6 further moves due to the tire air pressure and moves to a position exceeding the other side of the detection means 78 (the side opposite to the front side), Although the detection means 78 does not detect the moving position of the detection body 6 (not detected), the switch operation has already been turned ON, and the appropriate air pressure indicator lamp 9 is turned on based on this non-detection signal, so that the tire air pressure is increased. It can be confirmed visually that it is appropriate.

Further, in the fifth embodiment of the tire pressure detection method according to the present invention, as shown in FIG. 12A, there is only one detection means 78, and the tire pressure is determined to be appropriate or inappropriate by a single air pressure indicator 910. In the case shown in FIG. 12A, the detection body 6 does not correspond to the detection means 78 and the switch operation is OFF, so that the power supply is not energized. The air pressure indicator 910 does not light up.
Next, when the operating member 5 is pushed, and the pressing member 12 operates the operating shaft b1 of the valve core b along with this, the detection body 6 moves and is detected as shown in FIG. 12-1 (b). When it is not possible to cope with one side (front side) of the means 78, the movement position of the detection body 6 is not detected by the detection means 78 (not detected), but one terminal 11a is connected to the power source 11 by operating the button portion 15a. The switch operation is turned on in contact with the tire, and the pneumatic pressure indicator lamp 910 that indicates that the tire is improper is turned on (or flashes) based on the undetected signal. Can be confirmed.
Further, as shown in FIG. 12C, when the detection body 6 is further moved by the tire air pressure and corresponds to the other side portion of the detection means 78 (the side opposite to the front side), the detection means 78 is detected. Detects the moving position of the detection body 6, the switch operation has already been turned ON, and the pneumatic pressure indicator lamp 910 indicating that it is appropriate based on this detection signal blinks (or lights up), so that the tire pressure is increased. Can be confirmed visually.
In this lighting or blinking operation, when the air pressure indicator 910 is turned on in one operation (for example, tire pressure is inappropriate), the air pressure indicator 910 is turned on in the other operation (for example, tire pressure is appropriate). If it is defined that it blinks, it is possible to easily discriminate between inappropriate tire pressure and appropriate tire pressure without making a mistake.

12-2 shows a case where the arrangement position of the detection body 6 in FIG. 12-1 is different. In the case shown in FIG. 12-2 (a), the detection body 6 corresponds to the detection means 78. Since the switch operation is in an OFF state, the power supply is not energized and the air pressure indicator 910 is not lit.
Next, even if the detection body 6 moves, as shown in FIG. 12-2 (b), when the operating member 5 is pressed and the pressing member 12 operates the operating shaft b1 of the valve core b. When it is not possible to cope with the outside of the other side of the detection means 78 (the side opposite to the front side), the movement position of the detection body 6 is detected by the detection means 78, and the operation of the button portion 15a causes one terminal 11a to be connected. The switch operation is turned ON upon contact with the power source 11, and the pneumatic pressure indicator lamp 910 is turned on (or blinked) based on the detection signal, whereby it can be visually confirmed that the tire air pressure is inappropriate.
Further, as shown in FIG. 12-2 (c), when the detection body 6 further moves due to the tire air pressure and moves to a position exceeding the other side of the detection means 78 (the side opposite to the front side), Although the detection means 78 does not detect the moving position of the detection body 6 (not detected), the switch operation has already been turned ON, and the pneumatic indicator lamp 910 that indicates appropriateness based on this detection signal blinks (or lights up). ), It can be visually confirmed that the tire pressure is appropriate.
In this lighting or blinking operation, when the air pressure indicator 910 is turned on in one operation (for example, tire pressure is inappropriate), the air pressure indicator 910 is turned on in the other operation (for example, tire pressure is appropriate). If it is defined that it blinks, it is possible to easily discriminate between inappropriate tire pressure and appropriate tire pressure without making a mistake.

Further, the sixth embodiment of the tire pressure detection method according to the present invention has two of the first and second detection means 7 and 8, and the tire pressure is appropriate or inappropriate by one air pressure indicator 910. In the case shown in FIG. 13 (a), since the second detection means 8 detects the detection body 6, the current from the power source is based on the detection signal of the second detection means. It is in a standby state through the circuit. When the operating member 5 is pushed from this state, and the pressing member 12 operates the operating shaft b1 of the valve core b in accordance with this, the detecting body 6 moves and the main body 1 as shown in FIG. The first and second detection means 7 and 8 do not detect the movement position of the detection body 6 (not detected), but the air pressure indicator lamp 910 is detected based on this non-detection signal. By lighting up, it can be visually confirmed that the tire air pressure is inappropriate.
Further, as shown in FIG. 13 (c), when the detection body 6 is further moved by the tire pressure and corresponds to the outermost movement position of the detection body 6 in the main body 1, the first detection means 7 causes the detection body 6 to move. By detecting and blinking the air pressure indicator lamp 910 based on this detection signal, it can be visually confirmed that the tire air pressure is appropriate.
In this lighting or blinking operation, when the air pressure indicator 910 is turned on in one operation (for example, tire pressure is inappropriate), the air pressure indicator 910 is turned on in the other operation (for example, tire pressure is appropriate). If it is defined that it blinks, it is possible to easily discriminate between inappropriate tire pressure and appropriate tire pressure without making a mistake.

It is a longitudinal cross-sectional view of the LED light emission type tire pressure checker of this invention. It is a front view which decomposes | disassembles and shows each member of the tire pressure checker in FIG. It is explanatory drawing which decomposes | disassembles and shows the check means of the tire pressure checker in FIG. FIG. 4 is an irregular cross-sectional view taken along a line YY in FIG. 3 of the tire pressure checker in FIG. 1 and shows a state before a tire pressure test. FIG. 5 is a cross-sectional view showing a state during a tire air pressure test in the tire air pressure checker in FIG. 4. FIG. 5 is a cross-sectional view showing an appropriate tire pressure state in the tire pressure checker in FIG. 4. FIG. 6 is an explanatory diagram showing a tire pressure test state in the tire pressure checker in FIGS. FIG. 7 is an explanatory diagram showing a tire pressure test state when there is one indicator lamp in the tire pressure detection method in FIG. It is explanatory drawing which shows the 2nd Example of the tire pressure detection method which concerns on this invention. It is explanatory drawing which shows the 3rd Example of the tire pressure detection method which concerns on this invention. It is explanatory drawing which shows the example performed by the color change by the shade of an indicator lamp in the tire air pressure detection method which concerns on this invention. It is explanatory drawing which shows the example which performs a power supply check in the tire pressure checker which concerns on this invention. It is explanatory drawing which shows the 4th Example of the tire pressure detection method which concerns on this invention. It is explanatory drawing which shows the tire pressure test state in case the arrangement position of a detection body differs in the tire pressure detection method in FIGS. It is explanatory drawing which shows the 5th Example of the tire pressure detection method which concerns on this invention. It is explanatory drawing which shows a tire pressure test state in case the arrangement position of a detection body differs in the tire pressure detection method in FIGS. It is explanatory drawing which shows the 6th Example of the tire pressure detection method which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main-body part 2 Check means 5 Operation member 6 Detector 7 First detection means 8 Second detection means 9 Appropriate air pressure indicator 10 Inappropriate air pressure indicator 78 Detection means 910 Air pressure indicator A Tire pressure checker b Valve core c Tire valve

Claims (9)

In a tire pressure detection method using a tire pressure checker provided with a main body portion that can be attached to the outer end portion of a tire valve having a valve core therein and a check means provided in the main body portion,
The operation member in the check means is actuated toward the mounting axis direction of the valve core to open the valve core, the air in the tire is introduced into the main body, and the amount of movement depends on the pressure of the introduced air. The detection body that changes in the mounting axis direction of the valve core is detected by the detection means,
Depending on the detection signal of the detection means according to the change in the amount of movement of the detection body, an appropriate air pressure indicator lamp that is appropriate for the tire air pressure or an inappropriate air pressure indicator light that is not appropriate for the tire air pressure is turned on or A method for detecting tire air pressure using an LED light emitting tire air pressure checker, wherein the LED light emission is displayed on the outside of the main body. In a tire pressure detection method using a tire pressure checker provided with a main body portion that can be attached to the outer end portion of a tire valve having a valve core therein and a check means provided in the main body portion,
The operation member in the check means is actuated toward the mounting axis direction of the valve core to open the valve core, the air in the tire is introduced into the main body, and the amount of movement depends on the pressure of the introduced air. The detection body that changes in the mounting axis direction of the valve core is detected by the detection means,
When the tire air pressure is appropriate, the air pressure indicator light is turned on or blinked by the detection signal of the detecting means according to the change in the amount of movement of the detection body, and when the tire air pressure is inappropriate, the air pressure indicator light is turned on the tire. A tire pressure detection method using an LED light-emitting tire pressure checker, wherein a display different from that when the air pressure is appropriate is blinked or lit and displayed on the outside of the main body. In a tire pressure detection method using a tire pressure checker provided with a main body portion that can be attached to the outer end portion of a tire valve having a valve core therein and a check means provided in the main body portion,
The operation member in the check means is actuated toward the mounting axis direction of the valve core to open the valve core, the air in the tire is introduced into the main body, and the amount of movement depends on the pressure of the introduced air. By the detection body that changes in the direction of the valve core mounting axis,
When the tire air pressure is appropriate, the first detection means detects the moving position of the detection body in the main body and turns on or blinks the appropriate air pressure indicator lamp,
When the tire air pressure is inappropriate, the second detection means detects the movement position of the detection body in the main body and turns on or blinks the inappropriate air pressure indicator lamp. Tire pressure detection method by checker. In a tire pressure detection method using a tire pressure checker provided with a main body portion that can be attached to the outer end portion of a tire valve having a valve core therein and a check means provided in the main body portion,
The operation member in the check means is actuated toward the mounting axis direction of the valve core to open the valve core, the air in the tire is introduced into the main body, and the amount of movement depends on the pressure of the introduced air. By the detection body that changes in the direction of the valve core mounting axis,
When the tire pressure is appropriate, the first detection means detects the outermost movement position of the detection body in the main body, and the appropriate air pressure indicator lamp is turned on or blinked,
When the tire pressure is inappropriate, the detection body in the main body moves to the intermediate movement position, so the first detection means and the second detection means have not detected the detection body, Turn on or blink the inappropriate air pressure indicator,
An LED light emitting tire pressure checker characterized in that when the second detecting means detects the innermost movement position of the detection body in the main body in the mounting axis direction of the valve core, the tire pressure check is in a standby state. Tire pressure detection method by.   The improper detection area for detecting improper tire pressure is divided into a danger area that requires replenishment of the tire pressure and a warning area that prompts a warning, and the display corresponding to the danger area and the warning area is made different. The tire pressure detection method according to claim 1, wherein the tire pressure detection method is performed.   The tire pressure detection according to claim 1, 2 or 4, characterized in that an air pressure indicator lamp for indicating appropriateness of tire pressure is lit or blinking, and an air pressure indicator light for indicating improperness of tire pressure is flashed or lit. Method.   2. The tire pressure detection method according to claim 1, wherein the tire pressure is displayed by a change in color depending on the shade of the appropriate pressure indicator lamp and the improper pressure indicator lamp. A tire pressure checker that is provided on a tire and is attached to a tire valve having a valve core therein, and a main body portion that is provided so that one side portion can be attached to an outer end portion of the tire valve in a mounting axis direction of the valve core, and the main body And a tire pressure checker provided with a check means provided in the section,
The check means is an operation member attached to the main body portion so as to be movable with respect to the mounting axis direction of the main body portion, and is movably attached to the operation member and introduced into the main body portion when the valve core is opened. A detecting body whose movement amount changes in the mounting axis direction of the valve core according to the pressure level of the air, a detecting means for detecting a moving position of the detecting body provided in the moving direction of the detecting body, and connected to the detecting means An appropriate air pressure indicator lamp and an improper air pressure indicator light that are turned on or blinking when the detecting means detects the detection body, and a power source that supplies power to the detecting means and the appropriate air pressure indicator light and the improper air pressure indicator light. An LED light emitting tire pressure checker characterized by comprising: A tire pressure checker that is provided on a tire and is attached to a tire valve having a valve core therein, and a main body portion that is provided so that one side portion can be attached to an outer end portion of the tire valve in a mounting axis direction of the valve core, and the main body And a tire pressure checker provided with a check means provided in the section,
The check means is an operation member attached to the main body portion so as to be movable with respect to the mounting axis direction of the main body portion, and is movably attached to the operation member and introduced into the main body portion when the valve core is opened. A detection body whose movement amount changes in the direction of the mounting axis of the valve core according to the pressure level of the air, and first detection means and second detection means for detecting the movement position of the detection body provided side by side in the movement direction of the detection body Means, an appropriate air pressure indicator lamp that lights up or blinks when the first detection means detects the detection body, and the second detection means is connected to the second detection means. An improper air pressure indicator that lights or blinks when the detection object is detected; a power source that supplies power to the first air detector and the second air detector; LED light-emitting tire pressure checker, wherein Rukoto.

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