JP2009128108A - Pressure gage, and sealing pump-up device equipped therewith - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pressure gage capable of suppressing initial position deviation between a scale and a pointer, and a sealing pump-up device equipped with the pressure gage. <P>SOLUTION: When the pointer 80 of the pressure gage 78 is deviated from the initial position (zero-position of the scale 86A), a transparent plate 98 is dismounted from a pressure gage body 82. Further, a screw member 94 is loosened, and a scale plate 86 is rotated around a shaft member 84 so that the pointer 80 indicates the zero-position of the scale 86A in this state, and the screw member 94 is fastened on a position where the pointer 80 agrees with the zero-position of the scale 86A to thereby fix the scale plate 86. Hereby, the pointer 80 is corrected to indicate the zero-position of the scale 86A as shown in figure 1(B). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention provides a pressure gauge for measuring pressure and a sealing agent for sealing a punctured pneumatic tire into the pneumatic tire, and then supplying pressurized air into the pneumatic tire to The present invention relates to a sealing / pump-up device that increases internal pressure and measures the internal pressure of a pneumatic tire with a pressure gauge.

  Patent Document 1 describes a pressure gauge that measures pressure by placing a rotary pointer on a scale plate fixed to the apparatus body and reading a scale indicated by the rotated pointer.

JP-A-11-183295

However, in this pressure gauge, since the scale plate is fixed to the apparatus main body, if the scale provided on the scale plate is shifted from the initial position of the pointer, the measurement error becomes large.
In view of the above facts, the present invention has an object to suppress the deviation of the initial positions of the scale and the pointer.

  A pressure gauge according to a first aspect of the present invention includes a rotary pointer supported by an apparatus main body, a scale that indicates a pressure value corresponding to a rotation position of the pointer, and a rotation center of the pointer. And a scale plate supported by the apparatus main body so as to be rotatable about the center axis, and fixing means for fixing the scale board to the apparatus main body.

According to the above configuration, when the pressure is measured, the rotary pointer rotates and stops at the rotation position corresponding to the pressure. And a pressure is measured by reading the scale of the scale board corresponding to the rotation position of a pointer.
Here, when the scale provided on the scale board and the initial position of the pointer are deviated from each other, even if the scale corresponding to the rotation position is read, the measurement error becomes large.

  However, if the initial position of the scale and the pointer provided on the scale is shifted, rotate the scale around the center of rotation of the pointer, align the initial position of the scale and the pointer, and fix the scale with the fixing means. In place. In this way, the deviation between the initial positions of the scale and the pointer can be suppressed.

  A pressure gauge according to a second aspect of the present invention is the pressure gauge according to the first aspect, wherein the fixing means passes through the adjustment hole formed in the scale plate and the adjustment hole and is screwed into the apparatus main body. And a fixing member that fixes the scale plate between the apparatus main body and the fixing plate.

  According to the above configuration, the fixing member penetrating the adjustment hole formed in the scale plate is screwed into the apparatus main body, thereby fixing the scale plate between the apparatus main body and the fixing member. In this way, the rotary dial that rotates with a simple configuration can be fixed.

  A pressure gauge according to a third aspect of the present invention is the pressure gauge according to the second aspect, wherein the adjustment hole extends along an arc centered on a central axis of the pointer.

  According to the above configuration, the adjustment hole formed in the dial plate extends along an arc centered on the central axis of the pointer. For this reason, the dial can be rotated along the adjustment hole by loosening the fixing member penetrating the adjustment hole.

  According to a fourth aspect of the present invention, there is provided a sealing / pump-up device connected to the air supply means for supplying pressurized air and the pressurized supply to which the pressurized air from the air supply means is supplied. An injection unit provided with a liquid chamber; a liquid agent container connected to the injection unit; containing a sealing agent; and having a discharge port for discharging the sealing agent into the pressurized liquid supply chamber; and one end of the liquid agent container A hose member that is attached to an injection unit and communicates with the pressurized liquid supply chamber, the other end of which can communicate with a tire valve of a pneumatic tire, and a hose member provided at the tip of the hose member and connected to the tire valve A valve adapter provided in a possible manner and a pressure gauge according to any one of claims 1 to 3 for measuring an internal pressure of the pneumatic tire.

According to the above configuration, first, the valve adapter provided at the other end of the hose member is connected to the valve of the punctured tire. And an air supply means is operated and pressurized air is supplied to the pressurized liquid supply chamber of an injection | pouring unit.
The pressurized air supplied to the pressurized liquid supply chamber pressurizes the sealing agent discharged from the discharge port of the liquid agent container and feeds it into the hose member, thereby supplying the sealing agent into the pneumatic tire through the valve adapter.

Further, after the sealing agent is supplied, pressurized air is supplied into the tire through the hose member and the valve adapter. And the internal pressure of a pneumatic tire is measured with the pressure gauge of any one of Claims 1-3.
As described above, since the internal pressure of the pneumatic tire is measured by the pressure gauge according to any one of claims 1 to 3 in which the deviation between the initial positions of the scale and the pointer is suppressed, the measurement error can be reduced.

  According to the present invention, it is possible to suppress the deviation between the initial positions of the scale and the pointer.

  A sealing / pump-up device according to an embodiment of the present invention will be described with reference to FIGS.

(overall structure)
As shown in FIG. 4, a tire sealing / pump-up device (hereinafter simply referred to as a “sealing device”) according to an embodiment of the present invention is a pneumatic tire (hereinafter simply referred to as a “vehicle”) mounted on a vehicle such as an automobile. When the “tire” is punctured, the tire is repaired with the sealing agent 32 (see FIG. 5) and the internal pressure is repressurized (pumped up) to a predetermined reference pressure without replacing the tire and the wheel. Is.

  The sealing device 10 includes a compressor unit 12 as air supply means. The compressor unit 12 includes a motor, an air pump, a power circuit, and the like, and extends from the power circuit to the outside of the unit. An outgoing power cable (not shown) is provided. For example, by inserting a plug provided at the tip of the power cable into a socket of a cigarette lighter installed in the vehicle, power can be supplied to a motor or the like through a power circuit by a battery mounted on the vehicle. Here, the compressor unit 12 can generate pressurized air having a pressure (for example, 300 kPa or more) higher than a reference pressure defined for each type of the tire 14 to be repaired by the air pump.

  As shown in FIG. 5, the sealing device 10 is provided with a liquid agent container 18 containing a sealing agent 32 and an injection unit 20 to which the liquid agent container 18 is connected. A substantially cylindrical neck portion 26 protruding downward is integrally formed at the lower end portion of the liquid container 18. The neck portion 26 is formed to have a smaller diameter than the main body portion of the container on the upper end side. An outlet 29 for allowing the sealing agent 32 to flow out to the outside (pressurized liquid supply chamber 40 described later) is formed at the lower end of the neck 26, and the sealing agent 32 is provided at the outlet 29 of the neck 26. An aluminum seal 30 as an example of a sealing member for sealing (accommodating) the liquid medicine container 18 is disposed. The outer peripheral edge of the aluminum seal 30 is fixed to the peripheral edge of the outlet 29 of the neck 26 over the entire periphery by adhesion or the like. A stepped portion 28 is formed in the middle portion of the neck portion 26 so as to extend to the outer peripheral side.

  Here, the liquid container 18 is molded from various resin materials having gas barrier properties and metal materials such as aluminum alloys. The liquid agent container 18 is filled with a slightly larger amount of the sealing agent 32 than a prescribed amount (for example, 200 g to 400 g) according to the type and size of the tire 14 to be repaired by the sealing device 10. In the liquid agent container 18 of the present embodiment, the sealing agent 32 is filled without a space without providing a space. However, in order to prevent deterioration due to oxidation or the like of the sealing agent 32, an inert gas such as Ar at the time of shipment. A small amount of the sealing agent 32 may be enclosed in the liquid agent container 18.

  In the sealing device 10 of the present embodiment, when the liquid container 18 is set upright on the upper side of the injection unit 20, the sealing agent 32 in the liquid container 18 pressurizes the aluminum seal 30 of the liquid container 18 by its own weight. It becomes a state.

  As shown in FIG. 5, the injection unit 20 includes a unit main body portion 34 formed in a substantially bottomed cylindrical shape having an open upper end side, and a disk shape projecting from the lower end portion of the unit main body portion 34 to the outer peripheral side. The leg portion 36 is integrally provided. In the unit main body 34, the lower end side of the neck portion 26 of the liquid container 18 is inserted on the inner peripheral side, and the upper end surface is welded to the step portion 28 of the neck portion 26 by a method such as spin welding. The leg portion 36 is an example of an overhang portion.

  A substantially cylindrical pressurized liquid supply chamber 40 that communicates with the inside of the liquid container 18 is provided in the unit main body 34 when the aluminum seal 30 is pierced (perforated). In the injection unit 20, a substantially cylindrical inner peripheral cylindrical portion 42 is coaxially formed on the inner peripheral side of the unit main body 34. A jig insertion hole 44 having a circular cross section passing through between the lower end surface of the injection unit 20 and the upper end surface of the inner peripheral cylindrical portion 42 is formed at the center of the inner peripheral cylindrical portion 42.

  As shown in FIGS. 3 and 4, the sealing device 10 is provided with a pressure hose 24 extending from the compressor unit 12 toward the injection unit 20. The pressure hose 24 has a base end portion thereof. It is connected to an air compressor in the compressor unit 12.

  As shown in FIG. 5, the injection unit 20 is formed with a cylindrical air supply pipe 52 that extends from the outer peripheral surface of the inner peripheral cylindrical portion 42 to the outer peripheral side through the unit main body 34. One end portion of the pressure-resistant hose 24 is connected to the distal end portion on the outer peripheral side of the air supply pipe 52 via a nipple 54.

  As shown in FIG. 3, the compressor unit 12 that supplies pressurized air to the pressurized liquid supply chamber 40 (see FIG. 5) through the pressure hose 24 measures the pressure of the supplied pressurized air. A pressure gauge 16 is provided. Details of the pressure gauge 16 will be described later.

  As shown in FIG. 5, the base end portion of the air supply pipe 52 is joined to the outer peripheral surface of the inner peripheral cylindrical portion 42, and a plurality of (this embodiment) drilled in the peripheral wall portion of the inner peripheral cylindrical portion 42. In the form, two pieces) are connected to the jig insertion hole 44 through the throttle portions 56.

  The throttle portions 56 of the inner peripheral cylindrical portion 42 are each formed as a through hole with a circular cross section and a constant inner diameter over the entire length, and the inner diameter is smaller than the inner diameter of the air supply pipe 52. The inner peripheral end of the throttle portion 56 opens to an intermediate portion on the inner peripheral surface of the inner peripheral cylindrical portion 42, and a circular air supply port 58 is formed on the inner peripheral surface of the inner peripheral cylindrical portion 42.

  Here, the pressure hose 24, the air supply pipe 52, and the throttle portion 56 are air supply paths for supplying compressed air generated by an air compressor in the liquid container 18 or the pressurized liquid supply chamber 40. 60.

(Perforated member)
As shown in FIG. 5A, a shaft portion 63 of a piercing member 62 formed of synthetic resin is inserted into the jig supply hole 44 side of the jig insertion hole 44. As shown in FIGS. 5B and 5C, the shaft portion 63 has a substantially cylindrical cross-sectional shape and is provided with a plurality of slits extending from the lower end to the upper end, and 4 in the circumferential direction. It is divided. This shaft part 63 can change the diameter of the shaft part 63 by inclining the divided parts 63A divided into four in the same direction. In addition, the diameter change of the shaft portion 63 becomes maximum at the lower end of the shaft portion 63.

  The piercing member 62 is provided with a disk-shaped large-diameter portion 64 that extends radially outward at the upper end portion of the shaft portion 63. At the outer peripheral end of the upper surface of the large-diameter portion 64, a projecting perforated portion 66 for easily breaking through the aluminum seal 30 is formed continuously.

  As shown in FIGS. 5A and 5B, a protrusion 44 </ b> A that protrudes in the direction of narrowing the diameter of the jig insertion hole 44 is formed at the opening of the jig insertion hole 44 on the pressurized liquid supply chamber side. Is formed. Further, the inserted shaft portion 63 is provided with a protrusion 63B protruding from the outer peripheral surface of the split body 63A below the protrusion 44A, and the protrusion member 44A causes the piercing member 62 to be on the upper side ( In the present embodiment, movement to the aluminum seal 30 side is prevented. Thereby, the state in which the piercing member 62 is disposed on the pressurized liquid supply chamber 40 side of the jig insertion hole 44 is maintained. In this state, the front end surface of the large diameter portion 64 faces the center of the front surface of the aluminum seal 30, and there is a slight gap between the large diameter portion 64 and the aluminum seal 30.

  As shown in FIG. 5, a cylindrical gas-liquid supply pipe 74 is integrally formed in the injection unit 20 so as to penetrate the peripheral wall portion of the unit main body 34. A proximal end portion of a red joint hose 78 is connected to a distal end portion on the outer peripheral side of the gas-liquid supply pipe 74 via a nipple 76. A valve adapter 70 that is detachably connected to a tire valve (not shown) of the tire 14 is provided at the tip of the joint hose 78. The proximal end side of the gas-liquid supply pipe 74 is inserted into the pressurized liquid supply chamber 40. As a result, the joint hose 78 communicates with the pressurized liquid supply chamber 40 through the gas-liquid supply pipe 74.

(Jig)
Next, the jig 82 used when the sealing agent 32 flows out from the sealing device 10 will be described.

  As shown in FIG. 6, the jig 82 (in this embodiment, made of synthetic resin, such as PP, PE, nylon, etc.) includes a rod-shaped insertion portion 84 that is inserted into the jig insertion hole 44, and a proximal end portion of the insertion portion 84. A substantially rectangular base portion 86 is provided. The base portion 86 is an example of an extending portion.

  The insertion portion 84 is formed with a jig communication path 88 that extends from the distal end surface toward the base portion 86 and bends and extends toward the outer peripheral side at the intermediate portion. An annular communication groove 90 serving as an air passage is formed in the opening portion of the jig communication passage 88 on the outer peripheral surface of the insertion portion 84.

  On the outer peripheral surface of the insertion portion 84, insertion grooves are formed on the upper side and the lower side of the communication groove 90, and O-rings 96 are inserted into the pair of insertion grooves.

  As shown in FIGS. 6C and 6D, the outer contour of the distal end portion 85 of the insertion portion 84 has a shape in which the diameter increases from the distal end toward the base portion 86, that is, the distal end portion 85 has a substantially conical shape. ing. A stepped portion 85A is formed at the boundary between the distal end portion 85 and the other portion of the insertion portion 84, and the diameter of the outer peripheral end of the stepped portion 85A is larger than the diameter of the inner peripheral end of the ridge portion 44A. It is said that. The insertion portion 84 is formed with four slits 84A extending from the distal end of the distal end portion 85 toward the base portion 86 at regular intervals in the circumferential direction of the insertion portion 84. It terminates between the portion 85A and the upper O-ring 96. For this reason, the front-end | tip part 85 is divided | segmented into the four division bodies 85B in the circumferential direction, and the diameter of the front-end | tip part 85 can be changed by inclining this division body 85B to the same direction, respectively. The diameter change of the distal end portion 85 becomes maximum at the distal end of the distal end portion 85.

  When the distal end portion 85 passes through the jig insertion hole 44, it has a diameter change (reduced diameter) to the extent that it can pass through the jig insertion hole 44. Even if a force in the pull-out direction is applied to the jig 82 after the front end portion 85 has passed through the jig insertion hole 44, the stepped portion 85A is caught on the edge 44B of the jig insertion hole 44, so that the jig 82 moves in the pull-out direction. Be blocked.

  Note that the position of the jig 82 when the stepped portion 85A and the edge portion 44B are caught is the drilling of the jig 82 when the punching portion 66 of the punching member 62 pushed out by the jig 82 breaks (perforates) the aluminum seal 30. The positions of the stepped portion 85A of the distal end portion 85 and the edge portion 44B are set so as to be closer to the insertion opening side of the jig insertion hole 44 than the position (in this embodiment, the lower side of the apparatus).

  The base portion 86 is integrated with the elastically deformable support column 83 standing vertically from the base portion 86, near the both ends of the surface on which the insertion portion 84 is formed, on the distal end side of the support column 83 and on the side surface on the insertion portion 84 side. And a triangular claw 83A as viewed from the side.

  As shown in FIGS. 6 (A) and 6 (C), the diameter R1 of the leg portion 36 of the injection unit 20 is set to be substantially the same as the interval L1 of the support 83, and is larger than the interval L2 of the claw 83A. Widely set.

  The length of the insertion portion 84 is slightly longer than the dimension from the lower end of the jig insertion hole 44 to the aluminum seal 30. Thus, when the entire insertion portion 84 of the jig 82 is inserted into the jig insertion hole 44, the punching member 62 is reliably pushed out of the jig insertion hole 44 as shown in FIGS. The upper end portion of 82 enters the liquid container 18.

  When the entire insertion portion 84 is inserted into the jig insertion hole 44, the communication groove 90 of the insertion portion 84 and the air supply port 58 of the throttle portion 56 are aligned along the axial direction. Thereby, the air supply path 60 communicates with the jig communication path 88 of the jig 82 through the communication groove 90.

  In addition, the pair of O-rings 96 are in pressure contact with the inner peripheral surface of the jig insertion hole 44 over the entire circumference in a state where the insertion portion 84 is inserted into the jig insertion hole 44. As a result, the jig insertion hole 44 is sealed by the insertion portion 84 and the pair of O-rings 96 above and below the air supply port 58, respectively.

  Note that the position of the jig 82 when the claw 83A and the edge of the leg portion 36 are hooked is such that the distal end side of the insertion portion 84 can be maintained in a state where it can enter the liquid container 18. The position of the upper claw 83A is set.

(Main part configuration)
Next, the pressure gauge 16 arranged in the compressor unit 12 will be described.
As shown in FIG. 2, the pressure gauge 16 is provided with a rotating pointer 80 that rotates according to the pressure to be measured. Is formed. Further, the pressure gauge main body 82 is provided with a columnar engagement convex portion 100 that fits into the circular hole 80A and supports the pointer 80 so as to be rotatable.

  In addition, a circular scale plate 104 having a scale 104A for indicating a pressure value corresponding to the rotation position of the pointer 80 is provided, and the central portion of the circular scale plate 104 is provided with a scale plate 104. A circular hole 106 penetrating the front and back is formed. Further, the pressure gauge main body 82 is provided with an outer peripheral circular shaft member 102 that has the same central axis as the rotation central axis of the pointer 80 and that fits into the circular hole 106 and rotatably supports the scale plate 104. It has been. A cylindrical receiving member 108 that supports the scale plate 104 from the lower surface is provided below the shaft member 102 with a diameter larger than that of the shaft member 102.

  The scale plate 104 is formed with two adjustment holes 92 extending in an arc shape around the shaft member 102 in a state where the scale plate 104 is pivotally supported by the shaft member 102. Furthermore, a screw member 94 that penetrates through each adjustment hole 92 and is screwed into a mounting portion 110 formed in the pressure gauge main body 82 is provided.

  That is, in a state where the two screw members 94 are loosened, the play portion of the screw member 94 and the adjustment hole 92 and the scale plate 104 rotate along the circular shape of the adjustment hole 92 with the shaft member 102 as the rotation axis. Further, when the two screw members 94 are tightened into the mounting portion 110, the scale plate 104 is fixed.

  Further, a circular transparent plate 98 that fits into the stepped portion 82A of the pressure gauge main body 82 and protects the scale board 104, the pointer 80, etc. is provided with the scale board 104, the pointer 80, etc. attached to the pressure gauge main body 82. It has been.

(Action / Effect)
Next, an operation procedure for repairing the punctured tire 14 using the sealing device 10 according to the present embodiment will be described.
As shown in FIG. 1, when puncture occurs in the tire 14 (see FIG. 4), first, the operator first sets the pointer 80 of the pressure gauge 16 to the initial position (0 position of the scale 104 </ b> A in this embodiment). Check if it is off. As shown in FIG. 1A, when the zero position of the pointer 80 and the scale 104A is shifted, the transparent plate 98 is removed from the pressure gauge main body 82.

  Further, the screw member 94 is loosened, and in this state, the dial plate 104 is rotated around the shaft member 102 so that the pointer 80 points to the zero position of the scale 104A, and the pointer 80 is aligned with the zero position of the scale 104A. The scale plate 104 is fixed by tightening the screw member 94 at the position. Thereby, as shown in FIG. 1B, the pointer 80 is corrected so that the 0 position of the scale 104A is set.

  Next, as shown in FIG. 7, the operator inserts the insertion portion 84 of the jig 82 into the jig insertion hole 44 of the sealing device 10. When the insertion portion 84 presses the piercing member 62, the shaft portion 63 of the piercing member 62 changes in diameter (reduced diameter), and the protruding portion 63B gets over the protruding portion 44A. Then, the piercing member 62 moves toward the aluminum seal 30 while being pressed by the distal end portion 85 of the insertion portion 84. The diameter-reduced distal end portion 85 passes through the jig insertion hole 44 and then returns to its original diameter due to its own elasticity.

  When the claw 83A exceeds the leg portion 36, the inclined surface of the claw 83A is pushed by the outer peripheral surface 36A of the leg portion 36 and the support column 83 is elastically deformed, but the base portion 86 of the jig 82 is the leg of the injection unit 20. When the claw 83A passes through the outer peripheral surface 36A of the leg portion 36 and is inserted until it hits the portion 36, the column 83 returns to its original elasticity, and the claw 83A is caught on the edge of the leg portion 36, and the jig 82 is pulled out. To prevent movement.

  As a result, as shown in FIG. 8, the piercing portion 66 of the piercing member 62 pushed by the insertion portion 84 penetrates the aluminum seal 30 and is pushed into the container, and the distal end portion 85 of the insertion portion 84 is inside the liquid container 18. Get in. At this time, the jig 82 presses the pair of O-rings 96 arranged on the outer peripheral surface of the insertion portion 84 against the inner peripheral surface of the jig insertion hole 44, and the insertion portion 84 is an end portion on the inlet side of the jig insertion hole 44. The O-ring 96 disposed on the upper side of the insertion portion 84 is passed through the inner peripheral side of the air supply port 58 during the movement.

  Thereafter, the sealing device 10 is disposed, for example, on the road surface or the like so that the leg portion 36 is downward and the liquid agent container 18 is upward.

  Further, when the insertion portion 84 of the jig 82 is inserted into the jig insertion hole 44 of the injection unit 20, as shown in FIG. 7, the distal end portion 85 of the insertion portion 84 protrudes from the distal end of the inner peripheral cylindrical portion 42 and is perforated. The member 62 passes through the hole 31 formed in the aluminum seal 30 and enters the liquid agent container 18. Further, the sealing agent 32 in the liquid container 18 flows into the pressurized liquid supply chamber 40 through the hole 31.

  Next, the compressor unit 12 is operated. As shown in FIG. 8, the compressed air generated by the compressor unit 12 is supplied into the liquid agent container 18 through the air supply path 60 and the jig communication path 88.

  Further, when compressed air is supplied into the liquid agent container 18, the compressed air floats above the sealing agent 32 in the liquid agent container 18 to form a space (air layer) on the sealing agent 32 in the liquid agent container 18. To do. The sealing agent 32 pressurized by the air pressure from the air layer is supplied to the pressurized liquid supply chamber 40 through the hole 31 formed in the aluminum seal 30, and passes from the inside of the pressurized liquid supply chamber 40 through the joint hose 78. It is injected into the pneumatic tire 14.

  In addition, after all the sealing agent 32 in the liquid container 18 is discharged, the sealing agent 32 in the pressurized liquid supply chamber 40 is pressurized and supplied into the pneumatic tire 14 through the joint hose 78. Thereafter, when all the sealing agent 32 is discharged from the pressurized liquid supply chamber 40 and the joint hose 78, the compressed air is injected into the tire 14 through the liquid agent container 18, the pressurized liquid supply chamber 40, and the joint hose 78. Is done.

  Next, when it is confirmed by the pressure gauge 16 that the internal pressure of the tire 14 has become the specified pressure, the operator turns off the power switch, stops the compressor unit 12, and removes the valve adapter 70 from the tire valve.

  The worker travels preliminarily for a certain distance (for example, 10 km) using the tire 14 injected with the sealing agent 32 within a certain time after the completion of the inflation of the tire 14. As a result, the sealing agent 32 is uniformly diffused inside the tire 14, and the sealing agent 32 is filled in the puncture hole, thereby closing the puncture hole.

  After completion of the preliminary travel, as shown in FIG. 4, the operator connects the valve adapter 22 of the air hose 50 to the tire valve of the tire 14 and re-measures the internal pressure of the tire 14 with the pressure gauge 16 to obtain the specified pressure. If not, the compressor unit 12 is restarted to pressurize the tire 14 to a specified internal pressure. Thereby, the puncture repair of the tire 14 is completed, and the tire 14 can be used to travel at a constant speed or less (for example, 80 km / h or less) within a certain distance range.

  As described above, it is possible to suppress the deviation between the initial positions of the scale 104A of the pressure gauge 16 and the pointer 80, thereby reducing the measurement error of the internal pressure of the tire 14 measured by the pressure gauge 16.

It is the perspective view which showed the valve adapter of the sealing and pump-up apparatus which concerns on embodiment of this invention. It is the perspective view which showed the injection | pouring unit of the sealing and pump-up apparatus which concerns on embodiment of this invention. 1 is a horizontal sectional view of a discharge port of a liquid agent container, showing a sealing / pump-up device according to an embodiment of the present invention. It is the schematic block diagram which showed the structure of the sealing and pump-up apparatus which concerns on embodiment of this invention. (A) is sectional drawing which shows the structure of the liquid agent container, injection | pouring unit, etc. in a sealing pump-up apparatus. (B) is an enlarged view of a piercing member and a jig insertion hole. (C) is the bottom view which looked at the piercing member from the lower side. (A) is sectional drawing which shows the structure of a liquid agent container, an injection | pouring unit, and a jig, (B) is a bottom view of an injection | pouring unit, (C) is sectional drawing of a jig, (D) is a jig | tool. It is a side view. It is sectional drawing of the liquid agent container which shows the state before the piercing member extruded with the jig pierces an aluminum seal, and an injection | pouring unit. (A) is sectional drawing of the liquid agent container and injection | pouring unit which show the state after a piercing member pierces an aluminum seal. (B) is the BB sectional drawing of FIG. 8 (A).

Explanation of symbols

10 Sealing device (Sealing / pump-up device)
12 Compressor unit (air supply means)
14 Tire 16 Pressure gauge 18 Liquid agent container 20 Injection unit 29 Outlet (discharge port)
32 Sealing agent 40 Pressurized liquid supply chamber 70 Valve adapter 78 Joint hose (hose member)
80 Pointer 82 Pressure gauge main body 92 Adjustment hole 94 Screw member (fixing member)
104A scale 104 scale

Claims (4)

A rotating pointer supported by the device body;
A scale plate that includes a scale that indicates a pressure value corresponding to the rotation position of the pointer, and that is supported by the apparatus main body so as to be rotatable about the rotation center of the pointer;
Fixing means for fixing the scale plate to the apparatus main body;
A pressure gauge comprising: The fixing means includes
An adjustment hole formed in the dial,
A fixing member that passes through the adjustment hole and is screwed into the apparatus main body so as to sandwich and fix the scale plate between the apparatus main body,
The pressure gauge according to claim 1, comprising:   The pressure gauge according to claim 2, wherein the adjustment hole extends along an arc centered on a central axis of the pointer. Air supply means for supplying pressurized air;
An injection unit that is connected to the air supply means and includes a pressurized liquid supply chamber to which pressurized air from the air supply means is supplied;
A liquid agent container connected to the injection unit, containing a sealing agent, and having a discharge port for discharging the sealing agent into the pressurized liquid supply chamber;
A hose member having one end attached to the injection unit and communicating with the pressurized liquid supply chamber, and the other end communicating with a tire valve of a pneumatic tire;
A valve adapter provided at the tip of the hose member and connectable to the tire valve;
The pressure gauge according to any one of claims 1 to 3, which measures an internal pressure of the pneumatic tire,
A sealing / pump-up device.

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